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Articles 1 - 5 of 5
Full-Text Articles in Life Sciences
A Multidecade Experiment Shows That Fertilization By Salmon Carcasses Enhanced Tree Growth In The Riparian Zone, Thomas P. Quinn, Helfield M. James, Catherine S. Austin, Rachel A. Hovel, Andrew Godard Bunn
A Multidecade Experiment Shows That Fertilization By Salmon Carcasses Enhanced Tree Growth In The Riparian Zone, Thomas P. Quinn, Helfield M. James, Catherine S. Austin, Rachel A. Hovel, Andrew Godard Bunn
Environmental Sciences Faculty and Staff Publications
As they return to spawn and die in their natal streams, anadromous, semelparous fishes such as Pacific salmon import marine‐derived nutrients to otherwise nutrient‐poor freshwater and riparian ecosystems. Diverse organisms exploit this resource, and previous studies have indicated that riparian tree growth may be enhanced by such marine‐derived nutrients. However, these studies were largely inferential and did not account for all factors affecting tree growth. As an experimental test of the contribution of carcasses to tree growth, for 20 yr, we systematically deposited all sockeye salmon (Oncorhynchus nerka) carcasses (217,055 individual salmon) in the riparian zone on one …
Nutrient And Phytoplankton Dynamics On The Inner Shelf Of The Eastern Bering Sea, Calvin W. Mordy, Allan H. (Allan Houston) Devol, Lisa B. Eisner, Nancy Kachel, Carol A. Ladd, Michael W. Lomas, Peter Proctor, Raymond Nicholas Sambrotto, David Shull, Phyllis Jean Stabeno, Eric Wisegarver
Nutrient And Phytoplankton Dynamics On The Inner Shelf Of The Eastern Bering Sea, Calvin W. Mordy, Allan H. (Allan Houston) Devol, Lisa B. Eisner, Nancy Kachel, Carol A. Ladd, Michael W. Lomas, Peter Proctor, Raymond Nicholas Sambrotto, David Shull, Phyllis Jean Stabeno, Eric Wisegarver
Environmental Sciences Faculty and Staff Publications
In the Bering Sea, the nitrogen cycle near Nunivak Island is complicated due to limited nutrient replenishment across this broad shelf, and substantial nitrogen loss through sedimentary processes. While diffusion at the inner front may periodically support new production, the inner shelf in this region is generally described as a regenerative system. This study combines hydrographic surveys with measurements of nitrogen assimilation and benthic fluxes to examine nitrogen cycling on the inner shelf, and connectivity between the middle and inner shelves of the southern and central Bering Sea. Results establish the inner shelf as primarily a regenerative system even in …
Symbiont Presence And Identity Influence Life History Strategies Of A Temperate Sea Anemone, Brian L. Bingham, James L. Dimond, Gisele Muller-Parker
Symbiont Presence And Identity Influence Life History Strategies Of A Temperate Sea Anemone, Brian L. Bingham, James L. Dimond, Gisele Muller-Parker
Environmental Sciences Faculty and Staff Publications
Along the North American Pacific coast, the common intertidal sea anemone Anthopleura elegantissima engages in facultative, flexible symbioses with Symbiodinium muscatinei (a dinoflagellate) and Elliptochloris marina (a chloro- phyte). Determining how symbiotic state affects host fitness is essential to understanding the ecological significance of engaging in such flexible relationships with diverse symbionts. Fitness consequences of hosting S. muscatinei, E. marina or negligible numbers of either symbiont (aposymbiosis) were investigated by measuring growth, cloning by fission and gonad development after 8.5 – 11 months of sustained exposure to high, moderate or low irradiance under seasonal environmental conditions. Both symbiotic state …
Light Influences Feeding And Growth Of Echinoplutei., Lindsey Milonas, Bruno Pernet, Brian L. Bingham
Light Influences Feeding And Growth Of Echinoplutei., Lindsey Milonas, Bruno Pernet, Brian L. Bingham
Environmental Sciences Faculty and Staff Publications
Because planktonic invertebrate larvae may be food-limited, anything that increases feeding and digestive efficiency should increase the chances of larval survival to metamorphosis. As light directly enhances both feeding and digestion in some planktonic heterotrophic protists, we hypothesize that similar processes might occur in the larvae of marine invertebrates. We studied the direct effects of light on feeding and development in sea urchin larvae (Strongylocentrotus droebachiensis, S. franciscanus and sand dollar Dendraster excentricus). Larvae were placed in 12:12 h light:dark cycles or in complete darkness and ingestion rates were measured. We monitored larval morphology during the first …
Increasing Diversity In The Marine Sciences Through The Minorities In Marine Science Undergraduate Program, Brian L. Bingham, Stephen D. Sulkin, Suzanne L. Strom, Gisèle Muller-Parker
Increasing Diversity In The Marine Sciences Through The Minorities In Marine Science Undergraduate Program, Brian L. Bingham, Stephen D. Sulkin, Suzanne L. Strom, Gisèle Muller-Parker
Environmental Sciences Faculty and Staff Publications
The Minorities in Marine Science Undergraduate Program (MIMSUP) is an academic program at Western Washington University’s Shannon Point Marine Center (SPMC) that seeks to increase the representation of minority individuals in the marine sciences. For the past 13 years, groups of students have spent two 10-week quarters at SPMC studying marine science, doing independent research, and developing the skills needed for success as marine scientists/educators. Program elements include formal coursework in marine science, supervised independent research, training in up-to-date field and laboratory investigative techniques, experience developing scientific and personal job-related skills, and introduction to the career options open to marine …