Centennial-scale fluctuations and regional complexity characterize Pacific salmon population dynamics over the past five centuries.
Proc Natl Acad Sci U S A. 2013 Jan 15;
Authors: Rogers LA, Schindler DE, Lisi PJ, Holtgrieve GW, Leavitt PR, Bunting L, Finney BP, Selbie DT, Chen G, Gregory-Eaves I, Lisac MJ, Walsh PB
Observational data from the past century have highlighted the importance of interdecadal modes of variability in fish population dynamics, but how these patterns of variation fit into a broader temporal and spatial context remains largely unknown.
Frequency and intensity of productivity regime shifts in marine fish stocks.
Proc Natl Acad Sci U S A. 2013 Jan 15;
Authors: Vert-Pre KA, Amoroso RO, Jensen OP, Hilborn R
Fish stocks fluctuate both in abundance and productivity (net population increase), and there are many examples demonstrating that productivity increased or decreased due to changes in abundance caused by fishing and, alternatively, where productivity shifted between low and high regimes, entirely unrelated to abundance.
Pesticides in urban streams and early life stages of pacific coho salmon.
Environ Toxicol Chem. 2013 Jan 7;
Authors: King KA, Grue CE, Grassley JM, Fisk RJ
Pesticides are frequently detected in urban streams and are believed to be primarily the result of homeowner use. Although concentrations in most cases are low (<1 µg/L), there is concern that pesticide inputs threaten efforts to restore and enhance salmon habitat.
Genomic resource development for shellfish of conservation concern.
Mol Ecol Resour. 2012 Dec 27;
Authors: Timmins-Schiffman EB, Friedman CS, Metzger DC, White SJ, Roberts SB
Effective conservation of threatened species depends on the ability to assess organism physiology and population demography. To develop genomic resources to better understand the dynamics of two ecologically vulnerable species in the Pacific Northwest of the United States, larval transcriptomes were sequenced for the pinto abalone, Haliotis kamtschatkana kamtschatkana, and the Olympia oyster, Ostrea lurida.
Characterization of genes involved in ceramide metabolism in the Pacific oyster, Crassostrea gigas
BMC Research Notes 2012, 5:502, DOI 10.1186/1756-0500-5-502
Authors: Timmins-Schiffman E, Roberts SB
Ceramide metabolism is an important part of the vertebrate response to a variety of environmental stressors. Accumulation of ceramide, a lipid, can lead to stress-induced apoptosis. We investigated the conservation of this pathway in invertebrates using the Pacific oyster as a model.
Developing a broader scientific foundation for river restoration: Columbia River food webs.
Proc Natl Acad Sci U S A. 2012 Nov 28;
Authors: Naiman RJ, Alldredge JR, Beauchamp DA, Bisson PA, Congleton J, Henny CJ, Huntly N, Lamberson R, Levings C, Merrill EN, Pearcy WG, Rieman BE, Ruggerone GT, Scarnecchia D, Smouse PE, Wood CC
Well-functioning food webs are fundamental for sustaining rivers as ecosystems and maintaining associated aquatic and terrestrial communities.
Rank and Order: Evaluating the Performance of SNPs for Individual Assignment in a Non-Model Organism.
PLoS One. 2012;7(11):e49018
Authors: Storer CG, Pascal CE, Roberts SB, Templin WD, Seeb LW, Seeb JE
Single nucleotide polymorphisms (SNPs) are valuable tools for ecological and evolutionary studies. In non-model species, the use of SNPs has been limited by the number of markers available. However, new technologies and decreasing technology costs have facilitated the discovery of a constantly increasing number of SNPs.
Coexistence and origin of trophic ecotypes of pygmy whitefish, Prosopium coulterii, in a south-western Alaskan lake
Journal of Evolutionary Biology, doi: 10.1111/jeb.12011
Authors: C. P. Gowell*†, T. P. Quinn† & E. B. Taylor‡
*Department of Biology, University of Puget Sound, Tacoma, WA, USA
†School of Aquatic and Fishery Sciences, University of Washington, Seattle, WA, USA
‡Department of Zoology, Biodiversity Research Centre and Beaty Biodiversity Museum, University of British Columbia, Vancouver, BC, Canada
Ecologically, morphologically and genetically distinct populations within single taxa often coexist in postglacial lakes and have provided important model systems with which to investigate ecological and evolutionary processes such as niche partitioning and ecological speciation.
Can interbreeding of wild and artificially propagated animals be prevented by using broodstock selected for a divergent life history?
Evol Appl. 2012 Nov;5(7):705-19
Authors: Seamons TR, Hauser L, Naish KA, Quinn TP
TWO STRATEGIES HAVE BEEN PROPOSED TO AVOID NEGATIVE GENETIC EFFECTS OF ARTIFICIALLY PROPAGATED INDIVIDUALS ON WILD POPULATIONS: (i) integration of wild and captive populations to minimize domestication selection and (ii) segregation of released individuals from the wild population to minimize interbreeding.
Impacts of ocean acidification on marine seafood.
Trends Ecol Evol. 2012 Nov 1;
Authors: Branch TA, Dejoseph BM, Ray LJ, Wagner CA
Ocean acidification is a series of chemical reactions due to increased CO(2) emissions. The resulting lower pH impairs the senses of reef fishes and reduces their survival, and might similarly impact commercially targeted fishes that produce most of the seafood eaten by humans.