Printer Friendly

U.S. and Japan hold seminar on rockfish.

Scientists from the United States, Japan, and Canada converged in Honolulu, Hawaii, during 26-30 June 1989 to Wk about rockfish, the common name for members of the scorpionfish genus Sebastes. The rockfish seminar was sponsored by the National Science Foundation and the Japan Society for the Promotion of Science, according to George W. Boehlert, Director of the NMFS Southwest Fisheries Center's Honolulu Laboratory. Boehlert coorganized the seminar, along with Juro Yamada from the University of Hokkaido in Hakodate, Japan.

The 24 scientists attending the meeting presented papers on the reproduction, physiology, life history, and aquaculture of rockfish. Many of the papers resulted from a 4-year cooperative research program between U. S. and Japanese scientists.

With about 106 species worldwide, rockfish are found in temperate, and Arctic regions. One rockfish species, S. capensis, even occurs south of the equator. Rockfish give birth to live young after brooding (that is, incubating their eggs) for about I month. This makes their reproduction very interesting to scientists.

Some papers presented at the conference examined the feasibility of raising commercially important rockfish in hatcheries, just as salmon, trout, and other fish species are being raised for later release in the wild. Pilot studies in Japan-where raising young rockfish is much more advanced than in the United States-have raised rockfish to a viable size and then released them in the open ocean. Later, these rockfish may be captured as adults by commercial fishermen. Such hatchery releases may help prevent natural populations of rockfish from becoming depleted, but have not been proven to be effective as yet.

According to Boehlert, the meeting gave scientists an opportunity to compare the research being done by the different countries and to discuss the possibility of conducting cooperative research in the future. One interesting point made at the meeting was that, based on the published literature, the U.S. scientists tend to direct more of their research toward field ecology studies and fisheries research, whereas Japanese scientists were more likely to study reproductive physiology and aquaculture.

The papers presented at the meeting are being reviewed for publication and will be edited by Boehlert and Yamada. The meeting was held at the East-West Center Thomas Jefferson Hall on the University of Hawaii-Manoa campus.
COPYRIGHT 1989 U.S. Department of Commerce
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 1989 Gale, Cengage Learning. All rights reserved.

Article Details
Printer friendly Cite/link Email Feedback
Publication:Marine Fisheries Review
Date:Jun 22, 1989
Previous Article:Awards recognize top NOAA employees.
Next Article:Drift gill nets banned for some S.E. mackerels.

Related Articles
Shortraker rockfish, Sebastes borealis, observed from a manned submersible.
Declining Rockfish Lengths in the Monterey Bay, California, Recreational Fishery, 1959-94.
Habitat associations of deep-water rockfishes in a submarine canyon: an example of a natural refuge.
Identification of rockfish (Sebastes spp.) by restriction site analysis of the mitochondrial ND-3/ND-4 and 12S/16S rRNA gene regions.
The potential role of marine reserves in the management of shortraker rockfish (Sebastes borealis) and rougheye rockfish (S. aleutianus) in the Gulf...
Relationship between abundance of juvenile rockfishes (Sebastes spp.) and environmental variables documented off northern California and potential...
Changes in body composition and fatty acid profile during embryogenesis of quillback rockfish (Sebastes maliger).
An ecological analysis of rockfish (Sebastes spp.) assemblages in the North Pacific Ocean along broad-scale environmental gradients.

Terms of use | Copyright © 2017 Farlex, Inc. | Feedback | For webmasters