Feeding interactions and diet of carnivorous fishes in the Shelikhov Bay of the Sea of Okhotsk

Napazakov, V. V.

doi:10.1134/s1063074008070031

Cited by 4 publications

(1 citation statement)

References 1 publication

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“…Both fish were found to consume a large variety of prey items, which is consistent with food habit studies in other parts of their range (Bailey & Dunn 1979, Albers & Anderson 1985, Kooka et al 1998, Yamamura et al 2002, Yang 2004, Napazakov 2008. A third of the prey items were shared by both species.…”

Section: Discussionsupporting

confidence: 69%

Food habits of Pacific cod and walleye pollock in the northern Gulf of Alaska

Urban¹

2012

Mar. Ecol. Prog. Ser.

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Seasonal variations in the diets of Pacific cod Gadus macrocephalus and walleye pollock Theragra chalcogramma were examined from fish collected during 5 sampling periods from August 1998 to June 1999 in the Kodiak Island area in the Gulf of Alaska. Both species were shown to be generalist predators, eating a wide variety of fish and invertebrates. Pollock, which are limited to pelagic prey, can be considered more specialized than cod. Cod consumed 78 prey items, and pollock consumed 45 prey items, with 28 items shared by both species. Individual pollock, however, typically concentrated on a single prey item, while individual cod stomachs contained a wider variety of prey. The principal prey of Pacific cod was Tanner crab Chionoecetes bairdi, comprising > 28% of the cod diet by weight. The most common prey item for walleye pollock was the euphausiid Thysanoessa. Over the 5 sampling periods, the prey evenness and niche width occupied by the 2 species were similar, but seasonal differences were evident.

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Section: Discussionsupporting

confidence: 69%

Food habits of Pacific cod and walleye pollock in the northern Gulf of Alaska

Urban¹

2012

Mar. Ecol. Prog. Ser.

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Predicting the habitat suitability for populations of Pacific cod under different climate change scenarios considering intraspecific genetic variation

Zhao²,

Fu³

et al. 2022

Ecological Indicators

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Contrasting Population Histories of the Deep-Sea Demersal Fish, Lycodes matsubarai, in the Sea of Japan and the Sea of Okhotsk

et al. 2014

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Recent studies have revealed the impact of the drastic climate change during the last glacial period on coastal marine and anadromous species in the marginal seas of the northwestern Pacific Ocean; however, its influence on deep-sea species remains poorly understood. To compare the effects of the last glacial period on populations from the Sea of Japan and the Sea of Okhotsk, we examined the mitochondrial control region and cytochrome b gene sequences of Lycodes matsubarai, a deepsea demersal fish that inhabits these two seas. Our results showed clear genetic differentiation of populations between the two seas. The populations may have diverged during the last glacial period, probably as a result of vicariance due to the drastic sea level change. The population in the Sea of Okhotsk was larger than that in the Sea of Japan, but suddenly decreased after the last glacial period. However, the Sea of Japan population expanded after the last glacial period, coincident with high levels of oxygenation in deep-sea areas. These results elucidate regional-scale impacts of climate change on deep-sea organisms.

show abstract

Feeding interactions and diet of carnivorous fishes in the Shelikhov Bay of the Sea of Okhotsk

Cited by 4 publications

References 1 publication

Food habits of Pacific cod and walleye pollock in the northern Gulf of Alaska

Food habits of Pacific cod and walleye pollock in the northern Gulf of Alaska

Predicting the habitat suitability for populations of Pacific cod under different climate change scenarios considering intraspecific genetic variation

Contrasting Population Histories of the Deep-Sea Demersal Fish, Lycodes matsubarai, in the Sea of Japan and the Sea of Okhotsk

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