作者: M Muralidhar , M Kumaran , M Jayanthi , B Muniyandi , AG Ponniah
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摘要: Tiger shrimp, Penaeus monodon has been the mainstay of India's seafood exports for the past two and half decades (recently, Litopenaeus vannamei is introduced) and has immense potential as a foreign exchange earner. It also has substantial contribution towards socio-economic development in terms of income and employment. Shrimp aquaculture is threatened by changes in temperature, precipitation, drought and extreme climatic events (cyclones, storms, floods) that affect infrastructure and livelihoods which can impact aquaculture both negatively and positively. Ecological changes, inundation of low-lying lands and saline intrusions into freshwater regions are likely to cause substantial dislocation of communities and disruption of farming systems. In the face of potential complexities of climate change interactions and their possible scale of impact, the primary challenge for the shrimp aquaculture sector will be to deliver food supply, strengthen economic output and maintain and enhance food security. It is expected that the climate change impacts will be disproportionately felt by small-scale shrimp farmers who are already amongst the most poor and vulnerable members of society. The small scale farmers are typically unorganized and most of the farmers did not have access to technological innovations and scientific applications. There is a need to forecast the likely effects of climate change on the shrimp aquaculture sector and to develop strategies to assist farmers and rural communities to adapt to the upcoming changes.