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de Groot VA, Trueman C, Bates AE. Incorporating otolith-isotope inferred field metabolic rate into conservation strategies. CONSERVATION PHYSIOLOGY 2024; 12:coae013. [PMID: 38666227 PMCID: PMC11044438 DOI: 10.1093/conphys/coae013] [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: 08/05/2022] [Revised: 02/08/2024] [Accepted: 02/24/2024] [Indexed: 04/28/2024]
Abstract
Fluctuating ocean conditions are rearranging whole networks of marine communities-from individual-level physiological thresholds to ecosystem function. Physiological studies support predictions from individual-level responses (biochemical, cellular, tissue, respiratory potential) based on laboratory experiments. The otolith-isotope method of recovering field metabolic rate has recently filled a gap for the bony fishes, linking otolith stable isotope composition to in situ oxygen consumption and experienced temperature estimates. Here, we review the otolith-isotope method focusing on the biochemical and physiological processes that yield estimates of field metabolic rate. We identify a multidisciplinary pathway in the application of this method, providing concrete research goals (field, modeling) aimed at linking individual-level physiological data to higher levels of biological organization. We hope that this review will provide researchers with a transdisciplinary 'roadmap', guiding the use of the otolith-isotope method to bridge the gap between individual-level physiology, observational field studies, and modeling efforts, while ensuring that in situ data is central in marine policy-making aimed at mitigating climatic and anthropogenic threats.
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Affiliation(s)
- Valesca A de Groot
- Department of Ocean Sciences, Memorial University of Newfoundland, St. John’s, NL, A1C 5S7, Canada
- University of Victoria, 3800 Finnerty Rd, Victoria, BCV8 P5C2, Canada
| | - Clive Trueman
- School of Ocean and Earth Science, University of Southampton, Southampton SO1 43ZH, UK
| | - Amanda E Bates
- Department of Ocean Sciences, Memorial University of Newfoundland, St. John’s, NL, A1C 5S7, Canada
- University of Victoria, 3800 Finnerty Rd, Victoria, BCV8 P5C2, Canada
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2
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Chen R, Chaparro-Pedraza PC, Xiao S, Jia P, Liu QX, de Roos AM. Marine reserves promote cycles in fish populations on ecological and evolutionary time scales. Proc Natl Acad Sci U S A 2023; 120:e2307529120. [PMID: 37956293 PMCID: PMC10666098 DOI: 10.1073/pnas.2307529120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 10/10/2023] [Indexed: 11/15/2023] Open
Abstract
Marine reserves are considered essential for sustainable fisheries, although their effectiveness compared to traditional fisheries management is debated. The effect of marine reserves is mostly studied on short ecological time scales, whereas fisheries-induced evolution is a well-established consequence of harvesting. Using a size-structured population model for an exploited fish population of which individuals spend their early life stages in a nursery habitat, we show that marine reserves will shift the mode of population regulation from low size-selective survival late in life to low, early-life survival due to strong resource competition. This shift promotes the occurrence of rapid ecological cycles driven by density-dependent recruitment as well as much slower evolutionary cycles driven by selection for the optimal body to leave the nursery grounds, especially with larger marine reserves. The evolutionary changes increase harvesting yields in terms of total biomass but cause disproportionately large decreases in yields of larger, adult fish. Our findings highlight the importance of carefully considering the size of marine reserves and the individual life history of fish when managing eco-evolutionary marine systems to ensure both population persistence as well as stable fisheries yields.
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Affiliation(s)
- Renfei Chen
- School of Life Science, Shanxi Normal University, Taiyuan030000, China
| | | | - Suping Xiao
- School of Mathematics and Computer Science, Shanxi Normal University, Taiyuan030000, China
| | - Pu Jia
- Institute of Ecological Science, School of Life Sciences, South China Normal University, Guangzhou510631, China
| | - Quan-Xing Liu
- School of Mathematical Sciences, Shanghai Jiao Tong University, Shanghai200240, China
| | - André M. de Roos
- Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, AmsterdamNL-1098 XH, The Netherlands
- The Santa Fe Institute, Santa Fe, NM87501
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Ferreira TO, Queiroz HM, Nóbrega GN, de Souza Júnior VS, Barcellos D, Ferreira AD, Otero XL. Litho-climatic characteristics and its control over mangrove soil geochemistry: A macro-scale approach. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 811:152152. [PMID: 34919924 DOI: 10.1016/j.scitotenv.2021.152152] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 11/26/2021] [Accepted: 11/29/2021] [Indexed: 06/14/2023]
Abstract
Brazil hosts an extensive coastal area, marked by a great diversity of geoenvironments. The present study evaluated the role of geoclimatic factors in the geochemistry of mangrove soils by using wet extractions and several physical and chemical parameters. Soil samples were collected in 11 mangrove forests from NE (n = 94) and SE Brazil (n = 230). Our results show an important effect of the surrounding geology and climate on the geochemistry of the mangrove soils. NE mangroves are dominated by suboxic soils (mean: Eh of +150 ± 174 mV and pH 7.1 ± 0.5, respectively) while anoxic conditions prevail in the SE mangrove soils (mean: Eh -46 ± 251 mV and pH 6.5 ± 0.5). In the NE region, a period of several months without rainfall and high temperatures leads to soil suboxic conditions. Conversely, at the SE coast, the surrounding mountain range contributes to well-distributed rain favoring anoxic conditions. The contrasting geochemical environment caused differences in the geochemistry of elements such as C, Fe, and S. Significantly higher Fe (193 ± 24 μmol g-1) and organic carbon contents (6.9 ± 7.1%) were recorded in the SE coast. The higher organic carbon contents are possibly related to Fe organo-mineral associations. These differences are ultimately associated with the contrasting geological surroundings (crystalline massifs at the SE and the iron poor sedimentary formations at the NE). The higher contents of reactive Fe and organic carbon also triggered more intense pyritization in the SE mangroves (pyritic Fe: 93 ± 63 μmol g-1). Our results demonstrate that climate and geological surroundings create identifiable patterns at a regional level and, thus, studies should take these factors into account on future global modelling approaches.
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Affiliation(s)
- Tiago Osório Ferreira
- Luiz de Queiroz College of Agriculture, University of São Paulo (ESALQ-USP), Av. Pádua Dias 11, Piracicaba, São Paulo 13418-900, Brazil.
| | - Hermano Melo Queiroz
- Luiz de Queiroz College of Agriculture, University of São Paulo (ESALQ-USP), Av. Pádua Dias 11, Piracicaba, São Paulo 13418-900, Brazil
| | - Gabriel Nuto Nóbrega
- Graduate Program in Earth Sciences (Geochemistry), Department of Geochemistry, Federal Fluminense University, Niterói, RJ 24020-140, Brazil
| | - Valdomiro S de Souza Júnior
- Universidade Federal Rural de Pernambuco, Departamento de Agronomia, Av. Dom Manoel de Medeiros, s/n, Recife, PE 52171-900, Brazil
| | - Diego Barcellos
- Luiz de Queiroz College of Agriculture, University of São Paulo (ESALQ-USP), Av. Pádua Dias 11, Piracicaba, São Paulo 13418-900, Brazil; Department of Environmental Science, Federal University of São Paulo (UNIFESP), Rua São Nicolau, 210, Diadema, SP 09913-030, Brazil
| | - Amanda Duim Ferreira
- Luiz de Queiroz College of Agriculture, University of São Paulo (ESALQ-USP), Av. Pádua Dias 11, Piracicaba, São Paulo 13418-900, Brazil
| | - Xosé L Otero
- CRETUS Institute, Department of Edaphology and Agricultural Chemistry - Faculty of Biology, Universidade de Santiago de Compostela, Campus Sur, Santiago de Compostela 15782, Spain
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4
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Fairclough DV, Ayvazian SG, Newman SJ. Complementary evidence for small-scale spatial assemblages of the exploited grass emperor (Lethrinus laticaudis) in the Shark Bay World Heritage Area, Western Australia. MARINE ENVIRONMENTAL RESEARCH 2022; 173:105543. [PMID: 34952373 DOI: 10.1016/j.marenvres.2021.105543] [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: 07/12/2021] [Revised: 11/26/2021] [Accepted: 12/16/2021] [Indexed: 06/14/2023]
Abstract
Understanding the connectivity of exploited fish populations is critical to their management under both rapid and long-term environmental change. Patterns of connectivity are unknown for most fishes in the Shark Bay World Heritage Area (Western Australia), a large, shallow embayment in the eastern Indian Ocean, vulnerable to marine heatwaves. The composition of oxygen (δ18O) and carbon (δ13C) stable isotopes in whole otoliths of the recreationally-important reef fish Lethrinus laticaudis did not differ between Shark Bay's two large inner gulfs, separated by the Peron Peninsula. However, significant differences were found between pairs of locations with different salinities over a spatial scale of ∼60 km within each gulf. Misclassification of samples was greatest between locations mostly in different gulfs, but with similar salinities (15-41%), and rare between adjacent locations in the same gulf with different salinities (0-5%). This is influenced by the strong correlation (ρ = 0.93) between δ18O in otoliths and the salinity gradient of the two gulfs, and further supported by a lack of correlation in the similarities of isotope compositions and distances between locations (ρ = 0.16). Fish samples from each of the different locations were composed of multiple year-classes, yet the otolith chemistry distinguished them at a minimum distance of 16 km apart, indicating that small-scale connectivity of L. laticaudis is likely during the majority of their life cycle. Physical barriers to movement of post-settlement individuals (land masses, expansive seagrass and sand) between the small, isolated reefs of Shark Bay may reduce large scale connectivity, which instead would occur mostly by egg and larval dispersal. The probable scale of connectivity of post-settlement L. laticaudis indicates that this major recreational fishing target species may be vulnerable to localised over-exploitation and negative environmental effects on population sources and sinks within this shallow embayment. Maintaining sustainable spawning biomass at scales relevant to the extent of connectivity for such a species in a World Heritage Area is an important management consideration.
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Affiliation(s)
- David V Fairclough
- Western Australian Fisheries and Marine Research Laboratories, Department of Primary Industries and Regional Development, Government of Western Australia, P.O. Box 20, North Beach, WA, 6920, Australia
| | - Suzanne G Ayvazian
- U.S. Environmental Protection Agency, Office of Research and Development, Center for Environmental Measurement and Modeling, Atlantic Coastal Environmental Sciences Division, 27 Tarzwell Drive, Narragansett, RI, 02882, USA
| | - Stephen J Newman
- Western Australian Fisheries and Marine Research Laboratories, Department of Primary Industries and Regional Development, Government of Western Australia, P.O. Box 20, North Beach, WA, 6920, Australia.
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Bell-Tilcock M, Jeffres CA, Rypel AL, Willmes M, Armstrong RA, Holden P, Moyle PB, Fangue NA, Katz JVE, Sommer TR, Conrad JL, Johnson RC. Biogeochemical processes create distinct isotopic fingerprints to track floodplain rearing of juvenile salmon. PLoS One 2021; 16:e0257444. [PMID: 34710099 PMCID: PMC8553044 DOI: 10.1371/journal.pone.0257444] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 09/01/2021] [Indexed: 11/18/2022] Open
Abstract
Floodplains represent critical nursery habitats for a variety of fish species due to their highly productive food webs, yet few tools exist to quantify the extent to which these habitats contribute to ecosystem-level production. Here we conducted a large-scale field experiment to characterize differences in food web composition and stable isotopes (δ¹³C, δ¹⁵N, δ³⁴S) for salmon rearing on a large floodplain and adjacent river in the Central Valley, California, USA. The study covered variable hydrologic conditions including flooding (1999, 2017), average (2016), and drought (2012-2015). In addition, we determined incorporation rates and tissue fractionation between prey and muscle from fish held in enclosed locations (experimental fields, cages) at weekly intervals. Finally, we measured δ³⁴S in otoliths to test if these archival biominerals could be used to reconstruct floodplain use. Floodplain-reared salmon had a different diet composition and lower δ13C and δ³⁴S (δ¹³C = -33.02±2.66‰, δ³⁴S = -3.47±2.28‰; mean±1SD) compared to fish in the adjacent river (δ¹³C = -28.37±1.84‰, δ³⁴S = +2.23±2.25‰). These isotopic differences between habitats persisted across years of extreme droughts and floods. Despite the different diet composition, δ¹⁵N values from prey items on the floodplain (δ¹⁵N = 7.19±1.22‰) and river (δ¹⁵N = 7.25±1.46‰) were similar, suggesting similar trophic levels. The food web differences in δ13C and δ³⁴S between habitats were also reflected in salmon muscle tissue, reaching equilibrium between 24-30 days (2014, δ¹³C = -30.74±0.73‰, δ³⁴S = -4.6±0.68‰; 2016, δ¹³C = -34.74 ±0.49‰, δ³⁴S = -5.18±0.46‰). δ³⁴S measured in sequential growth bands in otoliths recorded a weekly time-series of shifting diet inputs, with the outermost layers recording time spent on the floodplain (δ³⁴S = -5.60±0.16‰) and river (δ³⁴S = 3.73±0.98‰). Our results suggest that δ¹³C and δ³⁴S can be used to differentiate floodplain and river rearing habitats used by native fishes, such as Chinook Salmon, across different hydrologic conditions and tissues. Together these stable isotope analyses provide a toolset to quantify the role of floodplains as fish habitats.
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Affiliation(s)
- Miranda Bell-Tilcock
- Center for Watershed Sciences, University of California, Davis, CA, United States of America
| | - Carson A. Jeffres
- Center for Watershed Sciences, University of California, Davis, CA, United States of America
| | - Andrew L. Rypel
- Center for Watershed Sciences, University of California, Davis, CA, United States of America
- Department of Wildlife, Fish & Conservation Biology, University of California, Davis, CA, United States of America
| | - Malte Willmes
- Institute of Marine Sciences, UC Santa Cruz, Santa Cruz, CA, United States of America
- National Marine Fisheries Service, Southwest Fisheries Science Center, Santa Cruz, CA, United States of America
| | - Richard A. Armstrong
- Research School of Earth Sciences, Australian National University, Acton, ACT, Australia
| | - Peter Holden
- Research School of Earth Sciences, Australian National University, Acton, ACT, Australia
| | - Peter B. Moyle
- Center for Watershed Sciences, University of California, Davis, CA, United States of America
| | - Nann A. Fangue
- Department of Wildlife, Fish & Conservation Biology, University of California, Davis, CA, United States of America
| | | | - Ted R. Sommer
- Department of Water Resources, West Sacramento, CA, United States of America
| | - J. Louise Conrad
- Delta Stewardship Council, Sacramento, CA, United States of America
| | - Rachel C. Johnson
- Center for Watershed Sciences, University of California, Davis, CA, United States of America
- National Marine Fisheries Service, Southwest Fisheries Science Center, Santa Cruz, CA, United States of America
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6
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Lugendo BR, Kimirei IA. Anthropogenic nitrogen pollution in mangrove ecosystems along Dar es Salaam and Bagamoyo coasts in Tanzania. MARINE POLLUTION BULLETIN 2021; 168:112415. [PMID: 33930646 DOI: 10.1016/j.marpolbul.2021.112415] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 04/18/2021] [Accepted: 04/20/2021] [Indexed: 06/12/2023]
Abstract
Mangroves are among the most productive coastal ecosystems; however, they are prone to anthropogenic pollution due to their land-sea interface position. We used stable nitrogen isotopes and spectrophotometric nitrate analysis to study the anthropogenic pollution in five mangrove ecosystems in Tanzania, including two polluted (Mzinga and Kizinga), one moderate (Kunduchi) and non-polluted (Mbegani and Ras Dege) sites. Also, we tested the suitability of mangrove leaves, roots, sediment, and gastropod as indicators of anthropogenic nitrogen pollution using stable δ15N isotope analysis. Results revealed higher than 10‰ δ15N values in all analysed components and the highest nitrate concentrations of 16.44 mg L-1 in the interstitial waters at the polluted sites, indicating anthropogenic nitrogen inputs. The δ15N enrichment increased in the order: non-polluted < moderate < polluted. The polluted sites are fed by freshwater creeks and probably receive high loads of domestic sewage from the surrounding communities, industries, and agricultural effluents. Therefore, to protect mangrove ecosystems, proper waste and wastewater management upstream are recommended.
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Affiliation(s)
- Blandina R Lugendo
- School of Aquatic Sciences and Fisheries Technology (SoAF), University of Dar es Salaam P. O. Box 60091, Dar es Salaam, Tanzania; Tanzania Fisheries Research Institute (TAFIRI), P.O. Box 9750, Dar es Salaam, Tanzania.
| | - Ismael A Kimirei
- School of Aquatic Sciences and Fisheries Technology (SoAF), University of Dar es Salaam P. O. Box 60091, Dar es Salaam, Tanzania; Tanzania Fisheries Research Institute (TAFIRI), P.O. Box 9750, Dar es Salaam, Tanzania.
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7
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Carr H, Abas M, Boutahar L, Caretti ON, Chan WY, Chapman ASA, de Mendonça SN, Engleman A, Ferrario F, Simmons KR, Verdura J, Zivian A. The Aichi Biodiversity Targets: achievements for marine conservation and priorities beyond 2020. PeerJ 2020; 8:e9743. [PMID: 33391861 PMCID: PMC7759131 DOI: 10.7717/peerj.9743] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Accepted: 07/27/2020] [Indexed: 11/20/2022] Open
Abstract
In 2010 the Conference of the Parties (COP) for the Convention on Biological Diversity revised and updated a Strategic Plan for Biodiversity 2011–2020, which included the Aichi Biodiversity Targets. Here a group of early career researchers mentored by senior scientists, convened as part of the 4th World Conference on Marine Biodiversity, reflects on the accomplishments and shortfalls under four of the Aichi Targets considered highly relevant to marine conservation: target 6 (sustainable fisheries), 11 (protection measures), 15 (ecosystem restoration and resilience) and 19 (knowledge, science and technology). We conclude that although progress has been made towards the targets, these have not been fully achieved for the marine environment by the 2020 deadline. The progress made, however, lays the foundations for further work beyond 2020 to work towards the 2050 Vision for Biodiversity. We identify key priorities that must be addressed to better enable marine biodiversity conservation efforts moving forward.
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Affiliation(s)
- Hannah Carr
- The Joint Nature Conservation Committee, Peterborough, Cambridgeshire, UK
| | - Marina Abas
- Departamento de Ciencias Marinas y Costeras, Universidad Autónoma de Baja California Sur, La Paz, Baja California Sur, Mexico
| | - Loubna Boutahar
- BioBio Research Center, BioEcoGen Laboratory, Faculty of Sciences, Mohammed V University in Rabat, Rabat, Morocco.,Laboratorío de Biología Marina, Departamento de Zoología, Universidad de Sevilla, Sevilla, Spain
| | - Olivia N Caretti
- Department of Marine, Earth, & Atmospheric Sciences, North Carolina State University, Raleigh, NC, USA
| | - Wing Yan Chan
- Australian Institute of Marine Science, Townsville, QLD, Australia.,School of BioSciences, University of Melbourne, Melbourne, VIC, Australia
| | - Abbie S A Chapman
- School of Ocean and Earth Science, University of Southampton, Southampton, Hampshire, UK.,Centre for Biodiversity and Environment Research, University College London, London, UK
| | | | - Abigail Engleman
- Department of Biological Sciences, Florida State University, Tallahassee, FL, USA
| | - Filippo Ferrario
- Québec-Ocean and Département de Biologie, Université Laval, Québec, QC, Canada
| | - Kayelyn R Simmons
- Department of Marine, Earth, & Atmospheric Sciences, North Carolina State University, Raleigh, NC, USA
| | - Jana Verdura
- Institut d'Ecologia Aquàtica, Facultat de Ciències, Universitat de Girona, Girona, Spain
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Samoilys MA, Halford A, Osuka K. Disentangling drivers of the abundance of coral reef fishes in the Western Indian Ocean. Ecol Evol 2019; 9:4149-4167. [PMID: 31015995 PMCID: PMC6468081 DOI: 10.1002/ece3.5044] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 01/28/2019] [Accepted: 02/08/2019] [Indexed: 01/15/2023] Open
Abstract
AIM Understanding the drivers of the structure of coral reef fish assemblages is vital for their future conservation. Quantifying the separate roles of natural drivers from the increasing influence of anthropogenic factors, such as fishing and climate change, is a key component of this understanding. It follows that the intrinsic role of historical biogeographical and geomorphological factors must be accounted for when trying to understand the effects of contemporary disturbances such as fishing. LOCATION Comoros, Madagascar, Mozambique and Tanzania, Western Indian Ocean (WIO). METHODS We modeled patterns in the density and biomass of an assemblage of reef-associated fish species from 11 families, and their association with 16 biophysical variables. RESULTS Canonical analysis of principal coordinates revealed strong country affiliations of reef fish assemblages and distance-based linear modeling confirmed geographic location and reef geomorphology were the most significant correlates, explaining 32% of the observed variation in fish assemblage structure. Another 6%-8% of variation was explained by productivity gradients (chl_a), and reef exposure or slope. Where spatial effects were not significant between mainland continental locations, fishing effects became evident explaining 6% of the variation in data. No correlation with live coral was detected. Only 37 species, predominantly lower trophic level taxa, were significant in explaining differences in assemblages between sites. MAIN CONCLUSIONS Spatial and geomorphological histories remain a major influence on the structure of reef fish assemblages in the WIO. Reef geomorphology was closely linked to standing biomass, with "ocean-exposed" fringing reefs supporting high average biomass of ~1,000 kg/ha, while "lagoon-exposed fringing" reefs and "inner seas patch complex" reefs yielded substantially less at ~500kg/ha. Further, the results indicate the influence of benthic communities on fish assemblages is scale dependent. Such insights will be pivotal for managers seeking to balance long-term sustainability of artisanal reef fisheries with conservation of coral reef systems.
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Affiliation(s)
- Melita A. Samoilys
- CORDIO East AfricaMombasaKenya
- Department of ZoologyUniversity of OxfordOxfordUK
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9
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Rooker JR, Dance MA, Wells RJD, Quigg A, Hill RL, Appeldoorn RS, Padovani Ferreira B, Boswell KM, Sanchez PJ, Moulton DL, Kitchens LL, Rooker GJ, Aschenbrenner A. Seascape connectivity and the influence of predation risk on the movement of fishes inhabiting a back‐reef ecosystem. Ecosphere 2018. [DOI: 10.1002/ecs2.2200] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Jay R. Rooker
- Department of Marine Biology Texas A&M University (Galveston Campus) 1001 Texas Clipper Road Galveston Texas 77554 USA
- Department of Wildlife and Fisheries Sciences Texas A&M University College Station Texas 77843 USA
| | - Michael A. Dance
- Department of Marine Biology Texas A&M University (Galveston Campus) 1001 Texas Clipper Road Galveston Texas 77554 USA
- Department of Wildlife and Fisheries Sciences Texas A&M University College Station Texas 77843 USA
| | - R. J. David Wells
- Department of Marine Biology Texas A&M University (Galveston Campus) 1001 Texas Clipper Road Galveston Texas 77554 USA
- Department of Wildlife and Fisheries Sciences Texas A&M University College Station Texas 77843 USA
| | - Antonietta Quigg
- Department of Marine Biology Texas A&M University (Galveston Campus) 1001 Texas Clipper Road Galveston Texas 77554 USA
- Department of Oceanography Texas A&M University College Station Texas 77843 USA
| | - Ronald L. Hill
- NOAA/NMFS/Southeast Fisheries Science Center 4700 Avenue U Galveston Texas 77551 USA
| | | | - Beatrice Padovani Ferreira
- Departamento de Oceanografia Universidade Federal de Pernambuco Avenida da Arquitetura, s/n, Cidade Universitária 50740‐550 Recife Brazil
| | - Kevin M. Boswell
- Department of Biological Sciences Marine Sciences Program Florida International University North Miami Florida 33181 USA
| | - Phillip J. Sanchez
- Department of Marine Biology Texas A&M University (Galveston Campus) 1001 Texas Clipper Road Galveston Texas 77554 USA
- Department of Marine Sciences University of Puerto Rico Mayaguez 00681 Puerto Rico
| | - David L. Moulton
- Department of Marine Biology Texas A&M University (Galveston Campus) 1001 Texas Clipper Road Galveston Texas 77554 USA
- Department of Wildlife and Fisheries Sciences Texas A&M University College Station Texas 77843 USA
| | - Larissa L. Kitchens
- Department of Marine Biology Texas A&M University (Galveston Campus) 1001 Texas Clipper Road Galveston Texas 77554 USA
- Department of Wildlife and Fisheries Sciences Texas A&M University College Station Texas 77843 USA
| | - Garrett J. Rooker
- Department of Marine Biology Texas A&M University (Galveston Campus) 1001 Texas Clipper Road Galveston Texas 77554 USA
| | - Alexandre Aschenbrenner
- Departamento de Oceanografia Universidade Federal de Pernambuco Avenida da Arquitetura, s/n, Cidade Universitária 50740‐550 Recife Brazil
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10
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Structural complexity and fish body size interactively affect habitat optimality. Oecologia 2017; 185:257-267. [DOI: 10.1007/s00442-017-3932-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 08/18/2017] [Indexed: 10/19/2022]
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11
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Kimirei IA, Igulu MM, Semba M, Lugendo BR. Small Estuarine and Non-Estuarine Mangrove Ecosystems of Tanzania: Overlooked Coastal Habitats? ESTUARIES OF THE WORLD 2016. [DOI: 10.1007/978-3-319-25370-1_13] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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12
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Igulu MM, Nagelkerken I, Dorenbosch M, Grol MGG, Harborne AR, Kimirei IA, Mumby PJ, Olds AD, Mgaya YD. Mangrove habitat use by juvenile reef fish: meta-analysis reveals that tidal regime matters more than biogeographic region. PLoS One 2014; 9:e114715. [PMID: 25551761 PMCID: PMC4281128 DOI: 10.1371/journal.pone.0114715] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Accepted: 11/12/2014] [Indexed: 12/04/2022] Open
Abstract
Identification of critical life-stage habitats is key to successful conservation efforts. Juveniles of some species show great flexibility in habitat use while other species rely heavily on a restricted number of juvenile habitats for protection and food. Considering the rapid degradation of coastal marine habitats worldwide, it is important to evaluate which species are more susceptible to loss of juvenile nursery habitats and how this differs across large biogeographic regions. Here we used a meta-analysis approach to investigate habitat use by juvenile reef fish species in tropical coastal ecosystems across the globe. Densities of juvenile fish species were compared among mangrove, seagrass and coral reef habitats. In the Caribbean, the majority of species showed significantly higher juvenile densities in mangroves as compared to seagrass beds and coral reefs, while for the Indo-Pacific region seagrass beds harbored the highest overall densities. Further analysis indicated that differences in tidal amplitude, irrespective of biogeographic region, appeared to be the major driver for this phenomenon. In addition, juvenile reef fish use of mangroves increased with increasing water salinity. In the Caribbean, species of specific families (e.g. Lutjanidae, Haemulidae) showed a higher reliance on mangroves or seagrass beds as juvenile habitats than other species, whereas in the Indo-Pacific family-specific trends of juvenile habitat utilization were less apparent. The findings of this study highlight the importance of incorporating region-specific tidal inundation regimes into marine spatial conservation planning and ecosystem based management. Furthermore, the significant role of water salinity and tidal access as drivers of mangrove fish habitat use implies that changes in seawater level and rainfall due to climate change may have important effects on how juvenile reef fish use nearshore seascapes in the future.
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Affiliation(s)
- Mathias M. Igulu
- Radboud University Nijmegen, Institute for Water and Wetland Research, Department of Animal Ecology and Ecophysiology, Nijmegen, The Netherlands
- Tanzania Fisheries Research Institute, Dar es Salaam, Tanzania
| | - Ivan Nagelkerken
- Radboud University Nijmegen, Institute for Water and Wetland Research, Department of Animal Ecology and Ecophysiology, Nijmegen, The Netherlands
- Southern Seas Ecology Laboratories, School of Biological Sciences and The Environment Institute, The University of Adelaide, Adelaide, Australia
- * E-mail:
| | - Martijn Dorenbosch
- Radboud University Nijmegen, Institute for Water and Wetland Research, Department of Animal Ecology and Ecophysiology, Nijmegen, The Netherlands
| | - Monique G. G. Grol
- Radboud University Nijmegen, Institute for Water and Wetland Research, Department of Animal Ecology and Ecophysiology, Nijmegen, The Netherlands
| | - Alastair R. Harborne
- Marine Spatial Ecology Laboratory and Australian Research Council Centre of Excellence for Coral Reef Studies, School of Biological Sciences, The University of Queensland, Brisbane, Australia
| | - Ismael A. Kimirei
- Tanzania Fisheries Research Institute-Kigoma Center, Kigoma, Tanzania
| | - Peter J. Mumby
- Marine Spatial Ecology Laboratory and Australian Research Council Centre of Excellence for Coral Reef Studies, School of Biological Sciences, The University of Queensland, Brisbane, Australia
| | - Andrew D. Olds
- Australian Rivers Institute – Coast and Estuaries and School of Environment, Griffith University, Gold Coast, Australia
| | - Yunus D. Mgaya
- College of Natural and Applied Sciences, Department of Aquatic Science and Fisheries, University of Dar es Salaam, Dar es Salaam, Tanzania
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13
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Gillis LG, Ziegler AD, van Oevelen D, Cathalot C, Herman PMJ, Wolters JW, Bouma TJ. Tiny is mighty: seagrass beds have a large role in the export of organic material in the tropical coastal zone. PLoS One 2014; 9:e111847. [PMID: 25386853 PMCID: PMC4227657 DOI: 10.1371/journal.pone.0111847] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Accepted: 10/08/2014] [Indexed: 11/18/2022] Open
Abstract
Ecosystems in the tropical coastal zone exchange particulate organic matter (POM) with adjacent systems, but differences in this function among ecosystems remain poorly quantified. Seagrass beds are often a relatively small section of this coastal zone, but have a potentially much larger ecological influence than suggested by their surface area. Using stable isotopes as tracers of oceanic, terrestrial, mangrove and seagrass sources, we investigated the origin of particulate organic matter in nine mangrove bays around the island of Phuket (Thailand). We used a linear mixing model based on bulk organic carbon, total nitrogen and δ13C and δ15N and found that oceanic sources dominated suspended particulate organic matter samples along the mangrove-seagrass-ocean gradient. Sediment trap samples showed contributions from four sources oceanic, mangrove forest/terrestrial and seagrass beds where oceanic had the strongest contribution and seagrass beds the smallest. Based on ecosystem area, however, the contribution of suspended particulate organic matter derived from seagrass beds was disproportionally high, relative to the entire area occupied by mangrove forests, the catchment area (terrestrial) and seagrass beds. The contribution from mangrove forests was approximately equal to their surface area, whereas terrestrial contributions to suspended organic matter under contributed compared to their relative catchment area. Interestingly, mangrove forest contribution at 0 m on the transects showed a positive relationship with the exposed frontal width of the mangrove, indicating that mangrove forest exposure to hydrodynamic energy may be a controlling factor in mangrove outwelling. However we found no relationship between seagrass bed contribution and any physical factors, which we measured. Our results indicate that although seagrass beds occupy a relatively small area of the coastal zone, their role in the export of organic matter is disproportional and should be considered in coastal management especially with respect to their importance as a nutrient source for other ecosystems and organisms.
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Affiliation(s)
- Lucy G. Gillis
- Spatial Ecology Department, Royal Netherlands Institute for Sea Research (NIOZ), Yerseke, Zealand, The Netherlands
- * E-mail:
| | - Alan D. Ziegler
- Geography Department, National University of Singapore (NUS), Singapore, Singapore
| | - Dick van Oevelen
- Ecosystems Studies Department, Royal Netherlands Institute for Sea Research (NIOZ), Yerseke, Zealand, The Netherlands
| | - Cecile Cathalot
- Laboratoire Environnement Profond (LEP), French Research Institute for Exploitation of the Sea, Polouzane, Brittany, France
| | - Peter M. J. Herman
- Spatial Ecology Department, Royal Netherlands Institute for Sea Research (NIOZ), Yerseke, Zealand, The Netherlands
| | - Jan W. Wolters
- Department of Biology, University of Antwerp, Antwerp, Flanders, Belgium
| | - Tjeerd J. Bouma
- Spatial Ecology Department, Royal Netherlands Institute for Sea Research (NIOZ), Yerseke, Zealand, The Netherlands
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14
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Zavalloni M, Groeneveld RA, van Zwieten PAM. The role of spatial information in the preservation of the shrimp nursery function of mangroves: a spatially explicit bio-economic model for the assessment of land use trade-offs. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2014; 143:17-25. [PMID: 24833524 DOI: 10.1016/j.jenvman.2014.04.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2013] [Revised: 03/14/2014] [Accepted: 04/21/2014] [Indexed: 06/03/2023]
Abstract
Conversion to aquaculture affects the provision of important ecosystem services provided by mangrove ecosystems, and this effect depends strongly on the location of the conversion. We introduce in a bio-economic mathematical programming model relevant spatial elements that affect the provision of the nursery habitat service of mangroves: (1) direct or indirect connection of mangroves to watercourses; (2) the spatial allocation of aquaculture ponds; and (3) the presence of non-linear relations between mangrove extent and juvenile recruitment to wild shrimp populations. By tracing out the production possibilities frontier of wild and cultivated shrimp, the model assesses the role of spatial information in the trade-off between aquaculture and the nursery habitat function using spatial elements relevant to our model of a mangrove area in Ca Mau Province, Viet Nam. Results show that where mangrove forests have to coexist with shrimp aquaculture ponds, the inclusion of specific spatial information on ecosystem functions in considerations of land allocation can achieve aquaculture benefits while largely preserving the economic benefits generated by the nursery habitat function. However, if spatial criteria are ignored, ill-advised land allocation decisions can easily lead to a collapse of the mangrove's nursery function.
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Affiliation(s)
- Matteo Zavalloni
- Department of Agricultural Sciences, University of Bologna, Viale Fanin 50, 40127 Bologna, Italy.
| | - Rolf A Groeneveld
- Environmental Economics and Natural Resources Group, Wageningen University, PO Box 8130, 6700 EW Wageningen, The Netherlands.
| | - Paul A M van Zwieten
- Aquaculture and Fisheries Group, Wageningen University, PO Box 338, 6709 PG Wageningen, The Netherlands.
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