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Food and Feeding Habit of Tor Putitora (hamilton)

M. A. Alam
Department of Fisheries Management, Bangladesh Agricultural University, Mymensingh-2202. Bangladesh

S. Dewan
Department of Fisheries Management, Bangladesh Agricultural University, Mymensingh-2202. Bangladesh

M. I. Hossain
Department of Fisheries and Aquaculture, Rajshahi University, Rajshahi-6205, Bangladesh.

M. G. Hussain
Fisheries Research Institute, Mymensingh, Bangladesh

Abstract/ Executive Summary:

Results of the studies had been conducted for ten months on the types and amount of food taken by Tor putitora (Hamilton) and patterns of feeding in relation to its size. The fish was found to be an omnivore with higher feeding preference for plant material than for animal material. The dominant food groups recorded in the gut contents were Cyanophyceae, Bacillariophyceae and Chlorophyceae. The feeding activity of the fish increased with the increase in size of fish and they showed some changes in the patterns of feeding as they grow. The fish was found to explore the food substances from all the layers of the water body.

Keywords: Food, Feeding habit, Tor putitor

Location: Bangladesh Fisheries Research Institute (BFRI), Mymensingh

Start Date: 00-06-1999

End Date: 00-03-2000

Program Area: Animal Health and Management

Commodity: Carp fish

Objectives:

To study the types and amount of food taken by the fish and the patterns of feeding according to its size.

Methodology:

The fishes were collected from a pond of Bangladesh Fisheries Research Institute (BFRI), Mymensingh with the help of a seine net having mesh size as 6.35 mm. The fishes were collected once in every month starting from June, 1999 to March, 2000. The collected fishes were preserved in a plastic container with 10% formalin to prevent further digestion of food. The stomach contents were analyzed by the points method and percentage of frequency of occurrence method. Different food items were identified.

Source of Information: Univ. j. zool. Rajshahi Univ. Vol.21, 2002. pp. 21-22

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The fish Tor putitora is an omnivore and showed some changes in the feeding patterns as they grow. Higher quantities of Cyanophyceae, Bacilloriophyceae and Crustacea were recorded in large size group and Chlorophyceae, Euglenophyceae and Rotifera is small size group. Increasing body size and mouth apparatus width permitted change in “food niche” and way of life.

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