| an evaluation of background levels and sources of polycyclic aromatic hydrocarbons in naturally spawned embryos of pacific herring (clupea pallasii) from puget sound, washington, usa. | pacific herring embryos spawned in nearshore habitats may be exposed to toxic contaminants as they develop, from exogenous sources in spawning habitats and from maternal transfer. determining baseline concentrations of these toxic contaminants is important for evaluating the health of this species, especially during this sensitive life stage. in this study we compared concentrations of polycyclic aromatic hydrocarbons, or pahs, in naturally spawned herring embryos from five spawning areas across ... | 2014 | 25181043 |
| using weight of evidence characterization and modeling to investigate the cause of the changes in pacific herring (clupea pallasi) population dynamics in puget sound and at cherry point, washington. | the decline of the cherry point pacific herring stock (cpphs) has been a puzzle of the upper puget sound. in this study, age-structured population modeling was used to examine the timing and scale of the dynamics of pacific herring stocks throughout the puget sound region. the intrinsic rate of increase and equilibrium age structure was calculated and forecast models were created for the stocks found in puget sound. we demonstrate that the causative agent for the decline of the cpphs and the col ... | 2010 | 19765250 |
| time trends of persistent organic pollutants in benthic and pelagic indicator fishes from puget sound, washington, usa. | we modeled temporal trends in polychlorinated biphenyls (pcbs), polybrominated diphenyl ethers (pbdes), and dichlorodiphenyltrichloroethane and its metabolites (ddts) in two indicator fish species representing benthic and pelagic habitats in puget sound, washington, usa. english sole (parophrys vetulus, benthic) index sites and larger-scale pacific herring (clupea pallasii, pelagic) foraging areas represented a wide range of possible contamination conditions, with sampling locations situated adj ... | 2017 | 28528416 |
| spatial extent, magnitude, and patterns of persistent organochlorine pollutants in pacific herring (clupea pallasi) populations in the puget sound (usa) and strait of georgia (canada). | we examined the geographic distribution and magnitude of three persistent organic pollutants (pops) in pacific herring, representing three populations from puget sound, washington state, usa and three from the strait of georgia (british columbia, canada and washington state). we measured pcbs, ddts and ddt isomers, and hexachlorobenzene in whole herring using high performance liquid chromatography, which provided a relatively inexpensive estimation of total pcbs, including the most commonly enco ... | 2008 | 18314160 |
| prevalence of viral erythrocytic necrosis in pacific herring and epizootics in skagit bay, puget sound, washington. | epizootics of viral erythrocytic necrosis (ven) occurred among juvenile pacific herring clupea pallasii in skagit bay, puget sound, washington, during 2005-2007 and were characterized by high prevalences and intensities of cytoplasmic inclusion bodies within circulating erythrocytes. the prevalence of ven peaked at 67% during the first epizootic in october 2005 and waned to 0% by august 2006. a second ven epizootic occurred throughout the summer of 2007; this was characterized by disease initiat ... | 2009 | 19485119 |
| methods for conducting bioassays using embryos and larvae of pacific herring, clupea pallasi. | the rapid decrease of several stocks of pacific herring, clupea pallasi, in puget sound, washington, has led to concerns about the effects of industrial and nonpoint source contamination on the embryo and larval stages of this and related forage fish species. to address these concerns, the state of washington and several industries have funded efforts to develop embryo and larval bioassay protocols that can be used by commercial laboratories for routine effluent testing. this article presents th ... | 2011 | 20922521 |
| archaeological data provide alternative hypotheses on pacific herring (clupea pallasii) distribution, abundance, and variability. | pacific herring (clupea pallasii), a foundation of coastal social-ecological systems, is in decline throughout much of its range. we assembled data on fish bones from 171 archaeological sites from alaska, british columbia, and washington to provide proxy measures of past herring distribution and abundance. the dataset represents 435,777 fish bones, dating throughout the holocene, but primarily to the last 2,500 y. herring is the single-most ubiquitous fish taxon (99% ubiquity) and among the two ... | 2014 | 24550468 |
| evaluating hypoxia-inducible factor-1α mrna expression in a pelagic fish, pacific herring clupea pallasii, as a biomarker for hypoxia exposure. | hypoxia [dissolved oxygen (do)<2 mg l(-1)] is a major environmental perturbation for many aquatic ecosystems, particularly highly productive estuaries. most research attention and understanding about the impacts of hypoxia on estuarine species has focused on the benthos, where hypoxia is most common. although the pelagic zone is also susceptible to the effects of hypoxia, the biological interactions and consequences are not as well understood in marine environments because documenting exposure o ... | 2015 | 26241022 |