INTER-SPECIFIC COMPETITION AND FISHING EFFECT TO POPULATION DYNAMIC OF BALI SARDINE (SARDINELLA LEMURU)

Authors

  • Andhika Prima Prasetyo Center for Fisheries Research and Development, Agency for Marine and Fisheries Research and Develoment, Ministry for Marine Affairs and Fisheries http://orcid.org/0000-0002-7412-8432
  • Rudy Masuswo Purwoko Center for Fisheries Research and Development, Agency for Marine and Fisheries Research and Develoment, Ministry for Marine Affairs and Fisheries

DOI:

https://doi.org/10.15578/ifrj.22.2.2016.85-90

Keywords:

Stock-recruitment relationship, fishing pressure, Bali Sardine

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.

 

Author Biography

Andhika Prima Prasetyo, Center for Fisheries Research and Development, Agency for Marine and Fisheries Research and Develoment, Ministry for Marine Affairs and Fisheries

I am Researcher at the Center for Fisheries Research and Development, Ministry for Marine Affairs and Fisheries - Republic of Indonesia. Our major concern is exploring science on fisheries management and conservation in Indonesia's waters. My expertise is fisheries quantitative and modelling to support stock assessment of Indonesian fisheries and have participated in various research funded by the national government and international organisations. I was appointed as research coordinator for international joint-research funded by GEF (Global Environment Fund) in 2013. This research deals with social engineering by formulating science finding to practical measures (such as popular media and legislation). Our efforts are recognised and fully supported by the local government of North Kalimantan Province.

References

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Published

2017-01-26

Issue

Vol. 22 No. 2 (2016): (December, 2016)

Section

Articles

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Indonesian Fisheries Research Journal is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.