Production of periphyton to enhance yield in polyculture ponds with carps and small indigenous species

Effect of Different Substrates on Fish Production and Water Quality in Periphyton Based Polyculture of Major Carps

“…According to these studies, periphyton served as natural feed for fish resulting in higher fish growth. However, findings of present study are in agreement with those of Tortolero et al (2016) and Jha et al (2018) who showed that weight gain of carps in control treatment (without substrate and periphyton) was comparable to that of substrate based treatments. Tortolero et al (2016) has attributed higher fish growth in control treatment to the periphytic communities grown on walls of tanks.…”

“…Although periphyton based aquaculture systems have been focused in earlier studies, most of the work in this field was done at the start of 21 st Century in Bangladesh (Wahab et al, 1999;Azim et al, 2001a;Ekram-Ul-Azim, 2001;Azim, et al, 2002;Azim et al, 2004;Rai et al, 2008). In some recent investigation, researchers have investigated the potential of periphyton based fish culture in Nepal and Brazil (Tortolero et al, 2016;Jha et al, 2018). The present study was a first pilot investigation to assess the potential of using periphyton in fresh water aquaculture in Pakistan.…”

Potential substrates for periphyton enhancement in Carp-SIS polyculture

“…Improving the conversion of nutrients into harvestable matters by enhancing the natural food production may be a suitable solution to the problem of higher cost as well as loss of nutrient inputs. Enhancing the growth of periphyton in pond production system has been proved to be a suitable method to increase the natural food production (Azim et al, 2001a;Rai et al, 2008;Jha et al, 2018).…”

“…Indian major carp (Wahab et al, 1999;Ramesh et al, 1999;Rai et al, 2010), tilapia (Hem and Avit, 1994;Shrestha and Knud-Hansen, 1994;Milstein et al, 2009: Jiwyam, 2013, common carp (Rai and Yi, 2012) as well prawn (Udin et al, 2007) prefer periphyton as natural food. Previous study on periphyton based carp polyculture in Nepal showed a promising result with an increase of 24% in fish yield (Jha et al, 2018). Many researches in periphyton based aquaculture was carried out using different parts of bamboo as substrate in Bangladesh and Nepal (Azim et al, 2001a, b;Azim et al, 2002;Rai et al, 2008;Shirin et al, 2013;Jha et al, 2018).…”

“…Previous study on periphyton based carp polyculture in Nepal showed a promising result with an increase of 24% in fish yield (Jha et al, 2018). Many researches in periphyton based aquaculture was carried out using different parts of bamboo as substrate in Bangladesh and Nepal (Azim et al, 2001a, b;Azim et al, 2002;Rai et al, 2008;Shirin et al, 2013;Jha et al, 2018). In previous experiment, farmers using bamboo mat as substrate for periphyton enhancement complained that it interfered with partial harvesting of fish.…”