Selectivity is a fishing gear characteristic capable of catching fish specific size and species from the existing population distribution. Mesh one important factors that influence gillnets’ selectivity, because different length-classes are caught by them. This report focuses on selectivity two mesh sizes gillnets (8.89 cm 10.16 cm) mackerel's catch constructing gillnet in Sungailiat waters. Ex...

Though the narrow-barred Spanish mackerel ( Scomberomorus commerson ) is considered to be migratory, species nevertheless thought locally overexploited in northwest Indian Ocean. At regional level, this local depletion a major concern for food security. As population structure and connectivity between sub-populations are poorly understood species, we examined spatio-temporal dynamics of via ele...

..................................................................................................... 1 1.0 Introduction .................................................................................................... 2 2.0 Collection of otoliths ........................................................................................ 3 3.0 Otolith preparation and sectioning ...................