Index Catalog // ScholarsArchive@OSU

The impact of El Niño events on the pelagic food chain in the northern California Current

Creator:: Fisher, Jennifer L., Peterson, William T., and Rykaczewski, Ryan R.
Abstract:: The zooplankton of the northern California Current are typically characterized by an abundance of lipid-rich copepods that support rapid growth and survival of ecologically, commercially, and recreationally valued fish, birds, and mammals. Disruption of this food chain and reduced ecosystem productivity are often associated with climatic variability such as El...
Resource Type:: Article
Full Text:: the northern California Current The impact of El Niño events on the pelagic food chain in the

ENSO impacts on pelagic ecosystems in the Eastern Pacific, with emphasis on fishery resources

Creator:: Alvial, Adolfo L.
Abstract:: Many new research and monitoring projects, developed or initiated during ENSO 1982-83, constituted detailed descriptions of changes in specific taxa or specific processes. However, only a few projects were opportunely started or continued as regional efforts in the eastern Pacific. For those reasons, the information obtained is difficult to compare....
Resource Type:: Capstone Project
Full Text:: synthesis of the principal physical events observed during the El NiNo 1982-83 is shown in Fig.1. 2.3

Anomalous ichthyoplankton distributions and concentrations in the northern California Current during the 2010 El Niño and La Niña events

Creator:: Auth, Toby D., Brodeur, Richard D., and Peterson, Jay O.
Abstract:: In late spring of 2010, the northern California Current (NCC) experienced a transition from El Niño to La Niña conditions resulting in anomalous distributions and concentrations within the ichthyoplankton community. We analyzed larval fish data collected during the four months before and after this transition and compared them to data...
Resource Type:: Article
Full Text:: concentrations in the northern California Current during the 2010 El Niño and La Niña events Anomalous

State of the California Current 2013-14: El Niño Looming

Creator:: Leising, Andrew W., Schroeder, Isaac D., Bograd, Steven J., Bjorkstedt, Eric P., Field, John, Sakuma, Keith, Abell, Jeffrey, Robertson, Roxanne, Tyburczy, Joe, Peterson, William T., Brodeur, Ric, Barcelo, Caren, Auth, Toby D., Daly, Elizabeth A., Campbell, Gregory S., Hildebrand, John A., Suryan, Robert M., Gladics, Amanda J., Horton, Cheryl A., Kahru, M, Manzano-Sarabia, M., McClatchie, S., Weber, Edward D., Watson, William, Santora, Jarrod A., Sydeman, William J., Melin, Sharon R., Delong, Robert L., Largier, John, Kim, Sung Yong, Chavez, Francisco P., Golightly, Richard T., Schneider, Stephanie R., Warzybok, Pete, Bradley, Russel, Jahncke, Jaime, Fisher, Jennifer, and Peterson, Jay
Abstract:: In 2013, the California current was dominated by strong coastal upwelling and high productivity. Indices of total cumulative upwelling for particular coastal locations reached some of the highest values on record. Chlorophyll a levels were high throughout spring and summer. Catches of upwelling-related fish species were also high. After a...
Resource Type:: Article
Full Text:: Current 2013-14: El Niño Looming State of the California Current 2013-14: El Niño Looming Leising, A. W

High resolution paleoclimatology from the varved sediments of the Gulf of California

Creator:: Baumgartner, Timothy Robert
Resource Type:: Dissertation
Full Text:: sedimento- logical consequences of the 1982-1983 El Niño in the Gulf of California. The format followed in

The state of California current, 2001 – 2002 : will the Californa current system keep its cool, or is El Niño coming?

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...
Resource Type:: Article
Full Text:: have documented the evolution of one of the strongest El Niño events on record in 1997–98 and the

Delayed upwelling alters nearshore coastal ocean ecosystems in the northern California current

Creator:: Barth, John A., Menge, Bruce A., Lubchenco, Jane, Chan, Francis, Bane, John M., Kirincich, Anthony R., McManus, Margaret A., Nielsen, Karina J., Pierce, Stephen D., and Washburn, Libe
Abstract:: Wind-driven coastal ocean upwelling supplies nutrients to the euphotic zone near the coast. Nutrients fuel the growth of phytoplankton, the base of a very productive coastal marine ecosystem [Pauly D, Christensen V (1995) Nature 374:255–257]. Because nutrient supply and phytoplankton biomass in shelf waters are highly sensitive to variation in...
Resource Type:: Article
Full Text:: in the northern California current John A. Barth*†, Bruce A. Menge‡, Jane Lubchenco†‡, Francis Chan

Benthic-Pelagic Links and Rocky Intertidal Communities: Bottom-Up Effects on Top-Down Control?

Creator:: Menge, Bruce A., Daley, Bryon A., Wheeler, Patricia A., Dahlhoff, Elizabeth, Sanford, Eric, and Strub, P. Ted
Abstract:: Insight into the dependence of benthic communities on biological and physical processes in nearshore pelagic environments, long considered a ``black box,'' has eluded ecologists. In rocky intertidal communities at Oregon coastal sites 80 km apart, differences in abundance of sessile invertebrates, herbivores, carnivores, and macrophytes in the low zone were...
Resource Type:: Article
Full Text:: , current-dependent process (14, 16). The dependence of among-site community variation on nearshore pelagic

Trophic dynamics of marine nekton and zooplankton in the Northern California Current ecosystem

Creator:: Miller, Todd William
Abstract:: The Northern California Current (NCC) ecosystem exhibits extreme seasonal, interannual and interdecadal shifts in the abiotic environment and shifts in primary and higher production. This variability is also apparent in the spatial structure of the ecosystem with nearshore-shelf waters (<150 m isobath) being highly productive and having a different community...
Resource Type:: Dissertation
Full Text:: TROPHIC DYNAMICS OF MARINE NEKTON AND ZOOPLANKTON WITHIN THE NORTHERN CALIFORNIA CURRENT PELAGIC

El Nino related variations in nutrient and chlorophyll distributions off Oregon

Creator:: Corwith, Holly L.
Abstract:: The Oregon continental shelf waters are typically characterized by four to five major upwelling events that occur between May and October. The upwelled water is rich in nutrients, which fuels an increase in phytoplankton biomass. The onset of El Nino, however, can disrupt the normal physical processes along the Oregon...
Resource Type:: Masters Thesis
Full Text:: magnitude of effects of the El Nino conditions on seasonal variations in nutrient and chlorophyll

ScholarsArchive@OSU

The impact of El Niño events on the pelagic food chain in the northern California Current

ENSO impacts on pelagic ecosystems in the Eastern Pacific, with emphasis on fishery resources

Anomalous ichthyoplankton distributions and concentrations in the northern California Current during the 2010 El Niño and La Niña events

State of the California Current 2013-14: El Niño Looming

High resolution paleoclimatology from the varved sediments of the Gulf of California

The state of California current, 2001 – 2002 : will the Californa current system keep its cool, or is El Niño coming?

Delayed upwelling alters nearshore coastal ocean ecosystems in the northern California current

Benthic-Pelagic Links and Rocky Intertidal Communities: Bottom-Up Effects on Top-Down Control?

Trophic dynamics of marine nekton and zooplankton in the Northern California Current ecosystem

El Nino related variations in nutrient and chlorophyll distributions off Oregon

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