Fecundity and gonadosomatic index of Glossogobius giuris (Hamilton, 1822) from the Payra River, Patuakhali, Bangladesh

Abstract

Glossogobius giuris were collected during March to September 2013 from the Payra river to estimate the length-weight relationship with relative condition factor (Kn), fecundity, gonadosomatic index (GSI) and relation between fecundity and other parameters. The length-weight relationship was found to be Log W= 2.667 Log TL – 1.805 in male and Log W = 2.931 Log TL – 2.040 in female. The mean Kn were found to be 1.02±0.155 for male and 0.97±0.276 for female which indicates satisfactory condition of the fish population. The mean relative fecundity was ranged from 88495 to 264104 with a mean value of 171581±17855, having a average total length of 21.21±0.44 cm, body weight 70.22±4.62 g and gonad weight 2.74±0.31 g. The relationships among the fecundity, the total length, body weight, gonad weight were found to be linear and positively correlated. The mean GSI value was 3.42±0.33 and the highest GSI value was recorded 9.34±0.71 in the month of September. This study will help to introduce this species in sustainable aquaculture through proper management and for the development of induced breeding technique.

Fecundity of Air-Breathing Fish <i>Channa Striatus</i> (Bloch) From Waterbodies of Beed District, Maharashtra, India

“…The number of eggs produced by a female is dependent on different factors such as size, age, condition types of the samples (Lagler et al, 1967).During present investigation the number of eggs were directly proportional to the weight of the fish and the fecundity increased progressively with ovary weight of fishes. Similar observations were also made by Roy et al, (2014) and Parameswaran et al, (1972).…”

Reproductive Biology of Glossogobius giuris (Hamilton), in Manchar Lake Sindh, Pakistan

“…Gonadosomatic index of G. giuris was higher from February to September it declined then after, suggesting that the species has single breeding season which last from April to July, previously single and prolonged breeding season for G. giuris was observed from Bangladesh in Payara river Bangladesh [12]. However in other study from Bangladesh same fish was reported to breed several times in a year [15].…”

“…Fecundity of G. giuris in the present study ranged between 7346.45 to 39750.45, previously similar fecundity for G. giuris was observed by Doha, (10760-29580), Although previously from the Payali River Bangladesh fecundity of same species was observed much high (88495 to 264104). Variations in fecundity of a same species in different environment are not exceptional case [12]. Such variations can be attributed to food availability, fish stock, maturity stages and other environmental factors [9,12].…”

“…Variations in fecundity of a same species in different environment are not exceptional case [12]. Such variations can be attributed to food availability, fish stock, maturity stages and other environmental factors [9,12]. Small sized fishes are reported to have matured earlier in smaller size class and they bear small sized eggs, low fecundity [16].…”

“…Knowledge about Gonadosomatic Index and fecundity of any fish is important for understanding its life history, and evaluating the potential of its stock for commercial purposes. Furthermore, such knowledge is also needed for the sound management for the conservation of the Gupta and Shrivastava [9][10][11][12].…”