Ingress and settlement in the nassau grouper, epinephelus striatus (pisces: serranidae), with relationship to spawning occurrence

摘要

Ingressing pelagic juvenile Epinephelus striatus were collected in tidal channel at Lee stocking Island, Exumas, Bahamas during both January 1989 and 1990, starting 37 days after the December full moon. They subsequently recruited for only about 1 week, generally at night on incoming tides with maximal densities of 1 fish per 1000-3000 m~3 water. Otolith increment back dating to spawning dates of pelagic and benthic juvenile E. striatus in the Exumas indicated nearly all spawning dates were near the full moon of December.