Yıl: 2014 Cilt: 14 Sayı: 3 Sayfa Aralığı: 623 - 631 Metin Dili: Türkçe

Reproduction Biology of the Garfish, Belone euxini Günther, 1866 (Belonidae: Belone) in the Southeast Black Sea

Öz:
Zargana balığının (Belone euxini) üreme biyolojisini belirlemek ve bu özelliklerin diğer popülasyonlardan farkınıtanımlamak için Güneydoğu Karadenizde Aralık 2011 ve Temmuz 2013 tarihleri arasına aylık örneklemeler yapılmıştır.Zargana balığının toplam yumurta verimi 4015 ve 32453 adet/birey arasında değiştiği (ortalama: 14365±1049) ve bir batıniçin bırakılan ovaryumlardaki olgun yumurta sayısının ise 560 ve 9713 adet/birey arasında değiştiği (ortalama: 2338±243)belirlenmiştir. Yumurta verimi ve toplam boy arasındaki korelasyon katsayısı (r) istatistiksel olarak sıfırdan farklıhesaplanmıştır. Ovaryumlardaki küçük yumurtaların ortalama çapı büyük yumurtaların (olgun yumurtar) ortalama çapındanistatistiksel olarak daha küçük hesaplanmıştır (t-test: P = 1.54E-230). Ovaryumlardaki olgun yumurta sayısının toplamyumurta sayısına oranı %8 ve %34 arasında değiştiği (ortalama: %16±0,7) ve bir yıl içerisindeki batın sayısının ise 3 ve 12arasında değiştiği (ortalama: 6,8±0,3) belirlenmiştir. Araştırma bölgesinde zargana balığının gonat olgunluk safhaları ve GSIdeğerlerinin aylık seyrine göre Mayıs ve Eylül ayları arasında yumurtladığı tespit edilmiştir. İlk cinsi olgunluk boyu (TL50)dişiler için 34,4 cm TL ve erkekler için ise 33,3 cm TL şeklinde hesaplanmıştır. Bu çalışmanın sonuçları Karadenizde zarganabalığı stok yönetimi için biyolojik girdi parametreleri olarak önerilmiştir.
Anahtar Kelime:

Güneydoğu Karadeniz de Zargana Balığının, Belone euxini Günther, 1866 (Belonidae: Belone) Üreme Biyolojisi

Öz:
To describe the reproduction biology of the garfish, Belone euxini and differences in parameters from other populations,monthly sampling were conducted between December 2011 and July 2013 in the southeast Black Sea. Absolute fecundityranged between 4015 and 32453 (mean: 14365±1049) and mature eggs that was left for each spawning portion (batchfecundity) ranged between 560 and 9713 (mean: 2338±243). Correlation coefficient of fecundity and total length relationshipswere significantly different from zero. Mean diameter of immature eggs in ovary was significantly lower than mature eggs (t- test: P = 1.54E-230). The proportion of mature eggs in the ovary ranged between 8% and 34% (mean: 16%±0.7) and thenumber of batches was obtained between 3 and 12 (mean: 6.8±0.3) times in a year. Monthly proportion of gonad maturitystages and monthly GSI values showed that the spawning period of garfish was between May and September. The size at firstsexual maturity (TL50) was estimated as 34.4 cm TL for females and 33.3 cm TL for males. The results of this study wereoffered as biological input parameters regarded as a reference for management of Black Sea stocks of the garfish species.
Anahtar Kelime:

Belge Türü: Makale Makale Türü: Araştırma Makalesi Erişim Türü: Erişime Açık
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APA BİLGİN S, TAŞÇI B, BAL H (2014). Reproduction Biology of the Garfish, Belone euxini Günther, 1866 (Belonidae: Belone) in the Southeast Black Sea. Turkish Journal of Fisheries and Aquatic Sciences, 14(3), 623 - 631.
Chicago BİLGİN SABRİ,TAŞÇI Burak,BAL Hatice Reproduction Biology of the Garfish, Belone euxini Günther, 1866 (Belonidae: Belone) in the Southeast Black Sea. Turkish Journal of Fisheries and Aquatic Sciences 14, no.3 (2014): 623 - 631.
MLA BİLGİN SABRİ,TAŞÇI Burak,BAL Hatice Reproduction Biology of the Garfish, Belone euxini Günther, 1866 (Belonidae: Belone) in the Southeast Black Sea. Turkish Journal of Fisheries and Aquatic Sciences, vol.14, no.3, 2014, ss.623 - 631.
AMA BİLGİN S,TAŞÇI B,BAL H Reproduction Biology of the Garfish, Belone euxini Günther, 1866 (Belonidae: Belone) in the Southeast Black Sea. Turkish Journal of Fisheries and Aquatic Sciences. 2014; 14(3): 623 - 631.
Vancouver BİLGİN S,TAŞÇI B,BAL H Reproduction Biology of the Garfish, Belone euxini Günther, 1866 (Belonidae: Belone) in the Southeast Black Sea. Turkish Journal of Fisheries and Aquatic Sciences. 2014; 14(3): 623 - 631.
IEEE BİLGİN S,TAŞÇI B,BAL H "Reproduction Biology of the Garfish, Belone euxini Günther, 1866 (Belonidae: Belone) in the Southeast Black Sea." Turkish Journal of Fisheries and Aquatic Sciences, 14, ss.623 - 631, 2014.