Impact assessment of global warming on aquaculture with particular reference to inland fisheries of west bengal

Abstract

Global warming is the most challenging scenario before the mankind in twenty first century. Greenhouse gas induced global warming is one of the major reasons for changing the global climate. India is also no exception, increase in air temperature, regional monsoon variation, severe storm incidents, droughts, etc are common. In West Bengal, the average minimum and maximum temperatures have increased in the range of 0.2 - 0.5°C throughout the state over last three decades. newlineThe impact of climate change is being felt on both terrestrial and aquatic systems. The vulnerable freshwater ecosystems are most affected at all levels from molecular to ecosystem level. Global warming and climate change have both negative and positive impacts on ecosystem function, productivity, fish growth, etc. The present work embodied in the thesis Impact assessment of global warming on aquaculture with particular reference to inland fisheries of West Bengal is an account of the assessment of the impact of global warming on inland water bodies. This has been discussed in General Introduction (Chapter 1), Review of Literature (Chapter 2), Plan of Work (Chapter 3), General Methodology (Chapter 4), Experiments and Results (Chapter 5), General Discussion (Chapter 6), Summary and Conclusion (Chapter 7). Results of the study have been presented in five independent full length paper forms published or accepted for publication in peer reviewed journals. These papers are given in five sections: (i) Assessment of the carbon sequestration potential and developing Water Quality Signature of some wetlands in different agro-climatic zones of West Bengal (ii) Estimation of the carbon sequestration potential of water chestnut (Trapa natans) under exogenous introduction of compressed CO2 (iii) Selection/ Determination of optimum C:N:P ratio and dose for better production of water chestnut (Trapa sp.) in different water bodies in West Bengal and its social and environmental implications to the farmers, (iv) Impact of solar driven greenhouse raised temperatur