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Notes on Length-weight Relationship and Condition Factor of Fresh Water Fish, Labeo Boga (hamilton) (cypriniformes: Cyprinidae)

M.Rokshanara Pervin
Fisheries research Laboratory, Department of Zoology, Rajshahi University, Rajshahi 6205, Bangladesh

M. Golam. Mortuza
Fisheries research Laboratory, Department of Zoology, Rajshahi University, Rajshahi 6205, Bangladesh

Abstract/ Executive Summary:

The value of regression co-efficient, ‘n’, is nearly equal for male (2.975) and slightly higher (3.289) in case of female and combined sexes (3.108.). The higher values of ‘n’ revealed that the length-weight relationships of this species followed the cube law and might be affected by the general condition of appetite and gonadal contents of fish. These factors are also responsible for the variation of condition factors and relative condition factors.

Keywords: Labeo boga, Length-weight relationship, Condition factor

Location: Fisheries research Laboratory, Department of Zoology, Rajshahi University, Rajshahi

Start Date: 00-06-2006

End Date: 00-05-2007

Program Area: Animal Health and Management

Commodity: Fish

Objectives:

To obtain the relationship between total length and other body weight are also very much essential for stabilizing the taxonomic characters of the species.

Methodology:

A total of 550 specimens were collected for the morphometric analysis from different fish markets of Rajshahi city during the period of June 2006 to May 2007. The monthly collections were sexed and group in to respective size group (10 size group of 20 mm class intervals). The males were found to range from 91 to 286 mm in total length and total weight was ranged between 8 to 356 g. In case of females, the total length and weight were ranged from 92 to 290 mm and 10 to 450 g respectively. The mean total length for male was calculated as 190.15±5.249 mm and the mean total weight calculated as106.387 ± 6.716 g (N=168). For female, the mean total length and weight were calculated as 195.8091±3.301 mm and 104.20 ± 4.286 g (N=332) respectively.

Source of Information: Univ. j. zool. Rajshahi Univ. Vol. 27, 2008 pp. 97-98

Article Link (Online Journal): http://journals.sfu.ca/bd/index.php/UJZRU

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Knowledge Management: Journal