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Seasonal Variation in the Occurrence of Some Zooplankton in a Fish Pond

A. S. Bhuiyan
Department of Zoology, Rajshahi University, Rajshahi-6205, Bangladesh

Q. Nessa
Department of Zoology, Rajshahi University, Rajshahi-6205, Bangladesh

Abstract/ Executive Summary:

Observations were made on the seasonal variation in the occurrence of some zooplankton in a fish pond. A total of 31 genera were recorded, out of these, 8 ?belongs to Rotifera, 5 to Copepoda, 112 to Cladocera, 3 to Protozoa, 2 to Nematoda and 1 to Oligochaeta. The role of temperature, dissolved oxygen, free CO₂ , pH, turbidity and alkalinity in the occurrence of different genera is discussed.

Keywords: Zooplankton, Physico-chemical parameter

Location: Rajshahi University campus

Start Date: 00-01-1995

End Date: 00-12-1995

Program Area: Animal Health and Management

Non-commodity: Performance

Objectives:

The present study was made on the seasonal variations and occurrence of some zooplankton in respect to physico-chemical parameters in a pond.

Methodology:

The present investigation was conducted for a period of one year in a fish pond within Rajshahi University campus from January '95 to December '95. Water and zooplankton samples were collected at weekly interval in morning (O h), noon (12 h) and evening (18 h) from surface, middle and bottom layer. Water temperature, turbidity and pH were measured by a water quality checker (20A, TOA-Japan). CO₂, DO and alkalinity were measured by titration method. Zooplankton were collected by a plankton net of no. 20 count bolting cloth and preserved in Transeau's solution. The numerical assessment of zooplankton was done by Sedgewick-Rafter counting cell and identified.

Source of Information: Bangladesh J. Fish. Res., 2 (2): 201-203, 1998

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

A total of 31 genera were recorded, out of these, 8 ?belongs to Rotifera, 5 to Copepoda, 112 to Cladocera, 3 to Protozoa, 2 to Nematoda and 1 to Oligochaeta.

Knowledge Management: Journal