INTER-SPECIFIC COMPETITION AND FISHING EFFECT TO POPULATION DYNAMIC OF BALI SARDINE (SARDINELLA LEMURU)
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.
Keywords: Stock-recruitment
relationship; fishing pressure; Bali Sardine
Author: Andhika Prima
Prasetyo, Rudy Masuswo Purwoko
Journal Code: jpperikanangg160060
