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Dedman S, Moxley JH, Papastamatiou YP, Braccini M, Caselle JE, Chapman DD, Cinner JE, Dillon EM, Dulvy NK, Dunn RE, Espinoza M, Harborne AR, Harvey ES, Heupel MR, Huveneers C, Graham NAJ, Ketchum JT, Klinard NV, Kock AA, Lowe CG, MacNeil MA, Madin EMP, McCauley DJ, Meekan MG, Meier AC, Simpfendorfer CA, Tinker MT, Winton M, Wirsing AJ, Heithaus MR. Ecological roles and importance of sharks in the Anthropocene Ocean. Science 2024; 385:adl2362. [PMID: 39088608 DOI: 10.1126/science.adl2362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 05/17/2024] [Indexed: 08/03/2024]
Abstract
In ecosystems, sharks can be predators, competitors, facilitators, nutrient transporters, and food. However, overfishing and other threats have greatly reduced shark populations, altering their roles and effects on ecosystems. We review these changes and implications for ecosystem function and management. Macropredatory sharks are often disproportionately affected by humans but can influence prey and coastal ecosystems, including facilitating carbon sequestration. Like terrestrial predators, sharks may be crucial to ecosystem functioning under climate change. However, large ecosystem effects of sharks are not ubiquitous. Increasing human uses of oceans are changing shark roles, necessitating management consideration. Rebuilding key populations and incorporating shark ecological roles, including less obvious ones, into management efforts are critical for retaining sharks' functional value. Coupled social-ecological frameworks can facilitate these efforts.
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Affiliation(s)
- Simon Dedman
- Institute of Environment, Department of Biological Sciences, Florida International University, North Miami, FL 33181, USA
| | - Jerry H Moxley
- Institute of Environment, Department of Biological Sciences, Florida International University, North Miami, FL 33181, USA
| | - Yannis P Papastamatiou
- Institute of Environment, Department of Biological Sciences, Florida International University, North Miami, FL 33181, USA
| | - Matias Braccini
- Western Australian Fisheries and Marine Research Laboratories, Department of Primary Industries and Regional Development, North Beach, WA 6920, Australia
| | - Jennifer E Caselle
- Marine Science Institute, University of California, Santa Barbara, CA 93106, USA
| | - Demian D Chapman
- Sharks and Rays Conservation Research Program, Mote Marine Laboratory, Sarasota, FL 34236, USA
| | - Joshua Eli Cinner
- Thriving Oceans Research Hub, School of Geosciences, University of Sydney, Camperdown, NSW 2006, Australia
| | - Erin M Dillon
- Department of Ecology, Evolution, and Marine Biology, University of California, Santa Barbara, CA 93106, USA
- Smithsonian Tropical Research Institute, Balboa, Republic of Panama
| | - Nicholas K Dulvy
- Earth to Ocean Research Group, Department of Biological Sciences, Simon Fraser University, 8888 University Drive, Burnaby, BC V5A 1S6, Canada
| | - Ruth Elizabeth Dunn
- Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, UK
- The Lyell Centre, Heriot-Watt University, Edinburgh EH14 4BA, UK
| | - Mario Espinoza
- Centro de Investigación en Ciencias del Mar y Limnología, Universidad de Costa Rica, San Pedro de Montes de Oca, San José 2060-11501, Costa Rica
- Escuela de Biología, Universidad de Costa Rica, San Pedro de Montes de Oca, San José 2060-11501, Costa Rica
- MigraMar, Bodega Bay, CA 94923, USA
| | - Alastair R Harborne
- Institute of Environment, Department of Biological Sciences, Florida International University, North Miami, FL 33181, USA
| | - Euan S Harvey
- School of Molecular and Life Sciences, Curtin University, WA, Australia
| | - Michelle R Heupel
- Institute of Marine and Antarctic Studies, University of Tasmania, Hobart, TAS 7000, Australia
- Australian Institute of Marine Science, Townsville, QLD, Australia
- Integrated Marine Observing System, University of Tasmania, Hobart, TAS, Australia
| | - Charlie Huveneers
- College of Science and Engineering, Flinders University, Adelaide, SA, Australia
| | | | - James T Ketchum
- MigraMar, Bodega Bay, CA 94923, USA
- Pelagios Kakunjá, La Paz, Baja California Sur, Mexico
- Centro de Investigaciones Biológicas del Noroeste (CIBNOR), La Paz, Baja California Sur, Mexico
| | - Natalie V Klinard
- Department of Biology, Dalhousie University, Halifax, Nova Scotia, NS B3H 4R2, Canada
| | - Alison A Kock
- Cape Research Centre, South African National Parks, Cape Town, South Africa
- South African Institute for Aquatic Biodiversity (SAIAB), Makhanda (Grahamstown), South Africa
| | - Christopher G Lowe
- Department of Biological Sciences, California State University Long Beach, Long Beach, CA 90840, USA
| | - M Aaron MacNeil
- Department of Biology, Dalhousie University, Halifax, Nova Scotia, NS B3H 4R2, Canada
| | - Elizabeth M P Madin
- Hawai'i Institute of Marine Biology, University of Hawai'i at Mānoa, Kāne'ohe, HI 96744, USA
| | - Douglas J McCauley
- Marine Science Institute, University of California, Santa Barbara, CA 93106, USA
- Department of Ecology, Evolution, and Marine Biology, University of California, Santa Barbara, CA 93106, USA
| | - Mark G Meekan
- Australian Institute of Marine Science, Indian Ocean Marine Research Centre, Crawley, WA, Australia
| | - Amelia C Meier
- Hawai'i Institute of Marine Biology, University of Hawai'i at Mānoa, Kāne'ohe, HI 96744, USA
| | - Colin A Simpfendorfer
- Institute of Marine and Antarctic Studies, University of Tasmania, Hobart, TAS 7000, Australia
- College of Science and Engineering, James Cook University, 1 James Cook Drive, Townsville, QLD 4811, Australia
| | - M Tim Tinker
- Department of Ecology and Evolutionary Biology, University of California, Santa Cruz, Santa Cruz, CA 95060, USA
- US Geological Survey, Western Ecological Research Center, Santa Cruz, CA, USA
| | - Megan Winton
- Atlantic White Shark Conservancy, North Chatham, MA 02650, USA
| | - Aaron J Wirsing
- School of Environmental and Forest Sciences, University of Washington, Seattle, WA 98195, USA
| | - Michael R Heithaus
- Institute of Environment, Department of Biological Sciences, Florida International University, North Miami, FL 33181, USA
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2
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Leonetti FL, Bottaro M, Giglio G, Sperone E. Studying Chondrichthyans Using Baited Remote Underwater Video Systems: A Review. Animals (Basel) 2024; 14:1875. [PMID: 38997987 PMCID: PMC11240523 DOI: 10.3390/ani14131875] [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: 03/29/2024] [Revised: 06/20/2024] [Accepted: 06/21/2024] [Indexed: 07/14/2024] Open
Abstract
Cartilaginous fish face significant threats due to overfishing and slow reproductive rates, leading to rapid declines in their populations globally. Traditional capture-based surveys, while valuable for gathering ecological information, pose risks to the health and survival of these species. Baited Remote Underwater Video Systems (BRUVS) offer a non-invasive alternative, allowing for standardized surveys across various habitats with minimal disturbance to marine life. This study presents a comprehensive review of BRUVS applications in studying cartilaginous fish, examining 81 peer-reviewed papers spanning from 1990 to 2023. The analysis reveals a significant increase in BRUVS usage over the past three decades, particularly in Australia, South Africa, and Central America. The most common BRUVS configurations include benthic setups, mono-camera systems, and the use of fish from the Clupeidae and Scombridae families as bait. BRUVS have been instrumental in studying 195 chondrichthyan species, providing insights into up to thirteen different aspects of the life histories. Moreover, BRUVS facilitate the monitoring of endangered and data-deficient species, contributing crucial data for conservation efforts. Overall, this study underscores the value of BRUVS as a powerful tool for studying and conserving cartilaginous fish populations worldwide.
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Affiliation(s)
| | - Massimiliano Bottaro
- Genoa Marine Centre, Department of Integrative Marine Ecology (EMI), Stazione Zoologica Anton Dohrn, Italian National Institute for Marine Biology, Ecology and Biotechnology, Villa del Principe, Piazza del Principe 4, 16126 Genoa, Italy
| | - Gianni Giglio
- Department of Biology, Ecology and Earth Sciences, University of Calabria, 87036 Rende, Italy
| | - Emilio Sperone
- Department of Biology, Ecology and Earth Sciences, University of Calabria, 87036 Rende, Italy
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Espinoza M, Quesada-Perez F, Madrigal-Mora S, Naranjo-Elizondo B, Clarke TM, Cortés J. A decade of submersible observations revealed temporal trends in elasmobranchs in a remote island of the Eastern Tropical Pacific Ocean. Sci Rep 2024; 14:13786. [PMID: 38877056 PMCID: PMC11178919 DOI: 10.1038/s41598-024-64157-7] [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: 10/30/2023] [Accepted: 06/05/2024] [Indexed: 06/16/2024] Open
Abstract
No-take marine protected areas (MPAs) can mitigate the effects of overfishing, climate change and habitat degradation, which are leading causes of an unprecedented global biodiversity crisis. However, assessing the effectiveness of MPAs, especially in remote oceanic islands, can be logistically challenging and often restricted to relatively shallow and accessible environments. Here, we used a long-term dataset (2010-2019) collected by the DeepSee submersible of the Undersea Hunter Group that operates in Isla del Coco National Park, Costa Rica, to (1) determine the frequency of occurrence of elasmobranch species at two depth intervals (50-100 m; 300-400 m), and (2) investigate temporal trends in the occurrence of common elasmobranch species between 2010 and 2019, as well as potential drivers of the observed changes. Overall, we observed 17 elasmobranch species, 15 of which were recorded on shallow dives (50-100 m) and 11 on deep dives (300-400 m). We found a decreasing trend in the probability of occurrence of Carcharhinus falciformis over time (2010-2019), while other species (e.g. Taeniurops meyeni, Sphyrna lewini, Carcharhinus galapagensis, Triaenodon obesus, and Galeocerdo cuvier) showed an increasing trend. Our study suggests that some species like S. lewini may be shifting their distributions towards deeper waters in response to ocean warming but may also be sensitive to low oxygen levels at greater depths. These findings highlight the need for regional 3D environmental information and long-term deepwater surveys to understand the extent of shark and ray population declines in the ETP and other regions, as most fishery-independent surveys from data-poor countries have been limited to relatively shallow waters.
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Affiliation(s)
- Mario Espinoza
- Centro de Investigación en Ciencias del Mar y Limnología, Universidad de Costa Rica, San Pedro, San José, 11501-2060, Costa Rica.
- Escuela de Biología, Universidad de Costa Rica, San Pedro, San José, 11501-2060, Costa Rica.
- MigraMar, Bodega Bay, CA, 94923, USA.
| | - Fabio Quesada-Perez
- Centro de Investigación en Ciencias del Mar y Limnología, Universidad de Costa Rica, San Pedro, San José, 11501-2060, Costa Rica
| | | | - Beatriz Naranjo-Elizondo
- Centro de Investigación en Ciencias del Mar y Limnología, Universidad de Costa Rica, San Pedro, San José, 11501-2060, Costa Rica
- MigraMar, Bodega Bay, CA, 94923, USA
- Centro de Investigación en Estructuras Microscópicas (CIEMic), Universidad de Costa Rica, San Pedro, San José, 11501-2060, Costa Rica
- Pelagos Okeanos, Moravia, San José, 11401, Costa Rica
| | - Tayler M Clarke
- Changing Ocean Research Unit, Institute for the Oceans and Fisheries, University of British Columbia, AERL, 2202 Main Mall, Vancouver, BC, V6T 1Z4, Canada
| | - Jorge Cortés
- Centro de Investigación en Ciencias del Mar y Limnología, Universidad de Costa Rica, San Pedro, San José, 11501-2060, Costa Rica
- Escuela de Biología, Universidad de Costa Rica, San Pedro, San José, 11501-2060, Costa Rica
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Gradients of Variation in the At-Vessel Mortality Rate between Twelve Species of Sharks and Skates Sampled through a Fishery-Independent Trawl Survey in the Asinara Gulf (NW Mediterranean Sea). BIOLOGY 2023; 12:biology12030363. [PMID: 36979055 PMCID: PMC10044918 DOI: 10.3390/biology12030363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 02/19/2023] [Accepted: 02/20/2023] [Indexed: 03/03/2023]
Abstract
Elasmobranchs are priority species for conservation due to their rapid decline determined by the unbalanced struggle between a fragile bio-ecology and strong anthropogenic impacts, such as bycatch from professional fishing. In this context, measuring species resistance to catch of poorly selective gear is of paramount importance. During June–October 2022, five experimental fishing campaigns were carried out in the Asinara Gulf (northern Sardinia) through 35 geographically and bathymetrically representative hauls of an area between 30 and 600 m in depth. Skates prevailed over sharks in the number of species, with seven and five species, respectively. We first evaluated the status of each individual with respect to stress due to the trawl’s catch using a three-graded scale. We also recorded individual biometrics (total and disk length, weight and sex, and maturity for males) on board by implementing the best practices in manipulating individuals for physiological recovery and release at sea. After capture, skates resulted in generally better conditions than sharks, although deepwater species of both groups exhibited a worse state than coastal species. The estimated vitality rates also depended on the size of the individuals. This work provides standardized data on the intermingled effect of size, species type, and inhabited depth on the resistance response of some elasmobranch species against capture by trawl fishery activities.
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5
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López-González LA, Cruz-Motta JJ, Rosario A, Hanke M, Appeldoorn R. Comparison of Underwater Visual Census (UVC), Underwater Remote Video (RUV), and Handline Used by Fisheries-Independent Programs to Assess Reef Fish. CARIBB J SCI 2022. [DOI: 10.18475/cjos.v52i2.a13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Leysa A. López-González
- Department of Marine Sciences, University of Puerto Rico Mayagüez Campus, Mayagüez, Puerto Rico
| | - Juan J. Cruz-Motta
- Department of Marine Sciences, University of Puerto Rico Mayagüez Campus, Mayagüez, Puerto Rico
| | - Aida Rosario
- Division of Management and Investigation of Commercial Fisheries, Department of Natural and Environmental Resources, San Juan, Puerto Rico
| | - Marcos Hanke
- Caribbean Fishery Management Council, San Juan, Puerto Rico
| | - Richard Appeldoorn
- Department of Marine Sciences, University of Puerto Rico Mayagüez Campus, Mayagüez, Puerto Rico
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6
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Assessing the Stock Dynamics of Elasmobranchii off the Southern Coast of Sicily by Using Trawl Survey Data. FISHES 2022. [DOI: 10.3390/fishes7030136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
Elasmobranchii (sharks and rays), which have peculiar and vulnerable life-history traits, are highly threatened by fishing activities. Indeed, between 53% and 71% of Mediterranean elasmobranch species are at risk of extinction. In this context, using the abundance MSY (AMSY) model, the present study provides an assessment of 20 batoids and 16 shark species in the Strait of Sicily, sampled during a bottom trawl survey from 1995 to 2020. Overall, the outputs underline a progressively improving condition for shark and ray assemblages of both shelf and eurybathic zones. As for slope-dwelling species, a horseshoe-shaped dynamic, characterized by a progressive decrease in relative harvesting pressure and an increase in relative biomass followed by an increase in fishing pressure and decrease in biomass, was detected. The dynamics of the Elasmobranchii living in the Strait of Sicily appear to be affected by changes in the fishing patterns of trawlers, showing a shift from shallow water to bathyal fishing grounds and targeting deep-water red shrimp. In this context, it seems wise to limit the impact of deep-water fisheries on Elasmobranchii by reducing fishing efforts and implementing ad hoc management measures aimed at safeguarding these vulnerable species.
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Jac R, Höffle H, Albretsen J, Jakobsdóttir K, Staby A, Søvik G, Junge C. Of three sharks and one chimaera: varied habitat preferences across a latitudinal range revealed by coastal and offshore surveys. JOURNAL OF FISH BIOLOGY 2022; 100:660-674. [PMID: 34931705 DOI: 10.1111/jfb.14979] [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: 08/28/2021] [Revised: 12/15/2021] [Accepted: 12/16/2021] [Indexed: 06/14/2023]
Abstract
Using national and international research survey data and applying a combination of models and mapping tools, this study revealed temperature and depth as the crucial environmental drivers of both the distribution and the abundance of four benthopelagic chondrichthyans inhabiting Norwegian and Icelandic waters: rabbitfish (Chimaera monstrosa), velvet-belly lanternshark (Etmopterus spinax), blackmouth catshark (Galeus melastomus) and spurdog (Squalus acanthias). C. monstrosa and E. spinax seem to prefer similar spatial and ecological habitats, that is deep and cold waters. In contrast, G. melastomus and S. acanthias both prefer similar ecological habitats, that is warmer and shallower waters; nonetheless, they exhibit a different spatial distribution pattern. The species' varied habitat and spatial preferences may lead to different levels of exposure to fishing activities and associated by-catch risks. Findings of the species' spatial distributions and their driving forces are expected to inform the sustainable management of these species and the ecosystems they inhabit.
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Affiliation(s)
- Romaric Jac
- Havforskningsinstituttet (Institute of Marine Research, IMR), Norway
- Institut Universitaire Européen de la Mer, Plouzané, France
| | - Hannes Höffle
- Havforskningsinstituttet (Institute of Marine Research, IMR), Norway
| | - Jon Albretsen
- Havforskningsinstituttet (Institute of Marine Research, IMR), Norway
| | - Klara Jakobsdóttir
- Hafrannsóknastofnun (Marine and Freshwater Research Institute, MFRI), Demersal Division, Hafnarfjörður, Iceland
| | - Arved Staby
- Havforskningsinstituttet (Institute of Marine Research, IMR), Norway
| | - Guldborg Søvik
- Havforskningsinstituttet (Institute of Marine Research, IMR), Norway
| | - Claudia Junge
- Havforskningsinstituttet (Institute of Marine Research, IMR), Norway
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Tuya F, Aguilar R, Espino F, Bosch NE, Meyers EKM, Jiménez‐Alvarado D, Castro JJ, Otero‐Ferrer F, Haroun R. Differences in the occurrence and abundance of batoids across an oceanic archipelago using complementary data sources: Implications for conservation. Ecol Evol 2021; 11:16704-16715. [PMID: 34938467 PMCID: PMC8668743 DOI: 10.1002/ece3.8290] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 10/11/2021] [Accepted: 10/14/2021] [Indexed: 11/05/2022] Open
Abstract
Batoids, distributed from shallow to abyssal depths, are considerably vulnerable to anthropogenic threats. Data deficiencies on the distribution patterns of batoids, however, challenge their effective management and conservation. In this study, we took advantage of the particular geological and geomorphological configuration of the Canary Islands, across an east-to-west gradient in the eastern Atlantic Ocean, to assess whether patterns in the occurrence and abundance of batoids varied between groups of islands (western, central, and eastern). Data were collected from shallow (<40 m, via underwater visual counts and by a local community science program) and deep waters (60-700 m, via ROV deployments). Eleven species of batoids, assessed by the IUCN Red List of Threatened Species, were registered, including three "Critically Endangered" (Aetomylaeus bovinus, Dipturus batis, and Myliobatis aquila), three "Endangered" (Gymnura altavela, Mobula mobular, and Rostroraja alba), two "Vulnerable" (Dasyatis pastinaca and Raja maderenseis), and two "Data Deficient" (Taeniurops grabata and Torpedo marmorata). Also, a "Least Concern" species (Bathytoshia lata) was observed. Overall, batoids were ~1 to 2 orders of magnitude more abundant in the central and eastern islands, relative to the western islands. This pattern was consistent among the three sources of data and for both shallow and deep waters. This study, therefore, shows differences in the abundance of batoids across an oceanic archipelago, likely related to varying insular shelf area, availability of habitats, and proximity to the nearby continental (African) mass. Large variation in population abundances among islands suggests that "whole" archipelago management strategies are unlikely to provide adequate conservation. Instead, management plans should be adjusted individually per island and complemented with focused research to fill data gaps on the spatial use and movements of these iconic species.
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Affiliation(s)
- Fernando Tuya
- Grupo en Biodiversidad y ConservaciónIU‐ECOAQUAUniversidad de Las Palmas de Gran CanariaLas PalmasSpain
| | | | - Fernando Espino
- Grupo en Biodiversidad y ConservaciónIU‐ECOAQUAUniversidad de Las Palmas de Gran CanariaLas PalmasSpain
| | - Nestor E. Bosch
- School of Biological SciencesOceans InstituteUniversity of Western AustraliaCrawleyWestern AustraliaAustralia
| | | | - David Jiménez‐Alvarado
- Grupo en Biodiversidad y ConservaciónIU‐ECOAQUAUniversidad de Las Palmas de Gran CanariaLas PalmasSpain
| | - Jose J. Castro
- Grupo en Biodiversidad y ConservaciónIU‐ECOAQUAUniversidad de Las Palmas de Gran CanariaLas PalmasSpain
| | - Francisco Otero‐Ferrer
- Grupo en Biodiversidad y ConservaciónIU‐ECOAQUAUniversidad de Las Palmas de Gran CanariaLas PalmasSpain
| | - Ricardo Haroun
- Grupo en Biodiversidad y ConservaciónIU‐ECOAQUAUniversidad de Las Palmas de Gran CanariaLas PalmasSpain
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Eisele MH, Madrigal-Mora S, Espinoza M. Drivers of reef fish assemblages in an upwelling region from the Eastern Tropical Pacific Ocean. JOURNAL OF FISH BIOLOGY 2021; 98:1074-1090. [PMID: 33274754 DOI: 10.1111/jfb.14639] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 12/01/2020] [Indexed: 06/12/2023]
Abstract
Reef fish assemblages are exposed to a wide range of anthropogenic threats as well as chronic natural disturbances. In upwelling regions, for example, there is a seasonal influx of cool nutrient-rich waters that may shape the structure and composition of reef fish assemblages. Given that climate change may disrupt the natural oceanographic processes by altering the frequency and strength of natural disturbances, understanding how fish assemblages respond to upwelling events is essential to effectively manage reef ecosystems under changing ocean conditions. This study used the baited remote underwater video stations (BRUVS) and the traditional underwater visual census (UVC) to investigate the spatiotemporal patterns of reef fish assemblages in an upwelling region in the North Pacific of Costa Rica. A total of 183 reef fish species from 60 families were recorded, of which 166 species were detected using BRUVS and 122 using UVC. Only 66% of all species were detected using both methods. This study showed that the upwelling had an important role in shaping reef fish assemblages in this region, but there was also a significant interaction between upwelling and location. In addition, other drivers such as habitat complexity and habitat composition had an effect on reef fish abundances and species. To authors' knowledge, this is the first study in the Eastern Tropical Pacific that combines BRUVS and UVC to monitor reef fish assemblages in an upwelling region, which provides more detailed information to assess the state of reef ecosystems in response to multiple threats and changing ocean conditions.
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Affiliation(s)
- Marius H Eisele
- Evolutionary Ecology and Conservation Genomics, Faculty of Natural Sciences, Ulm University, Ulm, Germany
- Computer Science, Faculty of Science, University of Tübingen, Tübingen, Germany
| | - Sergio Madrigal-Mora
- Centro de Investigación en Ciencias del Mar y Limnología (CIMAR), Universidad de Costa Rica, San José, Costa Rica
- Escuela de Biología, Universidad de Costa Rica, San José, Costa Rica
| | - Mario Espinoza
- Centro de Investigación en Ciencias del Mar y Limnología (CIMAR), Universidad de Costa Rica, San José, Costa Rica
- Escuela de Biología, Universidad de Costa Rica, San José, Costa Rica
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