Author(s): Krishna PV, J Saroja, BVL Aradhya Sarma and M Gurramma

Abstract: Indian mackerel, Rastrelliger kanagurta is one of the commercially vital pelagic fish in east and west coast of India. The present study was analysis the food spectrum of R. kanagurtaat different stations of Visakhapatnam coast, i.e., Station 1. Bangarammapalem, Station 2. Rambilli and Station 3. Bheemunipatnam from July 2016 to June 2017. This species was found to be mainly feed on zooplankton goes to 37%, phytoplankton 26%, fish egg and larvae 10.5%, shrimp larvae 11% miscellaneous matter 9% and semi-digested matter 5.5% in case of males and females goes to zooplankton was 36%, phytoplankton 25%, fish egg and larvae 11%, shrimp larvae 11.5% miscellaneous matter 9.5% and semi-digested matter 7% was observed in this study. The study clearly explains that the R. kanagurta is a plankton feeder. The present results showed that majority of the guts are empty and range goes to 31-55%, followed by ¼ full was 11-26%, ½ full was 10.5-19%, ¾ full goes to 8-14%, full was 6-13.4% and gorged ranges between 2.5-8.5% in males in different months. In females it was showed that mostly are empty and ranges between 32-51%, followed by ¼ full was 15-30.5%, ½ full was 10.9-19.2%, ¾ full was 8-15%, full was 6-14% and gorged goes to 2.5-6.2% in study period. The feeding intensity was higher during August in case males and females and poor feeding during May and June and remain months are moderate feeding was noticed.

DOI: 10.22271/fish.2022.v10.i5b.2732

Pages: 107-110  |  442 Views  183 Downloads

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