Vulnerability of Eastern Tropical Pacific chondrichthyan fish to climate change.

Autor: Cerutti-Pereyra F; Charles Darwin Foundation, Galápagos, Ecuador., Drenkard EJ; NOAA/OAR/GFDL, Princeton, New Jersey, USA., Espinoza M; Centro de Investigación en Ciencias del Mar y Limnología, Universidad de Costa Rica, San José, Costa Rica.; MigraMar, Olema, California, USA., Finucci B; National Institute of Water and Atmospheric Research, Wellington, New Zealand., Galván-Magaña F; Instituto Politécnico Nacional-Centro Interdisciplinario de Ciencias Marinas, La Paz, Baja California Sur, Mexico., Hacohen-Domené A; Universidad del Valle de Guatemala, Guatemala City, Guatemala., Hearn A; MigraMar, Olema, California, USA.; Universidad San Francisco de Quito, Galápagos, Ecuador., Hoyos-Padilla ME; MigraMar, Olema, California, USA.; Pelagios-Kakunjá A.C., La Paz, Baja California Sur, Mexico., Ketchum JT; MigraMar, Olema, California, USA.; Pelagios-Kakunjá A.C., La Paz, Baja California Sur, Mexico., Mejía-Falla PA; Wildlife Conservation Society-WCS Colombia, Cali, Colombia.; Fundación colombiana para la investigación y conservación de tiburones y rayas-SQUALUS, Cali, Colombia., Moya-Serrano AV; Charles Darwin Foundation, Galápagos, Ecuador., Navia AF; Fundación colombiana para la investigación y conservación de tiburones y rayas-SQUALUS, Cali, Colombia., Pazmiño DA; MigraMar, Olema, California, USA.; Universidad San Francisco de Quito, Galápagos, Ecuador., Ramírez-Macías D; Conexiones Terramar A.C. Whale Shark Mexico, La Paz, Baja California Sur, Mexico., Rummer JL; James Cook University, Townsville, Queensland, Australia., Salinas-de-León P; Charles Darwin Foundation, Galápagos, Ecuador.; Save Our Seas Foundation Shark Research Center and Guy Harvey Research Institute, Nova Southeastern University, Dania Beach, Florida, USA., Sosa-Nishizaki O; Centro de Investigación Científica y de Educación Superior de Ensenada, Baja California, Carretera Ensenada-Tijuana, Ensenada, Baja California, Mexico., Stock C; NOAA/OAR/GFDL, Princeton, New Jersey, USA., Chin A; James Cook University, Townsville, Queensland, Australia.
Jazyk: angličtina
Zdroj: Global change biology [Glob Chang Biol] 2024 Jul; Vol. 30 (7), pp. e17373.
DOI: 10.1111/gcb.17373
Abstrakt: Climate change is an environmental emergency threatening species and ecosystems globally. Oceans have absorbed about 90% of anthropogenic heat and 20%-30% of the carbon emissions, resulting in ocean warming, acidification, deoxygenation, changes in ocean stratification and nutrient availability, and more severe extreme events. Given predictions of further changes, there is a critical need to understand how marine species will be affected. Here, we used an integrated risk assessment framework to evaluate the vulnerability of 132 chondrichthyans in the Eastern Tropical Pacific (ETP) to the impacts of climate change. Taking a precautionary view, we found that almost a quarter (23%) of the ETP chondrichthyan species evaluated were highly vulnerable to climate change, and much of the rest (76%) were moderately vulnerable. Most of the highly vulnerable species are batoids (77%), and a large proportion (90%) are coastal or pelagic species that use coastal habitats as nurseries. Six species of batoids were highly vulnerable in all three components of the assessment (exposure, sensitivity and adaptive capacity). This assessment indicates that coastal species, particularly those relying on inshore nursery areas are the most vulnerable to climate change. Ocean warming, in combination with acidification and potential deoxygenation, will likely have widespread effects on ETP chondrichthyan species, but coastal species may also contend with changes in freshwater inputs, salinity, and sea level rise. This climate-related vulnerability is compounded by other anthropogenic factors, such as overfishing and habitat degradation already occurring in the region. Mitigating the impacts of climate change on ETP chondrichthyans involves a range of approaches that include addressing habitat degradation, sustainability of exploitation, and species-specific actions may be required for species at higher risk. The assessment also highlighted the need to further understand climate change's impacts on key ETP habitats and processes and identified knowledge gaps on ETP chondrichthyan species.
(© 2024 The Author(s). Global Change Biology published by John Wiley & Sons Ltd.)
Databáze: MEDLINE
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