نوع مقاله : مقاله پژوهشی
نویسنده
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسنده [English]
The population dynamics of Penaeus semisulcatus was studied out in the Persian (Bushehr province waters) through a series of research cruises conducted by the R/V Lavar.
The growth and mortality parameters for both sexes were estimated by FLEFAN and FISAT computer programs. The following results obtained for males:
L∞=37mm, K=1.8per year, t0=0.3, M=2.8, F=4.5 and Z = 7.3.
These results for females were as follows: L∞=49 mm, K = 2.6 per year, t0=0.6, M=3.2, F=6.7, Z=9.9.
According to obtained results, the exploitation rate for males and females were 0.61 and 0.67, respectively and the ϕ-value was estimated 7.8 for males and 8.3 for female.
The sex ratio Was M:F-1:1 and the spawning season was from January to March with the main peak in January.
The maximum age for males and females were determined 21 and 19 months respectively.
کلیدواژهها [English]
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