Mullus barbatus (Linnaeus, 1758)'un Üreme biyolojisi, Cinsel Olgunluk boyu ve fekonditesi

Yıl 2024, Cilt: 9 Sayı: 3, 348 - 358, 30.09.2024

Cemalettin Şahin , Muhammet Emanet , Yusuf Ceylan

https://doi.org/10.35229/jaes.1443094

Öz

Bu çalışmada, Ekim 2017-Eylül 2018 döneminde Karadeniz'de aylık olarak örneklenen
barbunya balığının (M. barbatus) üreme biyolojisi ve %50 olgunluk boyunun belirlenmesi
amaçlanmıştır. Örneklerin eşeyleri arasındaki farkın (dişi: 936, erkek: 454) anlamlı olduğu
belirlenmiştir. Üreme periyodunun belirlenmesinde kullanılan yöntemlerin ( GSI, gonadların
makroskopik analizi, gonadların mikroskopik analizi) birbirleri ile eşleştiği anlaşılmıştır. Güney
Karadeniz'de barbunyanın üreme dönemi Nisan-Ağustos ayları arasında olup, histolojik yönteme
göre yumurtlama Mayıs-Ağustos ayları arasında gerçekleşmiştir. Barbunyanın yumurtlama
dönemindeki ortalama FB ve ortalama FR sayısı ve standart sapmaları sırasıyla 4813,0±5324.0 ve
124,6±124.1 g-1 olarak hesaplanmıştır. Dişilerin ve erkeklerin olgunluk boyları sırasıyla 12,40
cm ve 11,29 cm'dir. Sonuç olarak, Karadeniz'deki barbunya stoklarının sürdürülebilirliği için
yumurtlama dönemleri, üreme stratejisi ve olgunluk boyları dikkate alınarak yeni bir yönetim
planının oluşturulması gerekmektedir.

Anahtar Kelimeler

Mullus barbatus, üreme biyolojisi, olgunluk boyu (Lm50), Karadeniz

Proje Numarası

FYL-2018-868

Reproductive Cycle, Sexual Maturity and Fecundity of Mullus barbatus (Linnaeus, 1758)

Öz

The study aims to determine the reproductive biology and 50% maturity length of red
mullet (M. barbatus) by taking monthly samples in the Black Sea between October 2017 and
September 2018. The difference in the sex ratio of the samples (female: 936, male: 454) was
found to be significant. It was understood that the results of the methods used to determine the
reproductive period (GSI, macroscopic analysis of gonads, microscopic analysis of gonads) were
compatible with each other. The reproduction period of red mullet was between April and August
in the Black Sea, but spawning occurred between May and August according to the histological
method. Considering the oocyte structures and oocyte diameter distributions in the histological
sections, it was observed that the red mullet in the Black Sea was a multiple spawner and had an
indeterminate fecundity. Mean and standard deviation of batch fecundity (FB) and mean relative
fecundity (FR) of red mullet during the spawning period were calculated as 4813.0±5324.0 and
124.6±124.1 g-1, respectively. The maturity sizes of females and males were 12.40 cm and 11.29
cm, respectively. To ensure the sustainability of red mullet stocks in the Black Sea, a new
management plan should be established that takes into account spawning periods, reproductive
strategies, and sizes at maturity.

Anahtar Kelimeler

Mullus barbatus, reproductive biology, maturity length (Lm50), Black Sea

Etik Beyan

etik kurul onayı gerekmemektedir.

Destekleyen Kurum

Recep Tayyip Erdoğan Üniversitesi, BAP Koordinatörlüğü

Proje Numarası

FYL-2018-868

Teşekkür

This research was supported by Recep Tayyip Erdoğan University, BAP (project number: FYL-2018-868).

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