Studies on Tropics of Fish Along Upper Tungabhadra Channel, Ballari District, Karnataka | Zendy

A. R. Kulkarni | Zendy

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Studies on Tropics of Fish Along Upper Tungabhadra Channel, Ballari District, Karnataka

Author(s) -

A. R. Kulkarni

Publication year - 2020

Publication title -

current world environment

Language(s) - English

Resource type - Journals

eISSN - 2320-8031

pISSN - 0973-4929

DOI - 10.12944/cwe.15.3.23

Subject(s) - trophic level , detritus , relative species abundance , biology , zooplankton , predation , fishery , abundance (ecology) , tropics , ecology

Gut analysis is the tool to understand the feeding patterns of fishes and is an important aspect of fisheries management. It also provides the basis for understanding trophic interactions in aquatic food webs and to investigate the most frequently consumed prey or to determine the relative importance of different food types to fish nutrition. In the present study the gut content analysis was performed in Garra, Gobi, Notopterus and Tilapia fishes collected from Tungabhadra upper irrigation channel at Ballari, Karnataka. Bacillariophyceae showed maximum number in all the four fish species. Over all it showed 40 % followed by Detritus (30 %), Chlorophyceae (17 %), Cyanophyceae(7 %) and Zooplankton (6 %). Among fishes Garrashowed maximum food items (2272) followed by Glossogobiusgiuris(1538), Notopterusnotopterus(996) and Oreochromismossambicus (769). The relative abundance of food items in the guts also revealed the Garra gotylastenorhynchus

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