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- Creator:
- Suryan, Robert M., Santora, Jarrod A., and Sydeman, William J.
- Abstract:
- Satellite imagery of chlorophyll a concentration (chl a) provides the only holistic perspective of productivity in marine ecosystems worldwide, yet its utility for understanding and predicting the distribution of upper trophic-level predators remains equivocal. We tested the hypothesis that remotely sensed chl a measurements spanning a decade can predict marine...
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- Article
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- . Suryan1,*, Jarrod A. Santora2, William J. Sydeman2,3 1Oregon State University, Hatfield Marine Science
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- 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...
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- Article
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- ,⇑, William J. Sydeman a, Jarrod A. Santora a, Bryan A. Black b, Robert M. Suryan b, John Calambokidis c
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- Creator:
- Doney, Scott C., Ruckelshaus, Mary, Duffy, J. Emmett, Barry, James P., Chan, Francis, English, Chad A., Galindo, Heather M., Grebmeier, Jacqueline M., Hollowed, Anne B., Knowlton, Nancy, Polovina, Jeffrey, Rabalais, Nancy N., Sydeman, William J., and Talley, Lynne D.
- Abstract:
- In marine ecosystems, rising atmospheric CO2 and climate change are associated with concurrent shifts in temperature, circulation, stratification, nutrient input, oxygen content, and ocean acidification, with potentially wideranging biological effects. Population-level shifts are occurring because of physiological intolerance to new environments, altered dispersal patterns, and changes in species interactions. Together...
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- Article
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- . Grebmeier, Anne B. Hollowed, Nancy Knowlton, Jeffrey Polovina, Nancy N. Rabalais, William J. Sydeman, and
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- Creator:
- Durazo, Reginaldo, Collins, Curtis A., Hyrenbach, David K., Schwing, Franklin B., Baumgartner, Timothy R., García, Joaqúin, Loya, Daniel, Smith, Robert L. (Robert Lloyd), 1935-, Wheeler, Patricia A., Bograd, Steven J., Huyer, Adriana, 1945-, Lynn, Ronald J., and Sydeman, William J.
- Abstract:
- This report is the eighth in a series that describe recent oceanographic observations within the California Current system, from Oregon to Baja California. The emphasis here is placed on the observations conducted concurrently by the CalCOFI (California Cooperative Oceanic Fisheries Investigations), IMECOCAL (Investigaciones Mexicanas de la COrriente de CALifornia), and...
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- Article
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- , California 92038 WILLIAM J. SYLIEMAN Point lieyes Bird Obtervatory Marine Science l’rogram 4900
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- Creator:
- Schwing, Franklin B., Gaxiola-Castro, Gilberto, Goméz-Valdéz, José, Kosro, P. Michael, 1951-, Mantyla, Arnold W., Smith, Robert L. (Robert Lloyd), 1935-, Bograd, Steven J., García, Joaqúin, Huyer, Adriana, 1945-, Lavaniegos, Bertha E., Ohman, Mark D., Sydeman, William J., Wheeler, Patricia A., Collins, Curtis A., Goericke, Ralf, Hyrenbach, K. David, Lynn, Ronald J., Peterson, William T., and Venrick, Elizabeth
- Abstract:
- This report summarizes physical and biological conditions in the California Current System (CCS), from Oregon to Baja California, in 2001 and 2002. The principal sources of the observations described here are the CalCOFI (California Cooperative Oceanic Fisheries Investigations), IMECOCAL (Investigaciones Mexicanas de la Corriente de California), and U.S. GLOBECLTOP (Global...
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- Article
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- WILLIAM T. PETERSON Integrative Oceanography Division Integrative Oceanography Division National Marine
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- Creator:
- Goericke, Ralf, Venrick, Elizabeth, Mantyla, Arnold W., Hooff, Rian, Collins, Curtis A., Gaxiola-Castro, Gilberto, Bograd, Steven J., Schwing, Franklin B., Peterson, William T., Marinovic, Baldo, Durazo, Reginaldo, Huyer, Adriana, 1945-, Smith, Robert L. (Robert Lloyd), 1935-, Wheeler, Patricia A., Chavez, Francisco, Lo, Nancy, Hyrenbach, K. David, and Sydeman, William J.
- Abstract:
- This report summarizes the recent state of the California Current System (CCS), primarily during the period of April 2004 to January 2005. The report is based on observations made between Oregon and Baja California by various ocean observing programs. The CCS was not forced by any coherent basin-wide processes during...
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- Article
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- , Departamento de Oceanografía Biológica Facultad de Ciencias Marinas WILLIAM J. SYDEMAN Centro de Investigación
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- Creator:
- Goericke, Ralf, Venrick, Elizabeth, Mantyla, Arnold W., Bograd, Steven J., Schwing, Franklin B., Huyer, Adriana, 1945-, Smith, Robert L. (Robert Lloyd), 1935-, Wheeler, Patricia A., Hooff, Rian, Peterson, William T., Gaxiola-Castro, Gilberto, Gomez-Valdes, Jose, Lavaniegos, Bertha E., Hyrenbach, K. David, and Sydeman, William J.
- Abstract:
- This report describes the state of the California Current System (CCS)—meteorological, physical, chemical, and biological—from January 2003 to the spring of 2004. The area covered in this report ranges from Oregon coastal waters to southern Baja California. Over the past year, most physical, chemical, and biological parameters were close to...
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- Article
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- , California 92093-0218 K. DAVID HYRENBACH, WILLIAM J. SYDEMAN Marine Ecology Division Point Reyes Bird
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- Creator:
- Leising, Andrew W., Schroeder, Isaac D., Bograd, Steven J., Abell, Jeffrey, Durazo, Reginaldo, Gaxiola-Castro, Gilberto, Bjorkstedt, Eric P., Field, John, Sakuma, Keith, Robertson, Roxanne R., Goericke, Ralf, Peterson, William T., Brodeur, Ric, Barceló, Caren, Auth, Toby D., Daly, Elizabeth A., Suryan, Robert M., Gladics, Amanda J., Porquez, Jessica M., McClatchie, Sam, Weber, Edward D., Watson, William, Santora, Jarrod A., Sydeman, William J., Melin, Sharon R., Chavez, Francisco P., Golightly, Richard T., Schneider, Stephanie R., Fisher, Jennifer, Morgan, Cheryl, Bradley, Russell, and Warybok, Peter
- Abstract:
- In 2014, the California Current (~28˚–48˚N) saw average, or below average, coastal upwelling and relatively low productivity in most locations, except from 38˚–43˚N during June and July. Chlorophyll-a levels were low throughout spring and summer at most locations, except in a small region around 39˚N. Catches of juvenile rockfish (an...
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- , wiLLiAM J. sydeMAn Farallon institute for Advanced ecosystem research 101 h street Petaluma, cA
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- Creator:
- Bjorkstedt, Eric P., Goericke, Ralf, McClatchie, Sam, Weber, Ed, Watson, William, Lo, Nancy, Peterson, Bill, Emmett, Bob, Brodeur, Ric, Peterson, Jay, Litz, Marisa, Gomez-Valdez, Jose, Gaxiola-Castro, Gilberto, Lavaniegos, Bertha, Chavez, Francisco, Collins, Curtis A., Field, John, Sakuma, Keith, Warzybok, Pete, Bradley, Russell, Jahncke, Jaime, Bograd, Steven, Schwing, Franklin, Campbell, Gregory S., Hildebrand, John, Sydeman, William, Thompson, Sarah Ann, Largier, John L., Halle, Chris, Kim, Sung Yong, and Abell, Jeffrey
- Abstract:
- The state of the California Current system (CCS) since spring 2010 has evolved in response to the development of cooler La Nina following the dissipation of the relatively weak and short-lived El Nino event of 2009-2010. The 2009-2010 El Nino appears to have dissipated quite rapidly in early spring 2010,...
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- 9500 Gilman drive la jolla, cA 92093-0205 WilliAm j. sydEmAN, sArAH ANN tHomPsoN Farallon
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- Creator:
- Sydeman, William J., Thompson, Sarah Ann, Anker-Nilssen, Tycho, Arimitsu, Mayumi, Bennison, Ashley, Bertrand, Sophie, Boersch-Supan, Philipp, Boyd, Charlotte, Bransome, Nicole C., Crawford, Robert J. M., Daunt, Francis, Furness, Robert W., Gianuca, Dimas, Gladics, Amanda J., Koehn, Laura, Lang, Jennifer W., Logerwell, Elizabeth, Morris, Taryn L., Phillips, Elizabeth M., Provencher, Jennifer, Punt, André E., Saraux, Claire, Shannon, Lynne, Sherley, Richard B., Simeone, Alejandro, Wanless, Ross M., Wanless, Sarah, and Zador, Stephani
- Abstract:
- Worldwide, in recent years capture fisheries targeting lower-trophic level forage fish and euphausiid crustaceans have been substantial (∼20 million metric tons [MT] annually). Landings of forage species are projected to increase in the future, and this harvest may affect marine ecosystems and predator-prey interactions by removal or redistribution of biomass...
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