Length-Weight relationship in adult (one year old) Heteropneustes fossilis collected from culture pond of Batiaghata Khulna Bangladesh was conducted during 1 June, 2007 to 2 July, 2007. The overall sex ratio male female 1: 0.98. total length recorded cm and the weight individuals measured by means a sensitive (3 decimal places) electric balance g. indicated that fish is directly related with sp...

From the last decade the pond has been suffering from the resource of water due to decline rain fall, variable climate, and geologic conditions. Thus, so many of areas of the India suffer from severe water shortage like Chhatarpur. Ichthyodiversity increases the economic success of the fisheries pond and implies that the area has become more efficient. A fish are not only useful as source of fo...

As far as the detection of metal genotoxicity in fish is concerned, micronucleus (MN) test is considered an extremely suitable measure. In this study, frequencies of micronucleated erythrocytes were scored in peripheral blood of catfish, Heteropneustes fossilis (bloch) after acute in-vivo exposure of zinc at different concentrations (5, 10 and 30 ppm) in the laboratory condition. These three co...

Effect of cumulative doses (7, 14 and 28 mg kg(-1) body weight) of testosterone (T) and estradiol-17 beta (E2) on total phospholipids (TP), phosphatidylcholine (PC), phosphatidylserine (PS), phosphatidylinositol (PI) and phosphatidylethanolamine (PE) in tissues were investigated during the gonadal recrudescence, in prespawning phase of the annual reproductive cycle in intact and ovariectomized ...

Temperature has significant influence on physio-chemical responses of all living organisms including fish. The present study was conducted to evaluate the effect of temperature on dimethoate toxicity (96 h static bioassay) to freshwater catfish Heteropneustes fossilis. Fish mortality data were recorded at 24, 48, 72 and 96 h and analysed using EPA Probit analysis, Version 1.5, software based on...

Several external and internal factors contribute to the reproductive success of teleosts, which makes process complex unique. In Indian freshwater catfish, Heteropneustes fossilis, monsoon plays a crucial role as it fine tunes neuroendocrine axis, culminating in oocyte maturation. Therefore, induction maturation requires coordinated interaction among hypothalamic, hypophyseal, peripheral hormon...

Production potential of shingi, Heteropneustes fossilis and koi, Anabas testudineus in polyculture were assessed at a stocking density of 2, 47,000 and 3, 70,500 ha-1, respectively in treatment T1 and T2. Monoculture of H. fossilis and A. testudineus was designed at a stocking density of 2, 47,000 ha-1 in treatment T3 and T4, respectively. Culture period of shingi was 120 days and koi was 100 d...

Malachite green is an extensively used biocide in the aquaculture industry world-wide. It has been widely used due to lack of a proper alternative. Pyceze, however, is a pharmaceutical alternative to malachite green, with bronopol as its active ingredient. The catfish Heteropneustes fossilis were exposed for four days to 1/5th of LC50 values of each of malachite green (0.24mg/l) and Pyceze (0.4...