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Euglenoid Algae Form Shrimp Culture Ponds in Khulna, Bangladesh

A.B.M. Wohidul Islam
Department of Botany, Govt. B.L. College, Daulatpur, Khulna, Bangladesh

Keya Renu Roy
Department of Botany, Govt. Victoria College, Narail, Bangladesh

Mobashwira Sultana Manira
Instructor
Refrigeration & Airconditioning , Satkhira Polytechnique Institute, Satkhira, Bangladesh

Md. Mujibor Rahman*
Environmental Science Discipline, Khulna University, Khulna 9208, Bangladesh

M. Zaman
Department of Botany, Rajshahi University, Rajshahi 6205, Bangladesh

Abstract/ Executive Summary:

Nineteen species belonging to four genera namely, Euglena, phacus, Astasia and Trachelomonas have been studied and illustrated from shrimp culture ponds based on the one-year investigation.

Keywords: Euglenoid algae, Euglena, Phacus, Trachelomons, Astasia, shrimp culture ponds

Location: Khulna district

Start Date: 00-11-2006

End Date: 00-10-2007

Program Area: Animal Health and Management

Commodity: Algae, Shrimp

Objectives:

Englenaids are found in a wide range of habitats, but they mostly occurs in stagnant waters from temporary road side, ditches, drains, small reservoirs or larger, permanent bodies of water, such as ponds, lakes and reservoirs. They are particularly abundant in organically rich habitats. Euglenoids are bright reddish-brown to deep-brown in color while others may be hyaline, yellow and orange. Islam and Khatun (1966), Islam and Aziz (1979), Islam and Khondokar (1981) and Islam et al. (1991) have been studied the Euglenoids of Bangladesh. Much more information is needed to asses the total Euglenoids member of Bangladesh.

Methodology:

The two Ponds selected for the study were located in Khulna district at 24°35’N and 24°70’ N and 89°10’E and 89°35’E. Pond -1 was more or less rectangular with a surface area of 5.2 acre. It was a fresh water shrimp Pond which is situated at Terokhada thana. Pond-1 was connected with the Atarabay river by a canal. Main source of water was rainfall though sometime water was supplied from canal. Pond-2 was more or less square in shape with a surface area of 2.69 acre. It was a seasonally saline water shrimp pond. It is in Botiaghata thana and is connected with the Satuari river.

Phytoplankton samples were collected from November 2006 to October 2007 at monthly intervals. The plankton was collected by plankton net of no. 20 silk bolting cloth, water 75 liters was passed through the plankton net with the help of a plastic pan of 5 litre capacity. The water was passed down the net and the plankton was colleted in a glass test tube fixed firmly at the lower end of the plankton net (Welch 1948). After collection, plankton materials were transferred to glass bottles and preserved in Transeaus solution. The enumeration of the euglenoids were Phytoplankton samples were collected from November 2006 to October 2007 at monthly intervals. The plankton was collected by plankton net of no. 20 silk bolting cloth, water 75 liters was passed through the plankton net with the help of a plastic pan of 5 litre capacity. The water was passed down the net and the plankton was colleted in a glass test tube fixed firmly at the lower end of the plankton net (Welch 1948). After collection, plankton materials were transferred to glass bottles and preserved in Transeaus solution (Transeau, 1951).

Source of Information: Khulna University Studies, 9(1): 79-84, 2008

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Euglenoids are over-emphasized for their bilateral character of plant and animal. As well as its character is very significant on evolutionary treads. It is possible to get a rough idea of the condition of the water by noting the predominant euglenoids species and it has a glorious impact on pisciculture. Bangladesh is the land of rivers, ponds, beels, haors, ditches with the rich prospects of euglenoids diversity. To accesses the euglenoids diversity we have to carry out much research works on them. The present study was such an attempt to know the taxonomy, abundance and periodicity of them.

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