Population dynamics of narrow-barred Spanish mackerel Scomberomorus commerson (Lacepede, 1800) in Bone Bay waters, South Sulawesi, Indonesia

Spanish mackerel is an economically important fish in Bone Bay waters, Indonesia. The population is declining due to overfishing; thus, research on population dynamics is needed. The study aims to estimate the dynamic parameters of the Spanish mackerel populations. The fork length was measured for 5...

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Bibliographic Details
Published inAquaculture, Aquarium, Conservation & Legislation Vol. 12; no. 3; pp. 908 - 917
Main Authors Mallawa, Achmar, Amir, Faisal
Format Journal Article
LanguageEnglish
Published Cluj-Napoca Bioflux SRL 01.06.2019
Subjects
Age
Boats
Bones
Commercial fishing
Data analysis
Exploitation
Fish
Fish populations
Fisheries management
Fishing
Fishing lines
Fishing mortality
Fishing nets
Fork length
Gillnets
Growth rate
Information management
Mackerel
Marine fishes
Mortality
Natural mortality
Nets
Overfishing
Parameter estimation
Parameters
Performance indices
Population
Population decline
Population dynamics
Recruitment
Recruitment (fisheries)
Scomberomorus commerson
Software
Trolling
Iran
Java Sea
Indian Ocean
Italy
Persian Gulf
Oman
Sulawesi
Indonesia
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Summary:Spanish mackerel is an economically important fish in Bone Bay waters, Indonesia. The population is declining due to overfishing; thus, research on population dynamics is needed. The study aims to estimate the dynamic parameters of the Spanish mackerel populations. The fork length was measured for 551 fish, captured by trolling lines, hand lines, surface gill nets and boat lift nets, from January to December 2018. Von Bertalanffy's growth parameters were estimated using ELEFAN-1 with the help of the FISAT II software. Natural mortality was determined by the Pauly method. Total and fishing mortality were also determined. The yield per recruitment (Y/R) was determined by the Beverton and Hold method. The infinity length and growth rate were 167 cm and 0.55 year-1, respectively. The growth performance index was 4.19. Total, natural and fishing mortality and exploitation rates were 1.84, 0.76, 1.08 and 0.59 year-1, respectively, without an optimal recruitment process. The results can be used as primary information when managing Spanish mackerel in the Bone Bay waters.
ISSN:1844-8143
1844-9166