Growth Aspects, CPUE and Stock Size Estimation for Fish Populations in the Dorudzan Dam Lake, Fars Province, Iran

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ZAMANPOOR M.; EBRAHIMI M.H.; ZARE P.; Yaripour S.; RAHIMI M.

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Journal: JOURNAL OF APPLIED ICHTHYOLOGICAL RESEARCH Year:2020 | Volume:8 | Issue:3 Page(s): 63-72

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Title

Growth Aspects, CPUE and Stock Size Estimation for Fish Populations in the Dorudzan Dam Lake, Fars Province, Iran

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AssessmentQ1

AquaticQ2

CatchQ2

Condition factorQ2

ReservoirQ1

Abstract

Knowledge of fish diversity, population data, stock size, and calculation of the sustainable fishery is essential for successful and sustainable management of lakes. This research reports a study on fish populations in the Dorudzan Dam Lake, Fars Province. Fish were captured from three stations in the late summer and mid spring 2015 (three days for each sampling) using nylon gill nets. The mean length and optimum length, Condition factor, Catch per unit effort, total biomass, and acceptable Catch were assessed. The fish community of the Dorudzan Dam Lake included 8 species Cyprinus carpio, Carasobarbus luteus, Alburnus mossulensis, Capoeta aculeate, C. damascina, Hypophthalmichthys molitrix, H. nobilis, and Paniliza abu (the two last species are reported for the first time from this Dam Lake). The length-weight equations indicate a proportionate growth, except for H. nobilis which the low number of samples did not allow the analyses and Assessments. The Condition factor was higher than 1 in all species, which confirms their proper somatic growth. The acceptable lengths for Catch were calculated as P. abu (14cm), C. carpio (30cm), C. luteus (21cm), A. mossulensis (14cm), C. aculeate (24cm), C. damascina (24cm), and H. molitrix (76cm). Catch per unit effort was 6324 g for P. abu, 1260 g for A. mossulensis, 2064 g for C. carpio, 800 g for C. aculeate, and 172 g for C. luteus. The maximum acceptable Catch for P. abu, C. carpio, C. luteus, A. mossulensis, and C. aculeate were 12309, 3690, 293, 2643, and 1367 kilograms, respectively. However, due to the higher accuracy of length based Assessments, it is recommended to use the acceptable lengths for the Catch. Due to the continuous climate regime change and eutrophication conditions, annually fish populations monitoring is recommended in this lake.

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APA: Copy

ZAMANPOOR, M., EBRAHIMI, M.H., ZARE, P., Yaripour, S., & RAHIMI, M.. (2020). Growth Aspects, CPUE and Stock Size Estimation for Fish Populations in the Dorudzan Dam Lake, Fars Province, Iran. JOURNAL OF APPLIED ICHTHYOLOGICAL RESEARCH, 8(3 ), 63-72. SID. https://sid.ir/paper/384760/en

Vancouver: Copy

ZAMANPOOR M., EBRAHIMI M.H., ZARE P., Yaripour S., RAHIMI M.. Growth Aspects, CPUE and Stock Size Estimation for Fish Populations in the Dorudzan Dam Lake, Fars Province, Iran. JOURNAL OF APPLIED ICHTHYOLOGICAL RESEARCH[Internet]. 2020;8(3 ):63-72. Available from: https://sid.ir/paper/384760/en

IEEE: Copy

M. ZAMANPOOR, M.H. EBRAHIMI, P. ZARE, S. Yaripour, and M. RAHIMI, “Growth Aspects, CPUE and Stock Size Estimation for Fish Populations in the Dorudzan Dam Lake, Fars Province, Iran,” JOURNAL OF APPLIED ICHTHYOLOGICAL RESEARCH, vol. 8, no. 3 , pp. 63–72, 2020, [Online]. Available: https://sid.ir/paper/384760/en

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