Oregon's commercial fishery for albacore tuna (Thunnus alalunga)
is large, valuable, and variable. Little is known, however, about the
oceanographic factors which determine abundance and distribution of
albacore.
Primarily using logbook data contributed by fishermen, this study
compares albacore catches with selected ocean conditions. The study
is limited to troll-caught...
The relationship between sea level and wind stress in a region of
known upwelling was studied for an eleven-month period during
1933-34.
Sea level data, obtained from observations taken by the Coast and
Geodetic Survey, were processed to remove astronomic tidal constituents
and inverted barometer effect. Regression analysis was used...
The purpose of this study is to examine the hypothesis that diel variations occur in the catches of albacore by boats trolling surface jigs off Oregon. Although albacore fishermen talk of "morning bites" and "evening bites," no published data exist, to our knowledge, confirming these trends.
Studies on the feeding...
Revised August 1977. 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
Published October 1968. 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
Revised October 1972. 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
Published June 1979. 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
Published May 1978. 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
Recent attention has focused on the high rates of annual carbon sequestration in vegetated coastal ecosystems—marshes, mangroves, and seagrasses—that may be lost with habitat destruction (‘conversion’). Relatively unappreciated, however, is that conversion of these coastal ecosystems also impacts very large pools of previously-sequestered carbon. Residing mostly in sediments, this ‘blue...