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Journals / Turkish Journal of Fisheries and Aquatic Sciences / 2011 / Cilt: 11 - Sayı: 4

Türkiye’nin Orta Karadeniz kıyılarındaki mezgit balığının (Gadus merlangus euxinus Nordmann, 1840) beslenme rejimi

Feeding regime of whiting (Gadus merlangus euxinus Nordmann, 1840) in Turkish Middle Black Sea Coast

Serap SAMSUN
Yakup ERDEM
Ferhat KALAYCI
Pages
515–522
DOI
—
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AI Summary & Key Takeaways

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

Anchovy as primarily prey; whiting, horse mackerel and shrimps as secondary prey; sprats and gobies as thirdly prey; pipefish and isopoda sp. as occasional prey were determined according to geometric index of importance (GII).

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this study, stomach contents of 716 whiting were examined caught from the Turkey Middle Black Sea Coast between December 2001 and April 2003.
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Key Findings & Data:The Frequency of Occurrence, The Numerical Occurrence Windell and Bowen (1978) and Geometric Index of Importance (GII) Assis (1996) methods were used.
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Conclusion & Impact:Anchovy as primarily prey; whiting, horse mackerel and shrimps as secondary prey; sprats and gobies as thirdly prey; pipefish and isopoda sp. as occasional prey were determined according to geometric index of importance (GII).
🔬Design:Research Article
📍Scope:2001 Verileri
⚙️Variables:Merlangius merlangus · mezgit · Karadeniz

Abstract

In this study, stomach contents of 716 whiting were examined caught from the Turkey Middle Black Sea Coast between December 2001 and April 2003. The analyses of feeding regime of whiting were made according to the seasons and age groups. The Frequency of Occurrence, The Numerical Occurrence Windell and Bowen (1978) and Geometric Index of Importance (GII) Assis (1996) methods were used. Analysis of stomach contents showed that whiting feed on mainly the fishes and crustacean, mostly anchovy (Engraulis encrasicolus) with yearly find frequency as (%F) 23.04. The occurrence of the quantity and type of food items in the stomach was related to their seasonal abundance. It was observed that whiting consumed intensively during spring and summer. Anchovy as primarily prey; whiting, horse mackerel and shrimps as secondary prey; sprats and gobies as thirdly prey; pipefish and isopoda sp. as occasional prey were determined according to geometric index of importance (GII).

Özet

Bu çalışmada Aralık 2001- Nisan 2003 tarihleri arasında Türkiye’nin Orta Karadeniz kıyılarından avlanan 716 adet mezgit balığının mide içeriği incelenmiştir. Mezgit balığının beslenme rejimi incelemeleri yaşlara ve mevsimlere göre yapılmıştır. Bu incelemelerde Geometrik Önem İndeksi (GII) Assis (1996), Sayısal Varlık ve Bulunuş Frekansı Yöntemleri (Windell ve Bowen, 1978) kullanılmıştır. Mide içeriği analizleri, mezgitin çoğunlukla balık ve kabuklularla, daha çokta yıllık bulunuş frekansı (%F) 23,04 olan hamsi (Engraulis encrasicolus) ile beslendiğini göstermiş, alınan besinlerin miktar ve çeşidinin, besin organizmalarının mevsimsel bolluğu ile ilişkili olduğu belirlenmiştir. Mezgitin yoğun olarak ilkbahar ve yaz aylarında beslendiği gözlenmiştir. Geometrik önem indeksi (GII)’ne göre hamsi birincil; mezgit, istavrit ve karides ikincil; kaya ve çaça üçüncül; deniz iğnesi ve isopoda türleri ise arasıra alınan diğer besin grupları şeklinde saptanmıştır.

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Cite This Article

SAMSUN, S., ERDEM, Y., KALAYCI, F. (2011). Türkiye’nin Orta Karadeniz kıyılarındaki mezgit balığının (Gadus merlangus euxinus Nordmann, 1840) beslenme rejimi. Turkish Journal of Fisheries and Aquatic Sciences, Cilt: 11 - Sayı: 4, 515–522. https://ajindex.com/articles/407863

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