Meta-analyses of field studies have shown that biomass, density, species richness, and size of organisms protected by no-take marine reserves generally increase over time. The magnitude and timing of changes in these response variables, however, vary greatly and depend upon the taxonomic groups protected, size and type of reserve, oceanographic...
Full Text:
Multiple Reserves within a
Network of Marine Protected Areas in Temperate Waters
Starr, R. M., Wendt, D
Diets of juvenile coho Oncorhynchus kisutch and Chinook O. tshawytscha salmon
are made up primarily of winter-spawning fish taxa in the late-larval and early juvenile stages that
are undersampled in plankton and larger trawl nets. Although we have no direct measure of the
availability of fish prey important to juvenile...
This dissertation for the degree of Doctor of Philosophy in Public Policy addresses two main research questions. On a macro-level it aims to answer how gender ideologies, as seen in attitudes towards the gendered division of labor, develop over time in the context of changing family policy regimes. On a...
High-latitude phytoplankton blooms support productive fisheries and play an important role in oceanic uptake of atmospheric carbon dioxide. In the subarctic North Atlantic Ocean, blooms are a recurrent feature each year, while in the eastern subarctic Pacific only small changes in chlorophyll (Chl) are seen over the annual cycle. Here...
Full Text:
Atlantic and Pacific
Ocean
Toby K. Westberry1#, Patrick Schultz2, John P. Dunne3, Michael R. Hiscock4
High-latitude phytoplankton blooms support productive fisheries and play an important role in oceanic uptake of atmospheric carbon dioxide. In the subarctic North Atlantic Ocean, blooms are a recurrent feature each year, while in the eastern subarctic Pacific only small changes in chlorophyll (Chl) are seen over the annual cycle. Here...
Full Text:
the subarctic
Atlantic and Pacific Ocean
Toby K. Westberry1, Patrick Schultz2, Michael J. Behrenfeld1
The trophic habits, size and condition of yearling Chinook salmon (Oncorhynchus tshawytscha) caught early in their marine residence were examined during 19 survey years (1981–1985; 1998–2011). Juvenile salmon consumed distinct highly piscivorous diets in cold and warm ocean regimes with major differences between ocean regimes driven by changes in consumption...