Scienceline Publications Journal of Life Science and Biomedicine 2251-9939 7 1 2017 January The Biology Profile of Sardinella lemuru in Southern Coast of East Java and Bali Strait, Indonesia 06 12 https://jlsb.science-line.com/attachments/article/50/J.%20Life%20Sci.%20Biomed.%207(1)%2006-12,%202017.pdf EN Indra Pramana Putra Fisheries and Marine Science Faculty, University of Brawijaya, Indonesia Aida Sartimbul Fisheries and Marine Science Faculty, University of Brawijaya, Indonesia Marine Resources Exploration and Management (MEXMA) Research Group, University of Brawijaya, Indonesia Sri Widyarti Mathematics and Life Science Faculty, University of Brawijaya, Indonesia Sardinella lemuru is a species of fish on East Java which has pressure from overfishing and also climate change. This condition can impact their biology profile. The aim of this study was to determine the profile biology (BP) of S. lemuru on Southern Coast of East Java. The BP parameters like morphometric and meristic analysis, observation sex ratio, level maturity of gonad and gonad maturity index, were examined. The results showed that the body of S. lemuru was compressed or streamline and has blue–green colors on its dorsal. The scale type of S. lemuru was cycloid. Females S. lemuru were dominant on Southern Coast of East Java. Gonad Maturity Level and Gonad Maturity Index showed that S. lemuru from Bali Strait has a higher number than S. lemuru from Southern Coast of Malang. Since S. lemuru from both origins had similarities in its morphology and gonad, it was suspected that S. lemuru was migrating from Bali Strait to Southern Coast of Malang. Further study should be conducted so that the data could more represent biology profile of S. lemuru in southern coast of East Java by adding genetical analysis. Sardinella lemuru South Malang Coast and Bali Strait of East Java Biology Profile