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Sani T, Prada F, Radi G, Caroselli E, Falini G, Dubinsky Z, Goffredo S. Ocean warming and acidification detrimentally affect coral tissue regeneration at a Mediterranean CO 2 vent. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 906:167789. [PMID: 37838040 DOI: 10.1016/j.scitotenv.2023.167789] [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: 07/10/2023] [Revised: 09/30/2023] [Accepted: 10/10/2023] [Indexed: 10/16/2023]
Abstract
Among the main phenomena that are causing significant changes in ocean waters are warming and acidification, largely due to anthropogenic activities. Growing evidence suggests that climate change is having more substantial and rapid effects on marine communities than on terrestrial ones, triggering several physiological responses in these organisms, including in corals. Here we investigated, for first time in the field, the combined effect of increasing seawater acidification and warming on tissue regeneration rate of three Mediterranean scleractinian coral species characterized by different trophic strategies and growth modes. Balanophyllia europaea (solitary, zooxanthellate), Leptopsammia pruvoti (solitary, non-zooxanthellate) and Astroides calycularis (colonial, non-zooxanthellate) specimens were transplanted, during a cold, intermediate, and warm period, along a natural pH gradient generated by an underwater volcanic crater at Panarea Island (Mediterranean Sea, Italy), characterized by continuous and localized CO2 emissions at ambient temperature. Our results show a decrease in regenerative capacity, especially in the zooxanthellate species, with increasing seawater temperature and acidification, with demonstrated species-specific differences. This finding suggests that increasing seawater temperature and acidification could have a compounding effect on coral regeneration following injury, potentially hindering the capacity of corals to recover following physical disturbance under predicted climate change.
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Affiliation(s)
- Teresa Sani
- Marine Science Group, Department of Biological, Geological and Environmental Sciences, University of Bologna, Via F. Selmi 3, 40126 Bologna, Italy; Fano Marine Center, The Inter-Institute Center for Research on Marine Biodiversity, Resources and Biotechnologies, Viale Adriatico 1/N, 61032 Fano, Italy
| | - Fiorella Prada
- Marine Science Group, Department of Biological, Geological and Environmental Sciences, University of Bologna, Via F. Selmi 3, 40126 Bologna, Italy; Department of Marine and Coastal Sciences, Rutgers, The State University of New Jersey, New Brunswick, NJ 08901, USA
| | - Giulia Radi
- Marine Science Group, Department of Biological, Geological and Environmental Sciences, University of Bologna, Via F. Selmi 3, 40126 Bologna, Italy
| | - Erik Caroselli
- Marine Science Group, Department of Biological, Geological and Environmental Sciences, University of Bologna, Via F. Selmi 3, 40126 Bologna, Italy; Fano Marine Center, The Inter-Institute Center for Research on Marine Biodiversity, Resources and Biotechnologies, Viale Adriatico 1/N, 61032 Fano, Italy
| | - Giuseppe Falini
- Department of Chemistry "Giacomo Ciamician", University of Bologna, 40126 Bologna, Italy; Fano Marine Center, The Inter-Institute Center for Research on Marine Biodiversity, Resources and Biotechnologies, Viale Adriatico 1/N, 61032 Fano, Italy
| | - Zvy Dubinsky
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 52900, Israel
| | - Stefano Goffredo
- Marine Science Group, Department of Biological, Geological and Environmental Sciences, University of Bologna, Via F. Selmi 3, 40126 Bologna, Italy; Fano Marine Center, The Inter-Institute Center for Research on Marine Biodiversity, Resources and Biotechnologies, Viale Adriatico 1/N, 61032 Fano, Italy.
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Koehn LE, Nelson LK, Samhouri JF, Norman KC, Jacox MG, Cullen AC, Fiechter J, Pozo Buil M, Levin PS. Social-ecological vulnerability of fishing communities to climate change: A U.S. West Coast case study. PLoS One 2022; 17:e0272120. [PMID: 35976855 PMCID: PMC9385011 DOI: 10.1371/journal.pone.0272120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Accepted: 07/12/2022] [Indexed: 11/18/2022] Open
Abstract
Climate change is already impacting coastal communities, and ongoing and future shifts in fisheries species productivity from climate change have implications for the livelihoods and cultures of coastal communities. Harvested marine species in the California Current Large Marine Ecosystem support U.S. West Coast communities economically, socially, and culturally. Ecological vulnerability assessments exist for individual species in the California Current but ecological and human vulnerability are linked and vulnerability is expected to vary by community. Here, we present automatable, reproducible methods for assessing the vulnerability of U.S. West Coast fishing dependent communities to climate change within a social-ecological vulnerability framework. We first assessed the ecological risk of marine resources, on which fishing communities rely, to 50 years of climate change projections. We then combined this with the adaptive capacity of fishing communities, based on social indicators, to assess the potential ability of communities to cope with future changes. Specific communities (particularly in Washington state) were determined to be at risk to climate change mainly due to economic reliance on at risk marine fisheries species, like salmon, hake, or sea urchins. But, due to higher social adaptive capacity, these communities were often not found to be the most vulnerable overall. Conversely, certain communities that were not the most at risk, ecologically and economically, ranked in the category of highly vulnerable communities due to low adaptive capacity based on social indicators (particularly in Southern California). Certain communities were both ecologically at risk due to catch composition and socially vulnerable (low adaptive capacity) leading to the highest tier of vulnerability. The integration of climatic, ecological, economic, and societal data reveals that factors underlying vulnerability are variable across fishing communities on the U.S West Coast, and suggests the need to develop a variety of well-aligned strategies to adapt to the ecological impacts of climate change.
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Affiliation(s)
- Laura E. Koehn
- School of Environmental and Forest Sciences, University of Washington, Seattle, WA, United States of America
- * E-mail:
| | - Laura K. Nelson
- School of Environmental and Forest Sciences, University of Washington, Seattle, WA, United States of America
| | - Jameal F. Samhouri
- Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Seattle, WA, United States of America
| | - Karma C. Norman
- Northwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Seattle, WA, United States of America
| | - Michael G. Jacox
- Southwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Monterey, CA, United States of America
| | - Alison C. Cullen
- Evans School of Public Policy and Governance, University of Washington, Seattle, WA, United States of America
| | - Jerome Fiechter
- Ocean Sciences Department, University of California at Santa Cruz, Santa Cruz, CA, United States of America
| | - Mercedes Pozo Buil
- Southwest Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, Monterey, CA, United States of America
- Institute of Marine Sciences, University of California Santa Cruz, Santa Cruz, CA, United States of America
| | - Phillip S. Levin
- School of Environmental and Forest Sciences, University of Washington, Seattle, WA, United States of America
- The Nature Conservancy in Washington, Seattle, WA, United States of America
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Hillis D, Gustas R, Pauly D, Cheung WWL, Salomon AK, McKechnie I. A palaeothermometer of ancient Indigenous fisheries reveals increases in mean temperature of the catch over five millennia. ENVIRONMENTAL BIOLOGY OF FISHES 2022; 105:1381-1397. [PMID: 36313613 PMCID: PMC9592643 DOI: 10.1007/s10641-022-01243-7] [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: 10/05/2021] [Accepted: 03/14/2022] [Indexed: 06/16/2023]
Abstract
UNLABELLED Climate change is altering the distribution and composition of marine fish populations globally, which presents substantial risks to the social and economic well-being of humanity. While deriving long-term climatic baselines is an essential step for detecting and attributing the magnitude of climate change and its impacts, these baselines tend to be limited to historical datasets and palaeoecological sediment records. Here, we develop a method for estimating the 'ancient Mean Temperature of the Catch' (aMTC) using Indigenous fisheries catch records from two archaeological sites in the northeast Pacific. Despite different catch compositions, we observe an increase in aMTC over a 5,000-year period at two contemporaneously occupied archaeological sites in southwestern British Columbia, Canada. We document cooler catches from 5,000 to 3,000 cal yr BP and comparatively warmer catches from 1,800 to 250 cal yr BP. These warmer temperatures are broadly consistent with palaeoceanographic sea surface temperature proxies from British Columbia and Alaska. Because this method requires converting measures of fish bones into estimates of fish size structure, abundance, biomass, and finally aMTC, opportunities exist to account for both variation and uncertainty at every step. Nevertheless, given that preindustrial fisheries data are ubiquitous in coastal archaeological sites, this method has the potential to be applied globally to broaden the temporal and geographic scale of ocean temperature baselines. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s10641-022-01243-7.
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Affiliation(s)
- Dylan Hillis
- Historical Ecology and Coastal Archaeology Laboratory, Department of Anthropology, University of Victoria, 3800 Finnerty Rd, Victoria, BC V8P 5C2 Canada
| | - Robert Gustas
- Historical Ecology and Coastal Archaeology Laboratory, Department of Anthropology, University of Victoria, 3800 Finnerty Rd, Victoria, BC V8P 5C2 Canada
| | - Daniel Pauly
- Institute for the Oceans and Fisheries, University of British Columbia, Vancouver, BC V6T 1Z4 Canada
| | - William W. L. Cheung
- Institute for the Oceans and Fisheries, University of British Columbia, Vancouver, BC V6T 1Z4 Canada
| | - Anne K. Salomon
- School of Resource and Environmental Management, Simon Fraser University, Burnaby, BC V5A 1S6 Canada
| | - Iain McKechnie
- Historical Ecology and Coastal Archaeology Laboratory, Department of Anthropology, University of Victoria, 3800 Finnerty Rd, Victoria, BC V8P 5C2 Canada
- Bamfield Marine Sciences Centre, Bamfield, BC V0R 1B0 Canada
- Hakai Institute, Quadra Island, BC V0P 1H0 Canada
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Tai TC, Calosi P, Gurney-Smith HJ, Cheung WWL. Modelling ocean acidification effects with life stage-specific responses alters spatiotemporal patterns of catch and revenues of American lobster, Homarus americanus. Sci Rep 2021; 11:23330. [PMID: 34857790 PMCID: PMC8639722 DOI: 10.1038/s41598-021-02253-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 10/29/2021] [Indexed: 12/02/2022] Open
Abstract
Ocean acidification (OA) affects marine organisms through various physiological and biological processes, yet our understanding of how these translate to large-scale population effects remains limited. Here, we integrated laboratory-based experimental results on the life history and physiological responses to OA of the American lobster, Homarus americanus, into a dynamic bioclimatic envelope model to project future climate change effects on species distribution, abundance, and fisheries catch potential. Ocean acidification effects on juvenile stages had the largest stage-specific impacts on the population, while cumulative effects across life stages significantly exerted the greatest impacts, albeit quite minimal. Reducing fishing pressure leads to overall increases in population abundance while setting minimum size limits also results in more higher-priced market-sized lobsters (> 1 lb), and could help mitigate the negative impacts of OA and concurrent stressors (warming, deoxygenation). However, the magnitude of increased effects of climate change overweighs any moderate population gains made by changes in fishing pressure and size limits, reinforcing that reducing greenhouse gas emissions is most pressing and that climate-adaptive fisheries management is necessary as a secondary role to ensure population resiliency. We suggest possible strategies to mitigate impacts by preserving important population demographics.
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Affiliation(s)
- Travis C. Tai
- grid.17091.3e0000 0001 2288 9830Changing Ocean Research Unit, Institute for the Oceans and Fisheries, The University of British Columbia, 2202 Main Mall, Vancouver, BC V6T 1Z4 Canada
| | - Piero Calosi
- grid.265702.40000 0001 2185 197XDépartment de Biologie, Chimie et Géographie, Université du Québec à Rimouski, 300 Allée des Ursulines, Rimouski, QC G5L 3A1 Canada
| | - Helen J. Gurney-Smith
- grid.23618.3e0000 0004 0449 2129Fisheries and Oceans Canada, St. Andrews Biological Station, 125 Marine Science Drive, St. Andrews, NB E5B 0E4 Canada
| | - William W. L. Cheung
- grid.17091.3e0000 0001 2288 9830Changing Ocean Research Unit, Institute for the Oceans and Fisheries, The University of British Columbia, 2202 Main Mall, Vancouver, BC V6T 1Z4 Canada
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