Indonesian Fisheries Research Journal
Vol 23, No 2 (2017): (December, 2017)

POPULATION PARAMETER AND REPRODUCTIVE BIOLOGY OF INDIAN MACKEREL Rastrelliger kanagurta (Cuvier, 1817) CAUGHT BY LIFT NET IN KWANDANG WATERS, NORTH GORONTALO

Ria Faizah (Center for Fisheries Research, Jl. Pasir Putih II Ancol Timur, Jakarta)
Lilis Sadiyah (Center for Fisheries Research, Jl. Pasir Putih II Ancol Timur, Jakarta)
Moh. Fauzi (Research Institute of Marine Fisheries, Jl. Muara Baru Ujung, Komp Pelabuhan Perikanan Nizam Zachman, Penjaringan)



Article Info

Publish Date
12 Feb 2018

Abstract

Kwandang waters is one of the main base for small pelagic fisheries in Sulawesi sea in which the Indian mackerel  (Rastrelliger kanagurta) has been exploited. The objective of the research was to estimate the population parameters, exploitation rate and reproductive biology of Indian mackerel. Length frequency data were collected from PP Kwandang, between February and October 2012. Estimation of population parameters of Indian mackerel was done using FISAT II method. The results showed that growth rate as follows (K) = 0,80 year-1 , L∞=27,3 cm.  Total mortality rate (Z) = 2,72 year-1, with natural mortality (M) = 1,29 year-1 and fishing mortality (F) = 1,43 year-1 and exploitation rate (E)=0,53. Exploitation of Indian mackerel in Kwandang waters have reached its optimum level. The sex ratio of Indian mackerel was balance. The most commonly found is Gonado Maturity Stage of I. Based on the results, it is necessary to manage with  the responsible management through gradually increasing of the mesh size of the gears or restricting additional lift net or  by restricting fishing for certain seasons or declaring fish sanctuaries in certain areas, especially in spawning grounds to protect the Indian mackerel.

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Journal Info

Abbrev

ifrj

Publisher

Subject

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

Description

Indonesian Fisheries Research Journal published in Indonesia by Center for Fisheries Research. Indonesian Fisheries Research Journal publishes research results on resources, fisheries biology, management, environment related to marine, coastal and inland ...