| dc.description.abstract | Bloated Fish (Rastrelliger spp.) one type of economic fish in important for
the community, this type is found in the waters of the Strait of Malacca. Due to
the high demand of consumers in the fish market, causing fishermen to make large
scale arrest. This study has objectives on accesing growth and exploitation rates of
Bloated Fish in Malacca Strait, Medan Belawan District, North Sumatera
Province. This study was held in three months, from March to May 2017. Data
analysis used the ELEFAN I method (Electronic Lenght Frequencys Assesment
Tool) by using FiSAT II (FAO-ICLARM Fish Stock Assesment Tool) software.
The samples of Bloated Fish scad are 361. The growth pattern of Bloated Fish is
negative allometric. The range of condition factor are 0,602 – 1,294. The range of
length frequency distribution are 175 – 182 mm. Based on the growth equation of
Von Bertalanffy Bloated Fish obtained during the research in the waters of the
Straits of Malacca is Lt = 217,35{1-e-0,75(t+0,015)} which means the asymptothed
length (L∞) of Bloated Fish (Rastrelliger spp.) 217,35 growth coefficient (K) of
0,75 per year and the theoic age (t0) Bloated Fish that is equal to -0,015. Total
mortality (Z) of Bloated Fish (Rastrelliger spp.) of 2,837 per year. Estimation of
natural mortality rate (M) of Bloated Fish (Rastrelliger spp.) of 0,891 per year and
mortality due to catch (F) of 1,946 per year. So that the result of alleged
exploitation rate of 0,68 per year. | en_US |
