Actual fecundity of the Arctic squid Gonatus fabricii (Cephalopoda) based on the examination of a rarely encountered spent female
Gonatus fabricii (Lichtenstein, 1818) is an ecologically important squid that spends its entire life cycle within the Arctic where it is the most abundant cephalopod. Due to the rarity of mature and reproducing females, it is unknown how many eggs females spawn (actual fecundity). Among 47,000 speci...
Published in: | Molluscan Research |
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Language: | English |
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Taylor & Francis
2021
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Online Access: | https://oceanrep.geomar.de/id/eprint/52179/ https://oceanrep.geomar.de/id/eprint/52179/1/Actual%20fecundity%20of%20the%20Arctic%20squid%20Gonatus%20fabricii%20Cephalopoda%20based%20on%20the%20examination%20of%20a%20rarely%20encountered%20spent%20female.pdf https://doi.org/10.1080/13235818.2021.1898732 |
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ftoceanrep:oai:oceanrep.geomar.de:52179 2024-02-11T09:59:39+01:00 Actual fecundity of the Arctic squid Gonatus fabricii (Cephalopoda) based on the examination of a rarely encountered spent female Golikov, Alexey V. Blicher, Martin E. Hoving, Henk-Jan T. Zakharov, Denis V. Sabirov, Rushan M. 2021-03-16 text https://oceanrep.geomar.de/id/eprint/52179/ https://oceanrep.geomar.de/id/eprint/52179/1/Actual%20fecundity%20of%20the%20Arctic%20squid%20Gonatus%20fabricii%20Cephalopoda%20based%20on%20the%20examination%20of%20a%20rarely%20encountered%20spent%20female.pdf https://doi.org/10.1080/13235818.2021.1898732 en eng Taylor & Francis https://oceanrep.geomar.de/id/eprint/52179/1/Actual%20fecundity%20of%20the%20Arctic%20squid%20Gonatus%20fabricii%20Cephalopoda%20based%20on%20the%20examination%20of%20a%20rarely%20encountered%20spent%20female.pdf Golikov, A. V. , Blicher, M. E., Hoving, H. J. T. , Zakharov, D. V. and Sabirov, R. M. (2021) Actual fecundity of the Arctic squid Gonatus fabricii (Cephalopoda) based on the examination of a rarely encountered spent female. Molluscan Research, 41 (2). pp. 83-86. DOI 10.1080/13235818.2021.1898732 <https://doi.org/10.1080/13235818.2021.1898732>. doi:10.1080/13235818.2021.1898732 info:eu-repo/semantics/restrictedAccess Article PeerReviewed 2021 ftoceanrep https://doi.org/10.1080/13235818.2021.1898732 2024-01-15T00:23:13Z Gonatus fabricii (Lichtenstein, 1818) is an ecologically important squid that spends its entire life cycle within the Arctic where it is the most abundant cephalopod. Due to the rarity of mature and reproducing females, it is unknown how many eggs females spawn (actual fecundity). Among 47,000 specimens studied between 2005 and 2019 one spent, degenerated and gelatinous female with a mantle length of 230 mm was caught in West Greenland in 2019. Examination allowed the first detailed description of fecundity and spawning pattern in the species. Oocyte development shows that the most considerable maturation of mid-vitellogenic oocytes to late vitellogenic and then to ripe stages occurs immediately after the first ripe oocytes appear in the ovary. There were no ripe oocytes in the ovary or oviducts. The ovary contained an estimated 6561 oocytes and 2551 post-ovulatory follicles and hence the total fecundity was 9112. This specimen of G. fabricii realised 28.0% of its potential fecundity which is comparable to Berryteuthis magister, which also belongs to Gonatidae, and lower than in the majority of studied deep-sea squids (including other gonatids). Spent females may provide clues as to where the major spawning areas of this abundant but poorly known squid are located. Article in Journal/Newspaper Arctic Arctic Greenland OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Arctic Greenland Molluscan Research 1 4 |
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Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
language |
English |
description |
Gonatus fabricii (Lichtenstein, 1818) is an ecologically important squid that spends its entire life cycle within the Arctic where it is the most abundant cephalopod. Due to the rarity of mature and reproducing females, it is unknown how many eggs females spawn (actual fecundity). Among 47,000 specimens studied between 2005 and 2019 one spent, degenerated and gelatinous female with a mantle length of 230 mm was caught in West Greenland in 2019. Examination allowed the first detailed description of fecundity and spawning pattern in the species. Oocyte development shows that the most considerable maturation of mid-vitellogenic oocytes to late vitellogenic and then to ripe stages occurs immediately after the first ripe oocytes appear in the ovary. There were no ripe oocytes in the ovary or oviducts. The ovary contained an estimated 6561 oocytes and 2551 post-ovulatory follicles and hence the total fecundity was 9112. This specimen of G. fabricii realised 28.0% of its potential fecundity which is comparable to Berryteuthis magister, which also belongs to Gonatidae, and lower than in the majority of studied deep-sea squids (including other gonatids). Spent females may provide clues as to where the major spawning areas of this abundant but poorly known squid are located. |
format |
Article in Journal/Newspaper |
author |
Golikov, Alexey V. Blicher, Martin E. Hoving, Henk-Jan T. Zakharov, Denis V. Sabirov, Rushan M. |
spellingShingle |
Golikov, Alexey V. Blicher, Martin E. Hoving, Henk-Jan T. Zakharov, Denis V. Sabirov, Rushan M. Actual fecundity of the Arctic squid Gonatus fabricii (Cephalopoda) based on the examination of a rarely encountered spent female |
author_facet |
Golikov, Alexey V. Blicher, Martin E. Hoving, Henk-Jan T. Zakharov, Denis V. Sabirov, Rushan M. |
author_sort |
Golikov, Alexey V. |
title |
Actual fecundity of the Arctic squid Gonatus fabricii (Cephalopoda) based on the examination of a rarely encountered spent female |
title_short |
Actual fecundity of the Arctic squid Gonatus fabricii (Cephalopoda) based on the examination of a rarely encountered spent female |
title_full |
Actual fecundity of the Arctic squid Gonatus fabricii (Cephalopoda) based on the examination of a rarely encountered spent female |
title_fullStr |
Actual fecundity of the Arctic squid Gonatus fabricii (Cephalopoda) based on the examination of a rarely encountered spent female |
title_full_unstemmed |
Actual fecundity of the Arctic squid Gonatus fabricii (Cephalopoda) based on the examination of a rarely encountered spent female |
title_sort |
actual fecundity of the arctic squid gonatus fabricii (cephalopoda) based on the examination of a rarely encountered spent female |
publisher |
Taylor & Francis |
publishDate |
2021 |
url |
https://oceanrep.geomar.de/id/eprint/52179/ https://oceanrep.geomar.de/id/eprint/52179/1/Actual%20fecundity%20of%20the%20Arctic%20squid%20Gonatus%20fabricii%20Cephalopoda%20based%20on%20the%20examination%20of%20a%20rarely%20encountered%20spent%20female.pdf https://doi.org/10.1080/13235818.2021.1898732 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Arctic Greenland |
genre_facet |
Arctic Arctic Greenland |
op_relation |
https://oceanrep.geomar.de/id/eprint/52179/1/Actual%20fecundity%20of%20the%20Arctic%20squid%20Gonatus%20fabricii%20Cephalopoda%20based%20on%20the%20examination%20of%20a%20rarely%20encountered%20spent%20female.pdf Golikov, A. V. , Blicher, M. E., Hoving, H. J. T. , Zakharov, D. V. and Sabirov, R. M. (2021) Actual fecundity of the Arctic squid Gonatus fabricii (Cephalopoda) based on the examination of a rarely encountered spent female. Molluscan Research, 41 (2). pp. 83-86. DOI 10.1080/13235818.2021.1898732 <https://doi.org/10.1080/13235818.2021.1898732>. doi:10.1080/13235818.2021.1898732 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1080/13235818.2021.1898732 |
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Molluscan Research |
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