Estimation of some population parameters of red mullet (Mullus barbatus ponticus, Essipov, 1927) caught in the Black Sea

Bu çalışmada Orta Karadeniz’de avlanan barbunya (Mullus barbatus ponticus, Essipov, 1927) balıklarının boy kompozisyonundan bazı populasyon parametrelerinin belirlenmesi amaçlan-mıştır. Örneklenen toplam 699 adet balığının ortalama boyları 11.75 0.111 cm ve ortalama ağırlıkları 17.91 0.507 gr olarak bulunmuştur. Boy-ağırlık ilişkisi denklemi W 0.0107L2.9717 şeklinde tahmin edilmiş büyüme denklemi parametrelerinden asimptotik boy (L) 20.15 cm, büyüme katsayısı (K) 0.33 olarak hesaplanmıştır. Yaşama oranı (S) 0.28, gerçek ölüm oranı (A) 0.72, doğal ölüm katsayısı (M) 0.68, balıkçılık ölüm oranı (F) 0.60 olarak bulu-nurken işletme oranı (E) 0.47 olarak bulunmuştur.The aim of the present study was to estimate some population parameters of red mullets caught in Central Black Sea. Average length of the sampling size that is composed of 699 individuals was found to be as 11.75 ± 0.111 and their average weight to be as 17.91 ± 0.507 gr. W 0.0107 L 2.9717 was used to estimate the length-weight relationships. Asymptotic length (L∞) among the parameters of the growth equation was calculated as 20.15 cm whereas growth coef-ficient (K) was found to be as 0.33. Survival rate (S) was 0.28, real mortality rate (A) was 0.72, natural mortality rate (M) was 0.68, fishery mortality rate (F) was 0.60 and enterprise rate (E) was estimated to be as 0.47