JSOES

Juvenile Salmon and Ocean Ecosystem Survey

 

The Juvenile Salmon and Ocean Ecosystem Survey (JSOES) monitors the distribution and abundance of juvenile salmon. This survey examines oceanographic conditions in the Columbia River plume and nearshore marine areas off the coast of Oregon and Washington within the Northern California Current Ecosystem. These surveys, which began in 1998, aim to understand how early ocean conditions influence salmon populations. The primary research hypothesis is that “variation in salmon growth and survival during the first few months of ocean residency impacts cohort strength of the marine life stage of Pacific salmon.”  The main objective of the project is “to determine the physical, biological, and ecological mechanisms that control survival of salmon during their early marine life.”  (e.g. Burke et al., 2013).

In addition to studying salmonids, this project collects data on associated marine species including zooplankton, jellyfish, squid, birds, and various fishes.  Over the years, these surveys have documented large fluctuations in marine species populations during recent marine heat waves (Brodeur et al., 2005, Daly et al., 2019, Morgan et al., 2019, Chasco et al., 2022, Daly et al., 2024).

Primary research products include the Salmon Ocean Ecosystem Indicator Page, contributions to the CCIEA data portal, and contributions  to the primary literature and numerous technical reports.

People

NOAA Partner: Northwest Fisheries Science Center

NOAA PI: Brian Burke

CIMERS Lab Members:

Other Key Collaborators: Jessica Miller, Rebecca Forney, Kathleen O’Malley, Cristín Fitzpatrick (OSU), Newport Hydrographic Line
 

References

  • Brodeur, R.D., Fisher, J.P., Emmett, R.L., Morgan, C.A. and Casillas, E. (2005) Species composition and community structure of pelagic nekton off Oregon and Washington under variable oceanographic conditions. Mar. Ecol. Prog. Ser., 298, 41-57.  doi:10.3354/meps298041.
  • Burke, B.J., Peterson, W.T., Beckman, B.R., Morgan, C.A., Daly, E.A. and Litz, M. (2013) Multivariate models of adult Pacific salmon returns. PloS One, 8(1): e54134.  doi:10.1371/journal.pone.0054134.
  • Chasco, B.E., Hunsicker, M.E., Jacobson, K.C., Welch, O.T., Morgan, C.A., Muhling, B.A. and Harding, J.A. (2022) Evidence of temperature driven shifts in market squid (Doryteuthis opalescens) densities and distribution in the California Current Ecosystem. Mar. Coast. Fish.  doi:10.1002/mcf2.10190.
  • Daly, E.A., Auth, T.D., Brodeur, R.D. and Jacobson, K.C. (2019) Changes in juvenile salmon prey fields associated with a recent marine heat wave in the northern California Current. N. Pac. Anadrom. Fish Comm. Tech. Rep. 71-74pp., doi:10.23849/npafctr15/71.74.
  • Daly, E.A., Chasco, B.E., Morgan, C.A., Burke, B.J., Osborne, K.E. and Draper, D.L. (2024) Implications of increased spatial and trophic overlap between juvenile Pacific salmon and Sablefish in the northern California Current. Mar. Coast. Fish., 16, e10325.  doi:10.1002/mcf2.10325.
  • Morgan, C.A., Beckman, B.R., Weitkamp, L.A. and Fresh, K.L. (2019) Recent ecosystem disturbance in the Northern California Current. Fisheries, 44, 465-474.  doi:10.1002/fsh.10273.
     

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