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:: Volume 8, Issue 3 (9-2020) ::
JAIR 2020, 8(3): 92-97 Back to browse issues page
The effect of environmental conditions on catches in CPUE in Beach sine tours in Miankaleh region of Golestan province
Mohsen Yahyaei , Saeid Gorgin * , Daniel Stepputis , Mohsen Safaei , Seyed Yosef Pighambari
Abstract:   (2505 Views)
The bony fish of the Caspian Sea are among the most important and most valuable fish in this sea, which unfortunately their reserves have been declining for many reasons in recent years. In this research, environmental factors were investigated on catching important bones such as white rutilus kutum (Kamensky, 1901), golden multitude of Chelon auratus (Risso, 1810) and Alosa saposchnikowii (Grimm, 1887). The catches were carried out by blade cooperatives on the Miankale Peninsula in Golestan Province during 73 times during the 1965-93 fishing season. In this research, 8914 whitefish, 4067 golden babies and 2335 piglets were biometric and weighed. The results showed that for goldfish with relevant data in model 5, it can be 50% for whitefish with the relevant data in model 3 can be 47% and for fish only one model with The very low coefficient of determination with a meaningful parameter yields quantities of catch per unit of effort. The results also showed that the effect of environmental parameters and spring on the average fish frequency per unit of effort was observed that the temperature factor, especially the increase of maximum temperature, was the most effect on the frequency of whitefish in the Caspian Sea, while increasing the humidity and precipitation on fish catch; Reducing the winds of the year will have the highest impact on the catching of wild boar and word. The highest catch per unit of effort was observed at 31 and 33 mm fountain.
Keywords: Environmental conditions, CPUE, Beach sine, Miankaleh
Full-Text [PDF 838 kb]   (568 Downloads)    
Type of Study: Research | Subject: Special
Received: 2018/12/22 | Accepted: 2019/02/5 | Published: 2021/01/26
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Yahyaei M, Gorgin S, Stepputis D, Safaei M, Pighambari S Y. The effect of environmental conditions on catches in CPUE in Beach sine tours in Miankaleh region of Golestan province. JAIR 2020; 8 (3) :92-97
URL: http://jair.gonbad.ac.ir/article-1-629-en.html


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Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Volume 8, Issue 3 (9-2020) Back to browse issues page
نشریه علمی پژوهشی پژوهشهای ماهی شناسی کاربردی Journal of Applied Ichthyological Research
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