Growth characteristics of Uranoscopus scaber Linnaeus 1758, inhabiting the Iskenderun Bay (Northeastern Mediterranean). (20th December 2020)

• Record Type: Journal Article
• Authors: Başusta, Nuri; Özmen, Mustafa M.
• Is Part Of: Journal of applied ichthyology. Volume 36:Number 6(2020:Dec.)
• Page Start: 875
• Page End: 879
• Publication Date: 2020-12-20
• Subjects: Fishes -- Periodicals; Fish culture -- Periodicals; Fisheries -- Periodicals; Ichthyology -- Periodicals; 597
• DOI: 10.1111/jai.14134
• Languages: English
• ISSNs: 0175-8659

Abstract

Summary: This study aimed to determine the age and some growth characteristics of Atlantic stargazer ( Uranoscopus scaber ) from Iskenderun Bay (Northeastern Mediterranean). For this purpose, a total of 150 Atlantic stargazer ranging in size from 9.1 to 28.0 cm in total length (weight: 11.7–345.7 g) were collected as by‐catch from a commercial trawl fishing boat at a depth of 80–100 m between May 2015 and January 2016. The bottom trawl gear used was equipped with a 44 mm stretched mesh size net at the cod‐end. The percentage of females and males were 46.7% and 53.3% respectively. The total length–weight relationships equation with coefficient of determination ( R 2 ) were found as W = 0.011*TL 3.131, R 2 = .9728, for all individuals, W = 0.015*TL 3.021, R 2 = .9512 for females and W = 0.0102*TL 3.136, R 2 = .9553 for males. By using the von Bertalanffy equation, the growth parameters of Atlantic stargazer were estimated to be L ∞ = 42.35 cm, k = 0.098, t 0 = −1.8474 for all individuals; L ∞ = 36.92 cm, k = 0.138, t 0 = −1.2693 for females and L ∞ = 38.77 cm, k = 0.1, t 0 = −2.334 for males. In this study, age reading was done by two independent readers and index of average percentage error (IAPE) was calculated as 6.1%. The highest condition factor value calculated as 1.81 in the age group 6 and the lowest condition factor value was calculated as 1.48 in the age group 1.