Estimating age structure of Liocarcinus depurator along the western Black Sea coast of Türkiye using the Bhattacharya method
Öz
A total of 2.233 Liocarcinus depurator samples were collected during beam trawl surveys along the northwestern Black Sea coast of Türkiye to analyse the population's age structure. The male-to-female ratio is 2:1. Length-frequency distributions were estimated for four age groups using the Bhattacharya method, with carapace lengths of 0+ = 15.51 mm, I+ = 23.76 mm, II+ = 31.29 mm, and III+ = 36.49 mm for males, and 0+ = 15.35 mm, I+ = 21.36 mm, II+ = 27.18 mm, and III+ = 30.50 mm for females. For all sexes combined, lengths were 0+ = 15.35 mm, I+ = 22.65 mm, II+ = 30.81 mm, and III+ = 36.59 mm. One-way ANOVA showed significant differences in mean length among age groups for the pooled sample, as well as for males and females separately (all p < 0.001). Independent t-tests found no significant difference between sexes in age group 0 (p = 0.59), but significant differences in age groups I, II, and III (p < 0.05 for all). Males were generally larger than females in older age groups, indicating apparent sexual dimorphism and different growth patterns in the population.
Anahtar Kelimeler
Age structure, Bhattacharya method, Liocarcinus depurator, Sexual dimorphism, Turkish Black Sea coast
Destekleyen Kurum
Recep Tayyip Erdoğan Üniversitesi
Proje Numarası
RTEU BAP FYL 2018-856
Etik Beyan
Yukarıda bilgileri yer almakta olan araştırmamızın etik kurul izni gerektirmeyen çalışmalar arasında yer aldığını beyan ederiz.
Teşekkür
Bu projede yardım ve desteklerinden dolayı “Karadeniz Araştırmaları” gemisinin mürettebatına en derin şükranlarımızı sunarız.
Kaynakça
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