Abstract
Fecundity of guchibaim, Mastacembelus pancalus was described based on 100 samples collected from the experimental ponds of the Field Laboratory Complex, Faculty of Fisheries, Bangladesh Agricultural University, Mymensingh during the period from May to July 2007. The surveyed sample ranged from 115 to165mm in total length and 6.97±0.44 to 10.52±0.22g in average body weight. The ovary weight of the specimens varied from 0.77±2.61 to 5.19±0.29g. The fecundity was found to vary from 881.50±44.03 to 1182.30±27.33 eggs. The relationship between fecundity and total length was linear and it was expressed as: Y= 4.3927x+398.02 (R2=0.5336). The relationship between fecundity and body weight was linear and it was expressed as: Y= 67.319x+449.62 (R2=0.7446). The relationship between fecundity and ovary weight was also linear and it was expressed as: Y=72.36x+799.77 (R2=0.9189). The fecundity was highly correlated with the total length, body weight and ovary weight of fish and the Mastacembelus pancalus is a low fecund fish. Keywords: Fecundity; Guchibaim; Mastacembelus pancalus DOI: 10.3329/jbau.v7i1.4975 J. Bangladesh Agril. Univ. 7(1): 133-137, 2009
Highlights
The fecundity of a fish is defined as the number of eggs that are likely to be laid during a spawning season (Chondar, 1977)
To the best of the knowledge, there is no previous information on the fecundity of Mastacembelus pancalus, few studies have been conducted on sexual maturity and fecundity of this species from the Indian sub-continent (Jhingran and Verma, 1967; Chondar, 1977; Rao and Sharma, 1984; Quddus et al, 1990)
The fecundity was estimated from 100 randomly collected fish samples ranging in total length from 117.70±2.16 to 163.50±1.26 mm in length, 6.97±0.44 to 10.52±0.22 g in weight and ovary weight from 0.77±2.61 to 5.19±0.29 g
Summary
The fecundity of a fish is defined as the number of eggs that are likely to be laid during a spawning season (Chondar, 1977). Assessment of fecundity is having paramount importance in fisheries management as it provides knowledge about the number of offspring produced in a season and the reproductive capacity of the species (Qasim and Qayyum, 1963). The fecundity and its relation to the size of a fish make it possible to estimate the number of eggs likely to be liberated (Chondar, 1977). No precise information is available about the fecundity of Mastacembelus pancalus. Considering the availability and importance to the common people, the present work was undertaken with a view to determine the fecundity of this species
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