The effect of the introduction of Nile tilapia (Oreochromis niloticus, L.) on small indigenous fish species (mola, Amblypharyngodon mola, Hamilton; chela, Chela cachius, Hamilton; punti, Puntius sophore, Hamilton)

Rerproductice biology of three important indigenous small fish viz., mola ( INDIGENOUS SMALL FISH VIZ., MOLA (Amblypharyngodon mola), Chela (Chela cachius) and punti (Puntius sophore)

Reproductive biology of three important small indigenous fish species mola (Amblypharyngodon mola), punti (Puntius sophore) and chela (Chela cachius) was studied for 12 months from January to December, 1999 in the Department of Fisheries Management, Bangladesh Agricultural University, Mymensingh. Gonadosomatic index (GSI) and ova diameter were analysed to determine their reproductive cycle. Thr...

Rerproductice biology of three important indigenous small fish viz., mola ( INDIGENOUS SMALL FISH VIZ., MOLA (Amblypharyngodon mola), Chela (Chela cachius) and punti (Puntius sophore)

Reproductive biology of three important small indigenous fish species mola (Amblypharyngodon mola), punti (Puntius sophore) and chela (Chela cachius) was studied for 12 months from January to December, 1999 in the Department of Fisheries Management, Bangladesh Agricultural University, Mymensingh. Gonadosomatic index (GSI) and ova diameter were analysed to determine their reproductive cycle. Thr...

Does size matter? Observation on the availability of micronutrients in two different sizes of small freshwater fish Amblypharyngodon mola (Hamilton, 1822)

Two size groups (based on Total Length, TL) of Amblypharyngodon mola (small, TL=4-7cm; big, TL>7cm) were studied for availability of Ca, Fe, Zn and Vitamin A contents in its body using AAS and HPLC methods. The Ca, Fe and Zn contents of small sized A. mola were found to be significantly higher than that of big sized groups. The average Ca content was estimated to be highest (4680.223 mg.100g-1)...

Role of morphometry in determining the feeding success of small freshwater fish species: Multivariate analysis of Amblypharyngodon mola, Puntius ticto, and Esomus danricus

Factor and multiple regression analysis were used to extract the morphometric variables that contributed to feeding success in three small freshwater fishes. Of the first two factors, factor 1, showed high loading of gut weight (GW), length of the upper (UJ), and lower jaws (LJ) in mola, Amblypharyngodon mola (Hamilton), and GW and vertical mouth opening (VMO) in punti, Puntius ticto (Hamilton)...

The effect of feed ingredients on the settling velocity of feces in Tilapia (Oreochromis niloticus L.)