Inter-specific competition and fishing effect to population dynamic of Bali sardine (sardinella lemuru)

Prasetyo, A; Purwoko, RW

Abstract

Stock-recruitment relationship of Bali sardine was investigated based on Beverton-Holt model by assuming inter-specific competition. Model is modified to incorporate the effect of fishing pressure that is density-independent to population dynamic by developing scenario fishing on adult and/or juvenile population. The results show that harvested adult the dramatic decline of recruitment supply. However, harvested juvenile is led to the positive response to population size, as an increase in fishing mortality rate will reduce competition mortality rate. Precautionary approach required by considering bipartite life cycle.

Citation

Prasetyo, A., & Purwoko, R. (2016). Inter-specific competition and fishing effect to population dynamic of Bali sardine (sardinella lemuru). Indonesian Fisheries Research Journal (Jakarta), 22(2), https://doi.org/10.15578/ifrj.22.2.2016.85-90

• Journal Article Type: Article
• Acceptance Date: Dec 16, 2016
• Publication Date: Dec 1, 2016
• Deposit Date: Feb 14, 2023
• Publicly Available Date: Feb 14, 2023
• Journal: Indonesian Fisheries Research Journal
• Print ISSN: 0853-8980
• Volume: 22
• Issue: 2
• DOI: https://doi.org/10.15578/ifrj.22.2.2016.85-90
• Publisher URL: http://doi.org/10.15578/ifrj.22.2.2016.85-90