Title: Some Biological Aspect of Bartail Flathead (Platycephalus indicus Linnaeus, 1758) in Northwest of Persian Gulf (Khuzestan Coastal Waters, Iran)
Abstract:During this study from December 2009 to November 2011, 469 p. indicus fish was caught and their weights and lengths were measured. Total number of caught fishes included, 248 males, 198 females and 23...During this study from December 2009 to November 2011, 469 p. indicus fish was caught and their weights and lengths were measured. Total number of caught fishes included, 248 males, 198 females and 23 immature fishes. The Mean, maximum and minimum total lengths were 353±180, 1886 mm and 57 mm respectively. The Mean, maximum and minimum total weight for this species was 384±130g, 600 and 140 g respectively. The length-weight relation were calculated as W=0.000009 FL (n=248, R =0.83) for males, 2.95 2 W=0.000005FL (n=198, R = 0.82) for females and W=0.000004FL (n=469, R =0.86) for total fishes. Verifying 3.07 2 3.10 2 calculated b with 3, using Students t-test there was significant difference between calculated b and 3 (P<0.05), growth pattern is allometric. The mean values of condition factor (K) and Hepatosomatic Index (HIS) was 0.71± 0.14, 1.23±0.65 in male specimens and 0.75± 0.15, 1.32± 0.70 for female specimens. The highest values of K and HIS were observed in November, January and the lowest were in March, June. The mean value of Gonadosomatic Index (GSI) for the male and female were 0.52 ± 0.39 and 1.41 ± 0.62 respectively. For both sexes, the highest GSI values were observed in April and the lowest were in November. Mean GSI value and maturity stages indicated that spawning time were occurred during April to May. The mean size at first sexual maturity (Lm) was 283mm for males and 310 mm for females.Read More
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
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Cited By Count: 5
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