. Commercial fisheries review. Fisheries; Fish trade. Fig, 1 - BCF's "George B. ; The vessels participating in the spring cruise are the BCF Seattle Biological Labora- tory's R/V "George B. Kelez" (550 tons) and the Japanese research vessels "Wakashio-Maru" (150 tons) and "Hokko-Maru" (220 tons)--all veterans of research in North Pacific waters. The George B, Kelez left Seattle on April 2 and will return in early July. The Japanese ves- sels reached the fishing grounds in late April and will stay until early June. Purpose of Cruise The purpose of t


. Commercial fisheries review. Fisheries; Fish trade. Fig, 1 - BCF's "George B. ; The vessels participating in the spring cruise are the BCF Seattle Biological Labora- tory's R/V "George B. Kelez" (550 tons) and the Japanese research vessels "Wakashio-Maru" (150 tons) and "Hokko-Maru" (220 tons)--all veterans of research in North Pacific waters. The George B, Kelez left Seattle on April 2 and will return in early July. The Japanese ves- sels reached the fishing grounds in late April and will stay until early June. Purpose of Cruise The purpose of the cooperative cruise is to investigate the distribution of salmon and the associated oceanographic features south of the Aleutian Islands; the hypotheses concerning the relation between the distribution of salmon and their environment are being tested. Em- phasis is on the distribution and migration of sockeye salmon from Bristol Bay in relation to the Alaskan Stream and central Alaskan Gyre. The migration routes of these salmon and surface currents are illustrated infigure Fig, 2 - Salmon migration routes and surface currents of the study area (shaded) in the central North Pacific Ocean. Under INPFC provisions, Japan (and her mothership fishing fleet) agreed in 1953 to ab- stain from fishing for salmon east of long, 175° W. Since then, however, we have found that sockeye salmon bound for Bristol Bay migrate past the abstention line. We hope that research in this area will add to our knowledge of the migration processes--and enable us to fore- cast the proportion of the run available to the Japanese fishery each year. Cruise tracks of the vessels are illustrated in figures 3 and 4. The two Japanese vessels are collecting data on fish distribution in the western part of the sampling area; the U. S. vessel is collecting oceanographic data for all areas, as well as fishery data on the eastern section. Fishing Gear Fishing gear are gill nets. The U. S. ves- sel is fishing a b


Size: 1962px × 1274px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., book, bookcentury1900, booksubjectfisheries, booksubjectfishtrade