Impacts of Climate Change on Fish Productivity: A Quantitative Measurement

Impacts of Climate Change on Fish Productivity: A Quantitative Measurement

Sibananda Senapati (Chandragupt Institute of Management Patna, India) and Vijaya Gupta (National Institute of Industrial Engineering, India)
DOI: 10.4018/978-1-4666-8814-8.ch012
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This paper attempts to understand the climatic and socio-economic factors influencing the efficiency and thereby the livelihood of fishing community in Mumbai. Efficiency in fishing is influenced by the scale of production, technology and inputs used, socio-economic and climate sensitive factors such as temperature, current, wind, rainfall etc. A primary survey of 164 fishing households is conducted in five fishing villages of Mumbai to collect input-output and other relevant data related to socioeconomic and climatic factors. Using stochastic frontier function, it is found that the number of working days, fuel costs, number of workers along with type of family, education, electronic gadgets used in fishing and observation on temperature change significantly affects the productivity and thereby their preparedness. The fishermen belonging to nuclear family and using advanced fishing equipments along with those are observing a rise in temperature successfully adapted and their efficiency level is increased. Mostly rich and affluent fishermen are more efficient than others. The estimated technical efficiencies for the fishing households range from 0.12 to 0.87, with a mean efficiency level of 0.39. Technological advancement in the production process with large scale of operation significantly influences fishermen's awareness, adaptability to climate change and also the efficiency.
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2. Climate Change, Ecological Degradation, And Pollution In Mumbai

2.1. Temperature

The A2 (business as usual) and B2 (sustainable path) scenarios are predicted for an average annual temperature increase of 1.75oC and 1.25oC respectively by 2050 for Mumbai (Sherbinin et al., 2007). Temperatures for the months of March to May have been increasing. In 2011 the highest temperature 41.6 0C was recorded for Mumbai.

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