Diversity, distribution and ecology of gonatid squids in the subarctic Pacific: A review
Current knowledge on biology of the squid family Gonatidae in the subarctic Pacific is reviewed. Up to this date, 10 species of the genus Gonatus (of which two are unnamed yet), a single species of the genus Eogonatus, six species of the genus Gonatopsis and two species of the genus Berryteuthis are...
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Ocean Research Institute, Univ. of Tokyo
1988
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ftoceanrep:oai:oceanrep.geomar.de:34399 2023-05-15T18:27:59+02:00 Diversity, distribution and ecology of gonatid squids in the subarctic Pacific: A review Okutani, Takashi Kubodera, Tsunemi Jefferts, Katharine 1988 text https://oceanrep.geomar.de/id/eprint/34399/ https://oceanrep.geomar.de/id/eprint/34399/13/1266.pdf en eng Ocean Research Institute, Univ. of Tokyo https://oceanrep.geomar.de/id/eprint/34399/13/1266.pdf Okutani, T., Kubodera, T. and Jefferts, K. (1988) Diversity, distribution and ecology of gonatid squids in the subarctic Pacific: A review. Bulletin of the Ocean Research Institute, 26 (1). pp. 159-192. info:eu-repo/semantics/restrictedAccess Article PeerReviewed 1988 ftoceanrep 2023-04-07T15:28:28Z Current knowledge on biology of the squid family Gonatidae in the subarctic Pacific is reviewed. Up to this date, 10 species of the genus Gonatus (of which two are unnamed yet), a single species of the genus Eogonatus, six species of the genus Gonatopsis and two species of the genus Berryteuthis are known from the subarctic Pacific. Their distribution patterns can be classified into three major types: (1) trans-Pacific species (with two subtypes), (2) Northwest Pacific species, and (3) Northeast Pacific species. The family Gonatidae is divisible into two broad ecological types: (1) muscular, epi- to mesopelagic and eurybathic forms, and (2) lessmuscular, stenobathic and nektobenthic forms. Little is known about the prey of gonatids. However, their predators are diverse, including fishes, sea-birds and mammals, thus gonatids play an important role for the food-chain in the subarctic Pacific. Structures of the tentacular club, particularly metamorphose into hooks are important characters for tracing morphological changes in growth. Allametrie growth of some species has been clarified. The spawning biology of two commercially fished species (Gonatopsis boreaUs and Berryteuthis magister) is described, but spawning adults of non-commercial species have seldom been observed. The seasonal occurrence of planktonic juveniles of gonatids may be related to spring phytoplankton blooms. Article in Journal/Newspaper Subarctic OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Pacific |
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Open Polar |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
language |
English |
description |
Current knowledge on biology of the squid family Gonatidae in the subarctic Pacific is reviewed. Up to this date, 10 species of the genus Gonatus (of which two are unnamed yet), a single species of the genus Eogonatus, six species of the genus Gonatopsis and two species of the genus Berryteuthis are known from the subarctic Pacific. Their distribution patterns can be classified into three major types: (1) trans-Pacific species (with two subtypes), (2) Northwest Pacific species, and (3) Northeast Pacific species. The family Gonatidae is divisible into two broad ecological types: (1) muscular, epi- to mesopelagic and eurybathic forms, and (2) lessmuscular, stenobathic and nektobenthic forms. Little is known about the prey of gonatids. However, their predators are diverse, including fishes, sea-birds and mammals, thus gonatids play an important role for the food-chain in the subarctic Pacific. Structures of the tentacular club, particularly metamorphose into hooks are important characters for tracing morphological changes in growth. Allametrie growth of some species has been clarified. The spawning biology of two commercially fished species (Gonatopsis boreaUs and Berryteuthis magister) is described, but spawning adults of non-commercial species have seldom been observed. The seasonal occurrence of planktonic juveniles of gonatids may be related to spring phytoplankton blooms. |
format |
Article in Journal/Newspaper |
author |
Okutani, Takashi Kubodera, Tsunemi Jefferts, Katharine |
spellingShingle |
Okutani, Takashi Kubodera, Tsunemi Jefferts, Katharine Diversity, distribution and ecology of gonatid squids in the subarctic Pacific: A review |
author_facet |
Okutani, Takashi Kubodera, Tsunemi Jefferts, Katharine |
author_sort |
Okutani, Takashi |
title |
Diversity, distribution and ecology of gonatid squids in the subarctic Pacific: A review |
title_short |
Diversity, distribution and ecology of gonatid squids in the subarctic Pacific: A review |
title_full |
Diversity, distribution and ecology of gonatid squids in the subarctic Pacific: A review |
title_fullStr |
Diversity, distribution and ecology of gonatid squids in the subarctic Pacific: A review |
title_full_unstemmed |
Diversity, distribution and ecology of gonatid squids in the subarctic Pacific: A review |
title_sort |
diversity, distribution and ecology of gonatid squids in the subarctic pacific: a review |
publisher |
Ocean Research Institute, Univ. of Tokyo |
publishDate |
1988 |
url |
https://oceanrep.geomar.de/id/eprint/34399/ https://oceanrep.geomar.de/id/eprint/34399/13/1266.pdf |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Subarctic |
genre_facet |
Subarctic |
op_relation |
https://oceanrep.geomar.de/id/eprint/34399/13/1266.pdf Okutani, T., Kubodera, T. and Jefferts, K. (1988) Diversity, distribution and ecology of gonatid squids in the subarctic Pacific: A review. Bulletin of the Ocean Research Institute, 26 (1). pp. 159-192. |
op_rights |
info:eu-repo/semantics/restrictedAccess |
_version_ |
1766210281624567808 |