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- W41199386 abstract "With a view to develop the oceanic pelagic fisheries,it was planned as early as 1965 to conduct exploratoryfishing in the offshore and oceanic areas by driftgillnetting and purse seining. During the cruises ofR. V. Varuna it was possible to plan out the operationof drift gillnet fishing which was started in January1965 and continued as and when possible upto the endof January 1968. Purse seining for tunas was alsoconducted by R. V. Varuna and M. V. Tuna of the erstwhileIndo-Norwegian Project. Although during thecruises scouting for tuna was conducted by sonar(ASDIC) (horizontal range 1500 m) and echosounders,it was found that visual scouting was more effective.The characteristic sonic spires in the Deep scatteringlayer between 300 and 450 metre were observed and it ispresumed that these could be due to the presence oflarger tunas such as bigeye and possibly billfishes atthat depth. A brief summary of the results of theoperations has been presented earlier (Silas 1969)." @default.
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- W41199386 date "1985-01-01" @default.
- W41199386 modified "2023-09-23" @default.
- W41199386 title "Exploratory fishing by oceanic drift gillnetting and purse seining in the Lakshadweep" @default.
- W41199386 hasPublicationYear "1985" @default.
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