FECUNDITY, GONADO-SOMATIC INDEX (GSI),  CONDITIONING FACTORS, FOOD AND FEEDING HABIT  AND LENGTH- WEIGHT RELATIONSHIP OF GOLD SPOT  MULLET, Liza parsia

Joyanta  Bir; Md. Rashedul  Islam; Md. Saifuddin  Shah; Shikder Saiful  Islam; Wasim  Sabbir

doi:10.53808/KUS.2013.11and12.1219-L

FECUNDITY, GONADO-SOMATIC INDEX (GSI), CONDITIONING FACTORS, FOOD AND FEEDING HABIT AND LENGTH- WEIGHT RELATIONSHIP OF GOLD SPOT MULLET, Liza parsia

Authors

Joyanta Bir Fisheries and Marine Resource Technology Discipline, Khulna University, Khulna 9208, Bangladesh
Md. Rashedul Islam Fisheries and Marine Resource Technology Discipline, Khulna University, Khulna 9208, Bangladesh
Md. Saifuddin Shah Fisheries and Marine Resource Technology Discipline, Khulna University, Khulna 9208, Bangladesh
Shikder Saiful Islam Fisheries and Marine Resource Technology Discipline, Khulna University, Khulna 9208, Bangladesh
Wasim Sabbir Fisheries and Marine Resource Technology Discipline, Khulna University, Khulna 9208, Bangladesh

DOI:

https://doi.org/10.53808/KUS.2013.11and12.1219-L

Keywords:

Liza parsia, fecundity, gonado-somatic index, condition factor, food and feeding habit

Abstract

In order to estimate the fecundity, reproductive character and feeding habit of Liza parsia, 75 gravid females were collected from Pasur River and different shrimp farms of Khulna district. The equation for the total length-body weight and standard length-body weight relationship of the species were found to be BW = 9.769 x TL - 101.4 (R² = 0.883) and BW = 9.921 x SL - 77.19 (R² = 0.865) respectively. The condition factor ranged from 10.12-15.05 having mean value of 12.35+1.08. Fecundity of Liza parsia ranged from 56541 to 188860 and the mean fecundity was calculated as 122999±30035. Total weight of the gonad varied from 5.41 to 18.41 g where the left lobe of the ovary varied from 2.78 to 9.57 g and the right lobe varied from 2.63 to 9.25 g. The mean weight of the right lobe of the gonad was 5.942±1.409 g where the mean weight of the left lobe was 5.589±1.381 g and the mean weight of gonad was 11.532±2.773 g. The regression equation for fecundity with total length, standard length, body weight and gonad weight was estimated as F= -176359+16034.5 x TL (R2=0.60), F= -132956+16059.9 x SL (R2=0.57), F= -5595.3+1588.79 x TL (R2=0.63), F= 9048.16+9881.27 x GW (R2=0.83) respectively. The regression equation for total length, standard length and body weight with the gonad weight was estimated as GW= -19.154+1.64 x TL (R2=0.74) and GW= -1.78+0.16 x BW (R2=0.80) respectively. The GSI values obtained in the present study varied between 7.90 to 17.61 with mean value of 14.20+1.65. The stomach contents were algae, diatoms, desmids, plant materials, annelids, crustacean, bivalves, fishes, detritus and sand grains. Food items indicated that they are omnivorous in its feeding habits.

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Published

29-11-2013

How to Cite

[1]

J. Bir, M. R. . Islam, M. S. Shah, S. S. . Islam, and W. Sabbir, “FECUNDITY, GONADO-SOMATIC INDEX (GSI), CONDITIONING FACTORS, FOOD AND FEEDING HABIT AND LENGTH- WEIGHT RELATIONSHIP OF GOLD SPOT MULLET, Liza parsia”, Khulna Univ. Stud., pp. 67–75, Nov. 2013.