Oceanographic investigations along the southwest coast of India (1976-78). A report prepared for Pelagic Fishery Investigations on the Southwest Coast. Phase II - Project project. Field document no. 5
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The description of the oceanographic conditions of the shelf waters off the southwest coast of India between Ratnagiri in the north and Tuticorin in the south for the period 1976-78 1s based on observations carried out along oceanographic sections located off Ratnagiri, Karwar, Kasaragod, Cochin, Quilon, Cape Comorin and Tuticorin. In accordance with the objectives of Phase II of the Project, more emphasis was given to improving our knowledge of the behavioural characteristics of the oil sardine and mackerel and also to evolving methodologies for fishery forecasting appropriate to Indian conditions. Hydrography/plankton/fishing surveys were conducted during the southwest monsoon to assess the intensity of upwelling and to establish possible correlations between the behaviour of commercially important pelagic fishes and the variations of environmental factors observed in space and time. Data related to the process of upwelling were collected mainly to evaluate the extent and intensity o f upwelling and also to verify the variations of certain physical parameters noted during the Phase I.