The effects of early weaning on the behaviour, growth and survival of Atlantic cod (Gadus morhua) and fat snook (Centropomus parallelus) larvae.

摘要

Live food production is one of the most costly activities during the intensive culture of the larval stages of marine fish. But the culture of marine fish larvae requires extensive use of live food to produce healthy larvae. However, the process of weaning larvae from a live to a dry diet results in loss of growth and increased in mortality.;In this thesis, I conducted weaning trials to improve the larviculture protocols of two marine species, the Atlantic Cod (Gadus morhua), a temperate marine species, and Fat Snook (Centropomus parallelus ), a tropical marine fish. Several combinations of live and inert food were examined as feeding protocols, to determine the earliest point at which larvae of these species can be successfully weaned from Artemia onto a dry diet.;Two weaning experiments were conducted with Atlantic cod larvae. (Abstract shortened by UMI.).