Some aspects of biology of banded gourami, Colisa fasciata (Bloch and schneider 1801) in Jessore, Bangladesh
By: Md. Sherazul Islam, Sharmin Akter, Md. Rezwanul Hasan, Shahanur Siddiqa Sheba
Key Words: Colisa fasciata, Food and feeding habit, maturity, Fecundity, Breeding season
Int. J. Biosci. 9(4), 72-80, October 2016.
The experiment was conducted to know some aspects of biology such as food and feeding habit, maturity size, breeding season and fecundity of the banded gourami, Colisa fasciata (Bloch and Schneider 1801) in Jessore region of Bangladesh during May, 2014 to April, 2015. Random samples were collected from different fish markets in Jessore and Jhenaidah districts. The males were larger in size and dominant over females. The gut status of the species was 48% empty, 23% ½ full and 29% full. Feeding intensity was low during April to July (spawning time) which increased afterward of January (post spawning). The gut in small size fishes was mostly empty and the food items increased with the increasing size. Various food items were encountered viz; Bacillariophyceae, Chlorophyceae, Balantideae, insect, mud and unidentified food materials. The alimentary canal was long and coiled and major food (48%) was plant materials which indicated that the fish is herbivore. The 50% of the females got maturity at 55-64 mm size class. The breeding period was March to September and fecundity was ranged from 360 to 865 with an average 744 ± 119. The findings could be used as baseline information for the management of the fish.