STOCK ASSESSMENT OF THE PICK PERCH (STIZOSTEDION LUCIOPERCA) IN THE SOUTHERN COASTAL WATERS OF THE CASPIAN SEA

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ABD ALMALEKI SH.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Journal: Iranian Scientific Fisheries Journal Year:2005 | Volume:13 | Issue:4 Page(s): 95-110

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Information Journal Paper

Title

STOCK ASSESSMENT OF THE PICK PERCH (STIZOSTEDION LUCIOPERCA) IN THE SOUTHERN COASTAL WATERS OF THE CASPIAN SEA

Author(s)

ABD ALMALEKI SH. | Issue Writer Certificate

Keywords

STIZOSTEDION LUCIOPERCAQ3

STOCK ASSESSMENTQ4

FISHERY RETURN COEFFICIENTQ3

CASPIAN SEAQ3

IRANQ3

Abstract

Pick Perch is one of the most valuable fish species of the CASPIAN SEA, caught commercially each year. During the fishing season of the years 2000-200 I, 18 tons of the fish comprising 11 % of the total commercial catch was caught in the southern CASPIAN SEA. Of this around 12 tons was caught using beach seine (12 tons) in the coastal waters and another three tons in Anzali Lagoon and the rest is calculated to be the amount of the fish caught without license and recording. The mean fork length, weight and age of the species as 28.11±3.12cm, 253±91.1 grams and 3.09±0.72 years respectively. Also the length-weight relationship calculated as W=0.035*L2.65 (R2=65.66%, N=106). The range of age groups in the catch was 2 - 5 years of which the age groups 2 and 3 comprised 78.5% of the catch. I calculated the Von Bertalanffy growth equation for the fish as: Lt= 52.5 * [1-exp-0.158 * (t+ 1.852)]. The instantaneous rate of total, natural and fishing mortality coefficients were 0.95 yea-1, 0.31 yea-l and 0.64 yea-1 respectively. The calculated exploitation ratio was 0.67. Using the cohort analysis, I estimated the biomass of the species as 31.56 tones. The Gulland's formula used to assess the minimum sustainable yield of the fish as 13.89 tones which is lower than the total catch of the fish. FISHERY RETURN COEFFICIENT of the fish was measured as 2.87%.

Cites

ANALYSIS OF POPULATION STRUCTURE OF PIKEPERCH (SANDER LUCIOPERCA), IN IRANIAN WATERS OF CASPIAN SEA AND ANZALI WETLAND USING TRUSS SYSTEM

References

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APA: Copy

ABD ALMALEKI, SH.. (2005). STOCK ASSESSMENT OF THE PICK PERCH (STIZOSTEDION LUCIOPERCA) IN THE SOUTHERN COASTAL WATERS OF THE CASPIAN SEA. IRANIAN SCIENTIFIC FISHERIES JOURNAL, 13(4), 95-110. SID. https://sid.ir/paper/5042/en

Vancouver: Copy

ABD ALMALEKI SH.. STOCK ASSESSMENT OF THE PICK PERCH (STIZOSTEDION LUCIOPERCA) IN THE SOUTHERN COASTAL WATERS OF THE CASPIAN SEA. IRANIAN SCIENTIFIC FISHERIES JOURNAL[Internet]. 2005;13(4):95-110. Available from: https://sid.ir/paper/5042/en

IEEE: Copy

SH. ABD ALMALEKI, “STOCK ASSESSMENT OF THE PICK PERCH (STIZOSTEDION LUCIOPERCA) IN THE SOUTHERN COASTAL WATERS OF THE CASPIAN SEA,” IRANIAN SCIENTIFIC FISHERIES JOURNAL, vol. 13, no. 4, pp. 95–110, 2005, [Online]. Available: https://sid.ir/paper/5042/en

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