Study on digestive tract contents of fish : Preliminary step for identification of indigenous species in mosquito larval control

Abstract

The present study is based on screening of food preference by the indigenous fish under its natural condition. The gastrointestinal contents as an indicative of effective bioregulatory activity envisage the selection of a larvivorous fish. As many as 32 species of fishes were collected from their natural habitats at Imphal and Bishenpur districts in Manipur State between August 2007 to February 2008. Faecal drops of active fishes revealed remains of larvae / pupae of mosquitoes. However, the food types in 26 species of fish comprised larvae / pupae of mosquito, algae, weeds, tadepole fishes, crustaceans, insects, gastropods, worms and detritus / debris. On the basis of food preference Aplocheilus panchax, Polyacanthus fasciatus and Puntius manipurensis have been considered as most potent larvivorous fish of the study area.

Endemic Larvivorous Fish Fauna in Vicinities of Selected Water Bodies of Doon Valley (Uttarakhand)

“…Some considerable works are Husain (1995Husain ( , 2003Husain ( , 2015Husain ( , 2018; Uniyal and Kumar (2006); Kumar (2017) and Rana et al, (2017a, b). While considering species diversity and habit -habitat study of larvivorous fish, the investigations made by Sharma and Rajagopal (1987); ; Yadav et al (1992); Haq and Yadav (1997); Sumodan and Kumar (1998); Pemola and Jauhari (2009); Das and Dutta (2013); Rama Rao (2014); Krishna et al (2016); Rao et al (2017); Das et al, (2018Das et al, ( , 2021 and Ubarhande ( 2019) could be mentioned here. Also, investigation made by Jauhari et al (1996) on distribution of indigenous larvivorous fish with special reference to their larvivorous potential from Sahaspur area Doon Valley could be one remarkable work.…”