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Journals / Su Ürünleri Dergisi / 2011 / Cilt: 28 - Sayı: 2

Some population parameters of the wedge clam (Donax trunculus L., 1758) in the west Marmara Sea.

Batı Marmara’da kum şırlanının (Donax trunculus L., 1758) bazı populasyon parametreleri

SERHAT ÇOLAKOĞLU
ADNAN TOKAÇ
Pages
65–70
DOI
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AI Summary & Key Takeaways

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

Spawning season, estimated from condition index, occurred between May and July.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this study, population parameters of the wedge clam Donax trunculus (Linnaeus, 1758) were estimated from the natural stock in the Sea of Marmara.
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Key Findings & Data:Samples were collected for 12 consecutive months (May 2007 – April 2008) in an unexploited population in west part of the Sea of Marmara.
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Conclusion & Impact:Spawning season, estimated from condition index, occurred between May and July.
🔬Design:Research Article
📍Scope:2007 Verileri
⚙️Variables:Domain Parameters

Abstract

In this study, population parameters of the wedge clam Donax trunculus (Linnaeus, 1758) were estimated from the natural stock in the Sea of Marmara. Samples were collected for 12 consecutive months (May 2007 – April 2008) in an unexploited population in west part of the Sea of Marmara. Growth parameters of D. trunculus were determined by length frequency distributions. The growth parameters and growth performance index obtained were L∞= 40.05 mm, K= 0.69 year-1, C= 1, WP= 0.71 of year (August) and Ø'= 3.04. D. trunculus population showed a longevity of 4.35 years, mortality (Z) and survival rate (St) were estimated as 0.998 year-1 and 0.37 year-1, respectively. Spawning season, estimated from condition index, occurred between May and July.

Özet

Bu çalışmada, Marmara Denizi’nde doğal yataklara sahip olan kum şırlanının (Donax trunculus, L., 1758) bazı populasyon parametreleri tahmin edilmiştir. Örneklemeler, Marmara Denizi’nin batısında avcılığa kapalı alanlardan 12 ay (Mayıs 2007 - Nisan 2008) süre ile aylık olarak yapılmıştır. D. trunculus’un büyüme parametreleri uzunluk–frekans dağılımları kullanılarak hesaplanmış, çalışmanın sonucunda büyüme parametreleri ve büyüme performansı, L∞= 40.05 mm, K= 0.69 yıl-1, C= 1, WP= 0.71 (Ağustos) ve Ø'= 3.04 olarak bulunmuştur. D. trunculus populasyonunda maksimum yaşam süresi 4.35 yıl olarak tahmin edilmiş, ölüm oranı (Z) 0.998 yıl-1, yaşam payı (St) ise 0.37 yıl-1 olarak bulunmuştur. Kondisyon indeksinden tahmin edilen üreme zamanı, Mayıs-Temmuz ayları olarak belirlenmiştir.

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Cite This Article

ÇOLAKOĞLU, S., TOKAÇ, A. (2011). Some population parameters of the wedge clam (Donax trunculus L., 1758) in the west Marmara Sea.. Su Ürünleri Dergisi, Cilt: 28 - Sayı: 2, 65–70. https://ajindex.com/articles/311178

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