REARING OF SABLEFISH (ANOPLOPOMA FIMBRIA) FROM EGG TU JUVENILE
W. Craig Clarke, J.O.T. Jensen, J. Klimek, Z.
Pakula-1999
Bulletin of the Aquaculture Association of Canada,
99-4: 11-12
Summary:
The sablefish Anoplopoma fimbria occurs in the North
Pacific Ocean and is valued for its tender, rich flesh. Commercial
aquaculture of this species has been constrained by a lack of technology to
produce juveniles for grow out. Juvenile sablefish were produced from eggs
for the first time in 1998. Fertilized eggs were incubated in upwelling
incubators at 6°C and larvae were held in the incubators during the yolk
sac phase. In preparation for feeding, larvae were transferred to 2-m³
tanks greened with Isochrysis galbana (T-Iso strain). Enriched rotifers were
offered at first and enriched Artemia later. The highest mortality was
experienced during the first month after the time of first feeding. After
notochord flexion, mortality decreased and the growth rate increased.
Sablefish are readily weaned onto formulated diets and grow rapidly,
reaching a weight of 700 g within their first year.
(Department of Fisheries and Oceans, Pacific
Biological Station, Nanaimo, BC, Canada, V9R 5K6, e-mail: clarkec@pac.dfo-mpo.gc.ca)