Impacts of and resilience to climate change at the bottom of the shrimp commodity chain in Bangladesh: A preliminary investigation

Kais, Shaikh Mohammad; Islam, Saidul

doi:10.1016/j.aquaculture.2017.05.024

Cited by 50 publications

(36 citation statements)

References 48 publications

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“…Flooding can cause escapes, introduce predator species into culture ponds, and cause contamination of pond water through debris and waste intrusion (Adhikari et al 2018, Kais & Islam 2018. Floodrelated mortalities are not uncommon with pond culture (Bell et al 2009) and hatcheries.…”

Section: Flooding and Extreme Weathermentioning

confidence: 99%

Climate change and aquaculture: considering biological response and resources

Reid¹,

Gurney-Smith²,

Dj³

et al. 2019

Aquacult. Environ. Interact.

103

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The heavy reliance of most global aquaculture on the ambient environment suggests inherent vulnerability to climate change effects. This review explores the potential effects of climate change stressors on aquaculture biology and resources needed to support decision-making for vulnerability assessment, planned adaptation, and strategic research development. Climate change-mediated physiochemical outcomes important to aquaculture include extreme weather, precipitation and surge-based flooding, water stress, ocean acidification, sea-level rise, saltwater intrusion, and changes to temperature, salinity, and dissolved oxygen. Culture practices, environment, and region affect stressor exposure, and biological response between species or populations are not universal. Response to a climate change stressor will be a function of where changes occur relative to optimal ranges and tolerance limits of an organism's life stage and physiological processes; the average magnitude of the stressor over the production cycle; stressor rate of change; variation, frequency, duration, and magnitude of extremes; epigenetic expression, genetic strain, and variation within and between populations; health and nutrition; and simultaneous stressor occurrence. The effects of simultaneous stressors will frequently interact, but may not be fully additive or synergistic. Disease is a major aquaculture limiter, and climate change is expected to further affect plant and animal health through the host and/or infectious agents. Climate change may introduce further complexity to the aquaculture−wild fishery relationship, with over two-thirds of animal aquaculture production dependent on external feed inputs. Higher production costs could be an economic outcome of climate change for many aquaculture sectors. Some aquaculture practices may inadvertently reduce resiliency to climate change, such as a reduction of coastal vegetation, coastal ground-water pumping, and reduction of population variability in pursuit of consistent production traits. Information from the largest aquaculture producers such as China and the top 3 global culture species is still sparse in the literature. This potentially limits thorough understanding of climate change effects on some regional aquaculture sectors.

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Section: Flooding and Extreme Weathermentioning

confidence: 99%

Climate change and aquaculture: considering biological response and resources

Reid¹,

Gurney-Smith²,

Dj³

et al. 2019

Aquacult. Environ. Interact.

103

View full text Add to dashboard Cite

show abstract

“…pond, hatcheries) is located close to a water source and therefore susceptible to flooding. Flooding can result in escapes, introduction of invasive species (Oyebola & Olatunde 2019), and contamination of culture water (Adhikari et al 2018, Kais & Islam 2018, Oyebola & Olatunde 2019. Flood-related fish kills may occur for several reasons, but are mainly due to low oxygen in flood waters (Idris et al 2014).…”

Section: Sea-level Risementioning

confidence: 99%

“…Changing storminess has re cently been identified as having potentially catastrophic impacts for global fisheries, largely due to destruction of vessels, infrastructure, and communities (Sainsbury et al 2018). Such concerns can be extrapolated to coastal aquaculture, where farms are highly sensitive to storm events (Allison et al 2009, Rahman & Hossain 2012, Luening 2013, as evident by the storm-driven destruction of almost entire landbased aquaculture sectors (Reid & Jackson 2014, Kais & Islam 2018. Open-water aquaculture is also susceptible to severe weather, with large-scale escapes from sea cages correlated with storm events (Jensen et al 2010).…”

Section: Changing Weathermentioning

confidence: 99%

“…Protection against floods will be a combination of management strategies and age-old engineering approaches, such as increasing physical barriers or use of tanks and inland enclosures (Kais & Islam 2018, Oyebola & Olatunde 2019. The scope of response will be a function of damage potential.…”

Section: Flooding and Storm Protectionmentioning

confidence: 99%

“…Likewise in Taiwan, pond water levels are dropped prior to flooding (Chang et al 2013), and excess water volume is pumped out of ponds in some Indian regions (Adhikari et al 2018). Nets are placed around shrimp farms to prevent escapes during heavy rains and flooding in some regions of Bangladesh (Kais & Islam 2018) and fish ponds in India (Adhikari et al 2018). Fish evacuation or movement to safer culture areas may be necessary where flooding can overtop tanks or ponds (Dodd 2011, Adhikari et al 2018.…”

Section: Flooding and Storm Protectionmentioning

confidence: 99%

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Climate change and aquaculture: considering adaptation potential

Reid¹,

Gurney-Smith²,

Flaherty³

et al. 2019

Aquacult. Environ. Interact.

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Increases in global population and seafood demand are occurring simultaneously with fisheries decline in an era of rapid climate change. Aquaculture is well positioned to help meet the world's future seafood needs, but heavy reliance of most global aquaculture on the ambient environment and ecosystem services suggests inherent vulnerability to climate change effects. There are, however, opportunities for adaptation. Engineering and management solutions can reduce exposure to stressors or mitigate stressors through environmental control. Epigenetic adaptation may have the potential to improve stressor tolerance through parental or early life stage exposure. Stressor-resistant traits can be genetically selected for, and maintaining adequate population variability can improve resilience and overall fitness. Information at appropriate time scales is crucial for adaptive response, such as real-time data on stressor levels and/or species' responses, early warning of deleterious events, or prediction of longer-term change. Diet quality and quantity have the potential to meet increasing energetic and nutritional demands associated with mitigating the effects of abiotic and biotic climate change stressors. Research advancements in understanding how climate change affects aquaculture will benefit most from a combination of empirical studies, modelling approaches, and observations at the farm level. Research to support aquaculture adaptation requires an increasing amount of environmental data to guide biological response studies for regional applications. Increased experimental complexity, resources, and duration will be necessary to better understand the effects of multiple stressors. Ultimately, in order for aquaculture sectors to move beyond short-term coping responses, governance initiatives incorporating the changing needs of stakeholders, users, and culture ecosystems as a whole are required to facilitate planned climate change adaptation and mitigation.

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