2006
DOI: 10.2331/suisan.72.430
|View full text |Cite
|
Sign up to set email alerts
|

Spatial distribution patterns and nutritional status of kichiji rockfish Sebastolobus macrochir in summer on the continental slope off the Pacific coast of Hokkaido, Japan

Abstract: The spatial distribution patterns and nutritional status of the kichiji rockˆsh Sebastolobus macrochir were investigated oŠ the Paciˆc coast of Hokkaido during the summer of 2001 2004. Fish100 mm SL were chie‰y distributed at depths of 550 750 m oŠ the southeastern area of Cape Erimo where their principal prey, gammarid amphipods, were abundant. The 101 150 mm SLˆsh were concentrated in shallow areas where their principal prey, the decapod Neocrangon communis, was abundant. Conversely,ˆsh151 mm SL were ob… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
2

Citation Types

0
7
0

Year Published

2007
2007
2020
2020

Publication Types

Select...
5

Relationship

0
5

Authors

Journals

citations
Cited by 5 publications
(7 citation statements)
references
References 5 publications
0
7
0
Order By: Relevance
“…The nutritive value of crustaceans is two-to fourfold higher than that of ophiuroids. 15 These results suggest that the main prey items of bighand thornyhead changed from a high nutrition diet in the 1950s to a low nutrition diet in the 2000s.…”
Section: Discussionmentioning
confidence: 92%
See 1 more Smart Citation
“…The nutritive value of crustaceans is two-to fourfold higher than that of ophiuroids. 15 These results suggest that the main prey items of bighand thornyhead changed from a high nutrition diet in the 1950s to a low nutrition diet in the 2000s.…”
Section: Discussionmentioning
confidence: 92%
“…In the spring/summer of the 2000s, the frequency of crustaceans (especially benthic shrimps) decreased, while ophiuroids increased in fish stomachs. The nutritive value of crustaceans is two‐ to fourfold higher than that of ophiuroids 15 . These results suggest that the main prey items of bighand thornyhead changed from a high nutrition diet in the 1950s to a low nutrition diet in the 2000s.…”
Section: Discussionmentioning
confidence: 96%
“…Shortspine S. alascanus and longspine thornyhead S. altivelis showed significant positive size–depth correlations (bigger–deeper) off southern California 14 . In bighand thornyhead, distribution depths of small (≤10 cm SL) and large size fish (≥20 cm SL) were deeper than that of medium size fish off the Pacific coast of Hokkaido, northern Japan, in 2001–2004, suggesting that bighand thornyhead does not show a bigger–deeper trend 15 . However, it is possible that the size–depth relationship is variable with change in fish biomass.…”
Section: Introductionmentioning
confidence: 94%
“…In southern Tohoku, the %IRI of squids, euphausiids, benthic shrimps, and/or fishes was high in shallower waters. The nutritional value of crustaceans is two-to fourfold higher than ophiuroids or polychaetes, and fish is considered the best quality food item for bighand thornyhead [9]. Firefly squid [18] and benthic shrimps [4] are also an important food item for bighand thornyhead in the Tohoku area.…”
Section: Discussionmentioning
confidence: 99%
“…Thus, in the Tohoku area, it is probable that small bighand thornyhead are potentially in poorer condition and that specimens distributed in deeper waters have a lower nutritional status. The nutritional status and feeding habits of bighand thornyhead have been studied off the Pacific coast of Hokkaido Island, northern Japan [8,9], but not in the Tohoku area. Therefore, the present study examines the spatiotemporal variations in nutritional status and feeding habits of immature bighand thornyhead in the Tohoku area and discusses the effect on growth, due to the variations in nutritional status and feeding habits, produced by distributional changes.…”
Section: Introductionmentioning
confidence: 99%