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Food, Feeding Habits and Fecundity of a Freshwater Perch, Meni Fish

Gulam Mustafa
Department of Zoology, University of Dhaka.

A. T. A. Ahmed
Department of Zoology, University of Dhaka.

Kh. Rafiqul Islam
Department of Zoology, University of Dhaka.

Abstract/ Executive Summary:

Food, feeding habits and fecundity of the freshwatar pech, Nandus nandus (Hamilton) were studied. The fish was predominantly carnivorous, It was both bottom and column feeder in feeding habit. its food items were mainly prawns. smal fish, fish fry, chironomid and insect larvae. The fecundity ranqad from 7,381 eggss for a fish with body length of 9.7 cm and 46.220 eggs for a fish with body length 13.5 cm. The fish was highly fecund for its size. Breeding season ranged from June to July. Mathematical relationship between body length fecundity and body weiqht-ovarv weight was found to be linear.

Keywords: Meni Fish, Food Feeding Habits, Freshwater Perch

Location: Tangail district.

Start Date: 00-04-1979

End Date: 00-09-1979

Program Area: Animal Health and Management

Commodity:

Objectives:

Methodology:

For the study of food and feeding habits, 135 specimens of Nandus nandus were collectsd from April. 1979 to September, 1979 from Tarai beel of Tangail district. The fishes ranged from 6 cm. to 16.8 cm. in total length and 5 gm to 60 gm in body weight. The fishes were caught monthly by cast net (mesh size 20 mm). The stomachs were removed after dissecting out the fishes and preserved in 5% formalin fur detailed study. The stomachs were split opened carefully and were washed in a petridish graduated in squares and examined under a binocular microscope (magnification 5x, 10x). For the fecundity estirnati on, 20 matured female fish of different size ranging from 6 cm to 16 cm in total length were collected in June and July, 1979. The overies were preserved for detailed study' in 5 % formalin.

Source of Information: Bangladesh Journal of Agriculture, Vol.5, No.4, Dec-1980

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The fish was predominantly carnivorous, It was both bottom and column feeder in feeding habit. Its food items were mainly prawns, smal fish, fish fry, chironomid and insect larvae. The fecundity ranqad from 7,381 eggss for a fish with body length of 9.7 cm and 46.220 eggs for a fish with body length 13.5 cm. The fish was highly fecund for its size. Breeding season ranged from June to July. Mathematical relationship between body length fecundity and body weiqht-ovarv weight was found to be linear.

It is observed that the average number of eggs was 28,283 for a female fish with an average body length of 11.96 cm. This suggests that the fish is highly fecund for its size.

Knowledge Management: Journal