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Integrated ocean governance is needed in the Southwest Atlantic Ocean to foster fisheries, conservation and resilience to climate change. 西南大西洋需要综合海洋治理，以促进渔业、养护和应对气候变化的能力。

Discover Oceans Pub Date : 2026-01-01 Epub Date: 2026-03-31 DOI: 10.1007/s44289-026-00134-4

Juliano Palacios-Abrantes, Facundo Llompart, Luis Gustavo Cardoso, Omar Defeo, Ignacio Gianelli, Andrés J Jaureguizar, Priscila F M Lopes, José Angel A Perez, Natali I P Piccolo, Alberto R Piola, Andrei Polejack, Luciana F Prado, Martin Saraceno

{"title":"Integrated ocean governance is needed in the Southwest Atlantic Ocean to foster fisheries, conservation and resilience to climate change.","authors":"Juliano Palacios-Abrantes, Facundo Llompart, Luis Gustavo Cardoso, Omar Defeo, Ignacio Gianelli, Andrés J Jaureguizar, Priscila F M Lopes, José Angel A Perez, Natali I P Piccolo, Alberto R Piola, Andrei Polejack, Luciana F Prado, Martin Saraceno","doi":"10.1007/s44289-026-00134-4","DOIUrl":"10.1007/s44289-026-00134-4","url":null,"abstract":"The Southwest Atlantic Ocean (SWAO) is a globally important region, where diverse water masses converge and mix, regulating the Earth's climate while supporting productive fisheries and high marine biodiversity. Ecological connectivity is also substantial, with multiple species and ecosystems shared across multiple jurisdictions and international borders. However, despite historical efforts and more recent calls for regional management, the SWAO is one of the few large oceanic regions with no dedicated ocean governance body covering all shared resources. This disconnect is particularly alarming in the face of climate change, which is altering the distribution and abundance of fish stocks, shifting species ranges poleward, and intensifying uncertainty in marine resource management. A collaborative regional framework, rooted in ecosystem-based management, is urgently needed to foster sustainable management as well as bolster resilience to the impacts of climate change. As Brazil hosts a series of United Nations meetings on environmental topics, the region faces a decisive moment: either to remain reactive to external governance structures or to proactively design frameworks that reflect regional priorities, balance sovereignty concerns, and better integrate scientific evidence into decision-making. Thus, we invite decision makers, managers and scientists to take advantage of the political momentum in Latin America to advance integrated and multi-scale ocean governance, while strengthening ocean science diplomacy in the SWAO. This is a call to help navigate an uncertain future by addressing shared challenges and prioritizing ocean sustainability in the SWAO.","PeriodicalId":520972,"journal":{"name":"Discover Oceans","volume":"3 1","pages":"19"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13035874/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147597591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessing vulnerability of Arctic fish species to climate change. 评估北极鱼类对气候变化的脆弱性。

Discover Oceans Pub Date : 2025-01-01 Epub Date: 2025-07-31 DOI: 10.1007/s44289-025-00056-7

K J Sora, C C C Wabnitz, N S Steiner, U R Sumaila, C Hoover, A Niemi, L Loseto, E V Lea, C C Breiter, J Palacios-Abrantes, G Reygondeau, P Farnole, T Sou, W W L Cheung

{"title":"Assessing vulnerability of Arctic fish species to climate change.","authors":"K J Sora, C C C Wabnitz, N S Steiner, U R Sumaila, C Hoover, A Niemi, L Loseto, E V Lea, C C Breiter, J Palacios-Abrantes, G Reygondeau, P Farnole, T Sou, W W L Cheung","doi":"10.1007/s44289-025-00056-7","DOIUrl":"10.1007/s44289-025-00056-7","url":null,"abstract":"Climate change is impacting Arctic marine ecosystems at faster rates than the global average, challenging the management and conservation of biodiversity and living marine resources. This study examined the climate risks and vulnerabilities of 21 Arctic fish species occurring in the western Canadian Arctic using a fuzzy logic approach. Identified climatic hazards to marine species and their habitats are increasing temperature, decreasing sea ice cover, freshening, decreasing oxygen concentration, and acidification. The nature of these hazards included changes in mean conditions by 2050 (2041-2060), compared to the historical period (1979-2015 average) simulated from a regional coupled ice-ocean biogeochemical model and two coupled Earth system models under low and high emissions scenarios. A spatially-explicit algorithm was used to assess the risk and vulnerability in the Beaufort Sea shelf and slope and Amundsen Gulf (BS-AG) based on the species' biological traits, biogeography and their exposure to climatic hazards. The results indicated high to very high exposure and risk of climate impacts across the ecosystem variables. Specifically, shallow areas were projected to be simultaneously exposed to more intense warming, reduced sea ice coverage, freshening, and acidification relative to the regional averages. In addition, for species occurring in the BS-AG, low adaptability and high sensitivity to climate hazards was identified. These applied tools and evaluations can inform marine spatial planning and climate adaptation efforts to help achieve conservation objectives and sustain ecosystem and community health in a changing Arctic climate.Supplementary information: The online version contains supplementary material available at 10.1007/s44289-025-00056-7.","PeriodicalId":520972,"journal":{"name":"Discover Oceans","volume":"2 1","pages":"32"},"PeriodicalIF":0.0,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12327352/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144796641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0