Ein Kultursystem wird beschrieben, das zur Zucht von Decapodenlarven und anderen kleineren Wassertieren geeignet ist. Es besteht aus einem rechteckigen Zuchtgefäß mit schräg abfallendem Boden, an dessen seichtem Ende Wasser einströmt, so daß eine abwärtsgerichtete Bodenströmung entsteht. An dem tiefen Ende des Zuchtbeckens wird durch eingeleitete Luft das Bodenwasser nach...
Since 1962 persons desiring to harvest intertidal nonfood invertebrates in permit areas or in excess of personal-use bag limits have been required to obtain a collecting permit from the Fish Commission and report the number of animals collected and areas where taken. This report summarizes collecting activities for 1972.
Razor clams were sampled from March through September. Due to lack of help, work was confined to Clatsop County beaches. The sport and commercial catches were sampled for numbers and age composition of the clams harvested and the distribution and numbers of diggers. The summer clam closure and sampling program...
Published May 1974. A more recent revision exists. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
"Prepared for the State/Federal Dungeness Crab Management Program. May 1974." "One of the initial objectives of the State/Federal Dungeness Crab Management Program is to evaluate crab mortality caused by certain fishery practices. The areas of most concern include mortality caused by trawling, handling of softshell and sublegal crabs, lost pots...
"We monitored oyster mortality in Yaquina, Coos, and Tillamook bays from July 1966-March 1972. Pacific oyster (Crassostrea gigas) mortality in Yaquina Bay appears to be lower than in any other reporting area on the Pacific Coast, generally less than 2% per year. Native oyster (Ostrea lurida) mortality ranged from 9.6-28.2%....
Published May 1974. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Reprinted May 1974. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published May 1974. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the Sea Grant Catalog: http://seagrant.oregonstate.edu/publications