Index Catalog // ScholarsArchive@OSU

Relationship between oceanic mesozooplankton and energy of eddy fields

Creator:: Piontkovski, S. A., Williams, R., Peterson, William T., and Kosnirev, V. K.
Abstract:: The impact of mesoscale eddies on the spatial distribution of zooplankton biomass was analysed using data from the Arabian Sea and the Black Sea. The highest values of spatial variance of zooplankton biomass in the upper 100 to 150 m were found in regions with maximum available potential energy of...
Resource Type:: Article
Full Text:: die1 temporal compo- nent. KEY WORDS: Zooplankton biomass . Arabian Sea . Black S e a . Spatial

Onshore-offshore variations in copepod community structure off the Oregon coast during the summer upwelling season

Creator:: Morgan, Cheryl A., Peterson, William T., and Emmett, Robert L.
Abstract:: During the summer of 1994, 1996, and 1997, we conducted hydrographic and plankton surveys of the upper 70 m in the nearshore, the continental shelf, and off shelf oceanic waters off Oregon, USA. Copepod densities and biomass were estimated along 4 transects from each cruise. The on shelf copepod biomass...
Resource Type:: Article
Full Text:: community structure off the Oregon coast during the summer upwelling season Cheryl A. Morgan1,*, William T

Errors in juvenile copepod growth rate estimates are widespread: problems with the Moult Rate method

Creator:: Hirst, A. G., Peterson, William T., and Rothery, P.
Abstract:: The Moult Rate (MR) method has been used widely to derive stage-specific growth rates in juvenile copepods. It is the most common field-based method. Unfortunately, the equation underlying the method is wrong and, consequently, large errors in juvenile growth rate estimates are widespread. The equation derives growth from the mean...
Resource Type:: Article
Full Text:: rate estimates are widespread: problems with the Moult Rate method A. G. Hirst1,*, W. T. Peterson2

Linking predators to seasonality of upwelling: Using food web indicators and path analysis to infer trophic connections

Creator:: Thompson, Sarah Ann, Sydeman, William J., Santora, Jarrod A., Black, Bryan A., Suryan, Robert M., Calambokidis, John, Peterson, William T., and Bograd, Steven J.
Abstract:: Upwelling in eastern boundary current systems is a primary driver of ecosystem productivity. Typically, peak upwelling occurs during spring and summer, but winter upwelling may also be important to ecosystem functions. In this study, we investigated the hypothesis that winter and spring/summer upwelling, operating through indirect trophic interactions, are important...
Resource Type:: Article
Full Text:: ,⇑, William J. Sydeman a, Jarrod A. Santora a, Bryan A. Black b, Robert M. Suryan b, John Calambokidis c

SiedleckiExperimentswithSeasonalForecastsSupplement.pdf

Creator:: Siedlecki, Samantha A., Kaplan, Isaac C., Hermann, Albert J., Nguyen, Thanh Tam, Bond, Nicholas A., Newton, Jan A., Williams, Gregory D., Peterson, William T., Alin, Simone R., and Feely, Richard A.
Abstract:: Resource managers at the state, federal, and tribal levels make decisions on a weekly to quarterly basis, and fishers operate on a similar timeframe. To determine the potential of a support tool for these efforts, a seasonal forecast system is experimented with here. JISAO’s Seasonal Coastal Ocean Prediction of the...
Full Text:: , WILLIAM T. PETERSON (bill.peterson@noaa.gov)5, SIMONE R. ALIN (simone.r.alin@noaa.gov)6, RICHARD A

SiedleckiExperimentswithSeasonalForecasts.pdf

Creator:: Siedlecki, Samantha A., Kaplan, Isaac C., Hermann, Albert J., Nguyen, Thanh Tam, Bond, Nicholas A., Newton, Jan A., Williams, Gregory D., Peterson, William T., Alin, Simone R., and Feely, Richard A.
Abstract:: Resource managers at the state, federal, and tribal levels make decisions on a weekly to quarterly basis, and fishers operate on a similar timeframe. To determine the potential of a support tool for these efforts, a seasonal forecast system is experimented with here. JISAO’s Seasonal Coastal Ocean Prediction of the...
Full Text:: . Bond1,3, Jan A. Newton4, Gregory D. Williams5, William T. Peterson6, Simone R. Alin3 & Richard A. Feely3

Experiments with Seasonal Forecasts of ocean conditions for the Northern region of the California Current upwelling system

Creator:: Siedlecki, Samantha A., Kaplan, Isaac C., Hermann, Albert J., Nguyen, Thanh Tam, Bond, Nicholas A., Newton, Jan A., Williams, Gregory D., Peterson, William T., Alin, Simone R., and Feely, Richard A.
Abstract:: Resource managers at the state, federal, and tribal levels make decisions on a weekly to quarterly basis, and fishers operate on a similar timeframe. To determine the potential of a support tool for these efforts, a seasonal forecast system is experimented with here. JISAO’s Seasonal Coastal Ocean Prediction of the...
Resource Type:: Article

Environmental drivers and reproductive consequences of variation in the diet of a marine predator

Creator:: Gladics, Amanda J., Suryan, Robert M., Parrish, Julia K., Horton, Cheryl A., Daly, Elizabeth A., and Peterson, William T.
Abstract:: Ocean conditions can greatly impact lower trophic level prey assemblages in marine ecosystems, with effects of ocean state propagating to higher trophic levels. In many regions throughout their range, common murre (Uria aalge) exhibit narrow dietary breadth in feeding chicks and therefore are vulnerable to recruitment failures of dominant prey...
Resource Type:: Article
Full Text:: . Gladics a,b,⁎, Robert M. Suryan b, Julia K. Parrish c, Cheryl A. Horton b, Elizabeth A. Daly d, William T

MillerJessicaHMSCAssessingRelativeImportance_TablesS1-S3.pdf

Creator:: Miller, Jessica A., Teel, David J., Peterson, William T., and Baptista, Antonio M.
Abstract:: Research on regulatory mechanisms in biological populations often focuses on environmental covariates. An integrated approach that combines environmental indices with organismal-level information can provide additional insight on regulatory mechanisms. Survival of spring/summer Snake River Chinook salmon (Oncorhynchus tshawytscha) is consistently low whereas some adjacent populations with similar life histories experience...
Full Text:: significant difference between groups (p < 0.05). ND indicates sample size was too small to calculate a mean

MillerJessicaHMSCAssessingRelativeImportance.pdf

Creator:: Miller, Jessica A., Teel, David J., Peterson, William T., and Baptista, Antonio M.
Abstract:: Research on regulatory mechanisms in biological populations often focuses on environmental covariates. An integrated approach that combines environmental indices with organismal-level information can provide additional insight on regulatory mechanisms. Survival of spring/summer Snake River Chinook salmon (Oncorhynchus tshawytscha) is consistently low whereas some adjacent populations with similar life histories experience...
Full Text:: Survival of a Threatened Salmon Population Jessica A. Miller1*, David J. Teel2, William T. Peterson3

ScholarsArchive@OSU

Relationship between oceanic mesozooplankton and energy of eddy fields

Onshore-offshore variations in copepod community structure off the Oregon coast during the summer upwelling season

Errors in juvenile copepod growth rate estimates are widespread: problems with the Moult Rate method

Linking predators to seasonality of upwelling: Using food web indicators and path analysis to infer trophic connections

SiedleckiExperimentswithSeasonalForecastsSupplement.pdf

SiedleckiExperimentswithSeasonalForecasts.pdf

Experiments with Seasonal Forecasts of ocean conditions for the Northern region of the California Current upwelling system

Environmental drivers and reproductive consequences of variation in the diet of a marine predator

MillerJessicaHMSCAssessingRelativeImportance_TablesS1-S3.pdf

MillerJessicaHMSCAssessingRelativeImportance.pdf

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