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Roskar G, Morley JW, Buckel JA. Seasonality and relative abundance within an elasmobranch assemblage near a major biogeographic divide. PLoS One 2024; 19:e0300697. [PMID: 38924019 PMCID: PMC11207119 DOI: 10.1371/journal.pone.0300697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 03/04/2024] [Indexed: 06/28/2024] Open
Abstract
Nearshore waters are utilized by elasmobranchs in various ways, including foraging, reproduction, and migration. Multiple elasmobranch species have been previously documented in the nearshore waters of North Carolina, USA, which has a biogeographic break at Cape Hatteras on the Atlantic coast. However, comprehensive understanding of the elasmobranch community in this region is still lacking. Monthly year-round trawling conducted along two ocean transects (near Cape Lookout and Masonboro Inlet in 5 to 18 m depth) in Onslow Bay, North Carolina provided the opportunity to examine the dynamics and seasonal patterns of this community using a multivariate approach, including permutational multivariate analysis of variance and nonparametric BIO-ENV analysis. From November 2004 to April 2008, 21,149 elasmobranchs comprised of 20 species were caught, dominated by spiny dogfish (Squalus acanthias) and clearnose skate (Rostroraja eglanteria). All species exhibited seasonal variation in abundance, but several key species contributed the most to seasonal differences in species composition within each transect. Spiny dogfish was most abundant in the winter at both locations, comprised mainly of mature females. Although clearnose skate was caught in all seasons, the species was most abundant during the spring and fall. Atlantic sharpnose (Rhizoprionodon terraenovae) was one of the most abundant species in the summer, and two distinct size cohorts were documented. Temperature appeared to be the main abiotic factor driving the community assemblage. The extensive year-round sampling provided the ability to better understand the dramatic seasonal variation in species composition and provides new information on the relative abundance of several understudied elasmobranch species that may be of significant ecological importance. Our results underscore the importance of inner continental shelf waters as important elasmobranch habitat and provide baseline data to examine for future shifts in timing and community structure at the northern portion of the biogeographic break at Cape Hatteras.
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Affiliation(s)
- Grace Roskar
- Institute of Marine Sciences, University of North Carolina at Chapel Hill, Morehead City, North Carolina, United States of America
| | - James W. Morley
- Department of Biology, Coastal Studies Institute, East Carolina University, Wanchese, North Carolina, United States of America
| | - Jeffrey A. Buckel
- Department of Applied Ecology, Center for Marine Sciences and Technology, North Carolina State University, Morehead City, North Carolina, United States of America
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2
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Waller MJ, Humphries NE, Womersley FC, Loveridge A, Jeffries AL, Watanabe Y, Payne N, Semmens J, Queiroz N, Southall EJ, Sims DW. The vulnerability of sharks, skates, and rays to ocean deoxygenation: Physiological mechanisms, behavioral responses, and ecological impacts. JOURNAL OF FISH BIOLOGY 2024. [PMID: 38852616 DOI: 10.1111/jfb.15830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 05/08/2024] [Accepted: 05/20/2024] [Indexed: 06/11/2024]
Abstract
Levels of dissolved oxygen in open ocean and coastal waters are decreasing (ocean deoxygenation), with poorly understood effects on marine megafauna. All of the more than 1000 species of elasmobranchs (sharks, skates, and rays) are obligate water breathers, with a variety of life-history strategies and oxygen requirements. This review demonstrates that although many elasmobranchs typically avoid hypoxic water, they also appear capable of withstanding mild to moderate hypoxia with changes in activity, ventilatory responses, alterations to circulatory and hematological parameters, and morphological alterations to gill structures. However, such strategies may be insufficient to withstand severe, progressive, or prolonged hypoxia or anoxia where anaerobic metabolic pathways may be used for limited periods. As water temperatures increase with climate warming, ectothermic elasmobranchs will exhibit elevated metabolic rates and are likely to be less able to tolerate the effects of even mild hypoxia associated with deoxygenation. As a result, sustained hypoxic conditions in warmer coastal or surface-pelagic waters are likely to lead to shifts in elasmobranch distributions. Mass mortalities of elasmobranchs linked directly to deoxygenation have only rarely been observed but are likely underreported. One key concern is how reductions in habitat volume as a result of expanding hypoxia resulting from deoxygenation will influence interactions between elasmobranchs and industrial fisheries. Catch per unit of effort of threatened pelagic sharks by longline fisheries, for instance, has been shown to be higher above oxygen minimum zones compared to adjacent, normoxic regions, and attributed to vertical habitat compression of sharks overlapping with increased fishing effort. How a compound stressor such as marine heatwaves alters vulnerability to deoxygenation remains an open question. With over a third of elasmobranch species listed as endangered, a priority for conservation and management now lies in understanding and mitigating ocean deoxygenation effects in addition to population declines already occurring from overfishing.
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Affiliation(s)
- Matt J Waller
- Marine Biological Association, The Laboratory, Plymouth, UK
- Ocean and Earth Science, National Oceanography Centre Southampton, University of Southampton, Southampton, UK
| | | | | | | | - Amy L Jeffries
- Marine Biological Association, The Laboratory, Plymouth, UK
- Ocean and Earth Science, National Oceanography Centre Southampton, University of Southampton, Southampton, UK
| | - Yuuki Watanabe
- Research Center for Integrative Evolutionary Science, The Graduate University for Advanced Studies, SOKENDAI, Kanagawa, Japan
| | - Nicholas Payne
- Department of Zoology, School of Natural Sciences, Trinity College Dublin, Dublin, Ireland
| | - Jayson Semmens
- Institue for Marine and Antarctic Studies, University of Tasmania, Hobart, Australia
| | - Nuno Queiroz
- CIBIO/InBIO, Universidade do Porto, Vairão, Portugal
- BIOPOLIS, Program in Genomics, Biodiversity and Land Planning, CIBIO, Vairão, Portugal
| | | | - David W Sims
- Marine Biological Association, The Laboratory, Plymouth, UK
- Ocean and Earth Science, National Oceanography Centre Southampton, University of Southampton, Southampton, UK
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3
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Xing Q, Yu H, Wang H. Global mapping and evolution of persistent fronts in Large Marine Ecosystems over the past 40 years. Nat Commun 2024; 15:4090. [PMID: 38744883 PMCID: PMC11094120 DOI: 10.1038/s41467-024-48566-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 05/06/2024] [Indexed: 05/16/2024] Open
Abstract
Ocean fronts, characterized by narrow zones with sharp changes in water properties, are vital hotspots for ecosystem services and key regulators of regional and global climates. Global change is reshaping the distribution of material and energy in the ocean; however, it remains unclear how fronts have varied in the last few decades. Here, we present a global, fine-scale digital atlas of persistent fronts around Large Marine Ecosystems and demonstrate significant global increases in both their occurrence and intensity. In subtropical regions (around boundary currents and upwelling systems) and polar regions, persistent frontal occurrence and intensity are rapidly increasing, while in tropical regions, they remain stable or slightly decrease. These enhancements may be respectively related to changes in boundary currents, upwelling, and sea ice retreat. This spatially heterogeneous trend holds important implications for the redistribution of front-related ecosystem services and air-sea interactions but has not been captured by representative high-resolution climate projections models or observation-assimilated ocean models.
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Affiliation(s)
- Qinwang Xing
- Institute of Marine Science and Technology, Shandong University, Qingdao, 266237, China
| | - Haiqing Yu
- Institute of Marine Science and Technology, Shandong University, Qingdao, 266237, China.
| | - Hui Wang
- Institute of Marine Science and Technology, Shandong University, Qingdao, 266237, China
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519080, China
- National Marine Environmental Forecasting Center, 100086, Beijing, China
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4
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Gandra M, Winkler AC, Afonso P, Abecasis D. Long-distance migrations and seasonal movements of meagre (Argyrosomus regius), a large coastal predator, along the Iberian Peninsula coast. MOVEMENT ECOLOGY 2024; 12:35. [PMID: 38725044 PMCID: PMC11080147 DOI: 10.1186/s40462-024-00469-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 04/06/2024] [Indexed: 05/12/2024]
Abstract
BACKGROUND The meagre, Argyrosomus regius, is a large coastal predatory fish inhabiting waters from the north-eastern Atlantic and Mediterranean Sea, where it is targeted by commercial and recreational fisheries. Previous genetic studies have found an unexpectedly high population differentiation not only between the Atlantic and the Mediterranean, but also along the Atlantic coast. However, the reasons underpinning this genetic barrier remained unclear. Likewise, even though the species is amongst the world's largest marine teleosts, knowledge about its movement ecology and migratory behaviour remains notably scarce, and primarily reliant on fisheries-dependent data. METHODS In this study, we used a combination of acoustic telemetry and pop-up satellite archival tags to investigate the movements of 22 adult meagre (70-143 cm total length) along the Southwestern coast of the Iberian Peninsula. RESULTS Our results strongly suggest that the previously reported genetic differentiation is not maintained by limited adult dispersal/movement, as hypothesized. On the contrary, we documented some of the longest individual annual migrations ever recorded for a coastal teleost, up to > 2000 km, with frequent back-and-forth movements between the West and Southern Iberian coasts. Moreover, their detected regional movement patterns support the existence of a marked seasonal behavioural shift, with individuals being less active and moving to deeper waters during winter, and are consistent with spawning philopatry associated to their summer reproductive movements. Finally, we identified putative aggregation areas that may harbour important feeding/overwintering grounds. CONCLUSIONS These findings shed new light on the movement and behaviour patterns of meagre that may be of particular importance for the conservation and spatial management of this species throughout its range, and open the door to further research on functional connectivity.
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Affiliation(s)
- Miguel Gandra
- Centre of Marine Sciences (CCMAR), University of the Algarve, Faro, Portugal.
| | - Alexander C Winkler
- Centre of Marine Sciences (CCMAR), University of the Algarve, Faro, Portugal
- Department of Ichthyology and Fisheries Science, Rhodes University, Makhanda, South Africa
| | - Pedro Afonso
- Institute of Marine Sciences - OKEANOS, University of the Azores, Horta, Portugal
- Institute of Marine Research - IMAR, University of the Azores, Horta, Portugal
| | - David Abecasis
- Centre of Marine Sciences (CCMAR), University of the Algarve, Faro, Portugal
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Welch H, Clavelle T, White TD, Cimino MA, Kroodsma D, Hazen EL. Unseen overlap between fishing vessels and top predators in the northeast Pacific. SCIENCE ADVANCES 2024; 10:eadl5528. [PMID: 38446890 PMCID: PMC10917345 DOI: 10.1126/sciadv.adl5528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 01/30/2024] [Indexed: 03/08/2024]
Abstract
Accurate assessments of human-wildlife risk associated with industrial fishing are critical for the conservation of marine top predators. Automatic Identification System (AIS) data provide a means of mapping fishing and estimating human-wildlife risk; however, risk can be obscured by gaps in the AIS record due to technical issues and intentional disabling. We assessed the extent to which unseen fishing vessel activity due to AIS gaps obscured estimates of overlap between fishing vessel activity and 14 marine predators including sharks, tunas, mammals, seabirds, and critically endangered leatherback turtles. Among vessels equipped with AIS in the northeast Pacific, up to 24% of total predator overlap with fishing vessel activity was unseen, and up to 36% was unseen for some individual species. Waters near 10°N had high unseen overlap with sharks yet low reported shark catch, revealing potential discrepancies in self-reported datasets. Accounting for unseen fishing vessel activity illuminates hidden human-wildlife risk, demonstrating challenges and solutions for transparent and sustainable marine fisheries.
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Affiliation(s)
- Heather Welch
- Institute of Marine Science, University of California, Santa Cruz, Santa Cruz, CA, USA
- Environmental Research Division, Southwest Fisheries Science Center, Monterey, CA, USA
| | | | | | - Megan A. Cimino
- Institute of Marine Science, University of California, Santa Cruz, Santa Cruz, CA, USA
- Environmental Research Division, Southwest Fisheries Science Center, Monterey, CA, USA
| | | | - Elliott L. Hazen
- Institute of Marine Science, University of California, Santa Cruz, Santa Cruz, CA, USA
- Environmental Research Division, Southwest Fisheries Science Center, Monterey, CA, USA
- Hopkins Marine Station, Stanford University, Pacific Grove, CA, USA
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6
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Riekkola L, Liu OR, Ward EJ, Holland DS, Feist BE, Samhouri JF. Modeling the spatiotemporal patterns and drivers of Dungeness crab fishing effort to inform whale entanglement risk mitigation on the U.S. West Coast. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 351:119735. [PMID: 38113786 DOI: 10.1016/j.jenvman.2023.119735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 11/17/2023] [Accepted: 11/26/2023] [Indexed: 12/21/2023]
Abstract
Understanding and characterizing the spatiotemporal dynamics of fishing fleets is crucial for ecosystem-based fisheries management (EBFM). EBFM must not only account for the sustainability of target species catches, but also for the collateral impacts of fishing operations on habitats and non-target species. Increased rates of large whale entanglements in commercial Dungeness crab fishing gear have made reducing whale-fishery interactions a current and pressing challenge on the U.S. West Coast. While several habitat models exist for different large whale species along the West Coast, less is known about the crab fishery and the degree to which different factors influence the intensity and distribution of aggregate fishing effort. Here, we modeled the spatiotemporal patterns of Dungeness crab fishing effort in Oregon and Washington as a function of environmental, economic, temporal, social, and management related predictor variables using generalized linear mixed effects models. We then assessed the predictive performance of such models and discussed their usefulness in informing fishery management. Our models revealed low between-year variability and consistent spatial and temporal patterns in commercial Dungeness crab fishing effort. However, fishing effort was also responsive to multiple environmental, economic and management cues, which influenced the baseline effort distribution pattern. The best predictive model, chosen through out-of-sample cross-validation, showed moderate predictive performance and relied upon environmental, economic, and social covariates. Our results help fill the current knowledge gap around Dungeness crab fleet dynamics, and support growing calls to integrate fisheries behavioral data into fisheries management and marine spatial planning.
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Affiliation(s)
- Leena Riekkola
- NRC Research Associateship Program, Conservation Biology Division, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Seattle, WA, 98112, USA.
| | - Owen R Liu
- NRC Research Associateship Program, Conservation Biology Division, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Seattle, WA, 98112, USA; Ocean Associates, Inc., Under Contract to the Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, 2725 Montlake Blvd. E., Seattle, WA, 98112, USA
| | - Eric J Ward
- Conservation Biology Division, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Seattle, WA, 98112, USA
| | - Daniel S Holland
- Conservation Biology Division, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Seattle, WA, 98112, USA
| | - Blake E Feist
- Conservation Biology Division, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Seattle, WA, 98112, USA
| | - Jameal F Samhouri
- Conservation Biology Division, Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Seattle, WA, 98112, USA.
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7
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Humphries NE, Fuller DW, Schaefer KM, Sims DW. Highly active fish in low oxygen environments: vertical movements and behavioural responses of bigeye and yellowfin tunas to oxygen minimum zones in the eastern Pacific Ocean. MARINE BIOLOGY 2024; 171:55. [PMID: 38226137 PMCID: PMC10787700 DOI: 10.1007/s00227-023-04366-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 11/24/2023] [Indexed: 01/17/2024]
Abstract
Oxygen minimum zones in the open ocean are predicted to significantly increase in volume over the coming decades as a result of anthropogenic climatic warming. The resulting reduction in dissolved oxygen (DO) in the pelagic realm is likely to have detrimental impacts on water-breathing organisms, particularly those with higher metabolic rates, such as billfish, tunas, and sharks. However, little is known about how free-living fish respond to low DO environments, and therefore, the effect increasing OMZs will have cannot be predicted reliably. Here, we compare the responses of two active predators (bigeye tuna Thunnus obesus and yellowfin tuna Thunnus albacares) to DO at depth throughout the eastern Pacific Ocean. Using time-series data from 267 tagged tunas (59,910 days) and 3D maps of modelled DO, we find that yellowfin tuna respond to low DO at depth by spending more time in shallower, more oxygenated waters. By contrast, bigeye tuna, which forage at deeper depths well below the thermocline, show fewer changes in their use of the water column. However, we find that bigeye tuna increased the frequency of brief upward vertical excursions they performed by four times when DO at depth was lower, but with no concomitant significant difference in temperature, suggesting that this behaviour is driven in part by the need to re-oxygenate following time spent in hypoxic waters. These findings suggest that increasing OMZs will impact the behaviour of these commercially important species, and it is therefore likely that other water-breathing predators with higher metabolic rates will face similar pressures. A more comprehensive understanding of the effect of shoaling OMZs on pelagic fish vertical habitat use, which may increase their vulnerability to surface fisheries, will be important to obtain if these effects are to be mitigated by future management actions. Supplementary Information The online version contains supplementary material available at 10.1007/s00227-023-04366-2.
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Affiliation(s)
- Nicolas E. Humphries
- The Laboratory, Marine Biological Association, Citadel Hill, Plymouth, PL1 2PB UK
| | - Daniel W. Fuller
- Inter-American Tropical Tuna Commission, La Jolla, San Diego, CA USA
| | - Kurt M. Schaefer
- Inter-American Tropical Tuna Commission, La Jolla, San Diego, CA USA
| | - David W. Sims
- The Laboratory, Marine Biological Association, Citadel Hill, Plymouth, PL1 2PB UK
- Ocean and Earth Science, University of Southampton, National Oceanography Centre Southampton, Waterfront Campus, Southampton, SO14 3ZH UK
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Olin JA, Urakawa H, Frisk MG, Newton AL, Manz M, Fogg M, McMullen C, Crawford L, Shipley ON. DNA metabarcoding of cloacal swabs provides insight into diets of highly migratory sharks in the Mid-Atlantic Bight. JOURNAL OF FISH BIOLOGY 2023; 103:1409-1418. [PMID: 37640692 DOI: 10.1111/jfb.15543] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 07/27/2023] [Accepted: 08/26/2023] [Indexed: 08/31/2023]
Abstract
The abundances of migratory shark species observed throughout the Mid-Atlantic Bight (MAB) during productive summer months suggest that this region provides critical habitat and prey resources to these taxa. However, the principal prey assemblages sustaining migratory shark biomass in this region are poorly defined. We applied high-throughput DNA metabarcoding to shark feces derived from cloacal swabs across nine species of Carcharhinid and Lamnid sharks to (1) quantify the contribution of broad taxa (e.g., invertebrates, fishes) supporting shark biomass during seasonal residency in the MAB and (2) determine whether the species displayed distinct dietary preference indicative of resource partitioning. DNA metabarcoding resulted in high taxonomic (species-level) resolution of shark diets with actinopterygian and elasmobranch fishes as the dominant prey categories across the species. DNA metabarcoding identified several key prey groups consistent across shark taxa that are likely integral for sustaining their biomass in this region, including Atlantic menhaden (Brevoortia tyrannus), Atlantic mackerel (Scomber scombrus), and benthic elasmobranchs, including skates. Our results are consistent with previously published stomach content data for the shark species of similar size range in the Northwest Atlantic Ocean, supporting the efficacy of cloacal swab DNA metabarcoding as a minimally invasive diet reconstruction technique. The high reliance of several shark species on Atlantic menhaden could imply wasp-waist food-web conditions during the summer months, whereby high abundances of forage fishes sustain a diverse suite of migratory sharks within a complex, seasonal food web.
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Affiliation(s)
- Jill A Olin
- Department of Biological Sciences, Great Lakes Research Center, Michigan Technological University, Houghton, Michigan, USA
| | - Hidetoshi Urakawa
- Department of Marine and Ecological Sciences, Florida Gulf Coast University, Fort Myers, Florida, USA
| | - Michael G Frisk
- School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, New York, USA
| | - Alisa L Newton
- New York Aquarium, Wildlife Conservation Society, Bronx, New York, USA
| | - Maria Manz
- School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, New York, USA
| | - Michael Fogg
- School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, New York, USA
| | - Colin McMullen
- Department of Marine and Ecological Sciences, Florida Gulf Coast University, Fort Myers, Florida, USA
| | - Lisa Crawford
- School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, New York, USA
| | - Oliver N Shipley
- School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, New York, USA
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Waller MJ, Queiroz N, da Costa I, Cidade T, Loureiro B, Womersley FC, Fontes J, Afonso P, Macena BCL, Loveridge A, Humphries NE, Southall EJ, Sims DW. Direct measurement of cruising and burst swimming speeds of the shortfin mako shark (Isurus oxyrinchus) with estimates of field metabolic rate. JOURNAL OF FISH BIOLOGY 2023; 103:864-883. [PMID: 37395550 PMCID: PMC10952363 DOI: 10.1111/jfb.15475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 05/30/2023] [Accepted: 06/01/2023] [Indexed: 07/04/2023]
Abstract
The shortfin mako shark is a large-bodied pursuit predator thought to be capable of the highest swimming speeds of any elasmobranch and potentially one of the highest energetic demands of any marine fish. Nonetheless, few direct speed measurements have been reported for this species. Here, animal-borne bio-loggers attached to two mako sharks were used to provide direct measurements of swimming speeds, kinematics and thermal physiology. Mean sustained (cruising) speed was 0.90 m s-1 (±0.07 s.d.) with a mean tail-beat frequency (TBF) of 0.51 Hz (±0.16 s.d.). The maximum burst speed recorded was 5.02 m s-1 (TBFmax = 3.65 Hz) from a 2 m long female. Burst swimming was sustained for 14 s (mean speed = 2.38 m s-1 ), leading to a 0.24°C increase in white muscle temperature in the 12.5 min after the burst. Routine field metabolic rate was estimated at 185.2 mg O2 kg-1 h-1 (at 18°C ambient temperature). Gliding behaviour (zero TBF) was more frequently observed after periods of high activity, especially after capture when internal (white muscle) temperature approached 21°C (ambient temperature: 18.3°C), indicating gliding probably functions as an energy recovery mechanism and limits further metabolic heat production. The results show shortfin mako sharks generally cruise at speeds similar to other endothermic fish - but faster than ectothermic sharks - with the maximum recorded burst speed being among the highest so far directly measured among sharks, tunas and billfishes. This newly recorded high-oxygen-demand performance of mako sharks suggests it may be particularly vulnerable to habitat loss due to climate-driven ocean deoxygenation.
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Affiliation(s)
- Matt J. Waller
- Marine Biological AssociationThe LaboratoryPlymouthUK
- Ocean and Earth Science, National Oceanography Centre SouthamptonUniversity of SouthamptonSouthamptonUK
| | - Nuno Queiroz
- Marine Biological AssociationThe LaboratoryPlymouthUK
- CIBIO/InBIO, Universidade do PortoCampus Agrário de Vairão, Rua Padre Armando QuintasVairãoPortugal
| | - Ivo da Costa
- Marine Biological AssociationThe LaboratoryPlymouthUK
- CIBIO/InBIO, Universidade do PortoCampus Agrário de Vairão, Rua Padre Armando QuintasVairãoPortugal
| | - Tiago Cidade
- CIBIO/InBIO, Universidade do PortoCampus Agrário de Vairão, Rua Padre Armando QuintasVairãoPortugal
| | - Bruno Loureiro
- CIBIO/InBIO, Universidade do PortoCampus Agrário de Vairão, Rua Padre Armando QuintasVairãoPortugal
| | - Freya C. Womersley
- Marine Biological AssociationThe LaboratoryPlymouthUK
- Ocean and Earth Science, National Oceanography Centre SouthamptonUniversity of SouthamptonSouthamptonUK
| | - Jorge Fontes
- Institute of Marine Research – IMARUniversidade dos AçoresHortaPortugal
- Institute of Marine Sciences – OKEANOSUniversity of the AzoresHortaPortugal
| | - Pedro Afonso
- Institute of Marine Research – IMARUniversidade dos AçoresHortaPortugal
- Institute of Marine Sciences – OKEANOSUniversity of the AzoresHortaPortugal
| | - Bruno C. L. Macena
- Institute of Marine Research – IMARUniversidade dos AçoresHortaPortugal
- Institute of Marine Sciences – OKEANOSUniversity of the AzoresHortaPortugal
| | | | | | | | - David W. Sims
- Marine Biological AssociationThe LaboratoryPlymouthUK
- Ocean and Earth Science, National Oceanography Centre SouthamptonUniversity of SouthamptonSouthamptonUK
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10
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Morten JM, Buchanan PJ, Egevang C, Glissenaar IA, Maxwell SM, Parr N, Screen JA, Vigfúsdóttir F, Vogt‐Vincent NS, Williams DA, Williams NC, Witt MJ, Hawkes LA, Thurston W. Global warming and arctic terns: Estimating climate change impacts on the world's longest migration. GLOBAL CHANGE BIOLOGY 2023; 29:5596-5614. [PMID: 37492997 PMCID: PMC10946559 DOI: 10.1111/gcb.16891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 06/29/2023] [Accepted: 07/01/2023] [Indexed: 07/27/2023]
Abstract
Climate change is one of the top three global threats to seabirds, particularly species that visit polar regions. Arctic terns migrate between both polar regions annually and rely on productive marine areas to forage, on sea ice for rest and foraging, and prevailing winds during flight. Here, we report 21st-century trends in environmental variables affecting arctic terns at key locations along their Atlantic/Indian Ocean migratory flyway during the non-breeding seasons, identified through tracking data. End-of-century climate change projections were derived from Earth System Models and multi-model means calculated in two Shared Socioeconomic Pathways: 'middle-of-the-road' and 'fossil-fuelled development' scenarios. Declines in North Atlantic primary production emerge as a major impact to arctic terns likely to affect their foraging during the 21st century under a 'fossil-fuelled development' scenario. Minimal changes are, however, projected at three other key regions visited by arctic terns (Benguela Upwelling, Subantarctic Indian Ocean and the Southern Ocean). Southern Ocean sea ice extent is likely to decline, but the magnitude of change and potential impacts on tern survival are uncertain. Small changes (<1 m s-1 ) in winds are projected in both scenarios, but with minimal likely impacts on migration routes and duration. However, Southern Ocean westerlies are likely to strengthen and contract closer to the continent, which may require arctic terns to shift routes or flight strategies. Overall, we find minor effects of climate change on the migration of arctic terns, with the exception of poorer foraging in the North Atlantic. However, given that arctic terns travel over huge spatial scales and live for decades, they integrate minor changes in conditions along their migration routes such that the sum effect may be greater than the parts. Meeting carbon emission targets is vital to slow these end-of-century climatic changes and minimise extinction risk for a suite of polar species.
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Affiliation(s)
- Joanne M. Morten
- Department of Biosciences, Faculty of Health and Life SciencesUniversity of Exeter, Hatherly LaboratoriesExeterUK
| | - Pearse J. Buchanan
- Department of Earth, Ocean and Ecological SciencesUniversity of LiverpoolLiverpoolUK
| | - C. Egevang
- Greenland Institute of Natural ResourcesNuukGreenland
| | - Isolde A. Glissenaar
- Bristol Glaciology Centre, School of Geographical SciencesUniversity of BristolBristolUK
| | - Sara M. Maxwell
- School of Interdisciplinary Arts & SciencesUniversity of WashingtonBothellWashingtonUSA
| | - Nicole Parr
- Department of Biosciences, Faculty of Health and Life SciencesUniversity of Exeter, Hatherly LaboratoriesExeterUK
| | - James A. Screen
- Department of Mathematics and Statistics, Faculty of Environment, Science and EconomyUniversity of ExeterExeterUK
| | | | | | - Daniel A. Williams
- Department of Mathematics and Statistics, Faculty of Environment, Science and EconomyUniversity of ExeterExeterUK
| | - Ned C. Williams
- Department of Mathematics and Statistics, Faculty of Environment, Science and EconomyUniversity of ExeterExeterUK
| | - Matthew J. Witt
- Department of Biosciences, Faculty of Health and Life SciencesUniversity of Exeter, Hatherly LaboratoriesExeterUK
| | - Lucy A. Hawkes
- Department of Biosciences, Faculty of Health and Life SciencesUniversity of Exeter, Hatherly LaboratoriesExeterUK
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11
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Shea BD, Gallagher AJ, Bomgardner LK, Ferretti F. Quantifying longline bycatch mortality for pelagic sharks in western Pacific shark sanctuaries. SCIENCE ADVANCES 2023; 9:eadg3527. [PMID: 37585534 PMCID: PMC10431710 DOI: 10.1126/sciadv.adg3527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Accepted: 07/17/2023] [Indexed: 08/18/2023]
Abstract
Marine protected areas are increasingly touted for their role in conserving large marine predators such as sharks, but their efficacy is debated. Seventeen "shark sanctuaries" have been established globally, but longline fishing continues within many such jurisdictions, leading to unknown levels of bycatch mortality levels. Using public data from Global Fishing Watch and Regional Fisheries Management Organizations, we quantified longline fishing within eight shark sanctuaries and estimated pelagic shark catch and mortality for seven pelagic shark species. Sanctuary mortality ranged from 600 individuals (Samoa) to 36,256 individuals (Federated States of Micronesia), equivalent to ~5% of hypothesized sustainable levels for blue sharks to ~40% for silky sharks, with high mortality levels in the Federated States of Micronesia, Palau, and the Marshall Islands. Unsustainable mortality rates were exceeded for silky sharks in two sanctuaries, highlighting a need for additional stock assessments and implementation of bycatch reduction measures. Big data integration workflows represent a transformative tool in fisheries management, particularly for data-poor species.
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Affiliation(s)
- Brendan D. Shea
- Department of Fish and Wildlife Conservation, Virginia Tech, Blacksburg, VA, USA
- Beneath the Waves, Herndon, VA, USA
| | - Austin J. Gallagher
- Beneath the Waves, Herndon, VA, USA
- Centre for Ecology and Conservation, College of Life and Environmental Sciences, University of Exeter Cornwall Campus, Penryn, Cornwall, UK
| | | | - Francesco Ferretti
- Department of Fish and Wildlife Conservation, Virginia Tech, Blacksburg, VA, USA
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12
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Mucientes G, Fernández‐Chacón A, Queiroz N, Sims DW, Villegas‐Ríos D. Juvenile survival and movements of two threatened oceanic sharks in the North Atlantic Ocean inferred from tag-recovery data. Ecol Evol 2023; 13:e10198. [PMID: 37351477 PMCID: PMC10283031 DOI: 10.1002/ece3.10198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 05/25/2023] [Accepted: 05/30/2023] [Indexed: 06/24/2023] Open
Abstract
Understanding population dynamics, movements, and fishing mortality is critical to establish effective shark conservation measures across international boundaries in the ocean. There are few survival and dispersal estimates of juveniles of oceanic shark species in the North Atlantic despite it being one of the most fished regions in the world. Here we provide estimates of dispersal, survival, and proportion of fishing mortality in the North Atlantic for two threatened oceanic sharks: the blue shark (Prionace glauca) and the shortfin mako shark (Isurus oxyrinchus). Our results are based on multi-event models applied to tag-recovery data of 700 blue sharks and 132 shortfin makos tagged over a decade. A total of 60 blue sharks (8.57% of tagged) and 30 makos (22.73%) were recovered by the longline fishery between 2009 and 2017. Tag-reporting rate (percentage of returned information when a tagged shark was caught) was estimated to be high (0.794 ± 0.232 SE). Mean annual survival, as predicted from the models, was higher for blue shark (0.835 ± 0.040 SE) than for shortfin mako (0.618 ± 0.189 SE). Models predicted that fishing caused more than a half of total mortality in the study area for both species (0.576 ± 0.209), and more than a third of tagged individuals dispersed from the study area permanently (0.359 ± 0.073). Our findings, focused mainly on juveniles from oceanic areas, contribute to a better understanding of shark population dynamics in the North Atlantic and highlight the need for further conservation measures for both blue shark and shortfin mako, such as implementing efficient bycatch mitigation measures and static/dynamic time-area closures in the open ocean.
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Affiliation(s)
- Gonzalo Mucientes
- Instituto de Investigaciones Marinas, Consejo Superior de Investigaciones Científicas (IIM‐CSIC)VigoSpain
- Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado (CIBIO‐InBIO)Universidade do PortoVairãoPortugal
- BIOPOLIS Program in Genomics, Biodiversity and Land PlanningCIBIOVairãoPortugal
| | - Albert Fernández‐Chacón
- Department of Natural Sciences, Centre for Coastal ResearchUniversity of AgderKristiansandNorway
- North Atlantic Marine Mammal CommissionTromsøNorway
| | - Nuno Queiroz
- Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado (CIBIO‐InBIO)Universidade do PortoVairãoPortugal
- BIOPOLIS Program in Genomics, Biodiversity and Land PlanningCIBIOVairãoPortugal
| | - David W. Sims
- Marine Biological AssociationPlymouthUK
- Ocean and Earth Science, National Oceanography Centre SouthamptonUniversity of SouthamptonSouthamptonUK
| | - David Villegas‐Ríos
- Instituto de Investigaciones Marinas, Consejo Superior de Investigaciones Científicas (IIM‐CSIC)VigoSpain
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13
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Riesgo L, Sanpera C, García-Barcelona S, Sánchez-Fortún M, Coll M, Navarro J. Understanding the role of ecological factors affecting mercury concentrations in the blue shark (Prionace glauca). CHEMOSPHERE 2023; 313:137642. [PMID: 36572364 DOI: 10.1016/j.chemosphere.2022.137642] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 12/21/2022] [Accepted: 12/22/2022] [Indexed: 06/17/2023]
Abstract
Human activities have increased environmental concentrations of pollutants in marine ecosystems, which can cause harmful effects on marine organisms. Top predators are particularly susceptible to bioaccumulation and biomagnification of pollutants through the food webs and are described as good sentinels for monitoring metal accumulation such mercury (Hg) in marine ecosystems. However, to be used as sentinels, it is important to understand the main ecological factors affecting the concentrations of pollutants in these organisms. In the present study, our main objective was to investigate the effect of body size, sex, trophic niche and geographic area on Hg concentrations in a top marine top predator, the blue shark (Prionace glauca). We analysed Hg in muscle samples from male and female blue sharks of different body sizes collected from the waters surrounding the Canary Islands and the South of Portugal, in the Atlantic Ocean, to waters of the north-western Mediterranean Sea. The results revealed that the sampling area was an important factor explaining Hg concentrations, showing higher values in the Mediterranean blue sharks. We also found a positive relationship between Hg concentrations and body size of blue sharks, indicating a bioaccumulation process of this pollutant in relation with body size. Moreover, we observed a relationship between Hg concentrations and δ13C values, a proxy of the use of inshore-offshore marine habitats. Individuals with depleted δ13C values that potentially foraged in offshore waters showed higher Hg values. Importantly, most of the analysed blue sharks presented Hg concentrations that exceeded the limits established by the European Union for human consumption.
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Affiliation(s)
- Lola Riesgo
- Institut de Ciències Del Mar (ICM), CSIC, Barcelona, Spain; Departament de Biologia Evolutiva, Ecologia I Ciències Ambientals, Universitat de Barcelona, Barcelona, Spain
| | - Carola Sanpera
- Departament de Biologia Evolutiva, Ecologia I Ciències Ambientals, Universitat de Barcelona, Barcelona, Spain
| | | | - Moisès Sánchez-Fortún
- Departament de Biologia Evolutiva, Ecologia I Ciències Ambientals, Universitat de Barcelona, Barcelona, Spain
| | - Marta Coll
- Institut de Ciències Del Mar (ICM), CSIC, Barcelona, Spain
| | - Joan Navarro
- Institut de Ciències Del Mar (ICM), CSIC, Barcelona, Spain.
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14
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Rondon-Medicci M, Cardoso LG, Mourato B, Dalla Rosa L. Blue shark (Prionace glauca) occurrence and relative abundance in the western South Atlantic Ocean influenced by spatiotemporal variability, environmental variables, and oceanographic processes. MARINE ENVIRONMENTAL RESEARCH 2023; 183:105842. [PMID: 36481717 DOI: 10.1016/j.marenvres.2022.105842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 11/26/2022] [Accepted: 11/29/2022] [Indexed: 06/17/2023]
Abstract
The aim of this study was to evaluate spatiotemporal patterns in the distribution and relative abundance of blue sharks and their relationship with environmental variables and oceanographic processes in the southwestern Atlantic Ocean. We modeled data on catch records from the Brazilian pelagic tuna longline fleet using generalized additive models (GAMs). The distribution of Prionace glauca was influenced by salinity, chlorophyll-a and temperature. Our models showed that both the catch per unit of fishing effort (CPUE) and the probability of presence increased mainly between March and August. The CPUE was also influenced by ocean depth and sea surface height, and the probability of occurrence by ocean fronts and slope. The highest CPUE values and probability of occurrence of blue sharks tended to occur mainly in parts of the continental slope off Brazil and at the Rio Grande Rise, characterized by the presence of seamounts. Such hotspots for P. glauca could potentially be considered in fisheries management plans.
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Affiliation(s)
- Maria Rondon-Medicci
- Laboratório de Ecologia e Conservação de Megafauna Marinha, Universidade Federal do Rio Grande - FURG. Instituto de Oceanografia, Av. Itália km. 8 s/n, Campus Carreiros, CEP 96203-000, Rio Grande, RS, Brazil; Programa de Pós-graduação em Oceanografia Biológica, Universidade Federal do Rio Grande - FURG. Instituto de Oceanografia, Rio Grande, RS, Brazil.
| | - Luis G Cardoso
- Programa de Pós-graduação em Oceanografia Biológica, Universidade Federal do Rio Grande - FURG. Instituto de Oceanografia, Rio Grande, RS, Brazil; Laboratório de Recursos Pesqueiros Demersais e Cefalópodes, Universidade Federal do Rio Grande - FURG. Instituto de Oceanografia, Rio Grande, RS, Brazil
| | - Bruno Mourato
- Instituto do Mar, Universidade Federal de São Paulo - UNIFESP, Santos, SP, Brazil
| | - L Dalla Rosa
- Laboratório de Ecologia e Conservação de Megafauna Marinha, Universidade Federal do Rio Grande - FURG. Instituto de Oceanografia, Av. Itália km. 8 s/n, Campus Carreiros, CEP 96203-000, Rio Grande, RS, Brazil; Programa de Pós-graduação em Oceanografia Biológica, Universidade Federal do Rio Grande - FURG. Instituto de Oceanografia, Rio Grande, RS, Brazil
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15
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Vidal A, Cardador L, Garcia-Barcelona S, Macias D, Druon JN, Coll M, Navarro J. The relative importance of biological and environmental factors on the trophodynamics of a pelagic marine predator, the blue shark (Prionace glauca). MARINE ENVIRONMENTAL RESEARCH 2023; 183:105808. [PMID: 36403409 DOI: 10.1016/j.marenvres.2022.105808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 11/05/2022] [Accepted: 11/07/2022] [Indexed: 06/16/2023]
Abstract
Marine ecosystems have been significantly altered by the cumulative impacts of human activities. Pelagic sharks have become vulnerable to increases in mortality rates caused by fishing. The decrease in number of these top predators could have substantial cascading effects on wider marine communities. Concerns about these potential impacts, and the critical need for effective management, have led to an increased interest in assessing the trophic ecology of sharks. While stable isotope analyses have been used to provide relevant insights about the trophic ecology of sharks, the causal factors leading to trophic variation between individuals has been largely overlooked. Here, we investigated the relative effect of biological factors, geographic location, and environmental factors on the spatial trophodynamics of the blue shark (Prionace glauca). Specifically, stable isotope values of δ15N and δ13C, and the estimated trophic position (TP) were analysed for 180 blue sharks collected from south of the Canary Islands in the Atlantic Ocean, to the north-western Mediterranean Sea. The results showed that models which included combined variables explained the variation in δ15N, TP and δ13C values better than models which considered only stand-alone predictors. The independent contributions of environmental variables and biological factors seemed to be more important than geographic location for δ15N and TP. δ15N and TP increased in a curvilinear fashion with body size, and TP was higher for females. In the case of δ13C values, only an effect from sex was observed. Among environmental variables, chlorophyll-a, pelagic productivity, and sea-surface temperature proved to be reliable predictors, particularly for δ15N and TP, most likely due to their relationship with productivity and prey availability. This study provides new information on ranking the factors that influence the trophodynamics of the blue shark, namely the environment, the geographic location, and the biological factors of the species.
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Affiliation(s)
- Alba Vidal
- Institut de Ciències Del Mar (ICM), CSIC, Passeig Marítim de la Barceloneta 37, 08003, Barcelona, Spain; Ecological and Forestry Applications Research Centre, Campus de Bellaterra (UAB), Edifici C, 08193, Cerdanyola Del Vallès, Spain
| | - Laura Cardador
- Ecological and Forestry Applications Research Centre, Campus de Bellaterra (UAB), Edifici C, 08193, Cerdanyola Del Vallès, Spain
| | | | - David Macias
- Centro Oceanográfico de Málaga (IEO-CSIC), Puerto Pesquero, s/n, 29640, Fuengirola, Spain
| | - Jean-Noel Druon
- Joint Research Centre (JRC), European Commission, Ispra, Italy
| | - Marta Coll
- Institut de Ciències Del Mar (ICM), CSIC, Passeig Marítim de la Barceloneta 37, 08003, Barcelona, Spain
| | - Joan Navarro
- Institut de Ciències Del Mar (ICM), CSIC, Passeig Marítim de la Barceloneta 37, 08003, Barcelona, Spain.
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16
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Tuya F, Pérez-Neira F, Espino F, Bosch NE, Meyers EK, Jiménez-Alvarado D, Castro JJ, Sobral A, Otero-Ferrer F, Haroun R. Coastal sharks and rays in the Northeastern Atlantic: From an urgent call to collect more data to the declaration of a marine corridor. Glob Ecol Conserv 2022. [DOI: 10.1016/j.gecco.2022.e02261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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17
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Guttridge TL, Müller L, Keller BA, Bond ME, Grubbs RD, Winram W, Howey LA, Frazier BS, Gruber SH. Vertical space use and thermal range of the great hammerhead (Sphyrna mokarran), (Rüppell, 1837) in the western North Atlantic. JOURNAL OF FISH BIOLOGY 2022; 101:797-810. [PMID: 36056454 DOI: 10.1111/jfb.15185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 08/01/2022] [Indexed: 06/15/2023]
Abstract
The great hammerhead (Sphyrna mokarran) is a highly mobile, large-bodied shark primarily found in coastal-pelagic and semi-oceanic waters across a circumtropical range. It is a target or by-catch species in multiple fisheries, and as a result, rapid population declines have occurred in many regions. These declines have contributed to the species being assessed as globally critically endangered on the IUCN Red List. Although conservation and management measures have yielded promising results in some regions, such as the United States, high levels of at-vessel and post-release mortality remain a major concern to the species population recovery. This examined the vertical space use and thermal range of pop-off archival satellite-tagged S. mokarran in the western North Atlantic Ocean, expanding the understanding of the ecological niche of this species and providing insight into by-catch mitigation strategies for fisheries managers. The results showed that S. mokarran predominantly used shallow depths (75% of records <30 m) and had a narrow temperature range (89% of records between 23 and 28°C). Individual differences in depth use were apparent, and a strong diel cycle was observed, with sharks occupying significantly deeper depths during the daytime. Furthermore, two individuals were confirmed pregnant with one migrating from the Bahamas to South Carolina, U.S.A., providing further evidence of regional connectivity and parturition off the U.S. East Coast. The findings suggest that S. mokarran may be vulnerable to incidental capture in the western North Atlantic commercial longline fisheries due to substantial vertical overlap between the species and the gear. The results can be incorporated into conservation and management efforts to develop and/or refine mitigation measures focused on reducing the by-catch and associated mortality of this species, which can ultimately aide S. mokarran population recovery in areas with poor conservation status.
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Affiliation(s)
- Tristan L Guttridge
- Saving the Blue, Cooper City, Florida, USA
- Bimini Biological Field Station Foundation, South Bimini, Bahamas
| | - Lukas Müller
- Marine Animal Ecology Group, Wageningen University, Wageningen, The Netherlands
- The Watermen Project, Geneva, Switzerland
| | - Bryan A Keller
- Saving the Blue, Cooper City, Florida, USA
- Coastal and Marine Laboratory, Florida State University, St. Teresa, Florida, USA
| | - Mark E Bond
- Department of Biological Sciences, Institute of Environment, Florida International University, North Miami, Florida, USA
| | - R Dean Grubbs
- South Carolina Department of Natural Resources, Marine Resources Research Institute, Charleston, South Carolina, USA
| | | | - Lucy A Howey
- Biosciences, College of Life and Environmental Sciences, University of Exeter, Exeter, UK
| | - Bryan S Frazier
- South Carolina Department of Natural Resources, Marine Resources Research Institute, Charleston, South Carolina, USA
| | - Samuel H Gruber
- Bimini Biological Field Station Foundation, South Bimini, Bahamas
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18
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Andrzejaczek S, Lucas TC, Goodman MC, Hussey NE, Armstrong AJ, Carlisle A, Coffey DM, Gleiss AC, Huveneers C, Jacoby DMP, Meekan MG, Mourier J, Peel LR, Abrantes K, Afonso AS, Ajemian MJ, Anderson BN, Anderson SD, Araujo G, Armstrong AO, Bach P, Barnett A, Bennett MB, Bezerra NA, Bonfil R, Boustany AM, Bowlby HD, Branco I, Braun CD, Brooks EJ, Brown J, Burke PJ, Butcher P, Castleton M, Chapple TK, Chateau O, Clarke M, Coelho R, Cortes E, Couturier LIE, Cowley PD, Croll DA, Cuevas JM, Curtis TH, Dagorn L, Dale JJ, Daly R, Dewar H, Doherty PD, Domingo A, Dove ADM, Drew M, Dudgeon CL, Duffy CAJ, Elliott RG, Ellis JR, Erdmann MV, Farrugia TJ, Ferreira LC, Ferretti F, Filmalter JD, Finucci B, Fischer C, Fitzpatrick R, Forget F, Forsberg K, Francis MP, Franks BR, Gallagher AJ, Galvan-Magana F, García ML, Gaston TF, Gillanders BM, Gollock MJ, Green JR, Green S, Griffiths CA, Hammerschlag N, Hasan A, Hawkes LA, Hazin F, Heard M, Hearn A, Hedges KJ, Henderson SM, Holdsworth J, Holland KN, Howey LA, Hueter RE, Humphries NE, Hutchinson M, Jaine FRA, Jorgensen SJ, Kanive PE, Labaja J, Lana FO, Lassauce H, Lipscombe RS, Llewellyn F, Macena BCL, Mambrasar R, McAllister JD, McCully Phillips SR, McGregor F, McMillan MN, McNaughton LM, Mendonça SA, Meyer CG, Meyers M, Mohan JA, Montgomery JC, Mucientes G, Musyl MK, Nasby-Lucas N, Natanson LJ, O’Sullivan JB, Oliveira P, Papastamtiou YP, Patterson TA, Pierce SJ, Queiroz N, Radford CA, Richardson AJ, Richardson AJ, Righton D, Rohner CA, Royer MA, Saunders RA, Schaber M, Schallert RJ, Scholl MC, Seitz AC, Semmens JM, Setyawan E, Shea BD, Shidqi RA, Shillinger GL, Shipley ON, Shivji MS, Sianipar AB, Silva JF, Sims DW, Skomal GB, Sousa LL, Southall EJ, Spaet JLY, Stehfest KM, Stevens G, Stewart JD, Sulikowski JA, Syakurachman I, Thorrold SR, Thums M, Tickler D, Tolloti MT, Townsend KA, Travassos P, Tyminski JP, Vaudo JJ, Veras D, Wantiez L, Weber SB, Wells RD, Weng KC, Wetherbee BM, Williamson JE, Witt MJ, Wright S, Zilliacus K, Block BA, Curnick DJ. Diving into the vertical dimension of elasmobranch movement ecology. SCIENCE ADVANCES 2022; 8:eabo1754. [PMID: 35984887 PMCID: PMC9390984 DOI: 10.1126/sciadv.abo1754] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 07/07/2022] [Indexed: 06/15/2023]
Abstract
Knowledge of the three-dimensional movement patterns of elasmobranchs is vital to understand their ecological roles and exposure to anthropogenic pressures. To date, comparative studies among species at global scales have mostly focused on horizontal movements. Our study addresses the knowledge gap of vertical movements by compiling the first global synthesis of vertical habitat use by elasmobranchs from data obtained by deployment of 989 biotelemetry tags on 38 elasmobranch species. Elasmobranchs displayed high intra- and interspecific variability in vertical movement patterns. Substantial vertical overlap was observed for many epipelagic elasmobranchs, indicating an increased likelihood to display spatial overlap, biologically interact, and share similar risk to anthropogenic threats that vary on a vertical gradient. We highlight the critical next steps toward incorporating vertical movement into global management and monitoring strategies for elasmobranchs, emphasizing the need to address geographic and taxonomic biases in deployments and to concurrently consider both horizontal and vertical movements.
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Affiliation(s)
| | - Tim C.D. Lucas
- Department of Health Sciences, University of Leicester, Leicester, UK
| | | | - Nigel E. Hussey
- Department of Integrative Biology, University of Windsor, Windsor, ON, Canada
| | - Amelia J. Armstrong
- School of Biomedical Sciences, The University of Queensland, St Lucia, QLD, Australia
| | - Aaron Carlisle
- School of Marine Science and Policy, University of Delaware, Lewes, DE, USA
| | - Daniel M. Coffey
- Harte Research Institute for Gulf of Mexico Studies, Texas A&M University-Corpus Christi, Corpus Christi, TX, USA
| | - Adrian C. Gleiss
- Centre for Sustainable Aquatic Ecosystems, Harry Butler Institute, Murdoch University, Murdoch, WA, Australia
- Environmental and Conservation Sciences, Murdoch University, Murdoch, WA, Australia
| | - Charlie Huveneers
- Southern Shark Ecology Group, College of Science and Engineering, Flinders University, Adelaide, SA, Australia
| | - David M. P. Jacoby
- Lancaster Environment Centre, Lancaster University, Lancaster, UK
- Zoological Society of London, London, UK
| | - Mark G. Meekan
- Australian Institute of Marine Science, Indian Ocean Marine Research Centre, Crawley, WA, Australia
| | - Johann Mourier
- School of Natural Sciences, Macquarie University, Sydney, NSW, Australia
- UMS 3514 Plateforme Marine Stella Mare, Université de Corse Pasquale Paoli, Biguglia, France
| | - Lauren R. Peel
- The Manta Trust, Catemwood House, Corscombe, Dorset, UK
- Save Our Seas Foundation–D’Arros Research Centre, Geneva, Switzerland
| | - Kátya Abrantes
- College of Science and Engineering, James Cook University, Townsville, QLD, Australia
- Biopixel Oceans Foundation, Cairns, QLD, Australia
| | - André S. Afonso
- Marine and Environmental Sciences Centre, Department of Life Sciences, University of Coimbra, Coimbra, Portugal
- Departamento de Pesca e Aquicultura, Universidade Federal Rural de Pernambuco, Recife, PE, Brazil
| | - Matthew J. Ajemian
- Harbor Branch Oceanographic Institute, Florida Atlantic University, Fort Pierce, FL, USA
| | - Brooke N. Anderson
- New College of Interdisciplinary Arts and Sciences, Arizona State University, Phoenix, AZ, USA
| | | | - Gonzalo Araujo
- Environmental Science Program, Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar
- Marine Research and Conservation Foundation, Lydeard St Lawrence, Somerset, UK
| | - Asia O. Armstrong
- School of Biomedical Sciences, The University of Queensland, St Lucia, QLD, Australia
| | - Pascal Bach
- MARBEC, University of Montpellier, CNRS, Ifremer, IRD, Sète, France
| | - Adam Barnett
- College of Science and Engineering, James Cook University, Townsville, QLD, Australia
- Biopixel Oceans Foundation, Cairns, QLD, Australia
| | - Mike B. Bennett
- School of Biomedical Sciences, The University of Queensland, St Lucia, QLD, Australia
| | - Natalia A. Bezerra
- Departamento de Pesca e Aquicultura, Universidade Federal Rural de Pernambuco, Recife, PE, Brazil
- Departamento de Oceanografia e Ecologia, Universidade Federal do Espirito Santo, Vitória, ES, Brazil
| | - Ramon Bonfil
- El Colegio de la Frontera Sur (ECOSUR)–Unidad Chetumal, Chetumal, Quintana Roo, Mexico
- Océanos Vivientes A.C., Mexico City, Mexico
| | - Andre M. Boustany
- Monterey Bay Aquarium, Monterey, CA, USA
- Nicholas School of the Environment, Duke University, Durham, NC, USA
| | - Heather D. Bowlby
- Fisheries and Oceans Canada, Bedford Institute of Oceanography, Dartmouth, NS, Canada
| | - Ilka Branco
- Departamento de Pesca e Aquicultura, Universidade Federal Rural de Pernambuco, Recife, PE, Brazil
| | - Camrin D. Braun
- Biology Department, Woods Hole Oceanographic Institution, Woods Hole, MA, USA
| | | | - Judith Brown
- Ascension Island Government Conservation and Fisheries Department, Georgetown, Ascension Island, UK
| | - Patrick J. Burke
- School of Natural Sciences, Macquarie University, Sydney, NSW, Australia
| | - Paul Butcher
- NSW Department of Primary Industries–Fisheries Research, National Marine Science Centre, Coffs Harbour, NSW, Australia
| | | | - Taylor K. Chapple
- Coastal Oregon Marine Experiment Station, Oregon State University, Newport, OR, USA
| | - Olivier Chateau
- Laboratory of Marine Biology and Ecology, Aquarium des Lagons, Nouméa, New Caledonia
| | | | - Rui Coelho
- Portuguese Institute for the Ocean and Atmosphere, I.P. (IPMA), Olhão, Algarve, Portugal
- Centre of Marine Sciences of the Algarve, Universidade do Algarve, Faro, Algarve, Portugal
| | - Enric Cortes
- Southeast Fisheries Science Center, NOAA Fisheries, Panama City, FL, USA
| | | | - Paul D. Cowley
- South African Institute for Aquatic Biodiversity, Makhanda, South Africa
| | - Donald A. Croll
- Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, Santa Cruz, CA, USA
| | - Juan M. Cuevas
- Wildlife Conservation Society Argentina, Ciudad Autónoma de Buenos Aires, Argentina
- División Zoología de Vertebrados, Museo de La Plata, Universidad Nacional de la Plata, La Plata, Buenos Aires, Argentina
| | - Tobey H. Curtis
- Atlantic Highly Migratory Species Management Division, NOAA Fisheries, Gloucester, MA, USA
| | - Laurent Dagorn
- MARBEC, University of Montpellier, CNRS, Ifremer, IRD, Sète, France
| | - Jonathan J. Dale
- Hopkins Marine Station, Stanford University, Pacific Grove, CA, USA
| | - Ryan Daly
- South African Institute for Aquatic Biodiversity, Makhanda, South Africa
- Oceanographic Research Institute, Durban, South Africa
| | - Heidi Dewar
- Southwest Fisheries Science Center, NOAA Fisheries, La Jolla, CA, USA
| | - Philip D. Doherty
- Environment and Sustainability Institute, University of Exeter, Penryn, Cornwall, UK
- Centre for Ecology and Conservation, College of Life and Environmental Sciences, University of Exeter, Penryn, Cornwall, UK
| | - Andrés Domingo
- Laboratorio de Recursos Pelágicos, Dirección Nacional de Recursos Acuáticos (DINARA), Montevideo, Uruguay
| | | | - Michael Drew
- Southern Shark Ecology Group, College of Science and Engineering, Flinders University, Adelaide, SA, Australia
- SARDI Aquatic Sciences, Adelaide, SA, Australia
| | - Christine L. Dudgeon
- School of Biomedical Sciences, The University of Queensland, St Lucia, QLD, Australia
- School of Science, Technology and Engineering, The University of the Sunshine Coast, Maroochydore, QLD, Australia
| | | | - Riley G. Elliott
- Institute of Marine Science, The University of Auckland, Auckland, New Zealand
| | - Jim R. Ellis
- Centre for Environment, Fisheries and Aquaculture Science, Lowestoft, Suffolk, UK
| | | | - Thomas J. Farrugia
- College of Fisheries and Ocean Sciences, University of Alaska Fairbanks, Fairbanks, AK, USA
- Alaska Ocean Observing System, Anchorage, AK, USA
| | - Luciana C. Ferreira
- Australian Institute of Marine Science, Indian Ocean Marine Research Centre, Crawley, WA, Australia
| | - Francesco Ferretti
- Department of Fish and Wildlife Conservation, Virginia Tech, Blacksburg, VA, USA
| | - John D. Filmalter
- South African Institute for Aquatic Biodiversity, Makhanda, South Africa
| | - Brittany Finucci
- National Institute of Water and Atmospheric Research (NIWA), Wellington, New Zealand
| | | | - Richard Fitzpatrick
- Biopixel Oceans Foundation, Cairns, QLD, Australia
- College of Science and Engineering, James Cook University, Cairns, QLD, Australia
| | - Fabien Forget
- MARBEC, University of Montpellier, CNRS, Ifremer, IRD, Sète, France
| | | | - Malcolm P. Francis
- National Institute of Water and Atmospheric Research (NIWA), Wellington, New Zealand
| | - Bryan R. Franks
- Marine Science Research Institute, Jacksonville University, Jacksonville, FL, USA
| | | | - Felipe Galvan-Magana
- Instituto Politecnico Nacional, Centro Interdisciplinario de Ciencias Marinas, La Paz, Baja California Sur, Mexico
| | - Mirta L. García
- Museo de La Plata, Universidad Nacional de la Plata, La Plata, Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - Troy F. Gaston
- College of Engineering, Science and Environment, University of Newcastle, Ourimbah, NSW, Australia
| | - Bronwyn M. Gillanders
- Southern Seas Ecology Laboratories, School of Biological Sciences, University of Adelaide, Adelaide, SA, Australia
| | | | - Jonathan R. Green
- Galapagos Whale Shark Project, Puerto Ayora, Santa Cruz Island, Galapagos, Ecuador
| | - Sofia Green
- Galapagos Whale Shark Project, Puerto Ayora, Santa Cruz Island, Galapagos, Ecuador
| | - Christopher A. Griffiths
- Centre for Environment, Fisheries and Aquaculture Science, Lowestoft, Suffolk, UK
- Ecology and Evolutionary Biology, School of Biosciences, University of Sheffield, Sheffield, UK
- Swedish University of Agricultural Sciences, Department of Aquatic Resources, Institute of Marine Research, Lysekil, Sweden
| | - Neil Hammerschlag
- Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL, USA
| | - Abdi Hasan
- Yayasan Konservasi Indonesia, Sorong, West Papua, Indonesia
| | - Lucy A. Hawkes
- College of Life and Environmental Science, Hatherly Laboratories, University of Exeter, Exeter, Devon, UK
| | - Fabio Hazin
- Departamento de Pesca e Aquicultura, Universidade Federal Rural de Pernambuco, Recife, PE, Brazil
| | - Matthew Heard
- Southern Shark Ecology Group, College of Science and Engineering, Flinders University, Adelaide, SA, Australia
- SARDI Aquatic Sciences, Adelaide, SA, Australia
- Conservation and Wildlife Branch, Department for Environment and Water, Adelaide, SA, Australia
| | - Alex Hearn
- Migramar, Forest Knolls, CA, USA
- Galapagos Whale Shark Project, Puerto Ayora, Santa Cruz Island, Galapagos, Ecuador
- Galapagos Science Center, Department of Biological Sciences, Universidad San Francisco de Quito, Quito, Ecuador
| | | | | | | | - Kim N. Holland
- Hawaii Institute of Marine Biology, University of Hawaii at Manoa, Kaneohe, HI, USA
| | - Lucy A. Howey
- Johns Hopkins University, Baltimore, MD, USA
- Haiti Ocean Project, Petite Riviere de Nippes, Haiti
| | - Robert E. Hueter
- OCEARCH, Park City, UT, USA
- Mote Marine Laboratory, Sarasota, FL, USA
| | | | - Melanie Hutchinson
- Hawaii Institute of Marine Biology, University of Hawaii at Manoa, Kaneohe, HI, USA
- Joint Institute for Marine and Atmospheric Research, Honolulu, HI, USA
| | - Fabrice R. A. Jaine
- School of Natural Sciences, Macquarie University, Sydney, NSW, Australia
- Sydney Institute of Marine Science, Mosman, NSW, Australia
| | - Salvador J. Jorgensen
- Institute of Marine Sciences, University of California, Santa Cruz, Santa Cruz, CA, USA
| | - Paul E. Kanive
- Department of Ecology, Montana State University, Bozeman, MT, USA
| | - Jessica Labaja
- Large Marine Vertebrates Research Institute Philippines, Jagna, Bohol, Philippines
| | - Fernanda O. Lana
- Departamento de Pesca e Aquicultura, Universidade Federal Rural de Pernambuco, Recife, PE, Brazil
| | - Hugo Lassauce
- The Manta Trust, Catemwood House, Corscombe, Dorset, UK
- ISEA, University of New Caledonia, Nouméa, New Caledonia
- Conservation International New Caledonia, Nouméa, New Caledonia
| | - Rebecca S. Lipscombe
- National Marine Science Centre, Southern Cross University, Coffs Harbour, NSW, Australia
| | | | - Bruno C. L. Macena
- Departamento de Pesca e Aquicultura, Universidade Federal Rural de Pernambuco, Recife, PE, Brazil
- Okeanos Centre, University of the Azores, Horta, Faial, Portugal
| | | | - Jaime D. McAllister
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS, Australia
| | | | | | - Matthew N. McMillan
- Southern Seas Ecology Laboratories, School of Biological Sciences, University of Adelaide, Adelaide, SA, Australia
- Queensland Department of Agriculture and Fisheries, Brisbane, QLD, Australia
| | | | - Sibele A. Mendonça
- Departamento de Pesca e Aquicultura, Universidade Federal Rural de Pernambuco, Recife, PE, Brazil
| | - Carl G. Meyer
- Hawaii Institute of Marine Biology, University of Hawaii at Manoa, Kaneohe, HI, USA
| | - Megan Meyers
- Australian Institute of Marine Science, Indian Ocean Marine Research Centre, Crawley, WA, Australia
| | - John A. Mohan
- School of Marine and Environmental Programs, University of New England, Biddeford, ME, USA
| | - John C. Montgomery
- Institute of Marine Science, The University of Auckland, Auckland, New Zealand
| | - Gonzalo Mucientes
- Instituto de Investigacions Marinas, Consejo Superior de Investigaciones Científicas, Vigo, Galicia, Spain
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Universidade do Porto, Vairao, Portugal
| | | | - Nicole Nasby-Lucas
- Southwest Fisheries Science Center, NOAA Fisheries, La Jolla, CA, USA
- Institute of Marine Sciences, University of California, Santa Cruz, Santa Cruz, CA, USA
| | | | | | - Paulo Oliveira
- Departamento de Pesca e Aquicultura, Universidade Federal Rural de Pernambuco, Recife, PE, Brazil
| | - Yannis P. Papastamtiou
- Institute of the Environment, Department of Biological Science, Florida International University, North Miami, FL, USA
| | | | | | - Nuno Queiroz
- CIBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos, InBIO Laboratório Associado, Universidade do Porto, Vairao, Portugal
- BIOPOLIS Program in Genomics, Biodiversity and Land Planning, Vairao, Portugal
| | - Craig A. Radford
- Institute of Marine Science, The University of Auckland, Auckland, New Zealand
| | - Andy J. Richardson
- Ascension Island Government Conservation and Fisheries Department, Georgetown, Ascension Island, UK
| | - Anthony J. Richardson
- School of Mathematics and Physics, The University of Queensland, St Lucia, QLD, Australia
- CSIRO Oceans and Atmosphere, St Lucia, QLD, Australia
| | - David Righton
- Centre for Environment, Fisheries and Aquaculture Science, Lowestoft, Suffolk, UK
- School of Environmental Sciences, University of East Anglia, Norwich, UK
| | | | - Mark A. Royer
- Hawaii Institute of Marine Biology, University of Hawaii at Manoa, Kaneohe, HI, USA
| | | | | | | | - Michael C. Scholl
- Bimini Biological Field Station Foundation, Bimini, The Bahamas
- IUCN SSC Shark Specialist Group, Gland, Vaud, Switzerland
- Aquarium-Muséum Universitaire de Liège, University of Liège, Liège, Wallonia, Belgium
| | - Andrew C. Seitz
- College of Fisheries and Ocean Sciences, University of Alaska Fairbanks, Fairbanks, AK, USA
| | - Jayson M. Semmens
- Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS, Australia
| | - Edy Setyawan
- The Manta Trust, Catemwood House, Corscombe, Dorset, UK
- Institute of Marine Science, The University of Auckland, Auckland, New Zealand
| | - Brendan D. Shea
- Department of Fish and Wildlife Conservation, Virginia Tech, Blacksburg, VA, USA
- Beneath the Waves, Herndon, VA, USA
| | - Rafid A. Shidqi
- Coastal Science and Policy Program, University of California, Santa Cruz, Santa Cruz, CA, USA
- Thresher Shark Project Indonesia, Alor Island, East Nusa Tenggara, Indonesia
| | - George L. Shillinger
- Hopkins Marine Station, Stanford University, Pacific Grove, CA, USA
- Migramar, Forest Knolls, CA, USA
- Upwell, Monterey, CA, USA
| | | | - Mahmood S. Shivji
- Guy Harvey Research Institute, Nova Southeastern University, Fort Lauderdale, FL, USA
| | - Abraham B. Sianipar
- Centre for Sustainable Aquatic Ecosystems, Harry Butler Institute, Murdoch University, Murdoch, WA, Australia
| | - Joana F. Silva
- Centre for Environment, Fisheries and Aquaculture Science, Lowestoft, Suffolk, UK
| | - David W. Sims
- The Marine Biological Association, Plymouth, UK
- Ocean and Earth Science, National Oceanography Centre Southampton, University of Southampton, Southampton, UK
| | | | - Lara L. Sousa
- Wildlife Conservation Research Unit, Recanati-Kaplan Centre, Department of Zoology, Oxford University, Oxford, UK
| | | | - Julia L. Y. Spaet
- Evolutionary Ecology Group, Department of Zoology, University of Cambridge, Cambridge, Cambridgeshire, UK
| | | | - Guy Stevens
- The Manta Trust, Catemwood House, Corscombe, Dorset, UK
| | - Joshua D. Stewart
- The Manta Trust, Catemwood House, Corscombe, Dorset, UK
- Marine Mammal Institute, Department of Fisheries, Wildlife, and Conservation Sciences, Hatfield Marine Science Center, Oregon State University, Newport, OR, USA
| | - James A. Sulikowski
- New College of Interdisciplinary Arts and Sciences, Arizona State University, Phoenix, AZ, USA
| | | | - Simon R. Thorrold
- Biology Department, Woods Hole Oceanographic Institution, Woods Hole, MA, USA
| | - Michele Thums
- Australian Institute of Marine Science, Indian Ocean Marine Research Centre, Crawley, WA, Australia
| | - David Tickler
- Marine Futures Lab, School of Biological Science, The University of Western Australia, Crawley, WA, Australia
| | | | - Kathy A. Townsend
- School of Science, Technology and Engineering, The University of the Sunshine Coast, Hervey Bay, QLD, Australia
| | - Paulo Travassos
- Departamento de Pesca e Aquicultura, Universidade Federal Rural de Pernambuco, Recife, PE, Brazil
| | - John P. Tyminski
- OCEARCH, Park City, UT, USA
- Mote Marine Laboratory, Sarasota, FL, USA
| | - Jeremy J. Vaudo
- Guy Harvey Research Institute, Nova Southeastern University, Fort Lauderdale, FL, USA
| | - Drausio Veras
- Unidade Acadêmica de Serra Talhada, Universidade Federal Rural de Pernambuco, Serra Talhada, PE, Brazil
| | | | - Sam B. Weber
- Ascension Island Government Conservation and Fisheries Department, Georgetown, Ascension Island, UK
- Centre for Ecology and Conservation, College of Life and Environmental Sciences, University of Exeter, Penryn, Cornwall, UK
| | - R.J. David Wells
- Department of Marine Biology, Texas A&M University at Galveston, Galveston, TX, USA
| | - Kevin C. Weng
- Fisheries Science, Virginia Institute of Marine Science, College of William and Mary, Gloucester Point, VA, USA
| | - Bradley M. Wetherbee
- Guy Harvey Research Institute, Nova Southeastern University, Fort Lauderdale, FL, USA
- University of Rhode Island, Kingston, RI, USA
| | - Jane E. Williamson
- School of Natural Sciences, Macquarie University, Sydney, NSW, Australia
| | - Matthew J. Witt
- Environment and Sustainability Institute, University of Exeter, Penryn, Cornwall, UK
- College of Life and Environmental Science, Hatherly Laboratories, University of Exeter, Exeter, Devon, UK
| | - Serena Wright
- Centre for Environment, Fisheries and Aquaculture Science, Lowestoft, Suffolk, UK
| | - Kelly Zilliacus
- Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, Santa Cruz, CA, USA
| | - Barbara A. Block
- Hopkins Marine Station, Stanford University, Pacific Grove, CA, USA
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19
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Hamilton CD, Lydersen C, Aars J, Acquarone M, Atwood T, Baylis A, Biuw M, Boltunov AN, Born EW, Boveng P, Brown TM, Cameron M, Citta J, Crawford J, Dietz R, Elias J, Ferguson SH, Fisk A, Folkow LP, Frost KJ, Glazov DM, Granquist SM, Gryba R, Harwood L, Haug T, Heide‐Jørgensen MP, Hussey NE, Kalinek J, Laidre KL, Litovka DI, London JM, Loseto LL, MacPhee S, Marcoux M, Matthews CJD, Nilssen K, Nordøy ES, O’Corry‐Crowe G, Øien N, Olsen MT, Quakenbush L, Rosing‐Asvid A, Semenova V, Shelden KEW, Shpak OV, Stenson G, Storrie L, Sveegaard S, Teilmann J, Ugarte F, Von Duyke AL, Watt C, Wiig Ø, Wilson RR, Yurkowski DJ, Kovacs KM. Marine mammal hotspots across the circumpolar Arctic. DIVERS DISTRIB 2022. [DOI: 10.1111/ddi.13543] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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20
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Thoya P, Kadagi NI, Wambiji N, Williams SM, Pepperell J, Möllmann C, Schiele KS, Maina J. Environmental controls of billfish species in the Indian Ocean and implications for their management and conservation. DIVERS DISTRIB 2022. [DOI: 10.1111/ddi.13525] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- Pascal Thoya
- School of Natural Sciences Macquarie University Sydney New South Wales Australia
- Kenya Marine and Fisheries Research Institute Mombasa Kenya
- Institute for Marine Ecosystem and Fisheries Science Center for Earth System Research and Sustainability (CEN) University of Hamburg Hamburg Germany
- Leibniz Institute for Baltic Sea Research Warnemuende (IOW) Warnemuende Germany
| | | | - Nina Wambiji
- Kenya Marine and Fisheries Research Institute Mombasa Kenya
| | - Samuel Mackey Williams
- The Department of Agriculture and Fisheries Queensland Brisbane Australia
- School of Biological Sciences The University of Queensland St Lucia Queensland Australia
| | - Julian Pepperell
- Pepperell Research and Consulting Pty Ltd, Noosaville DC Queensland Australia
| | - Christian Möllmann
- Institute for Marine Ecosystem and Fisheries Science Center for Earth System Research and Sustainability (CEN) University of Hamburg Hamburg Germany
| | | | - Joseph Maina
- School of Natural Sciences Macquarie University Sydney New South Wales Australia
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21
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Cordero-Maldonado C, Espinoza P. Cadmium and lead levels in muscle tissue of blue shark (Prionace glauca) in the Southeastern Pacific Waters. MARINE POLLUTION BULLETIN 2022; 177:113523. [PMID: 35290836 DOI: 10.1016/j.marpolbul.2022.113523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 02/21/2022] [Accepted: 02/27/2022] [Indexed: 06/14/2023]
Abstract
Prionace glauca is a top predator, prone to bioaccumulate trace elements, representing the most captured elasmobranch species for human consumption in Peru. Concentrations of cadmium and lead in the edible muscle tissue of the blue shark captured in the south Peruvian coastal waters and offshore north-central Chile were determined. The Cd and Pb levels varied between 0.004 and 0.014 and 0.004 and 0.03 mg kg-1, respectively. We found direct correlation of Cd concentration with the total length, nevertheless there was no clear relationship regarding sex, seasons, and capture areas. Both metals were below the safety limits for human consumption. The target hazard quotient (THQ) values suggest that its consumption does not represent a risk to the human health. In Peru, this is only the second paper that reports Cd and Pb in sharks. We recommend increasing the sampling by including larger sharks and in other regions of the Peruvian coastline.
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Affiliation(s)
- Cristel Cordero-Maldonado
- Carrera de Biología Marina, Facultad de Ciencias Veterinarias y Biológicas, Universidad Científica del Sur, Lima, Peru.
| | - Pepe Espinoza
- Carrera de Biología Marina, Facultad de Ciencias Veterinarias y Biológicas, Universidad Científica del Sur, Lima, Peru; Instituto del Mar del Perú, Esquina Gamarra con General Valle, Chucuito, Callao, Peru
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22
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Hammerschlag N, McDonnell LH, Rider MJ, Street GM, Hazen EL, Natanson LJ, McCandless CT, Boudreau MR, Gallagher AJ, Pinsky ML, Kirtman B. Ocean warming alters the distributional range, migratory timing, and spatial protections of an apex predator, the tiger shark (Galeocerdo cuvier). GLOBAL CHANGE BIOLOGY 2022; 28:1990-2005. [PMID: 35023247 PMCID: PMC9305416 DOI: 10.1111/gcb.16045] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 09/14/2021] [Accepted: 12/12/2021] [Indexed: 05/07/2023]
Abstract
Given climate change threats to ecosystems, it is critical to understand the responses of species to warming. This is especially important in the case of apex predators since they exhibit relatively high extinction risk, and changes to their distribution could impact predator-prey interactions that can initiate trophic cascades. Here we used a combined analysis of animal tracking, remotely sensed environmental data, habitat modeling, and capture data to evaluate the effects of climate variability and change on the distributional range and migratory phenology of an ectothermic apex predator, the tiger shark (Galeocerdo cuvier). Tiger sharks satellite tracked in the western North Atlantic between 2010 and 2019 revealed significant annual variability in the geographic extent and timing of their migrations to northern latitudes from ocean warming. Specifically, tiger shark migrations have extended farther poleward and arrival times to northern latitudes have occurred earlier in the year during periods with anomalously high sea-surface temperatures. A complementary analysis of nearly 40 years of tiger shark captures in the region revealed decadal-scale changes in the distribution and timing of shark captures in parallel with long-term ocean warming. Specifically, areas of highest catch densities have progressively increased poleward and catches have occurred earlier in the year off the North American shelf. During periods of anomalously high sea-surface temperatures, movements of tracked sharks shifted beyond spatial management zones that had been affording them protection from commercial fishing and bycatch. Taken together, these study results have implications for fisheries management, human-wildlife conflict, and ecosystem functioning.
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Affiliation(s)
- Neil Hammerschlag
- Rosenstiel School of Marine and Atmospheric ScienceUniversity of MiamiMiamiFloridaUSA
- Leonard & Jayne Abess Center for Ecosystem Science and PolicyUniversity of MiamiCoral GablesFloridaUSA
| | - Laura H. McDonnell
- Leonard & Jayne Abess Center for Ecosystem Science and PolicyUniversity of MiamiCoral GablesFloridaUSA
| | - Mitchell J. Rider
- Rosenstiel School of Marine and Atmospheric ScienceUniversity of MiamiMiamiFloridaUSA
| | - Garrett M. Street
- Department of Wildlife, Fisheries, and AquacultureMississippi State UniversityStarkvilleMississippiUSA
- Quantitative Ecology and Spatial Technologies LaboratoryMississippi State UniversityStarkvilleMississippiUSA
| | - Elliott L. Hazen
- Environmental Research DivisionNOAA Southwest Fisheries Science CenterMontereyCaliforniaUSA
| | - Lisa J. Natanson
- National Marine Fisheries ServiceNarragansett LaboratoryNOAA Northeast Fisheries Science CenterNarragansettRhode IslandUSA
| | - Camilla T. McCandless
- National Marine Fisheries ServiceNarragansett LaboratoryNOAA Northeast Fisheries Science CenterNarragansettRhode IslandUSA
| | - Melanie R. Boudreau
- Department of Wildlife, Fisheries, and AquacultureMississippi State UniversityStarkvilleMississippiUSA
- Quantitative Ecology and Spatial Technologies LaboratoryMississippi State UniversityStarkvilleMississippiUSA
| | | | - Malin L. Pinsky
- Department of Ecology, Evolution, and Natural ResourcesRutgers, The State University of New JerseyNew BrunswickNew JerseyUSA
| | - Ben Kirtman
- Rosenstiel School of Marine and Atmospheric ScienceUniversity of MiamiMiamiFloridaUSA
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23
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Cloyed CS, Balmer BC, Schwacke LH, Wells RS, Berens McCabe EJ, Barleycorn AA, Allen JB, Rowles TK, Smith CR, Takeshita R, Townsend FI, Tumlin MC, Zolman ES, Carmichael RH. Interaction between dietary and habitat niche breadth influences cetacean vulnerability to environmental disturbance. Ecosphere 2021. [DOI: 10.1002/ecs2.3759] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- Carl S. Cloyed
- Dauphin Island Sea Lab 101 Bienville Boulevard Dauphin Island Alabama 36608 USA
- Department of Marine Sciences University of South Alabama Mobile Alabama 36688 USA
| | - Brian C. Balmer
- National Marine Mammal Foundation 3419 Maybank Highway Johns Island South Carolina 29487 USA
| | - Lori H. Schwacke
- National Marine Mammal Foundation 3419 Maybank Highway Johns Island South Carolina 29487 USA
| | - Randall S. Wells
- Chicago Zoological Society’s Sarasota Dolphin Research Program, c/o Mote Marine Laboratory 1600 Ken Thompson Parkway Sarasota Florida 34236 USA
| | - Elizabeth J. Berens McCabe
- Chicago Zoological Society’s Sarasota Dolphin Research Program, c/o Mote Marine Laboratory 1600 Ken Thompson Parkway Sarasota Florida 34236 USA
| | - Aaron A. Barleycorn
- Chicago Zoological Society’s Sarasota Dolphin Research Program, c/o Mote Marine Laboratory 1600 Ken Thompson Parkway Sarasota Florida 34236 USA
| | - Jason B. Allen
- Chicago Zoological Society’s Sarasota Dolphin Research Program, c/o Mote Marine Laboratory 1600 Ken Thompson Parkway Sarasota Florida 34236 USA
| | - Teresa K. Rowles
- Office of Protected Resources National Marine Fisheries Service NOAA 1315 East West Highway Silver Spring Maryland 20910 USA
| | - Cynthia R. Smith
- National Marine Mammal Foundation 2240 Shelter Island Drive #200 San Diego California 92106 USA
| | - Ryan Takeshita
- National Marine Mammal Foundation 3419 Maybank Highway Johns Island South Carolina 29487 USA
| | - Forrest I. Townsend
- Bayside Hospital for Animals 251 Racetrack Road NE Fort Walton Beach Florida 32547 USA
| | - Mandy C. Tumlin
- Louisiana Department of Wildlife and Fisheries 2000 Quail Drive Baton Rouge Louisiana 70808 USA
| | - Eric S. Zolman
- National Marine Mammal Foundation 3419 Maybank Highway Johns Island South Carolina 29487 USA
| | - Ruth H. Carmichael
- Dauphin Island Sea Lab 101 Bienville Boulevard Dauphin Island Alabama 36608 USA
- Department of Marine Sciences University of South Alabama Mobile Alabama 36688 USA
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24
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Davies TE, Carneiro AP, Tarzia M, Wakefield E, Hennicke JC, Frederiksen M, Hansen ES, Campos B, Hazin C, Lascelles B, Anker‐Nilssen T, Arnardóttir H, Barrett RT, Biscoito M, Bollache L, Boulinier T, Catry P, Ceia FR, Chastel O, Christensen‐Dalsgaard S, Cruz‐Flores M, Danielsen J, Daunt F, Dunn E, Egevang C, Fagundes AI, Fayet AL, Fort J, Furness RW, Gilg O, González‐Solís J, Granadeiro JP, Grémillet D, Guilford T, Hanssen SA, Harris MP, Hedd A, Huffeldt NP, Jessopp M, Kolbeinsson Y, Krietsch J, Lang J, Linnebjerg JF, Lorentsen S, Madeiros J, Magnusdottir E, Mallory ML, McFarlane Tranquilla L, Merkel FR, Militão T, Moe B, Montevecchi WA, Morera‐Pujol V, Mosbech A, Neves V, Newell MA, Olsen B, Paiva VH, Peter H, Petersen A, Phillips RA, Ramírez I, Ramos JA, Ramos R, Ronconi RA, Ryan PG, Schmidt NM, Sigurðsson IA, Sittler B, Steen H, Stenhouse IJ, Strøm H, Systad GHR, Thompson P, Thórarinsson TL, Bemmelen RS, Wanless S, Zino F, Dias MP. Multispecies tracking reveals a major seabird hotspot in the North Atlantic. Conserv Lett 2021. [DOI: 10.1111/conl.12824] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Affiliation(s)
| | | | | | - Ewan Wakefield
- Institute of Biodiversity Animal Health and Comparative Medicine University of Glasgow Glasgow U.K
| | | | | | | | - Bruna Campos
- EuroNatur Foundation Radolfzell Germany
- Stichting BirdLife Europe Brussels Belgium
| | | | | | | | | | | | | | - Loïc Bollache
- UMR 6249 Chrono‐environnement Université de Bourgogne Franche‐Comté Besançon France
- Groupe de Recherche en Ecologie Arctique Francheville France
| | - Thierry Boulinier
- Centre d'Ecologie Fonctionnelle et Evolutive CNRS ‐ Université de Montpellier ‐ Université Paul‐Valéry Montpellier – EPHE Montpellier France
| | - Paulo Catry
- MARE ‐ Marine and Environmental Sciences Centre ISPA ‐ Instituto Universitário Lisbon Portugal
| | - Filipe R. Ceia
- University of Coimbra, MARE‐Marine and Environmental Sciences Centre, Dep. Life Sciences Coimbra Portugal
| | - Olivier Chastel
- Centre d'Etudes Biologiques de Chizé (CEBC) UMR 7372 CNRS‐La Rochelle Université Villiers‐en‐bois France
| | | | - Marta Cruz‐Flores
- Institut de Recerca de la Biodiversitat (IRBio) and Dept. de Biologia Evolutiva, Ecologia i Ciències Ambientals Universitat de Barcelona Barcelona Spain
| | | | | | | | | | | | | | - Jérôme Fort
- Littoral, Environnement et Sociétés (LIENSs) UMR 7266 CNRS‐La Rochelle Université La Rochelle France
| | - Robert W. Furness
- Institute of Biodiversity Animal Health and Comparative Medicine University of Glasgow Glasgow U.K
| | - Olivier Gilg
- UMR 6249 Chrono‐environnement Université de Bourgogne Franche‐Comté Besançon France
- Groupe de Recherche en Ecologie Arctique Francheville France
| | - Jacob González‐Solís
- Institut de Recerca de la Biodiversitat (IRBio) and Dept. de Biologia Evolutiva, Ecologia i Ciències Ambientals Universitat de Barcelona Barcelona Spain
| | | | - David Grémillet
- Centre d'Etudes Biologiques de Chizé (CEBC) UMR 7372 CNRS‐La Rochelle Université Villiers‐en‐bois France
- FitzPatrick Institute of African Ornithology Rondebosch South Africa
| | | | | | | | - April Hedd
- Wildlife Research Division Environment and Climate Change Mount Pearl NL Canada
| | - Nicholas Per Huffeldt
- Department of Bioscience Aarhus University Roskilde Denmark
- Greenland Institute of Natural Resources Nuuk Greenland
| | - Mark Jessopp
- School of Biological, Earth & Environmental Sciences, Environmental Research Institute University College Cork Ireland
| | | | - Johannes Krietsch
- Friedrich Schiller University, Institute of Ecology and Evolution Jena Germany
- Max Planck Institute for Ornithology Department of Behavioural Ecology and Evolutionary Genetics Seewiesen Germany
| | - Johannes Lang
- Groupe de Recherche en Ecologie Arctique Francheville France
- Justus‐Liebig‐University Giessen, Clinic for Birds, Reptiles, Amphibians and Fish Working Group for Wildlife Research Giessen Germany
| | | | | | - Jeremy Madeiros
- Department of Environment and Natural Resources, Government of Bermuda Paget Bermuda
| | | | | | | | - Flemming R. Merkel
- Department of Bioscience Aarhus University Roskilde Denmark
- Greenland Institute of Natural Resources Nuuk Greenland
| | - Teresa Militão
- Institut de Recerca de la Biodiversitat (IRBio) and Dept. de Biologia Evolutiva, Ecologia i Ciències Ambientals Universitat de Barcelona Barcelona Spain
| | - Børge Moe
- Norwegian Institute for Nature Research Trondheim Norway
| | | | - Virginia Morera‐Pujol
- Institut de Recerca de la Biodiversitat (IRBio) and Dept. de Biologia Evolutiva, Ecologia i Ciències Ambientals Universitat de Barcelona Barcelona Spain
| | - Anders Mosbech
- Department of Bioscience Aarhus University Roskilde Denmark
| | - Verónica Neves
- MARE – Marine and Environmental Sciences Centre, IMAR & Okeanos Horta Portugal
| | | | - Bergur Olsen
- Faroe Marine Research Institute Tórshavn Faroe Islands
| | - Vitor H. Paiva
- University of Coimbra, MARE‐Marine and Environmental Sciences Centre, Dep. Life Sciences Coimbra Portugal
| | - Hans‐Ulrich Peter
- Friedrich Schiller University, Institute of Ecology and Evolution Jena Germany
| | | | | | | | - Jaime A. Ramos
- University of Coimbra, MARE‐Marine and Environmental Sciences Centre, Dep. Life Sciences Coimbra Portugal
| | - Raül Ramos
- Institut de Recerca de la Biodiversitat (IRBio) and Dept. de Biologia Evolutiva, Ecologia i Ciències Ambientals Universitat de Barcelona Barcelona Spain
| | - Robert A. Ronconi
- Canadian Wildlife Service, Environment and Climate Change Canada Dartmouth NS Canada
| | - Peter G. Ryan
- FitzPatrick Institute of African Ornithology Rondebosch South Africa
| | | | | | - Benoît Sittler
- Groupe de Recherche en Ecologie Arctique Francheville France
- University of Freiburg Freiburg Germany
| | | | | | | | | | - Paul Thompson
- Lighthouse Field Station, School of Biological Sciences University of Aberdeen Cromarty U.K
| | - Thorkell L. Thórarinsson
- Northeast Iceland Nature Research Centre Húsavík Iceland
- Icelandic Institute of Natural History Garðabær Iceland
| | | | | | | | - Maria P. Dias
- BirdLife International Cambridge U.K
- MARE ‐ Marine and Environmental Sciences Centre ISPA ‐ Instituto Universitário Lisbon Portugal
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25
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Raoult V, Grant MI, Barbosa Martins AP, Feitosa LM, Braccini M, Cardeñosa D, Carlson J, Chin A, Curtis T, Carvalho Costa LF, Rodrigues Filho LF, Giarrizzo T, Nunes JLS, Sales JBL, Williamson JE, Simpfendorfer CA. Assigning shark fin origin using species distribution models needs a reality check. Biol Lett 2021; 17:20200907. [PMID: 34256580 PMCID: PMC8278065 DOI: 10.1098/rsbl.2020.0907] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- Vincent Raoult
- School of Environmental and Life Sciences, University of Newcastle, Ourimbah, New South Wales 2258, Australia
| | - Michael I Grant
- Centre for Sustainable Tropical Fisheries and Aquaculture and College of Science and Engineering, James Cook University, 1 James Cook Drive, Townsville, Queensland 4811, Australia
| | | | - Leonardo Manir Feitosa
- Bren School of Environmental Science and Management, University of California, Santa Barbara, CA 931117, USA
| | - Matias Braccini
- Western Australian Fisheries and Marine Research Laboratories, Department of Primary Industries and Regional Development, Government of Western Australia, PO Box 20, North Beach, Western Australia 6920, Australia
| | - Diego Cardeñosa
- Department of Biological Sciences, Florida International University, 3000 NE 151st Street, North Miami, FL 33181, USA
| | - John Carlson
- NOAA Fisheries Service, Southeast Fisheries Science Center, Panama City, FL 32408, USA
| | - Andrew Chin
- Centre for Sustainable Tropical Fisheries and Aquaculture and College of Science and Engineering, James Cook University, 1 James Cook Drive, Townsville, Queensland 4811, Australia
| | - Tobey Curtis
- Atlantic Highly Migratory Species Management Division, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Gloucester, MA 01930, USA
| | - Luís Fernando Carvalho Costa
- Departamento de Biologia, Universidade Federal do Maranhão, Avenida dos Portugueses 1966, CEP 65080-805 São Luís, MA, Brazil
| | - Luís Fernando Rodrigues Filho
- Universidade Federal Rural da Amazônia (UFRA), Campus Universitário de Capanema, Rua João Pessoa 121, CEP 68700-030 Capanema, PA, Brazil
| | - Tommaso Giarrizzo
- Núcleo de Ecologia Aquática e Pesca da Amazônia, Universidade Federal do Pará, Avenida Perimetral 2651, Terra Firme, CEP 66040-170 Belém, PA, Brazil
| | - Jorge Luiz S Nunes
- Departamento de Oceanografia e Limnologia, Universidade Federal do Maranhão, Avenida dos Portugueses 1966, CEP 65080-805 São Luís, MA, Brazil
| | - João Bráullio L Sales
- Grupo de Investigação Biologica Integrada (GIBI), Universidade Federal do Pará, Avenida Perimetral da Ciência, Km01, PCT-Guamá, Terreno 11, CEP 66075-750 Belém, PA, Brazil
| | - Jane E Williamson
- Department of Biological Sciences, Macquarie University, Sydney, New South Wales 2109, Australia
| | - Colin A Simpfendorfer
- Centre for Sustainable Tropical Fisheries and Aquaculture and College of Science and Engineering, James Cook University, 1 James Cook Drive, Townsville, Queensland 4811, Australia
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26
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Collins C, Nuno A, Benaragama A, Broderick A, Wijesundara I, Wijetunge D, Letessier TB. Ocean‐scale footprint of a highly mobile fishing fleet: Social‐ecological drivers of fleet behaviour and evidence of illegal fishing. PEOPLE AND NATURE 2021. [DOI: 10.1002/pan3.10213] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Affiliation(s)
- Claire Collins
- Centre for Ecology and Conservation College of Life and Environmental Sciences University of Exeter Penryn UK
- Institute of Zoology Zoological Society of London London UK
| | - Ana Nuno
- Centre for Ecology and Conservation College of Life and Environmental Sciences University of Exeter Penryn UK
- Interdisciplinary Centre of Social Sciences (CICS.NOVA) School of Social Sciences and Humanities (NOVA FCSH) NOVA University Lisbon Lisboa Portugal
| | | | - Annette Broderick
- Centre for Ecology and Conservation College of Life and Environmental Sciences University of Exeter Penryn UK
| | | | | | - Tom B. Letessier
- Institute of Zoology Zoological Society of London London UK
- The UWA Oceans Institute University of Western Australia (M092) Crawley WA Australia
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27
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Pickens BA, Carroll R, Schirripa MJ, Forrestal F, Friedland KD, Taylor JC. A systematic review of spatial habitat associations and modeling of marine fish distribution: A guide to predictors, methods, and knowledge gaps. PLoS One 2021; 16:e0251818. [PMID: 33989361 PMCID: PMC8121303 DOI: 10.1371/journal.pone.0251818] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 05/03/2021] [Indexed: 11/19/2022] Open
Abstract
As species distribution models, and similar techniques, have emerged in marine ecology, a vast array of predictor variables have been created and diverse methodologies have been applied. Marine fish are vital food resources worldwide, yet identifying the most suitable methodology and predictors to characterize spatial habitat associations, and the subsequent distributions, often remains ambiguous. Our objectives were to identify knowledge gaps in fish guilds, identify research themes, and to determine how data sources, statistics, and predictor variables differ among fish guilds. Data were obtained from an international literature search of peer-reviewed articles (2007-2018; n = 225) and research themes were determined based on abstracts. We tested for differences in data sources and modeling techniques using multinomial regressions and used a linear discriminant analysis to distinguish differences in predictors among fish guilds. Our results show predictive studies increased over time, but studies of forage fish, sharks, coral reef fish, and other fish guilds remain sparse. Research themes emphasized habitat suitability and distribution shifts, but also addressed abundance, occurrence, stock assessment, and biomass. Methodologies differed by fish guilds based on data limitations and research theme. The most frequent predictors overall were depth and temperature, but most fish guilds were distinguished by their own set of predictors that focused on their specific life history and ecology. A one-size-fits-all approach is not suitable for predicting marine fish distributions. However, given the paucity of studies for some fish guilds, researchers would benefit from utilizing predictors and methods derived from more commonly studied fish when similar habitat requirements are expected. Overall, the findings provide a guide for determining predictor variables to test and identifies novel opportunities to apply non-spatial knowledge and mechanisms to models.
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Affiliation(s)
- Bradley A. Pickens
- CSS-Inc., Fairfax, Virginia, United States of America
- NOAA National Centers for Coastal Ocean Science, Beaufort, North Carolina, United States of America
- * E-mail:
| | - Rachel Carroll
- Department of Mathematics and Statistics, University of North Carolina Wilmington, Wilmington, North Carolina, United States of America
| | - Michael J. Schirripa
- Sustainable Fisheries Division, NOAA Fisheries SEFSC, Miami, Florida, United States of America
| | - Francesca Forrestal
- Sustainable Fisheries Division, NOAA Fisheries SEFSC, Miami, Florida, United States of America
| | - Kevin D. Friedland
- National Marine Fisheries Service, Narragansett, Rhode Island, United States of America
| | - J. Christopher Taylor
- NOAA National Centers for Coastal Ocean Science, Beaufort, North Carolina, United States of America
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28
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Andrzejaczek S, Vély M, Jouannet D, Rowat D, Fossette S. Regional movements of satellite-tagged whale sharks Rhincodon typus in the Gulf of Aden. Ecol Evol 2021; 11:4920-4934. [PMID: 33976859 PMCID: PMC8093710 DOI: 10.1002/ece3.7400] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 02/05/2021] [Accepted: 02/09/2021] [Indexed: 11/06/2022] Open
Abstract
To gain insight into whale shark (Rhincodon typus) movement patterns in the Western Indian Ocean, we deployed eight pop-up satellite tags at an aggregation site in the Arta Bay region of the Gulf of Tadjoura, Djibouti in the winter months of 2012, 2016, and 2017. Tags revealed movements ranging from local-scale around the Djibouti aggregation site, regional movements along the coastline of Somaliland, movements north into the Red Sea, and a large-scale (>1,000 km) movement to the east coast of Somalia, outside of the Gulf of Aden. Vertical movement data revealed high occupation of the top ten meters of the water column, diel vertical movement patterns, and deep diving behavior. Long-distance movements recorded both here and in previous studies suggest that connectivity between the whale sharks tagged at the Djibouti aggregation and other documented aggregations in the region are likely within annual timeframes. In addition, wide-ranging movements through multiple nations, as well as the high use of surface waters recorded, likely exposes whale sharks in this region to several anthropogenic threats, including targeted and bycatch fisheries and ship-strikes. Area-based management approaches focusing on seasonal hotspots offer a way forward in the conservation of whale sharks in the Western Indian Ocean.
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Affiliation(s)
| | | | | | - David Rowat
- Marine Conservation Society SeychellesMaheSeychelles
| | - Sabrina Fossette
- MegapteraParisFrance
- Biodiversity and Conservation ScienceDepartment of Biodiversity, Conservation and AttractionsKensingtonWAAustralia
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29
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Cloyed CS, Balmer BC, Schwacke LH, Takeshita R, Hohn A, Wells RS, Rowles TK, Saliki JT, Smith CR, Tumlin MC, Zolman ES, Fauquier DA, Carmichael RH. Linking morbillivirus exposure to individual habitat use of common bottlenose dolphins (Tursiops truncatus) between geographically different sites. J Anim Ecol 2021; 90:1191-1204. [PMID: 33608907 DOI: 10.1111/1365-2656.13446] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 01/16/2021] [Indexed: 11/30/2022]
Abstract
Dolphin morbillivirus (DMV) is a virulent pathogen that causes high mortality outbreaks in delphinids globally and is spread via contact among individuals. Broadly ranging nearshore and open-ocean delphinids are likely reservoir populations that transmit DMV to estuarine populations. We assessed the seroprevalence of DMV antibodies and determined the habitat use of common bottlenose dolphins, Tursiops truncatus truncatus, from two estuarine sites, Barataria Bay and Mississippi Sound, in the northern Gulf of Mexico. We predicted that risk to DMV exposure in estuarine dolphins is driven by spatial overlap in habitat use with reservoir populations. Serum was collected from live-captured dolphins and tested for DMV antibodies. Habitat use of sampled individuals was determined by analysing satellite-tracked movements and stable isotope values. DMV seroprevalences were high among dolphins at Barataria Bay (37%) and Mississippi Sound (44%), but varied differently within sites. Ranging patterns of Barataria Bay dolphins were categorized into two groups: Interior and Island-associated. DMV seroprevalences were absent in Interior dolphins (0%) but high in Island-associated dolphins (45%). Ranging patterns of Mississippi Sound dolphins were categorized into three groups: Interior, Island-east and Island-west. DMV seroprevalences were detected across Mississippi Sound (Interior: 60%; Island-east: 20%; and Island-west: 43%). At both sites, dolphins in habitats with greater marine influence had enriched δ13 C values, and Barataria Bay dolphins with positive DMV titres had carbon isotope values indicative of marine habitats. Positive titres for DMV antibodies were more common in the lower versus upper parts of Barataria Bay but evenly distributed across Mississippi Sound. A dolphin's risk of exposure to DMV is influenced by how individual ranging patterns interact with environmental geography. Barataria Bay's partially enclosed geography likely limits the nearshore or open-ocean delphinids that carry DMV from interacting with dolphins that use interior, estuarine habitats, decreasing their exposure to DMV. Mississippi Sound's relatively open geography allows for greater spatial overlap and mixing among estuarine, nearshore and/or open-ocean cetaceans. The spread of DMV, and likely other diseases, is affected by the combination of individual movements, habitat use and the environment.
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Affiliation(s)
- Carl S Cloyed
- Dauphin Island Sea Lab, Dauphin Island, AL, USA.,Department of Marine Sciences, University of South Alabama, Mobile, AL, USA
| | | | | | | | - Aleta Hohn
- NOAA, National Marine Fisheries Service, Southeast Fisheries Science Center, Beaufort, NC, USA
| | - Randall S Wells
- Chicago Zoological Society's Sarasota Dolphin Research Program, c/o Mote Marine Laboratory, Sarasota, FL, USA
| | - Teresa K Rowles
- NOAA, National Marine Fisheries Service, Office of Protected Resources, Silver Spring, MD, USA
| | - Jeremiah T Saliki
- Athens Veterinary Diagnostic Laboratory, University of Georgia, Athens, GA, USA
| | | | - Mandy C Tumlin
- Louisiana Department of Wildlife and Fisheries, Baton Rouge, LA, USA
| | - Eric S Zolman
- National Marine Mammal Foundation, San Diego, CA, USA
| | - Deborah A Fauquier
- NOAA, National Marine Fisheries Service, Office of Protected Resources, Silver Spring, MD, USA
| | - Ruth H Carmichael
- Dauphin Island Sea Lab, Dauphin Island, AL, USA.,Department of Marine Sciences, University of South Alabama, Mobile, AL, USA
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30
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Abstract
Over the past decade, drones have become a popular tool for wildlife management and research. Drones have shown significant value for animals that were often difficult or dangerous to study using traditional survey methods. In the past five years drone technology has become commonplace for shark research with their use above, and more recently, below the water helping to minimise knowledge gaps about these cryptic species. Drones have enhanced our understanding of shark behaviour and are critically important tools, not only due to the importance and conservation of the animals in the ecosystem, but to also help minimise dangerous encounters with humans. To provide some guidance for their future use in relation to sharks, this review provides an overview of how drones are currently used with critical context for shark monitoring. We show how drones have been used to fill knowledge gaps around fundamental shark behaviours or movements, social interactions, and predation across multiple species and scenarios. We further detail the advancement in technology across sensors, automation, and artificial intelligence that are improving our abilities in data collection and analysis and opening opportunities for shark-related beach safety. An investigation of the shark-based research potential for underwater drones (ROV/AUV) is also provided. Finally, this review provides baseline observations that have been pioneered for shark research and recommendations for how drones might be used to enhance our knowledge in the future.
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31
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Vedor M, Queiroz N, Mucientes G, Couto A, Costa ID, Santos AD, Vandeperre F, Fontes J, Afonso P, Rosa R, Humphries NE, Sims DW. Climate-driven deoxygenation elevates fishing vulnerability for the ocean's widest ranging shark. eLife 2021; 10:62508. [PMID: 33461659 PMCID: PMC7815312 DOI: 10.7554/elife.62508] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 12/17/2020] [Indexed: 12/24/2022] Open
Abstract
Climate-driven expansions of ocean hypoxic zones are predicted to concentrate pelagic fish in oxygenated surface layers, but how expanding hypoxia and fisheries will interact to affect threatened pelagic sharks remains unknown. Here, analysis of satellite-tracked blue sharks and environmental modelling in the eastern tropical Atlantic oxygen minimum zone (OMZ) shows shark maximum dive depths decreased due to combined effects of decreasing dissolved oxygen (DO) at depth, high sea surface temperatures, and increased surface-layer net primary production. Multiple factors associated with climate-driven deoxygenation contributed to blue shark vertical habitat compression, potentially increasing their vulnerability to surface fisheries. Greater intensity of longline fishing effort occurred above the OMZ compared to adjacent waters. Higher shark catches were associated with strong DO gradients, suggesting potential aggregation along suitable DO gradients contributed to habitat compression and higher fishing-induced mortality. Fisheries controls to counteract deoxygenation effects on shark catches will be needed as oceans continue warming.
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Affiliation(s)
- Marisa Vedor
- CIBIO/InBIO, Universidade do Porto, Campus Agrário de Vairão, Vairão, Portugal.,MARE, Laboratório Marítimo da Guia, Faculdade de Ciências da Universidade de Lisboa, Av. Nossa Senhora do Cabo, Cascais, Portugal
| | - Nuno Queiroz
- CIBIO/InBIO, Universidade do Porto, Campus Agrário de Vairão, Vairão, Portugal.,Marine Biological Association of the United Kingdom, The Laboratory, Citadel Hill, Plymouth, United Kingdom
| | - Gonzalo Mucientes
- CIBIO/InBIO, Universidade do Porto, Campus Agrário de Vairão, Vairão, Portugal.,Instituto de Investigaciones Marinas, Consejo Superior de Investigaciones Científicas (IIM-CSIC), Vigo, Spain
| | - Ana Couto
- CIBIO/InBIO, Universidade do Porto, Campus Agrário de Vairão, Vairão, Portugal
| | - Ivo da Costa
- CIBIO/InBIO, Universidade do Porto, Campus Agrário de Vairão, Vairão, Portugal
| | - António Dos Santos
- CIBIO/InBIO, Universidade do Porto, Campus Agrário de Vairão, Vairão, Portugal
| | - Frederic Vandeperre
- IMAR - Institute of Marine Research, Departamento de Oceanografia e Pescas, Universidade dos Açores, Horta, Portugal.,MARE - Marine and Environmental Sciences Centre, Faculdade de Ciências da Universidade de Lisboa, Lisbon, Portugal.,Okeanos - Departamento de Oceanografia e Pescas, Universidade dos Açores, Horta, Portugal
| | - Jorge Fontes
- IMAR - Institute of Marine Research, Departamento de Oceanografia e Pescas, Universidade dos Açores, Horta, Portugal.,Okeanos - Departamento de Oceanografia e Pescas, Universidade dos Açores, Horta, Portugal
| | - Pedro Afonso
- IMAR - Institute of Marine Research, Departamento de Oceanografia e Pescas, Universidade dos Açores, Horta, Portugal.,Okeanos - Departamento de Oceanografia e Pescas, Universidade dos Açores, Horta, Portugal
| | - Rui Rosa
- MARE, Laboratório Marítimo da Guia, Faculdade de Ciências da Universidade de Lisboa, Av. Nossa Senhora do Cabo, Cascais, Portugal
| | - Nicolas E Humphries
- Marine Biological Association of the United Kingdom, The Laboratory, Citadel Hill, Plymouth, United Kingdom
| | - David W Sims
- Marine Biological Association of the United Kingdom, The Laboratory, Citadel Hill, Plymouth, United Kingdom.,Centre for Biological Sciences, Highfield Campus, University of Southampton, Southampton, United Kingdom.,Ocean and Earth Science, National Oceanography Centre Southampton, Waterfront Campus, University of Southampton, Southampton, United Kingdom
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32
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Jorgensen SJ, Micheli F, White TD, Van Houtan KS, Alfaro-Shigueto J, Andrzejaczek S, Arnoldi NS, Baum JK, Block B, Britten GL, Butner C, Caballero S, Cardeñosa D, Chapple TK, Clarke S, Cortés E, Dulvy NK, Fowler S, Gallagher AJ, Gilman E, Godley BJ, Graham RT, Hammerschlag N, Harry AV, Heithaus M, Hutchinson M, Huveneers C, Lowe CG, Lucifora LO, MacKeracher T, Mangel JC, Barbosa Martins AP, McCauley DJ, McClenachan L, Mull C, Natanson LJ, Pauly D, Pazmiño DA, Pistevos JCA, Queiroz N, Roff G, Shea BD, Simpfendorfer CA, Sims DW, Ward-Paige C, Worm B, Ferretti F. Emergent research and priorities for shark and ray conservation. ENDANGER SPECIES RES 2021. [DOI: 10.3354/esr01169] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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33
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O'Toole M, Queiroz N, Humphries NE, Sims DW, Sequeira AMM. Quantifying effects of tracking data bias on species distribution models. Methods Ecol Evol 2020. [DOI: 10.1111/2041-210x.13507] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Malcolm O'Toole
- UWA Oceans Institute and School of Biological Sciences University of Western Australia Crawley WA Australia
| | - Nuno Queiroz
- CIBIO/InBIO, Centro de Investigação em Biodiversidade e Recursos Genéticos/Research Network in Biodiversity and Evolutionary Biology Campus Agrário de Vairão Universidade do Porto Vairão Portugal
| | - Nicolas E. Humphries
- Marine Biological Association of the United KingdomThe Laboratory, Citadell Hill Plymouth UK
| | - David W. Sims
- Marine Biological Association of the United KingdomThe Laboratory, Citadell Hill Plymouth UK
- Ocean and Earth Science National Oceanography Centre Southampton Waterfront Campus University of Southampton Southampton UK
| | - Ana M. M. Sequeira
- UWA Oceans Institute and School of Biological Sciences University of Western Australia Crawley WA Australia
- Indian Ocean Marine Research Centre The University of Western Australia Crawley WA Australia
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34
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Requena S, Oppel S, Bond AL, Hall J, Cleeland J, Crawford RJM, Davies D, Dilley BJ, Glass T, Makhado A, Ratcliffe N, Reid TA, Ronconi RA, Schofield A, Steinfurth A, Wege M, Bester M, Ryan PG. Marine hotspots of activity inform protection of a threatened community of pelagic species in a large oceanic jurisdiction. Anim Conserv 2020. [DOI: 10.1111/acv.12572] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- S. Requena
- RSPB Centre for Conservation Science Royal Society for the Protection of Birds Sandy UK
| | - S. Oppel
- RSPB Centre for Conservation Science Royal Society for the Protection of Birds Sandy UK
| | - A. L. Bond
- RSPB Centre for Conservation Science Royal Society for the Protection of Birds Sandy UK
- Bird Group Department of Life Sciences The National History Museum Tring UK
| | - J. Hall
- RSPB Centre for Conservation Science Royal Society for the Protection of Birds Sandy UK
| | - J. Cleeland
- RSPB Centre for Conservation Science Royal Society for the Protection of Birds Sandy UK
| | - R. J. M. Crawford
- Department of Environmental Affairs Branch Oceans and Coasts Cape Town South Africa
| | - D. Davies
- FitzPatrick Institute of African Ornithology DST‐NRF Centre of Excellence University of Cape Town Rondebosch South Africa
| | - B. J. Dilley
- FitzPatrick Institute of African Ornithology DST‐NRF Centre of Excellence University of Cape Town Rondebosch South Africa
| | - T. Glass
- Tristan da Cunha Conservation Department Edinburgh of the Seven Seas Tristan da Cunha
| | - A. Makhado
- Department of Environmental Affairs Branch Oceans and Coasts Cape Town South Africa
- FitzPatrick Institute of African Ornithology DST‐NRF Centre of Excellence University of Cape Town Rondebosch South Africa
| | | | - T. A. Reid
- FitzPatrick Institute of African Ornithology DST‐NRF Centre of Excellence University of Cape Town Rondebosch South Africa
| | - R. A. Ronconi
- Department of Biology Dalhousie University Halifax Nova Scotia Canada
- Canadian Wildlife Service Environment and Climate Change Canada Dartmouth Nova Scotia Canada
| | - A. Schofield
- RSPB Centre for Conservation Science Royal Society for the Protection of Birds Sandy UK
| | - A. Steinfurth
- RSPB Centre for Conservation Science Royal Society for the Protection of Birds Sandy UK
| | - M. Wege
- Department of Zoology and Entomology Mammal Research Institute University of Pretoria Pretoria South Africa
| | - M. Bester
- Department of Zoology and Entomology Mammal Research Institute University of Pretoria Pretoria South Africa
| | - P. G. Ryan
- FitzPatrick Institute of African Ornithology DST‐NRF Centre of Excellence University of Cape Town Rondebosch South Africa
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35
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Abstract
The use of drones to study marine animals shows promise for the examination of numerous aspects of their ecology, behaviour, health and movement patterns. However, the responses of some marine phyla to the presence of drones varies broadly, as do the general operational protocols used to study them. Inconsistent methodological approaches could lead to difficulties comparing studies and can call into question the repeatability of research. This review draws on current literature and researchers with a wealth of practical experience to outline the idiosyncrasies of studying various marine taxa with drones. We also outline current best practice for drone operation in marine environments based on the literature and our practical experience in the field. The protocols outlined herein will be of use to researchers interested in incorporating drones as a tool into their research on marine animals and will help form consistent approaches for drone-based studies in the future.
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36
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Armstrong AJ, Armstrong AO, McGregor F, Richardson AJ, Bennett MB, Townsend KA, Hays GC, van Keulen M, Smith J, Dudgeon CL. Satellite Tagging and Photographic Identification Reveal Connectivity Between Two UNESCO World Heritage Areas for Reef Manta Rays. FRONTIERS IN MARINE SCIENCE 2020; 7. [PMID: 0 DOI: 10.3389/fmars.2020.00725] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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37
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Hays GC, Rattray A, Esteban N. Addressing tagging location bias to assess space use by marine animals. J Appl Ecol 2020. [DOI: 10.1111/1365-2664.13720] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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38
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Ajemian MJ, Drymon JM, Hammerschlag N, Wells RJD, Street G, Falterman B, McKinney JA, Driggers WB, Hoffmayer ER, Fischer C, Stunz GW. Movement patterns and habitat use of tiger sharks (Galeocerdo cuvier) across ontogeny in the Gulf of Mexico. PLoS One 2020; 15:e0234868. [PMID: 32667920 PMCID: PMC7363083 DOI: 10.1371/journal.pone.0234868] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 06/03/2020] [Indexed: 11/18/2022] Open
Abstract
The tiger shark (Galeocerdo cuvier) is globally distributed with established coastal and open-ocean movement patterns in many portions of its range. While all life stages of tiger sharks are known to occur in the Gulf of Mexico (GoM), variability in habitat use and movement patterns over ontogeny have never been quantified in this large marine ecosystem. To address this data gap we fitted 56 tiger sharks with Smart Position and Temperature transmitting tags between 2010 and 2018 and examined seasonal and spatial distribution patterns across the GoM. Additionally, we analyzed overlap of core habitats (i.e., 50% kernel density estimates) among individuals relative to large benthic features (oil and gas platforms, natural banks, bathymetric breaks). Our analyses revealed significant ontogenetic and seasonal differences in distribution patterns as well as across-shelf (i.e., regional) and sex-linked variability in movement rates. Presumably sub-adult and adult sharks achieved significantly higher movement rates and used off-shelf deeper habitats at greater proportions than juvenile sharks, particularly during the fall and winter seasons. Further, female maximum rate of movement was higher than males when accounting for size. Additionally, we found evidence of core regions encompassing the National Oceanographic and Atmospheric Administration designated Habitat Areas of Particular Concern (i.e., shelf-edge banks) during cooler months, particularly by females, as well as 2,504 oil and gas platforms. These data provide a baseline for future assessments of environmental impacts, such as climate variability or oil spills, on tiger shark movements and distribution in the region. Future research may benefit from combining alternative tracking tools, such as acoustic telemetry and genetic approaches, which can facilitate long-term assessment of the species’ movement dynamics and better elucidate the ecological significance of the core habitats identified here.
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Affiliation(s)
- Matthew J. Ajemian
- Harbor Branch Oceanographic Institute, Florida Atlantic University, Fort Pierce, Florida, United States of America
- * E-mail:
| | - J. Marcus Drymon
- Coastal Research and Extension Center, Mississippi State University, Biloxi, Mississippi, United States of America
- Mississippi-Alabama Sea Grant, Ocean Springs, Mississippi, United States of America
| | - Neil Hammerschlag
- Rosenstiel School of Marine & Atmospheric Science, University of Miami, Causeway, Miami, Florida, United States of America
- Abess Center for Ecosystem Science & Policy, University of Miami, Miami, Florida, United States of America
| | - R. J. David Wells
- Department of Marine Biology, Texas A&M University at Galveston, Galveston, Texas, United States of America
- Department of Wildlife & Fisheries Sciences, Texas A&M University, College Station, Texas, United States of America
| | - Garrett Street
- Quantitative Ecology & Spatial Technologies Laboratory, Mississippi State University, Starkville, Mississippi State, United States of America
- Department of Wildlife, Fisheries, and Aquaculture, Mississippi State University, Starkville, Mississippi State, United States of America
| | - Brett Falterman
- Louisiana Department of Wildlife and Fisheries, New Orleans, Louisiana, United States of America
| | - Jennifer A. McKinney
- Louisiana Department of Wildlife and Fisheries, New Orleans, Louisiana, United States of America
| | - William B. Driggers
- NOAA Fisheries, Southeast Fisheries Science Center, Mississippi Laboratories, Pascagoula, Mississippi, United States of America
| | - Eric R. Hoffmayer
- NOAA Fisheries, Southeast Fisheries Science Center, Mississippi Laboratories, Pascagoula, Mississippi, United States of America
| | | | - Gregory W. Stunz
- Harte Research Institute for Gulf of Mexico Studies, Texas A&M University-Corpus Christi, Corpus Christi, Texas, United States of America
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Jacoby DMP, Ferretti F, Freeman R, Carlisle AB, Chapple TK, Curnick DJ, Dale JJ, Schallert RJ, Tickler D, Block BA. Shark movement strategies influence poaching risk and can guide enforcement decisions in a large, remote marine protected area. J Appl Ecol 2020. [DOI: 10.1111/1365-2664.13654] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
| | - Francesco Ferretti
- Department of Fish and Wildlife Conservation Virginia Tech Blacksburg VA USA
- Hopkins Marine Station Stanford University Pacific Grove CA USA
| | - Robin Freeman
- Institute of Zoology Zoological Society of London London UK
| | - Aaron B. Carlisle
- Hopkins Marine Station Stanford University Pacific Grove CA USA
- School of Marine Science and Policy University of Delaware Lewes DE USA
| | - Taylor K. Chapple
- Hopkins Marine Station Stanford University Pacific Grove CA USA
- Coastal Oregon Marine Experiment Station Department of Fisheries and Wildlife Hatfield Marine Science Center Oregon State University Newport OR USA
| | | | | | | | - David Tickler
- Hopkins Marine Station Stanford University Pacific Grove CA USA
- The UWA Oceans InstituteUniversity of Western Australia Crawley WA Australia
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40
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Development Trends and Frontiers of Ocean Big Data Research Based on CiteSpace. WATER 2020. [DOI: 10.3390/w12061560] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Modern socio-economic development and climate prediction depend greatly on the application of ocean big data. With the accelerated development of ocean observation methods and the continuous improvement of the big data science, the challenges of multiple data sources and data diversity have emerged in the ocean field. As a result, the current data magnitude has reached the terabyte scale. Currently, the traditional theoretical foundation and technical methods have their inherent limitations and demerits that cannot satisfied the temporal and spatial attributes of the current ocean big data. Numerous scholars and countries were involved in ocean big data research. To explore the focus and current status, and determine the topics of research on bursts and acquisition of trend related to ocean big data, 400 articles between 1990 and 2019 were collected from the “Web of Science.” Combined with visualization software CiteSpace, bibliometrics method and literature combing technology, the pivotal literature related to ocean big data, including significant level countries, institutions, authors, journals and keywords were recognized. A synthetical analysis has revealed research hot spots and research frontiers. The purpose of this study is to provide researchers and practitioners in the field of ocean big data with the main research domains and research hotspots, and orientation for further research.
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42
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Powering Ocean Giants: The Energetics of Shark and Ray Megafauna. Trends Ecol Evol 2019; 34:1009-1021. [DOI: 10.1016/j.tree.2019.07.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 06/26/2019] [Accepted: 07/01/2019] [Indexed: 12/26/2022]
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43
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Dunn DC, Harrison AL, Curtice C, DeLand S, Donnelly B, Fujioka E, Heywood E, Kot CY, Poulin S, Whitten M, Åkesson S, Alberini A, Appeltans W, Arcos JM, Bailey H, Ballance LT, Block B, Blondin H, Boustany AM, Brenner J, Catry P, Cejudo D, Cleary J, Corkeron P, Costa DP, Coyne M, Crespo GO, Davies TE, Dias MP, Douvere F, Ferretti F, Formia A, Freestone D, Friedlaender AS, Frisch-Nwakanma H, Froján CB, Gjerde KM, Glowka L, Godley BJ, Gonzalez-Solis J, Granadeiro JP, Gunn V, Hashimoto Y, Hawkes LM, Hays GC, Hazin C, Jimenez J, Johnson DE, Luschi P, Maxwell SM, McClellan C, Modest M, Notarbartolo di Sciara G, Palacio AH, Palacios DM, Pauly A, Rayner M, Rees AF, Salazar ER, Secor D, Sequeira AMM, Spalding M, Spina F, Van Parijs S, Wallace B, Varo-Cruz N, Virtue M, Weimerskirch H, Wilson L, Woodward B, Halpin PN. The importance of migratory connectivity for global ocean policy. Proc Biol Sci 2019; 286:20191472. [PMID: 31551061 PMCID: PMC6784718 DOI: 10.1098/rspb.2019.1472] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The distributions of migratory species in the ocean span local, national and international jurisdictions. Across these ecologically interconnected regions, migratory marine species interact with anthropogenic stressors throughout their lives. Migratory connectivity, the geographical linking of individuals and populations throughout their migratory cycles, influences how spatial and temporal dynamics of stressors affect migratory animals and scale up to influence population abundance, distribution and species persistence. Population declines of many migratory marine species have led to calls for connectivity knowledge, especially insights from animal tracking studies, to be more systematically and synthetically incorporated into decision-making. Inclusion of migratory connectivity in the design of conservation and management measures is critical to ensure they are appropriate for the level of risk associated with various degrees of connectivity. Three mechanisms exist to incorporate migratory connectivity into international marine policy which guides conservation implementation: site-selection criteria, network design criteria and policy recommendations. Here, we review the concept of migratory connectivity and its use in international policy, and describe the Migratory Connectivity in the Ocean system, a migratory connectivity evidence-base for the ocean. We propose that without such collaboration focused on migratory connectivity, efforts to effectively conserve these critical species across jurisdictions will have limited effect.
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Affiliation(s)
- Daniel C Dunn
- Nicholas School of the Environment, Duke University, Durham, NC, USA.,Centre for Biodiversity and Conservation Science, School of Earth and Environmental Sciences, University of Queensland, Level 5, Goddard Building (#8), St Lucia, Queensland 4072, Australia
| | - Autumn-Lynn Harrison
- Migratory Bird Center, Smithsonian Conservation Biology Institute, National Zoological Park, Washington, DC, USA
| | - Corrie Curtice
- Nicholas School of the Environment, Duke University, Durham, NC, USA
| | - Sarah DeLand
- Nicholas School of the Environment, Duke University, Durham, NC, USA
| | - Ben Donnelly
- Nicholas School of the Environment, Duke University, Durham, NC, USA
| | - Ei Fujioka
- Nicholas School of the Environment, Duke University, Durham, NC, USA
| | - Eleanor Heywood
- Nicholas School of the Environment, Duke University, Durham, NC, USA
| | - Connie Y Kot
- Nicholas School of the Environment, Duke University, Durham, NC, USA
| | - Sarah Poulin
- Nicholas School of the Environment, Duke University, Durham, NC, USA
| | - Meredith Whitten
- Nicholas School of the Environment, Duke University, Durham, NC, USA
| | - Susanne Åkesson
- Department of Biology, Center for Animal Movement Research, Lund University, Lund, Sweden
| | - Amalia Alberini
- Nicholas School of the Environment, Duke University, Durham, NC, USA
| | - Ward Appeltans
- Intergovernmental Oceanographic Commission (IOC) of UNESCO, IOC Project Office for IODE, Oostende, Belgium
| | | | - Helen Bailey
- Chesapeake Biological Laboratory, University of Maryland Center for Environmental Science, Solomons, MD, USA
| | - Lisa T Ballance
- Southwest Fisheries Science Center, NOAA Fisheries, La Jolla, CA, USA.,Scripps Institution of Oceanography, La Jolla, CA, USA.,Marine Mammal Institute and Department of Fisheries and Wildlife, Oregon State University, Newport, OR, USA
| | - Barbara Block
- Hopkins Marine Station of Stanford University, Pacific Grove, CA, USA
| | - Hannah Blondin
- Nicholas School of the Environment, Duke University, Durham, NC, USA.,Hopkins Marine Station of Stanford University, Pacific Grove, CA, USA
| | | | | | - Paulo Catry
- MARE-Marine and Environmental Sciences Centre, ISPA Instituto Universitário, Lisboa, Portugal
| | - Daniel Cejudo
- Biology Department of the University of Las Palmas de Gran Canaria, Las Palmas, Spain
| | - Jesse Cleary
- Nicholas School of the Environment, Duke University, Durham, NC, USA
| | - Peter Corkeron
- Protected Species Branch, NOAA Northeast Fisheries Science Center, Woods Hole, MA, USA
| | - Daniel P Costa
- Dept of Ecology and Evolutionary Biology, University of California Santa Cruz, Santa Cruz, CA, USA
| | - Michael Coyne
- seaturtle.org, University of California Santa Cruz, Santa Cruz, CA, USA
| | | | | | | | | | - Francesco Ferretti
- Hopkins Marine Station of Stanford University, Pacific Grove, CA, USA.,Department of Fish and Wildlife Conservation, College of Natural Resources and Environment, Virginia Tech, Blacksburg, VA, USA
| | - Angela Formia
- Wildlife Conservation Society, Bronx, NY, USA; Bata, Equatorial Guinea and Libreville, Gabon
| | | | - Ari S Friedlaender
- Dept of Ecology and Evolutionary Biology, University of California Santa Cruz, Santa Cruz, CA, USA
| | - Heidrun Frisch-Nwakanma
- Secretariat of the Convention on Migratory Species of Wild Animals, Bonn, Germany and Abu Dhabi, United Arab Emirates
| | | | - Kristina M Gjerde
- IUCN Global Marine and Polar Programme and World Commission on Protected Areas, Cambridge, MA, USA
| | - Lyle Glowka
- Secretariat of the Convention on Migratory Species of Wild Animals, Bonn, Germany and Abu Dhabi, United Arab Emirates
| | - Brendan J Godley
- Centre for Ecology and Conservation, University of Exeter, Cornwall Campus, Penryn, UK
| | | | | | - Vikki Gunn
- GOBI Secretariat, Seascape Consultants Ltd, Romsey, UK
| | - Yuriko Hashimoto
- Canadian Wildlife Service, Environment and Climate Change Canada, Pacific Wildlife Research Centre, British Columbia, Canada
| | - Lucy M Hawkes
- Centre for Ecology and Conservation, University of Exeter, Cornwall Campus, Penryn, UK
| | - Graeme C Hays
- Centre for Integrative Ecology, Deakin University, Geelong, Victoria, Australia
| | | | | | | | | | - Sara M Maxwell
- School of Interdisciplinary Arts and Sciences, University of Washington, Bothell Campus, Bothell, WA, USA
| | | | - Michelle Modest
- Dept of Ecology and Evolutionary Biology, University of California Santa Cruz, Santa Cruz, CA, USA
| | | | | | - Daniel M Palacios
- Marine Mammal Institute and Department of Fisheries and Wildlife, Oregon State University, Newport, OR, USA
| | - Andrea Pauly
- Secretariat of the Convention on Migratory Species of Wild Animals, Bonn, Germany and Abu Dhabi, United Arab Emirates
| | - Matt Rayner
- Auckland War Memorial Museum, Auckland, New Zealand
| | - Alan F Rees
- Centre for Ecology and Conservation, University of Exeter, Cornwall Campus, Penryn, UK
| | - Erick Ross Salazar
- Wildlife Conservation Society, Bronx, NY, USA; Bata, Equatorial Guinea and Libreville, Gabon
| | - David Secor
- Chesapeake Biological Laboratory, University of Maryland Center for Environmental Science, Solomons, MD, USA
| | - Ana M M Sequeira
- UWA Oceans Institute and School of Biological Sciences, Indian Ocean Marine Research Centre, University of Western Australia, Crawley, Western Australia 6009, Australia
| | | | - Fernando Spina
- ISPRA-Istituto Superiore per la Protezione e la Ricerca Ambientale, Ozzano dell'Emilia, Italy
| | - Sofie Van Parijs
- Protected Species Branch, NOAA Northeast Fisheries Science Center, Woods Hole, MA, USA
| | - Bryan Wallace
- Nicholas School of the Environment, Duke University, Durham, NC, USA.,Ecolibrium, Inc, Boulder, CO, USA
| | - Nuria Varo-Cruz
- Biology Department of the University of Las Palmas de Gran Canaria, Las Palmas, Spain
| | - Melanie Virtue
- Secretariat of the Convention on Migratory Species of Wild Animals, Bonn, Germany and Abu Dhabi, United Arab Emirates
| | | | - Laurie Wilson
- Canadian Wildlife Service, Environment and Climate Change Canada, Pacific Wildlife Research Centre, British Columbia, Canada
| | - Bill Woodward
- U.S. Animal Telemetry Network, NOAA/IOOS, Silver Spring, MD, USA
| | - Patrick N Halpin
- Nicholas School of the Environment, Duke University, Durham, NC, USA
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44
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Sequeira AMM, Heupel MR, Lea MA, Eguíluz VM, Duarte CM, Meekan MG, Thums M, Calich HJ, Carmichael RH, Costa DP, Ferreira LC, Fernandéz-Gracia J, Harcourt R, Harrison AL, Jonsen I, McMahon CR, Sims DW, Wilson RP, Hays GC. The importance of sample size in marine megafauna tagging studies. ECOLOGICAL APPLICATIONS : A PUBLICATION OF THE ECOLOGICAL SOCIETY OF AMERICA 2019; 29:e01947. [PMID: 31183944 DOI: 10.1002/eap.1947] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2018] [Revised: 04/10/2019] [Accepted: 04/17/2019] [Indexed: 06/09/2023]
Abstract
Telemetry is a key, widely used tool to understand marine megafauna distribution, habitat use, behavior, and physiology; however, a critical question remains: "How many animals should be tracked to acquire meaningful data sets?" This question has wide-ranging implications including considerations of statistical power, animal ethics, logistics, and cost. While power analyses can inform sample sizes needed for statistical significance, they require some initial data inputs that are often unavailable. To inform the planning of telemetry and biologging studies of marine megafauna where few or no data are available or where resources are limited, we reviewed the types of information that have been obtained in previously published studies using different sample sizes. We considered sample sizes from one to >100 individuals and synthesized empirical findings, detailing the information that can be gathered with increasing sample sizes. We complement this review with simulations, using real data, to show the impact of sample size when trying to address various research questions in movement ecology of marine megafauna. We also highlight the value of collaborative, synthetic studies to enhance sample sizes and broaden the range, scale, and scope of questions that can be answered.
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Affiliation(s)
- A M M Sequeira
- IOMRC and The University of Western Australia Oceans Institute, School of Biological Sciences, University of Western Australia, 35 Stirling Highway, Crawley, Western Australia, 6009, Australia
| | - M R Heupel
- Australian Institute of Marine Science, PMB No 3, Townsville, Queensland, 4810, Australia
| | - M-A Lea
- Institute for Marine and Antarctic Studies, University of Tasmania, 20 Castray Esplanade, Hobart, Tasmania, 7000, Australia
| | - V M Eguíluz
- Instituto de Física Interdisciplinar y Sistemas Complejos IFISC (CSIC - UIB), E-07122, Palma de Mallorca, Spain
| | - C M Duarte
- Red Sea Research Centre (RSRC), King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - M G Meekan
- Australian Institute of Marine Science, Indian Ocean Marine Research Centre (M096), University of Western Australia, 35 Stirling Highway, Crawley, Western Australia, 6009 Australia
| | - M Thums
- Australian Institute of Marine Science, Indian Ocean Marine Research Centre (M096), University of Western Australia, 35 Stirling Highway, Crawley, Western Australia, 6009 Australia
| | - H J Calich
- IOMRC and The University of Western Australia Oceans Institute, Oceans Graduate School, University of Western Australia, 35 Stirling Highway, Crawley, Western Australia, 6009, Australia
| | - R H Carmichael
- Dauphin Island Sea Lab and, University of South Alabama, 101 Bienville Boulevard, Dauphin Island, Alabama, 36528, USA
| | - D P Costa
- Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, California, 95060, USA
| | - L C Ferreira
- Australian Institute of Marine Science, Indian Ocean Marine Research Centre (M096), University of Western Australia, 35 Stirling Highway, Crawley, Western Australia, 6009 Australia
| | - J Fernandéz-Gracia
- Instituto de Física Interdisciplinar y Sistemas Complejos IFISC (CSIC - UIB), E-07122, Palma de Mallorca, Spain
| | - R Harcourt
- Department of Biological Sciences, Macquarie University, Sydney, New South Wales, 2109, Australia
| | - A-L Harrison
- Migratory Bird Center, Smithsonian Conservation Biology Institute, National Zoological Park, PO Box 37012 MRC 5503 MBC, Washington, D.C., 20013, USA
| | - I Jonsen
- Department of Biological Sciences, Macquarie University, Sydney, New South Wales, 2109, Australia
| | - C R McMahon
- Department of Biological Sciences, Macquarie University, Sydney, New South Wales, 2109, Australia
- Sydney Institute of Marine Science, 19 Chowder Bay Road, Mosman, 2088, New South Wales, Australia
| | - D W Sims
- Marine Biological Association of the United Kingdom, The Laboratory, Citadel Hill, Plymouth, PL1 2PB, United Kingdom
- Ocean and Earth Science, National Oceanography Centre Southampton, Waterfront Campus, University of Southampton, Southampton, SO14 3ZH, United Kingdom
| | - R P Wilson
- Department of Biosciences, Swansea University, Swansea, United Kingdom
| | - G C Hays
- Deakin University, Geelong, Victoria, Australia
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45
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Letessier TB, Mouillot D, Bouchet PJ, Vigliola L, Fernandes MC, Thompson C, Boussarie G, Turner J, Juhel JB, Maire E, Caley MJ, Koldewey HJ, Friedlander A, Sala E, Meeuwig JJ. Remote reefs and seamounts are the last refuges for marine predators across the Indo-Pacific. PLoS Biol 2019; 17:e3000366. [PMID: 31386657 PMCID: PMC6684043 DOI: 10.1371/journal.pbio.3000366] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 07/03/2019] [Indexed: 11/18/2022] Open
Abstract
Since the 1950s, industrial fisheries have expanded globally, as fishing vessels are required to travel further afield for fishing opportunities. Technological advancements and fishery subsidies have granted ever-increasing access to populations of sharks, tunas, billfishes, and other predators. Wilderness refuges, defined here as areas beyond the detectable range of human influence, are therefore increasingly rare. In order to achieve marine resources sustainability, large no-take marine protected areas (MPAs) with pelagic components are being implemented. However, such conservation efforts require knowledge of the critical habitats for predators, both across shallow reefs and the deeper ocean. Here, we fill this gap in knowledge across the Indo-Pacific by using 1,041 midwater baited videos to survey sharks and other pelagic predators such as rainbow runner (Elagatis bipinnulata), mahi-mahi (Coryphaena hippurus), and black marlin (Istiompax indica). We modeled three key predator community attributes: vertebrate species richness, mean maximum body size, and shark abundance as a function of geomorphology, environmental conditions, and human pressures. All attributes were primarily driven by geomorphology (35%-62% variance explained) and environmental conditions (14%-49%). While human pressures had no influence on species richness, both body size and shark abundance responded strongly to distance to human markets (12%-20%). Refuges were identified at more than 1,250 km from human markets for body size and for shark abundance. These refuges were identified as remote and shallow seabed features, such as seamounts, submerged banks, and reefs. Worryingly, hotpots of large individuals and of shark abundance are presently under-represented within no-take MPAs that aim to effectively protect marine predators, such as the British Indian Ocean Territory. Population recovery of predators is unlikely to occur without strategic placement and effective enforcement of large no-take MPAs in both coastal and remote locations.
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Affiliation(s)
- Tom B. Letessier
- Institute of Zoology, Zoological Society of London, London, United Kingdom
- School of Biological Sciences and The UWA Oceans Institute, University of Western Australia, (M092), Crawley, Australia
| | - David Mouillot
- MARBEC, Univ. Montpellier, CNRS, Ifremer, IRD, Montpellier, France
| | - Phil J. Bouchet
- School of Biological Sciences and The UWA Oceans Institute, University of Western Australia, (M092), Crawley, Australia
- School of Ocean Sciences, Bangor University, Menai Bridge, Wales
| | - Laurent Vigliola
- Institut de Recherche pour le Développement, UMR ENTROPIE, LABEX Corail, Nouméa, New Caledonia
| | - Marjorie C. Fernandes
- School of Biological Sciences and The UWA Oceans Institute, University of Western Australia, (M092), Crawley, Australia
| | - Chris Thompson
- School of Biological Sciences and The UWA Oceans Institute, University of Western Australia, (M092), Crawley, Australia
| | - Germain Boussarie
- School of Biological Sciences and The UWA Oceans Institute, University of Western Australia, (M092), Crawley, Australia
- MARBEC, Univ. Montpellier, CNRS, Ifremer, IRD, Montpellier, France
- Institut de Recherche pour le Développement, UMR ENTROPIE, LABEX Corail, Nouméa, New Caledonia
| | - Jemma Turner
- School of Biological Sciences and The UWA Oceans Institute, University of Western Australia, (M092), Crawley, Australia
| | - Jean-Baptiste Juhel
- MARBEC, Univ. Montpellier, CNRS, Ifremer, IRD, Montpellier, France
- Institut de Recherche pour le Développement, UMR ENTROPIE, LABEX Corail, Nouméa, New Caledonia
- Université de la Nouvelle-Calédonie, BPR4, Noumea, New Caledonia
| | - Eva Maire
- MARBEC, Univ. Montpellier, CNRS, Ifremer, IRD, Montpellier, France
| | - M. Julian Caley
- School of Mathematical Sciences, Queensland University of Technology, Brisbane, Queensland, Australia
- Australian Research Council Centre of Excellence for Mathematical and Statistical Frontiers, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Heather J. Koldewey
- Centre for Ecology & Conservation, University of Exeter, Penryn Campus, Penryn, Cornwall, United Kingdom
- Conservation Programmes, Zoological Society of London, London, United Kingdom
| | - Alan Friedlander
- Pristine Seas, National Geographic Society, Washington, DC, United States of America
- Fisheries Ecology Research Lab, University of Hawaii, Honolulu, Hawaii, United States of America
| | - Enric Sala
- Pristine Seas, National Geographic Society, Washington, DC, United States of America
| | - Jessica J. Meeuwig
- School of Biological Sciences and The UWA Oceans Institute, University of Western Australia, (M092), Crawley, Australia
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46
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Global spatial risk assessment of sharks under the footprint of fisheries. Nature 2019; 572:461-466. [PMID: 31340216 DOI: 10.1038/s41586-019-1444-4] [Citation(s) in RCA: 112] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Accepted: 07/10/2019] [Indexed: 11/08/2022]
Abstract
Effective ocean management and the conservation of highly migratory species depend on resolving the overlap between animal movements and distributions, and fishing effort. However, this information is lacking at a global scale. Here we show, using a big-data approach that combines satellite-tracked movements of pelagic sharks and global fishing fleets, that 24% of the mean monthly space used by sharks falls under the footprint of pelagic longline fisheries. Space-use hotspots of commercially valuable sharks and of internationally protected species had the highest overlap with longlines (up to 76% and 64%, respectively), and were also associated with significant increases in fishing effort. We conclude that pelagic sharks have limited spatial refuge from current levels of fishing effort in marine areas beyond national jurisdictions (the high seas). Our results demonstrate an urgent need for conservation and management measures at high-seas hotspots of shark space use, and highlight the potential of simultaneous satellite surveillance of megafauna and fishers as a tool for near-real-time, dynamic management.
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47
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Parton KJ, Galloway TS, Godley BJ. Global review of shark and ray entanglement in anthropogenic marine debris. ENDANGER SPECIES RES 2019. [DOI: 10.3354/esr00964] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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48
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Mucientes G, Queiroz N. Presence of plastic debris and retained fishing hooks in oceanic sharks. MARINE POLLUTION BULLETIN 2019; 143:6-11. [PMID: 31789167 DOI: 10.1016/j.marpolbul.2019.04.028] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 04/10/2019] [Accepted: 04/11/2019] [Indexed: 06/10/2023]
Abstract
In a context where the problem of plastic pollution is globally increasing, more studies are needed to assess the real impact in oceanic megafauna. Here, we reported on the incidence of plastic and also retained hooks in two species of commercially exploited pelagic sharks in two ocean basins, the North Atlantic and South Pacific. In the South Pacific, 1.18% of caught blue sharks were observed with plastic debris on their body and 4.82% and with retained hooks, while 0.00% of shortfin makos had plastic debris and 1.76% were recorded with retained hooks. In the North Atlantic, 0.21% of blue sharks had plastic debris and 0.37% of blue, and 0.78% of shortfin makos were observed with retained hooks.
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Affiliation(s)
- Gonzalo Mucientes
- CIBIO/InBIO - Universidade do Porto, Centro de Investigação em Biodiversidade e Recursos Genéticos, Campus Agrário de Vairão, 4485-668 Vairão, Portugal; Ecoloxía Azul - Blue Ecology (BEC), 36002 Pontevedra, Spain.
| | - Nuno Queiroz
- CIBIO/InBIO - Universidade do Porto, Centro de Investigação em Biodiversidade e Recursos Genéticos, Campus Agrário de Vairão, 4485-668 Vairão, Portugal
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49
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Hays GC, Bailey H, Bograd SJ, Bowen WD, Campagna C, Carmichael RH, Casale P, Chiaradia A, Costa DP, Cuevas E, Nico de Bruyn PJ, Dias MP, Duarte CM, Dunn DC, Dutton PH, Esteban N, Friedlaender A, Goetz KT, Godley BJ, Halpin PN, Hamann M, Hammerschlag N, Harcourt R, Harrison AL, Hazen EL, Heupel MR, Hoyt E, Humphries NE, Kot CY, Lea JSE, Marsh H, Maxwell SM, McMahon CR, Notarbartolo di Sciara G, Palacios DM, Phillips RA, Righton D, Schofield G, Seminoff JA, Simpfendorfer CA, Sims DW, Takahashi A, Tetley MJ, Thums M, Trathan PN, Villegas-Amtmann S, Wells RS, Whiting SD, Wildermann NE, Sequeira AMM. Translating Marine Animal Tracking Data into Conservation Policy and Management. Trends Ecol Evol 2019; 34:459-473. [PMID: 30879872 DOI: 10.1016/j.tree.2019.01.009] [Citation(s) in RCA: 105] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 01/21/2019] [Accepted: 01/22/2019] [Indexed: 11/18/2022]
Abstract
There have been efforts around the globe to track individuals of many marine species and assess their movements and distribution, with the putative goal of supporting their conservation and management. Determining whether, and how, tracking data have been successfully applied to address real-world conservation issues is, however, difficult. Here, we compile a broad range of case studies from diverse marine taxa to show how tracking data have helped inform conservation policy and management, including reductions in fisheries bycatch and vessel strikes, and the design and administration of marine protected areas and important habitats. Using these examples, we highlight pathways through which the past and future investment in collecting animal tracking data might be better used to achieve tangible conservation benefits.
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Affiliation(s)
| | - Helen Bailey
- Chesapeake Biological Laboratory, University of Maryland Center for Environmental Science, Solomons, MD 20688, USA
| | - Steven J Bograd
- NOAA Southwest Fisheries Science Center, Environmental Research Division, Monterey, CA 93940, USA
| | - W Don Bowen
- Population Ecology Division, Bedford Institute of Oceanography, Dartmouth, NS B2Y 4A2, Canada
| | - Claudio Campagna
- Wildlife Conservation Society, Marine Program, Buenos Aires, 1414 Argentina
| | - Ruth H Carmichael
- University Programs, Dauphin Island Sea Lab, Dauphin Island, AL 36528, USA; Department of Marine Sciences, University of South Alabama, Mobile, AL 36688, USA
| | - Paolo Casale
- Department of Biology, University of Pisa, Pisa, Italy
| | - Andre Chiaradia
- Conservation Department, Phillip Island, Nature Parks, Victoria, Australia
| | - Daniel P Costa
- Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, CA 95060, USA
| | - Eduardo Cuevas
- CONACYT - Research Center of Environmental Sciences, Faculty of Natural Sciences, Universidad Autonoma del Carmen, Campeche 24180, Mexico; Pronatura Peninsula de Yucatan, Yucatan 97205, Mexico
| | - P J Nico de Bruyn
- Mammal Research Institute, Department of Zoology & Entomology, University of Pretoria, Hatfield 0028, South Africa
| | - Maria P Dias
- BirdLife International, Cambridge CB2 3QZ, UK; MARE - Marine and Environmental Sciences Center, ISPA - Instituto Universitário, 1149-041 Lisboa, Portugal
| | - Carlos M Duarte
- King Abdullah University of Science and Technology (KAUST), Red Sea Research Center (RSRC), Thuwal, 23955-6900, Saudi Arabia
| | - Daniel C Dunn
- Marine Geospatial Ecology Lab, Nicholas School of the Environment, Duke University, Durham, NC, USA
| | - Peter H Dutton
- Marine Mammal and Turtle Division, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, La Jolla, CA 92037, USA
| | - Nicole Esteban
- Department of Biosciences, Swansea University, Swansea SA2 8PP, Wales, UK
| | - Ari Friedlaender
- Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, CA 95060, USA; Institute for Marine Sciences, University of California Santa Cruz, Santa Cruz, CA 965060, USA
| | - Kimberly T Goetz
- National Institute of Water & Atmospheric Research Ltd (NIWA),Greta Point, Wellington, New Zealand
| | - Brendan J Godley
- Marine Turtle Research Group, Centre for Ecology and Conservation, School of Biosciences, University of Exeter, Cornwall Campus, Penryn TR10 9EZ, UK
| | - Patrick N Halpin
- Marine Geospatial Ecology Lab, Nicholas School of the Environment, Duke University, Durham, NC, USA
| | - Mark Hamann
- College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia
| | - Neil Hammerschlag
- Rosenstiel School of Marine & Atmospheric Science, Abess Center for Ecosystem Science & Policy, University of Miami, Miami, FL 33149, USA
| | - Robert Harcourt
- Department of Biological Sciences, Macquarie University, Sydney, NSW 2109, Australia
| | - Autumn-Lynn Harrison
- Migratory Bird Center, Smithsonian Conservation Biology Institute, Washington, DC 20008, USA
| | - Elliott L Hazen
- NOAA Southwest Fisheries Science Center, Environmental Research Division, Monterey, CA 93940, USA
| | - Michelle R Heupel
- Australian Institute of Marine Science, Townsville, QLD 4810, Australia
| | - Erich Hoyt
- Whale and Dolphin Conservation, Bridport, Dorset, UK; IUCN Joint SSC/WCPA Marine Mammal Protected Areas Task Force, Gland, Switzerland
| | - Nicolas E Humphries
- Marine Biological Association of the United Kingdom, The Laboratory, Plymouth PL1 2PB, UK
| | - Connie Y Kot
- Marine Geospatial Ecology Lab, Nicholas School of the Environment, Duke University, Durham, NC, USA
| | - James S E Lea
- Department of Zoology, University of Cambridge, Cambridge, UK
| | - Helene Marsh
- College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia
| | - Sara M Maxwell
- School of Interdisciplinary Arts and Sciences, University of Washington, Bothell Campus, Bothell, WA 98011, USA
| | - Clive R McMahon
- Department of Biological Sciences, Macquarie University, Sydney, NSW 2109, Australia; Ecology and Biodiversity Centre, Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS 7004, Australia; Sydney Institute of Marine Science, Mosman, NSW 2088, Australia
| | - Giuseppe Notarbartolo di Sciara
- Tethys Research Institute, 20121 Milano, Italy; IUCN Joint SSC/WCPA Marine Mammal Protected Areas Task Force, Gland, Switzerland
| | - Daniel M Palacios
- Marine Mammal Institute and Department of Fisheries and Wildlife, Oregon State University, Newport, OR 97365, USA
| | - Richard A Phillips
- British Antarctic Survey, Natural Environment Research Council, Cambridge, CB3 0ET, UK
| | - David Righton
- Cefas Laboratory, Suffolk, NR33 0HT, UK; School of Environmental Sciences, University of East Anglia, Norwich, NR4 7TJ, UK
| | - Gail Schofield
- School of Biological and Chemical Sciences, Queen Mary University of London, E14NS, London, UK
| | - Jeffrey A Seminoff
- Marine Turtle Ecology and Assessment Program, NOAA-Southwest Fisheries Science Center, La Jolla, CA 92037, USA
| | - Colin A Simpfendorfer
- College of Science and Engineering, James Cook University, Townsville, QLD 4811, Australia
| | - David W Sims
- Marine Biological Association of the United Kingdom, The Laboratory, Plymouth PL1 2PB, UK; Ocean and Earth Science, National Oceanography Centre Southampton, University of Southampton, Waterfront Campus, Southampton, SO14 3ZH, UK; Centre for Biological Sciences, Building 85, University of Southampton, Highfield Campus, Southampton, SO17 1BJ, UK
| | - Akinori Takahashi
- National Institute of Polar Research, Tachikawa, Tokyo 190-8518, Japan
| | - Michael J Tetley
- IUCN Joint SSC/WCPA Marine Mammal Protected Areas Task Force, Gland, Switzerland
| | - Michele Thums
- Australian Institute of Marine Science, Indian Ocean Marine Research Centre (M096), University of Western Australia, Crawley, WA 6009, Australia
| | - Philip N Trathan
- IUCN Joint SSC/WCPA Marine Mammal Protected Areas Task Force, Gland, Switzerland
| | - Stella Villegas-Amtmann
- Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, CA 95060, USA
| | - Randall S Wells
- Chicago Zoological Society's Sarasota Dolphin Research Program, c/o Mote Marine Laboratory, Sarasota, FL 34236, USA
| | - Scott D Whiting
- Marine Science Program, Department of Biodiversity, Conservation, and Attractions, Kensington, WA 6151, Australia
| | - Natalie E Wildermann
- Marine Turtle Research, Ecology and Conservation Group, Department of Earth, Ocean and Atmospheric, Science, Florida State University, Tallahassee, FL 32306-4320, USA
| | - Ana M M Sequeira
- IOMRC and The University of Western Australia Oceans Institute, School of Biological Sciences, University of Western Australia, Crawley, WA 6009, Australia
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50
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White TD, Ferretti F, Kroodsma DA, Hazen EL, Carlisle AB, Scales KL, Bograd SJ, Block BA. Predicted hotspots of overlap between highly migratory fishes and industrial fishing fleets in the northeast Pacific. SCIENCE ADVANCES 2019; 5:eaau3761. [PMID: 30891492 PMCID: PMC6415957 DOI: 10.1126/sciadv.aau3761] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 02/14/2019] [Indexed: 05/22/2023]
Abstract
Many species of sharks and some tunas are threatened by overexploitation, yet the degree of overlap between industrial fisheries and pelagic fishes remains poorly understood. Using satellite tracks from 933 industrial fishing vessels and predictive habitat models from 876 electronic tags deployed on seven shark and tuna species, we developed fishing effort maps across the northeast Pacific Ocean and assessed overlap with core habitats of pelagic fishes. Up to 35% of species' core habitats overlapped with fishing effort. We identified overlap hotspots along the North American shelf, the equatorial Pacific, and the subtropical gyre. Results indicate where species require international conservation efforts and effective management within national waters. Only five national fleets (Mexico, Taiwan, China, Japan, and the United States) account for >90% of overlap with core habitats of our focal sharks and tunas on the high seas. These results inform global negotiations to achieve sustainability on the high seas.
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Affiliation(s)
- Timothy D. White
- Hopkins Marine Station, Stanford University, Pacific Grove, CA, USA
| | | | | | - Elliott L. Hazen
- National Oceanic and Atmospheric Administration, Southwest Fisheries Science Center, Monterey, CA, USA
- Institute of Marine Sciences, University of California, Santa Cruz, Santa Cruz, CA, USA
- Woods Institute Visiting Scholar, Stanford University, Stanford, CA, USA
| | - Aaron B. Carlisle
- School of Marine Science and Policy, University of Delaware, Lewes, DE, USA
| | - Kylie L. Scales
- National Oceanic and Atmospheric Administration, Southwest Fisheries Science Center, Monterey, CA, USA
- University of the Sunshine Coast, School of Science and Engineering, Maroochydore, Queensland, Australia
| | - Steven J. Bograd
- National Oceanic and Atmospheric Administration, Southwest Fisheries Science Center, Monterey, CA, USA
- Institute of Marine Sciences, University of California, Santa Cruz, Santa Cruz, CA, USA
| | - Barbara A. Block
- Hopkins Marine Station, Stanford University, Pacific Grove, CA, USA
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