A study on fishing status and some reproductive characteristics of Klunzinger’s mullet (Lize klunzingeri) in coastal waters of Khuzestan province
Biological characteristics of Liza klunzingeri were studied in two coastal areas, Sajaphi and Bahrekan, of eastern Khuzestan during March to February 2007. Among total 1880 measured fish specimens, 947 specimens were analyzed. The mean value of Gonado-somatic Index (GSI) for the male and female fish were calculated as 0.96± 1.39 and 3.25 ± 3.26 respectively. The GSI value was highest in November and lowest in July. The mean value of condition factor (K) was 1.25± 0.14 in male and 1.21± 0.15 for female. The highest K value were observed in June and the lowest value in February. The lenght at first maturity regardless of sexuality, was found to be 14.5 cm and the time of spawning based on reproduction pattern were determined in Nov- Dec. The length-weight relationship were calculated as Y=0.024L^2.76 (n=226R^2 =0.72) for males, Y=0.011L^3.00 (n=444R^2 = 0.78) for females and Y=0.0208L^2.82 (n=670R^2 =0.82) for total fishes and also it’s found significant in level lengthweight relationship in (P<0.05). According to biological characteristics and referring to American fisheries society (AFS) indices and Fuzzy logic expert system, Lize klunzingeri is classified as low vulnerable species.
| Main Authors: | , , , , |
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| Format: | Report biblioteca |
| Language: | Persian |
| Published: |
Iranian Fisheries Science Research Institute
2018
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| Subjects: | Lize klunzinger, Gonado-somatic index, GSI, Condition factor, |
| Online Access: | http://hdl.handle.net/1834/13940 |
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