Contrasting the variability in spatial distribution of two juvenile flatfishes in relation to thermal stanzas in the eastern Bering Sea

Yeung, Cynthia; Cooper, Daniel W

doi:10.1093/icesjms/fsz180

i

Contrasting the variability in spatial distribution of two juvenile flatfishes in relation to thermal stanzas in the eastern Bering Sea

2020
By Yeung, Cynthia ; Cooper, Daniel W
Source Ices Journal of Marine Science, 77(3), 953-963

Details

Journal Title:

Ices Journal of Marine Science
Personal Author:

Yeung, Cynthia ; Cooper, Daniel W
NOAA Program & Office:

NMFS (National Marine Fisheries Service) ; AFSC (Alaska Fisheries Science Center)
Description:

Groundfish species in the Bering Sea are undergoing pronounced changes in spatial distribution and abundance due to warming ocean temperatures. The main drivers of interannual variability in this ecosystem are the alternating warm and cold thermal stanzas. Yellowfin sole (Limanda aspera; YFS) and northern rock sole (Lepidopsetta polyxystra; NRS) are commercially-valuable flatfishes in the Bering Sea and are among the most dominant groundfish species there in numbers and biomass. We examined the variability in the spatial distribution and abundance of juvenile NRS and YFS in relation to the ice and temperature conditions associated with warm-cold thermal shifts from 1982 to 2017. The goal was to assess the implications of the fluctuating thermal environment for Bering Sea flatfish production. We found ice cover and bottom temperature indices in the preceding 1 to 3 years to be the best predictors of NRS juvenile distribution. In contrast, these indices were not significantly correlated with YFS juvenile distribution, which could be an artifact of their relatively low availability to sampling. A warm stanza, as the Bering Sea is currently in, is expected to favor high numbers of NRS juveniles and the northward expansion of their distribution.
Keywords:
Source:

Ices Journal of Marine Science, 77(3), 953-963
DOI:

https://doi.org/10.1093/icesjms/fsz180
Document Type:

Journal Article
Rights Information:

Public Domain
Compliance:

Submitted
Download URL:

https://repository.library.noaa.gov/view/noaa/30638/noaa_30638_DS1.pdf
File Type:

[PDF - 698.37 KB]
Collection(s):

National Marine Fisheries Service (NMFS)
Main Document Checksum:

urn:sha256:e22f389f1e25f6781e05a14cf16f8151da534b24573cffb5bf64459e7712e89b

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