AI Summary & Key Takeaways
AI InsightIn addition, total mortality rate Z=1.68, natural mortality rate M=0.49, fisheries mortality rate F=1.19 and exploitation rate E=0.71 were estimated.
📌 3 Key Takeaways
Abstract
This study was carried out between September 2002 to April 2003 in Karata? coasts (Iskenderun Bay). A total of 210 Spicara smaris specimens were trawled by monthly sampling. Age composition varied from I to V.age group. The mean total length and total weight values ranged from 6.10-17.80 cm and 2.14-59.65 g with mean value 9.831.56 cm and 9.745.03 g, respectively. The length-weight relationship was W=0.0066*L3.1879 and the von Bertalanffy growth functions were determined as L=22.76 cm, K=0.213 year-1 and to=-0.805 year. In addition, total mortality rate Z=1.68, natural mortality rate M=0.49, fisheries mortality rate F=1.19 and exploitation rate E=0.71 were estimated.
Özet
Bu çaly?ma, Eylül 2002-Nisan 2003 tarihleri arasynda, Karata? Kyyylary'nda (Yskenderun Körfezi) aylyk trol çekimleri yapylarak gerçekle?tirilmi?tir. Elde edilen 210 bireyin I-V ya? gruplary arasynda de?i?im gösterdi?i belirlenmi?tir. Örneklenen bireylerin boylary 6.10-17.80 cm ve a?yrlyk de?erleri 2.14-59.65 g arasynda de?i?im göstermekte olup; ortalama boy ve a?yrlyk de?erleri ise syrasyyla 8.952.80 cm ve 10.0211.28 g olarak hesaplanmy?tyr. Spicara smaris için boy-a?yrlyk ili?kisi W=0.0066*L3.1879 ve von Bertalanffy boyca büyüme sabitleri L=22.76 cm, K=0.213 yyl-1 ve to=-0.805 yyl olarak hesaplanmy?tyr. Ayryca toplam ölüm oranlarynyn üssi katsayysy Z= 1.68, do?al nedenlerle olan ölüm orany M=0.49 ve balykçylyk nedeniyle olan ölüm oranynyn üssi katsayysy ise F=1.19 ve stoktan yararlanma düzeyi E=0.71 olarak hesaplanmy?tyr. Anahtar Kelimeler: ,, , ,