Potential Impacts of Climate Change in Brazilian Marine Fisheries and Aquaculture

Gasalla, Maria A.; Abdallah, Patrízia Raggi; Lemos, Daniel

doi:10.1002/9781119154051.ch14

Cited by 11 publications

(10 citation statements)

References 44 publications

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“…In Pontal de Leste, the situation is worse, as it is a subsistence community and reliant on income from selling the fish. The strong dependence of these communities implies a concern in relation to food security, since their main source of income and food is threatened by climate change (Gasalla et al, 2018) and their access to markets, in addition to involving greater spending on transit, may also be impacted by the increase in storm surges predicted by climate change scenarios (von Storch, 2014). A similar situation is expected to be found in other isolated communities that also depend on the external market to buy and sell goods.…”

Section: Sensitivity Driversmentioning

confidence: 96%

Adaptive Capacity Level Shapes Social Vulnerability to Climate Change of Fishing Communities in the South Brazil Bight

Martins

Gasalla

2020

Front. Mar. Sci.

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Understanding the social vulnerabilities and community strategies to adapt to environmental changes are crucial for the development of actions to enhance both community conservation and survival. With the aim to identify the drivers of vulnerability to climate change among different coastal communities a comprehensive multiscale vulnerability framework was here adopted. Eight selected fishing communities representative of the South Brazil Bight (SBB) area were surveyed at the household level. A total of 151 fishers were interviewed. Quantitative indicators were calculated at the community-level, and their drivers identified, allowing for comparisons of the overall vulnerability score. Findings revealed that remoteness and the lack of climate changerelated institutional support increase vulnerability among fishing communities in the region. On the other hand, community organization, leadership, research partnerships, community-based co-management, and livelihood diversification reduce vulnerability. Our analysis focused on social vulnerability to climate change in regional fishing communities and provides a better understanding of these effects in coastal zones, the factors explaining vulnerability and some perspectives on resilient and adaptable systems. Learning from comparisons at the ecosystem level may be applied to coastal regions elsewhere.

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Section: Sensitivity Driversmentioning

confidence: 96%

Adaptive Capacity Level Shapes Social Vulnerability to Climate Change of Fishing Communities in the South Brazil Bight

Martins

Gasalla

2020

Front. Mar. Sci.

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Section: Box 2 Fisheries In Brazilmentioning

confidence: 99%

“…The south-western Atlantic Ocean is a hotspot of climate change 228 , with increased sea surface temperature the most prominent climate risk to marine resources, followed by changes in ocean circulation and stratification. These physical climatic changes are anticipated to influence primary production, reducing productivity for fisheries in Brazil 228,229 . In saline and freshwater wetlands, climate change modified hydrological regimes, which can cause intense droughts or inundation, are expected to reduce habitat area and the abundance of fish in confined refugia 230 .…”

Section: Box 2 Fisheries In Brazilmentioning

confidence: 99%

Climate change, tropical fisheries and prospects for sustainable development

Lam

Allison

Bell

et al. 2020

Nat Rev Earth Environ

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152

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“…A poleward displacement of the shoals led to an increase in landings of the southern fleets from 1980 onwards (Jablonski 2007). Gasalla et al (2017) also suggested that the Brazilian sardine moved to colder and deeper waters, leading to a southward shift in its distribution. The southern edge of the sardine distribution was typically at 29°S (Santa Marta Grande Cape), but the first occurrence of this species in southern Brazilian waters at about 34°S was reported in April-May 1991.…”

Section: Fisheriesmentioning

confidence: 99%

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

et al. 2020

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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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Potential Impacts of Climate Change in Brazilian Marine Fisheries and Aquaculture

Cited by 11 publications

References 44 publications

Adaptive Capacity Level Shapes Social Vulnerability to Climate Change of Fishing Communities in the South Brazil Bight

Adaptive Capacity Level Shapes Social Vulnerability to Climate Change of Fishing Communities in the South Brazil Bight

Climate change, tropical fisheries and prospects for sustainable development

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

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