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DOI :10.26650/ASE2021963166   IUP :10.26650/ASE2021963166    Tam Metin (PDF)

Relationship Between by Catch Ratio of Sardine-Anchovy Targeted Purse Seine and Some Environmental Factors Based on a General Addictive Model in the Aegean Sea

Tevfik CeyhanZafer Tosunoğlu

By catch is a serious conservation challenge for the fisheries whose viability is increasingly under threat. To approach maximum by catch reduction with minimum loss of targeted catch, fisheries need to have information on the environmental and anthropogenic factors in multi species seas like the Mediterranean. In this study, we used generalized additive models (GAM) to by the catch ratio of purse seine fishery to determine the effects of environmental variables. The data were collected during each fishing trip in the 2018-2019 fishing season that covers the time period between September 1st and April 15th. There were 26 species (66.216 mt in total) recorded as by catch and the rates of by catch species in the total by catch amount varied between 0.001% and 23.1%. In terms of habitat of by catch species, the total ratios of benthopelagic, demersal and pelagic species were 52% , 28% and 20%, respectively. Significant interactions observed indicate that the fluctuations in by catch ratios differed by depth and sea surface temperature, whereas the quarters of year and the moon phases were not found to affect by catch ratios significantly. 


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APA

Ceyhan, T., & Tosunoğlu, Z. (2019). Relationship Between by Catch Ratio of Sardine-Anchovy Targeted Purse Seine and Some Environmental Factors Based on a General Addictive Model in the Aegean Sea. Aquatic Sciences and Engineering, 0(0), 0-0. https://doi.org/10.26650/ASE2021963166


AMA

Ceyhan T, Tosunoğlu Z. Relationship Between by Catch Ratio of Sardine-Anchovy Targeted Purse Seine and Some Environmental Factors Based on a General Addictive Model in the Aegean Sea. Aquatic Sciences and Engineering. 2019;0(0):0-0. https://doi.org/10.26650/ASE2021963166


ABNT

Ceyhan, T.; Tosunoğlu, Z. Relationship Between by Catch Ratio of Sardine-Anchovy Targeted Purse Seine and Some Environmental Factors Based on a General Addictive Model in the Aegean Sea. Aquatic Sciences and Engineering, [Publisher Location], v. 0, n. 0, p. 0-0, 2019.


Chicago: Author-Date Style

Ceyhan, Tevfik, and Zafer Tosunoğlu. 2019. “Relationship Between by Catch Ratio of Sardine-Anchovy Targeted Purse Seine and Some Environmental Factors Based on a General Addictive Model in the Aegean Sea.” Aquatic Sciences and Engineering 0, no. 0: 0-0. https://doi.org/10.26650/ASE2021963166


Chicago: Humanities Style

Ceyhan, Tevfik, and Zafer Tosunoğlu. Relationship Between by Catch Ratio of Sardine-Anchovy Targeted Purse Seine and Some Environmental Factors Based on a General Addictive Model in the Aegean Sea.” Aquatic Sciences and Engineering 0, no. 0 (Dec. 2021): 0-0. https://doi.org/10.26650/ASE2021963166


Harvard: Australian Style

Ceyhan, T & Tosunoğlu, Z 2019, 'Relationship Between by Catch Ratio of Sardine-Anchovy Targeted Purse Seine and Some Environmental Factors Based on a General Addictive Model in the Aegean Sea', Aquatic Sciences and Engineering, vol. 0, no. 0, pp. 0-0, viewed 4 Dec. 2021, https://doi.org/10.26650/ASE2021963166


Harvard: Author-Date Style

Ceyhan, T. and Tosunoğlu, Z. (2019) ‘Relationship Between by Catch Ratio of Sardine-Anchovy Targeted Purse Seine and Some Environmental Factors Based on a General Addictive Model in the Aegean Sea’, Aquatic Sciences and Engineering, 0(0), pp. 0-0. https://doi.org/10.26650/ASE2021963166 (4 Dec. 2021).


MLA

Ceyhan, Tevfik, and Zafer Tosunoğlu. Relationship Between by Catch Ratio of Sardine-Anchovy Targeted Purse Seine and Some Environmental Factors Based on a General Addictive Model in the Aegean Sea.” Aquatic Sciences and Engineering, vol. 0, no. 0, 2019, pp. 0-0. [Database Container], https://doi.org/10.26650/ASE2021963166


Vancouver

Ceyhan T, Tosunoğlu Z. Relationship Between by Catch Ratio of Sardine-Anchovy Targeted Purse Seine and Some Environmental Factors Based on a General Addictive Model in the Aegean Sea. Aquatic Sciences and Engineering [Internet]. 4 Dec. 2021 [cited 4 Dec. 2021];0(0):0-0. Available from: https://doi.org/10.26650/ASE2021963166 doi: 10.26650/ASE2021963166


ISNAD

Ceyhan, Tevfik - Tosunoğlu, Zafer. Relationship Between by Catch Ratio of Sardine-Anchovy Targeted Purse Seine and Some Environmental Factors Based on a General Addictive Model in the Aegean Sea”. Aquatic Sciences and Engineering 0/0 (Dec. 2021): 0-0. https://doi.org/10.26650/ASE2021963166



ZAMAN ÇİZELGESİ


Gönderim06.07.2021
İlk Revizyon17.08.2021
Son Revizyon01.09.2021
Kabul03.09.2021
Çevrimiçi Yayınlanma15.10.2021

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