Open AccessBiological characteristics of silver sillago (Sillago sihama Forsskal) in Bombana Water, South East Sulawesi
Author(s) -
Nur’ainun Muchlis,
Prihatiningsih,
Yoke Hani Restiangsih
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/674/1/012010
Subject(s) - fish measurement , fishery , demersal zone , fecundity , biology , whiting , zoology , fish <actinopterygii> , population , demography , sociology
Silver Sillago is a demersal fish belong to family Sillaginidae. Sampling site held in district Bombana and conducted since April-November 2018. This research aimed to analyse some aspects regarding of its species. Some aspects are concerned in this observation, e.g., length-weight, sex composition, fecundity rate, length at first capture and length at first maturity, growth, mortality rate and utility rate. These sample were obtained from fisher using trawl. Number sample were observed 5242 specimens with fork length (FL) between 6.16-28.9 cm and average of fork length around 18.13 cm. Growth pattern this species in this area is isometric, while growth of length equal with its weight. Length at first captured is 17.96 cm in fork length measurement. Also, length at first maturity is 22.66 cm. This condition show that this species cannot sustain and maintain stock equilibrium in this area due to they were captured in immature. Peak Season for spawning period of Silver sillago in this area being predicted in August. Natural Mortality (M) is 1.35, Mortality by capture is 1.45, total mortality is 2.80 while utility rate is 0.52.