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Distribution patterns of five pleuronectid species on the continental slope off the Pacific coast of northern Honshu, Japan

Authors
  • Hattori, Tsutomu1
  • Okuda, Takehiro1
  • Narimatsu, Yoji1
  • Ito, Masaki1
  • 1 Fisheries Research Agency, Hachinohe Station, Tohoku National Fisheries Research Institute, Hachinohe, Aomori, 031-0841, Japan , Hachinohe (Japan)
Type
Published Article
Journal
Fisheries Science
Publisher
Springer Japan
Publication Date
Aug 03, 2010
Volume
76
Issue
5
Pages
747–754
Identifiers
DOI: 10.1007/s12562-010-0269-8
Source
Springer Nature
Keywords
License
Yellow

Abstract

Information on the distributions of demersal and benthic fishes is fundamental for stock assessment and management. Spatiotemporal changes in the distribution patterns of five pleuronectid species (flathead flounder Hippoglossoides dubius, Kamchatka flounder Atheresthes evermanni, roughscale sole Clidoderma asperrimum, slime flounder Microstomus achne, and Korean flounder Glyptocephalus stelleri) off the Pacific coast of northern Honshu, Japan, at depths of 150–900 m, were examined using a generalized linear mixed model (GLMM). Densities of flathead and Korean flounder were highest in the southernmost area, where the fish were small. The body lengths of both of these species increased from 2003 to 2008, suggesting that an abundant year class was recruited in 2003. The density of Kamchatka flounder was highest in the northern area. In roughscale sole and slime flounder, there were no distinctive annual and latitudinal trends in the density distributions. The density distribution of Korean flounder was bimodal; the peaks were at depths of 210 and 410 m. The body length increased as the depth increased from 150 to 410 m, and then decreased from 410 to 550 m. Moreover, “bigger–deeper” trends were observed in flathead, Kamchatka and slime flounder.

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