Population Dynamics and Exploitation Rate of Coral Grouper Plectropomus leopardus in the Sarappo Islands, Pangkep Regency, South Sulawesi

MarSave International Symposium 2018: "Strengthening Marine Resilience for Sustainable Development Goals"

生态环境科学

Ernaningsih^1 ; Asbar^1 ; Danial^1 ; Hasrun, A.^1 ; Jamal, M.^1

Department of Marine Resources, Faculty of Fisheries and Marine Science, Muslim University of Indonesia, Makassar

90231, Indonesia^1

关键词: Allometric growth;    Coral reef ecosystems;    Ecological roles;    Empirical equations;    Export markets;    Frequency distributions;    Gonad index;    Size structure;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/253/1/012028/pdf
DOI  :  10.1088/1755-1315/253/1/012028

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The coral grouper Plectropomus leopardus is a fish which plays important ecological roles in coral reef ecosystems. It is also a well-known and sought-after commodity in both local and export markets, leading to pressure on wild P. leopardus populations. The aim of this study was to describe the population dynamics and determine the exploitation rate of coral grouper (P. leopardus) populations in the Sarappo Islands, Pangkep Regency South Sulawesi, Indonesia. Coral grouper samples from Sarappo Island were caught using hand-line gear. Class length and weight data were analysed using the Bhattacharya method, von Bertalanffy model and Pauly empirical equation incorporated in the FiSAT II program to determine growth rate, mortality, and exploitation rate. The length frequency distribution of coral groupers sampled had length class means ranging from 20.0 cm to 57.1 cm. The 30.1 cm midpoint class had the highest catch frequency (162 fish) while the 57.1 cm class had the lowest frequency (3 fish). The length-weight relationship indicated an allometric growth pattern (b