Estimating Standing Stock Size of Reef and Ornamental Fishes in Larak Island, the Persian Gulf

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BEHZADI S.; SALARPOORI A.; DARVISHI M.; Akbarzadeh Chamachaei Gh.; Pourmozafar S.; GOZARI M.; MOMENI M.

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Journal: JOURNAL OF FISHERIES SCIENCE AND TECHNOLOGY (JFST) Year:2020 | Volume:9 | Issue:1 Page(s): 31-37

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Title

Estimating Standing Stock Size of Reef and Ornamental Fishes in Larak Island, the Persian Gulf

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Keywords

Standing BiomassQ1

Reef and Ornamental FishesQ1

Mesophotic Coral EcosystemsQ1

Larak IslandQ2

Persian GulfQ2

Abstract

Aims Monitoring of the fish biomass is one of the basic principles of fisheries management, but ornamental and reef fish stocks, because of difficulty of estimating their abundance, have been less studied than others. The aim of the present study was to estimate the Standing Biomass of ornamental and reef fishes in Larak Island, in the Persian Gulf. Materials & Methods Standing Biomass of ornamental and reef fishes was assessed seasonally using Underwater Visual Census Method (UVCm) in coral reefs and mesophotic coral reefs in Larak Island throughout 2018-2019. Two popular methods in UVCm (belt transect and stationary point) were used based on topography of sea bottom. The confidence interval of estimated Standing Biomass is calculated using bootstrapping method. Findings The Standing Biomass of ornamental and reef fishes is estimated as 2522. 18, 5222. 17, and 1325. 15kg in Site 1 (Juvenile of corals and dead corals), Site 2 (dead corals covered with microalgae), and Site 3 (rock and hard coral), that are located in 3-15 meters depth. The Standing Biomass at Site 4 (rock, hard coral, and Gorgonium spp.; depth 43m), was estimated as 884. 13kg. The least biomass was observed in summer and there is a significant relationship between this season and others (p<0. 05). In addition, the population structure of fish in the spring, autumn, and winter seasons was similar but significantly different from the population structure in summer. Conclusion The Abudefduf vaigiensis, Chromis weberi, C. xanthopterygia, Dascyllus trimaculatus, Pomacanthus maculosus, and Cheilodipterus spp. species appear to be used for the development of ornamental fish aquaculture industry, and Lutjanus fulviflammus, Diagramma pictum, Pomadasys kaakan, Pomadasys stridens, Pomadasys maculatum, Sphyraena jello, and S. putnamiea species can be commercially harvested, although they need to be investigated to determination of total allow catch (T. A. C).

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APA: Copy

BEHZADI, S., SALARPOORI, A., DARVISHI, M., Akbarzadeh Chamachaei, Gh., Pourmozafar, S., GOZARI, M., & MOMENI, M.. (2020). Estimating Standing Stock Size of Reef and Ornamental Fishes in Larak Island, the Persian Gulf. JOURNAL OF FISHERIES SCIENCE AND TECHNOLOGY (JFST), 9(1 ), 31-37. SID. https://sid.ir/paper/375368/en

Vancouver: Copy

BEHZADI S., SALARPOORI A., DARVISHI M., Akbarzadeh Chamachaei Gh., Pourmozafar S., GOZARI M., MOMENI M.. Estimating Standing Stock Size of Reef and Ornamental Fishes in Larak Island, the Persian Gulf. JOURNAL OF FISHERIES SCIENCE AND TECHNOLOGY (JFST)[Internet]. 2020;9(1 ):31-37. Available from: https://sid.ir/paper/375368/en

IEEE: Copy

S. BEHZADI, A. SALARPOORI, M. DARVISHI, Gh. Akbarzadeh Chamachaei, S. Pourmozafar, M. GOZARI, and M. MOMENI, “Estimating Standing Stock Size of Reef and Ornamental Fishes in Larak Island, the Persian Gulf,” JOURNAL OF FISHERIES SCIENCE AND TECHNOLOGY (JFST), vol. 9, no. 1 , pp. 31–37, 2020, [Online]. Available: https://sid.ir/paper/375368/en

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