Tips for practice

18. Use of ecological characteristics of target species to promote resource enhancement

When conducting resource management activities to promote the recruitment of new fisheries resources, it is effective to target fish species with the following ecological characteristics.

  • ・Fish species that lay sinking and sticky eggs: In the case of floating eggs, ocean currents can spread eggs away from the target site.
  • ・Fast-growing fish species: Species that grow slowly and take a long time to reach adulthood are less likely to show results.
  • ・Highly sedentary fish species: Species that are highly migratory will disperse outside the target site. However, fish species that migrate seasonally and grow rapidly may show an increase in their stocks in the following year’s migration.