TY - JOUR
T1 - Influence of Basin- and Local-Scale Environmental Conditions on Nearshore Production in the Northeast Pacific Ocean
AU - Von Biela, Vanessa R.
AU - Zimmerman, Christian E.
AU - Kruse, Gordon H.
AU - Mueter, Franz J.
AU - Black, Bryan A.
AU - Douglas, David C.
AU - Bodkin, James L.
N1 - Funding Information:
This work was part of the Pacific Nearshore Project supported by the USGSU.S. Geological Survey Ecosystems Mission Area and the Department of the Interior on the Landscape Initiative to investigate biotic responses to environmental variation in nearshore habitats of the northeast Pacific Ocean. We thank the USGS Pacific Nearshore Team for project support.We are grateful for the fish collections provided by H. Coletti (National Park Service), M. Murray (Monterey Bay Aquarium), S. Larson (Seattle Aquarium), S. Hoobler (California Department of Fish and Wildlife), L. Nichols (Canada Department of Fisheries and Oceans), B. Ballachey, K. Bodkin, L. Bowen, T. Dean, G. Esslinger, J. Estes, A. Fukuyama, B. Hatfield, M. Kenner, K. Kloecker, D. Monson, L. Nichol, R. Markel, A. Miles, S. Saupe, G. Snedgen, M. Staedler, T. Tinker, J. Tomoleoni, C. Turner, K. Vicknair, B. Weitzman, and S. Wood. We thank J. Saarinen for supplying watershed polygons, D. Hill and J. Beamer for providing data on freshwater discharge in the Gulf of Alaska, and S. Okkonen for helpful comments on an earlier version of the manuscript. E. Calvert Siddon and two anonymous reviewers provided comments that strengthened the manuscript. Any use of trade names or products is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Publisher Copyright:
© American Fisheries Society. All rights reserved.
PY - 2016/5/5
Y1 - 2016/5/5
N2 - Nearshore marine habitats are productive and vulnerable owing to their connections to pelagic and terrestrial landscapes. To understand how ocean basin- and local-scale conditions may influence nearshore species, we developed an annual index of nearshore production (spanning the period 1972–2010) from growth increments recorded in otoliths of representative pelagic-feeding (Black Rockfish Sebastes melanops) and benthic-feeding (Kelp Greenling Hexagrammos decagrammus) nearshore-resident fishes at nine sites in the California Current and Alaska Coastal Current systems. We explored the influence of basin- and local-scale conditions across all seasons at lags of up to 2 years to represent changes in prey quantity (1- or 2-year time lags) and quality (within-year relationships). Relationships linking fish growth to basin-scale (Pacific Decadal Oscillation, North Pacific Gyre Oscillation, and multivariate El Niño—Southern Oscillation index) and local-scale (sea surface temperature, sea surface height anomalies, upwelling index, photosynthetically active radiation, and freshwater discharge) environmental conditions varied by species and current system. Growth of Black Rockfish increased with cool basin-scale conditions in the California Current and warm local-scale conditions in the Alaska Coastal Current, consistent with existing hypotheses linking climate to pelagic production on continental shelves in the respective regions. Relationships for Kelp Greenlings in the California Current were complex, with faster growth related to within-year warm conditions and lagged-year cool conditions. These opposing, lag-dependent relationships may reflect differences in conditions that promote quantity versus quality of benthic invertebrate prey in the California Current. Thus, we hypothesize that benthic production is maximized by alternating cool and warm years, as benthic invertebrate recruitment is food limited during warm years while growth is temperature limited by cool years in the California Current. On the other hand, Kelp Greenlings grew faster during and subsequent to warm conditions at basin and local scales in the Alaska Coastal Current.
AB - Nearshore marine habitats are productive and vulnerable owing to their connections to pelagic and terrestrial landscapes. To understand how ocean basin- and local-scale conditions may influence nearshore species, we developed an annual index of nearshore production (spanning the period 1972–2010) from growth increments recorded in otoliths of representative pelagic-feeding (Black Rockfish Sebastes melanops) and benthic-feeding (Kelp Greenling Hexagrammos decagrammus) nearshore-resident fishes at nine sites in the California Current and Alaska Coastal Current systems. We explored the influence of basin- and local-scale conditions across all seasons at lags of up to 2 years to represent changes in prey quantity (1- or 2-year time lags) and quality (within-year relationships). Relationships linking fish growth to basin-scale (Pacific Decadal Oscillation, North Pacific Gyre Oscillation, and multivariate El Niño—Southern Oscillation index) and local-scale (sea surface temperature, sea surface height anomalies, upwelling index, photosynthetically active radiation, and freshwater discharge) environmental conditions varied by species and current system. Growth of Black Rockfish increased with cool basin-scale conditions in the California Current and warm local-scale conditions in the Alaska Coastal Current, consistent with existing hypotheses linking climate to pelagic production on continental shelves in the respective regions. Relationships for Kelp Greenlings in the California Current were complex, with faster growth related to within-year warm conditions and lagged-year cool conditions. These opposing, lag-dependent relationships may reflect differences in conditions that promote quantity versus quality of benthic invertebrate prey in the California Current. Thus, we hypothesize that benthic production is maximized by alternating cool and warm years, as benthic invertebrate recruitment is food limited during warm years while growth is temperature limited by cool years in the California Current. On the other hand, Kelp Greenlings grew faster during and subsequent to warm conditions at basin and local scales in the Alaska Coastal Current.
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U2 - 10.1080/19425120.2016.1194919
DO - 10.1080/19425120.2016.1194919
M3 - Article
AN - SCOPUS:84993946990
VL - 8
SP - 502
EP - 521
JO - Marine and Coastal Fisheries
JF - Marine and Coastal Fisheries
SN - 1942-5120
ER -