Climate change impacts on the atmospheric circulation, ocean, and fisheries in the southwest South Atlantic Ocean: a review

We present an interdisciplinary review of the observed and projected variations in atmospheric and oceanic circulation within the southwestern South Atlantic focused on basin-scale processes driven by climate change, and their potential impact on the regional fisheries. The observed patterns of atmo...

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Vydané v:Climatic change Ročník 162; číslo 4; s. 2359 - 2377
Hlavní autori: Franco, Bárbara C., Defeo, Omar, Piola, Alberto R., Barreiro, Marcelo, Yang, Hu, Ortega, Leonardo, Gianelli, Ignacio, Castello, Jorge P., Vera, Carolina, Buratti, Claudio, Pájaro, Marcelo, Pezzi, Luciano P., Möller, Osmar O.
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Dordrecht Springer Netherlands 01.10.2020
Springer Nature B.V
Predmet:
Algal blooms
Anomalies
Anthropogenic climate changes
Anthropogenic factors
Atlantic Ocean
Atmospheric circulation
Atmospheric circulation anomalies
Atmospheric circulation patterns
Atmospheric models
Atmospheric Sciences
Brazil
Brazil Current
Clam fisheries
Clams
Climate change
Climate Change/Climate Change Impacts
Climate effects
Climate models
Coastal ecosystems
Earth and Environmental Science
Earth Sciences
Economics
Environmental conditions
environmental factors
Environmental impact
Eutrophication
Fisheries
Fishery data
Human influences
Impact analysis
Impact damage
income
indigenous knowledge
Industrial fisheries
livelihood
Local communities
Long-term records
Marine fish
Marine fisheries
mortality
Ocean circulation
Ocean temperature
Ocean warming
Oceans
Pelagic fisheries
Review Article
Shellfish fisheries
Small-scale fisheries
Surface wind
uncertainty
Uruguay
water
Water quality
Water temperature
wind
Wind patterns
Brazil
United States > US
Atlantic Ocean
Uruguay
Climate change
Atmospheric circulation
Fisheries
Ocean circulation
Southwest South Atlantic Ocean
Brazil Current
ISSN:0165-0009, 1573-1480
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Shrnutí:We present an interdisciplinary review of the observed and projected variations in atmospheric and oceanic circulation within the southwestern South Atlantic focused on basin-scale processes driven by climate change, and their potential impact on the regional fisheries. The observed patterns of atmospheric circulation anomalies are consistent with anthropogenic climate change. There is strong scientific evidence suggesting that the Brazil Current is intensifying and shifting southwards during the past decades in response to changes in near-surface wind patterns, leading to intense ocean warming along the path of the Brazil Current, the South Brazil Bight, and in the Río de la Plata. These changes are presumably responsible for the poleward shift of commercially important pelagic species in the region and the long-term shift from cold-water to warm-water species in industrial fisheries of Uruguay. Scientific and traditional knowledge shows that climate change is also affecting small-scale fisheries. Long-term records suggest that mass mortalities decimated harvested clam populations along coastal ecosystems of the region, leading to prolonged shellfishery closures. More frequent and intense harmful algal blooms together with unfavorable environmental conditions driven by climate change stressors affect coastal shellfisheries, impact economic revenues, and damage the livelihood of local communities. We identify future modelling needs to reduce uncertainty in the expected effects of climate change on marine fisheries. However, the paucity of fisheries data prevents a more effective assessment of the impact of climate change on fisheries and hampers the ability of governments and communities to adapt to these changes.
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ISSN:0165-0009
1573-1480
DOI:10.1007/s10584-020-02783-6