Stratification in Karnataka Reservoirs
Stratification in Karnataka Reservoirs
Date
2002
Authors
Das, A.K.
Journal Title
Journal ISSN
Volume Title
Publisher
Society of Fisheries Technologists (India)Cochin
Abstract
Stratification studies unveil some of the ongoing limnological processes related to fish
production. In the present paper, an attempt is made to study the thermal and chemical
stratifications in eleven reservoirs under Cauvery, Krishna and Sharavathy river systems in
Karnataka. Harangi, Manchanbele and Bhadra reservoirs showed thermoclinity with clear
demarcation of epi- and metalimnion. Oxygen profile was orthograde in Ghataprabha,
Malaprabha, Narayanpur and Bhadra and clinograde in Harangi, Manchanbele, Nugu, Vani
Vilas Sagar and Linganamakki. The strength of oxycline in water column especially during
pre-monsoon influences the success of gillnetting operations, as the fish confines to the
epilimnetic zone as observed in Manchanbele
Description
Keywords
Stratification, productivity, reservoirs, Karnataka
Citation
Fishery Tech 39(1):70-77