Details:

Journal Title:
Progress in Oceanography
Personal Author:
Dumelle, Michael ; Lamb, Jesse F. ; Jacobson, Kym C. ; Hunsicker, Mary ; Morgan, Cheryl A. ; ... More +
Dumelle, Michael ; Lamb, Jesse F. ; Jacobson, Kym C. ; Hunsicker, Mary ; Morgan, Cheryl A. ; Burke, Brian J. ; Peterson, William T. Less -
NOAA Program & Office:
NOAA General Documents
Description:
Ecosystem indicators track information about states and trends in ocean systems and are a valuable tool for ecosystem assessment and management. To ensure that indicators are used appropriately in both science and management contexts, it is important to understand the extent to which they represent broader spatial patterns. In the Northern California Current (NCC) off the Oregon and Washington state coasts in the USA, copepod metrics derived from data collected at a well-sampled station on the Newport Hydrographic (NH) Line (‘NH05’, five nmi offshore from Newport, OR, USA) are commonly used as indicators of the region’s general ocean conditions. Using correlation analyses, we examined the utility of NH05 as a sentinel station (i.e. representative of a broader region) with respect to the abundance and biomass of warm-water and cold-water copepods in the NCC. Copepod correlations between NH05 and other locations in the NCC were higher for the warm-water copepods than the cold-water group, with correlations being slightly higher for abundance than biomass. Paracalanus parvus had the highest NH05 correlations among the warm-water copepod species, and Acartia longiremis had the highest NH05 correlations among the cold-water copepod species. We also broadened our analysis to evaluate other sampling sites as sentinel stations and found that some sites were equally or more representative of copepod dynamics in the NCC than NH05, though none of these sites tend to be sampled as often as NH05. This analysis emphasized that the warm-water copepods tend to be more similarly distributed in the NCC than the cold-water copepods, and thus their changes through time are better captured by most stations. In contrast, correlations among the cold-water copepods in the NCC vary by location and appear to be strongly related to depth, with the highest correlations at mid-shelf stations.
Keywords:
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Aquatic Science Geology
Source:
Progress in Oceanography, 193, 102550
DOI:
https://doi.org/10.1016/j.pocean.2021.102550
ISSN:
0079-6611
Format:
PDF
Publisher:
Elsevier BV
Document Type:
Journal Article
Rights Information:
Accepted Manuscript
Compliance:
Library
Main Document Checksum:
[+]
urn:sha256:164b87b606c9a825311fd6dbde4079941cfce86b6b322c504e7d1226b08b5a75
Download URL:
https://repository.library.noaa.gov/view/noaa/57479/noaa_57479_DS1.pdf
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