Growth Characteristics of Long-Nosed Skate (Linnaeus, 1758) Inhabiting the Northeastern Mediterranean Sea.

Animals (Basel)

Graduate School of Natural and Applied Sciences, Firat University, 23119 Elazig, Turkey.

Published: December 2022

AI Article Synopsis

  • The study investigates the age and growth characteristics of long-nose skates in the Northeastern Mediterranean Sea by analyzing 255 specimens collected from commercial fishing.
  • Growth parameters were estimated using mathematical models, revealing a maximum growth of 9.33 cm at ages 5-6, with minimal growth observed in the 11-12 age group.
  • This research provides the first growth data for long-nose skates in this region, contributing to the existing literature for better comparisons in future studies.

Article Abstract

This study aims to determine the age and growth characteristics of living in the Northeastern Mediterranean Sea and to present data that can provide a comparison with previous studies on the same subject. A total of 255 long-nose skates at a total length of 12.2-93.5 cm and weight of 8.34-3828 g were collected as non-target species from a commercial fishing boat. The male-female ratio was determined as 1:1.27. Using the von Bertalanffy equation and the Gompertz or logistic growth models, the growth parameters of were estimated as L∞ = 154.0, K = 0.064, t = -1.622; L∞ = 104.0, K = 0.35, = 4.99; L∞ = 128.40, K = 0.19, = 4.39 for all individuals, respectively. Maximum absolute growth was calculated as 9.33 cm at 5-6 years of age. Maximum relative growth at 1-2 years of age was estimated as 36.39%. Both absolute and relative growth were minimal in the 11-12 age group. The highest condition factor value was estimated as 0.416 in the 8-year-old group. As a result, the growth data of long-nose skates were obtained for the first time in the Northeastern Mediterranean Sea.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9740906PMC
http://dx.doi.org/10.3390/ani12233443DOI Listing

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