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Journals / Bayburt Üniversitesi Fen Bilimleri Dergisi / 2020 / Cilt: 3 - Sayı: 2

Age, Growth and Mortality Parameters of Squalius fellowesii (Günther, 1868) from Eşen Stream

Squalius fellowesii (Günther, 1868) Eşen Çayı Popülasyonu için Yaş, Büyüme ve Ölüm Parametreleri

Erdogan ÇİÇEK
Okan KAPTAŞ
Burak SEÇER
Sevil SUNGUR
Pages
87–92
Publication Date
2020-12-31
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Total, natural and fishing mortalities were calculated as Z: 0.457, M: 0.324, F: 0.133, respectively and the exploitation rates were estimated as E: 0.29.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:This aims to determine age, growth and mortality parameters of Squalius fellowesii sampled from Eşen River.
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Key Findings & Data:Totally 404 specimens were caught in May to September 2014 were analyzed.
💡
Conclusion & Impact:Total, natural and fishing mortalities were calculated as Z: 0.457, M: 0.324, F: 0.133, respectively and the exploitation rates were estimated as E: 0.29.
🔬Design:Research Article
📍Scope:2014 · 404 specimens
⚙️Variables:Çevresel esneklik · Eşen Çayı · Sömürülme oranı

Abstract

This aims to determine age, growth and mortality parameters of Squalius fellowesii sampled from Eşen River. Totally 404 specimens were caught in May to September 2014 were analyzed. Age of sampled specimens varied from age groups of 0 to V. Total length ranged from 3.6 to 20.2 cm 9.48±2.79 cm and total weight varied from 0.43 to 108.65 g and the mean of these variables are 9.48±2.79 cm and 13.54±13.44 g, respectively. The relationship between length and weight (LWR) was determined as W=0.0066*L3.2584 and growth parameters were estimated as L∞: 35.97 cm, to: -0.004 year -1, k: 0.134 year, K: 1.12 and Φꞌ: 2.24. Total, natural and fishing mortalities were calculated as Z: 0.457, M: 0.324, F: 0.133, respectively and the exploitation rates were estimated as E: 0.29.

Özet

Bu çalışmada Eşen Çayı’ndan örneklenen Squalius fellowesii popülasyonu için yaş ve büyüme özellikleri bunlara dayalı olarak ölüm oranları belirlenmiştir. BU kapsamda Mayıs-Eylül 2014 tarihleri arasında örnekleme yapılarak toplam 404 birey incelenmiştir. İncelenen balıkların 0-V. yaş gruplarına mensup oldukları belirlenmiştir. Bu bireylerin total boy değerleri 3.6-20.2 cm ve total ağırlık değerleri ise 0.43-108.65 g arasında değişimekte olup ortalama değerler ise sırasıyla 9.48±2.79 cm ve 13.54±13.44 g şeklinde tahmin edilmiştir. Boy-ağırlık ilişkisi (LWR) W=0.0066*L3.2584 şeklinde belirlenmiş olup büyüme parametreleri ise L∞: 35.97 cm, k: 0.134 yıl, to: -0.004 yıl -1, Φꞌ: 2.24 ve K: 1.12 şeklinde hesaplanmıştır. Toplam, doğal ve balıkçılık ölüm oranları sırasıyla Z: 0.457, M: 0.324 ve F: 0.133 olarak tahmin edilmiş ve stoktan yararlanma düzeyi ise E: 0.29 olarak hesaplanmıştır.

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Cite This Article

ÇİÇEK, E., KAPTAŞ, O., SEÇER, B., SUNGUR, S. (2020). Age, Growth and Mortality Parameters of Squalius fellowesii (Günther, 1868) from Eşen Stream. Bayburt Üniversitesi Fen Bilimleri Dergisi, Cilt: 3 - Sayı: 2, 87–92. https://ajindex.com/articles/741276

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