Identification of stocks and migration routes of spanish mackerel

The fishery for western lobster (Panulirus cygnus) has supported an annual catch of about 10,500 tonnes per annum over the last twenty years and is worth between $200-300 million per annum. The fishery has been experiencing increasing exploitation rates over time and estimates in the early 1990s...

Of the eighteen species of Scomberomorus recognized by Collette and Russo (1979), the migratory behavior of only three species S. cavalla (king mackerel), S. maculatus (Spanish mackerel) and S. commerson (the narrow-barred Spanish mackerel) have been studied by tagging programmes. In these instances...

This project reports on: 1) our detailed evaluation of current methodologies for otolith chemical analysis, and our recommended procedures when electron probe microanalysis is used for stock delineation in finfish 2) our assessment of the accuracy and precision of otolith probe microanalysis...