Age, growth, mortality, and exploitation rate of blueline snapper, Lutjanus coeruleolineatus (Actinopterygii: Perciformes: Lutjanidae), from Dhofar Governorate, Sultanate of Oman SCIE SCOPUS

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Title
Age, growth, mortality, and exploitation rate of blueline snapper, Lutjanus coeruleolineatus (Actinopterygii: Perciformes: Lutjanidae), from Dhofar Governorate, Sultanate of Oman
Author(s)
Almamari, Dawood; Rabia, Said; Park, Joo Myun; Jawad, Laith A.
Alternative Author(s)
박주면
Publication Year
2021-06
Abstract
The blueline snapper, Lutjanus coeruleolineatus (Ruppell, 1838), is a significant commercial fish species harvested from the traditional fishery in the Sultanate of Oman. Deficient data on this species, however, make the management strategies challenging, especially in fisheries ecology. A total of 978 specimens were obtained from Dhofar Governorate off the coast of the Arabian Sea during the period between February 2015 and March 2016. In total, 296 sectioned otoliths were analyzed and growth was estimated from non-seasonal growth by using von Bertalanffy method. The parameters of von Bertalanffy growth function, total mortality (Z), natural mortality (M), fishing mortality (F), and exploitation rate (E) were determined and compared with those for Lutjanidae fishes elsewhere. The age structure of male fishes was between 1 and 14 years for males while the age of females ranged from 1 to 18 years. Growth rate (K) was 0.21 y(-1) and 0.16 y(-1) for males and females, respectively. The hypothetical length of female (L-infinity = 46 cm) was relatively higher than that of male (L-infinity = 42 cm). The natural mortality (M) was 0.296, total mortality (Z) was 0.372, fishing mortality was 0.076, and exploitation rate (E) was estimated as 0.2. The presently reported study is conducted to examine this fish in relation to growth parameters by analyzing otolith structure. The results of the presently reported study will contribute towards planning the regional fishery management policies in Oman.
ISSN
0137-1592
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/41525
DOI
10.3897/aiep.51.63572
Bibliographic Citation
ACTA ICHTHYOLOGICA ET PISCATORIA, v.51, no.2, pp.159 - 166, 2021
Publisher
PENSOFT PUBLISHERS
Subject
GREAT-BARRIER-REEF; BLACKSPOT SNAPPER; RED SNAPPER; NATURAL MORTALITY; MUTTON SNAPPER; MAFIA ISLAND; EAST-COAST; REPRODUCTION; VALIDATION; FULVIFLAMMA
Keywords
Arabian Sea; blueline snapper; Dhofar; exploitation rate; mortality; otolith
Type
Article
Language
English
Document Type
Article
Publisher
PENSOFT PUBLISHERS
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