A first fecundity study of the female snow crab Chionoecetes opilio Fabricius, 1788 (Decapoda: Brachyura: Oregoniidae) of the newly established population in the Barents Sea
Source at https://doi.org/10.1093/jcbiol/ruz039. The snow crab Chionoecetes opilio Fabricius, 1788 is a newly established species in the Barents Sea. Since the first individuals were recorded in 1996, the population has increased and a fishery was initiated in 2012. Mature female snow crab caught in...
Published in: | Journal of Crustacean Biology |
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Language: | English |
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Oxford University Press
2019
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Online Access: | https://hdl.handle.net/10037/16398 https://doi.org/10.1093/jcbiol/ruz039 |
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ftunivtroemsoe:oai:munin.uit.no:10037/16398 2023-05-15T15:09:51+02:00 A first fecundity study of the female snow crab Chionoecetes opilio Fabricius, 1788 (Decapoda: Brachyura: Oregoniidae) of the newly established population in the Barents Sea Danielsen, Hanna Ellerine Helle Hjelset, Ann Merete Bluhm, Bodil Hvingel, Carsten Agnalt, Ann-Lisbeth 2019-06-11 https://hdl.handle.net/10037/16398 https://doi.org/10.1093/jcbiol/ruz039 eng eng Oxford University Press Journal of Crustacean Biology Danielsen, H.E.H., Hjelset, A.M., Bluhm, B., Hvingel, C. & Agnalt, A-L. (2019). A first fecundity study of the female snow crab Chionoecetes opilio Fabricius, 1788 (Decapoda: Brachyura: Oregoniidae) of the newly established population in the Barents Sea. Journal of Crustacean Biology, 39 (4), 485-492. https://doi.org/10.1093/jcbiol/ruz039 FRIDAID 1736340 doi:10.1093/jcbiol/ruz039 0278-0372 1937-240X https://hdl.handle.net/10037/16398 openAccess VDP::Mathematics and natural science: 400::Zoology and botany: 480 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480 Arctic Ocean crab fisheries life history non-native species reproductive potential size-fecundity relationship Journal article Tidsskriftartikkel Peer reviewed 2019 ftunivtroemsoe https://doi.org/10.1093/jcbiol/ruz039 2021-06-25T17:56:52Z Source at https://doi.org/10.1093/jcbiol/ruz039. The snow crab Chionoecetes opilio Fabricius, 1788 is a newly established species in the Barents Sea. Since the first individuals were recorded in 1996, the population has increased and a fishery was initiated in 2012. Mature female snow crab caught in the central Barents Sea were investigated with regards to fecundity. Ovigerous females ( N = 185) ranged from 48 to 100 mm carapace width (CW). Fecundity was 15,000–184,000 eggs per female with 100% clutch fullness, and was positively related to body size (fecundity = 0.233 * CW 2.944 ) consistent with relationships described for other snow crab populations. Eight females had less than 100% clutch fullness, two of which had only 10% clutch fullness along with an old shell, indicating senescence. Dry egg weight was on average 0.065 mg and was hardly affected by CW. Females across all sizes invest similarly in individual eggs, and potential size-dependent differences in fitness are more related to the number of eggs produced than to the investment into individual eggs. We conclude that the fecundity-at-size of females is overall comparable to that of other populations, although the presence of large females results in high maximum individual fecundity estimates. Article in Journal/Newspaper Arctic Arctic Ocean Barents Sea Chionoecetes opilio Snow crab University of Tromsø: Munin Open Research Archive Arctic Arctic Ocean Barents Sea Journal of Crustacean Biology 39 4 485 492 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
VDP::Mathematics and natural science: 400::Zoology and botany: 480 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480 Arctic Ocean crab fisheries life history non-native species reproductive potential size-fecundity relationship |
spellingShingle |
VDP::Mathematics and natural science: 400::Zoology and botany: 480 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480 Arctic Ocean crab fisheries life history non-native species reproductive potential size-fecundity relationship Danielsen, Hanna Ellerine Helle Hjelset, Ann Merete Bluhm, Bodil Hvingel, Carsten Agnalt, Ann-Lisbeth A first fecundity study of the female snow crab Chionoecetes opilio Fabricius, 1788 (Decapoda: Brachyura: Oregoniidae) of the newly established population in the Barents Sea |
topic_facet |
VDP::Mathematics and natural science: 400::Zoology and botany: 480 VDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480 Arctic Ocean crab fisheries life history non-native species reproductive potential size-fecundity relationship |
description |
Source at https://doi.org/10.1093/jcbiol/ruz039. The snow crab Chionoecetes opilio Fabricius, 1788 is a newly established species in the Barents Sea. Since the first individuals were recorded in 1996, the population has increased and a fishery was initiated in 2012. Mature female snow crab caught in the central Barents Sea were investigated with regards to fecundity. Ovigerous females ( N = 185) ranged from 48 to 100 mm carapace width (CW). Fecundity was 15,000–184,000 eggs per female with 100% clutch fullness, and was positively related to body size (fecundity = 0.233 * CW 2.944 ) consistent with relationships described for other snow crab populations. Eight females had less than 100% clutch fullness, two of which had only 10% clutch fullness along with an old shell, indicating senescence. Dry egg weight was on average 0.065 mg and was hardly affected by CW. Females across all sizes invest similarly in individual eggs, and potential size-dependent differences in fitness are more related to the number of eggs produced than to the investment into individual eggs. We conclude that the fecundity-at-size of females is overall comparable to that of other populations, although the presence of large females results in high maximum individual fecundity estimates. |
format |
Article in Journal/Newspaper |
author |
Danielsen, Hanna Ellerine Helle Hjelset, Ann Merete Bluhm, Bodil Hvingel, Carsten Agnalt, Ann-Lisbeth |
author_facet |
Danielsen, Hanna Ellerine Helle Hjelset, Ann Merete Bluhm, Bodil Hvingel, Carsten Agnalt, Ann-Lisbeth |
author_sort |
Danielsen, Hanna Ellerine Helle |
title |
A first fecundity study of the female snow crab Chionoecetes opilio Fabricius, 1788 (Decapoda: Brachyura: Oregoniidae) of the newly established population in the Barents Sea |
title_short |
A first fecundity study of the female snow crab Chionoecetes opilio Fabricius, 1788 (Decapoda: Brachyura: Oregoniidae) of the newly established population in the Barents Sea |
title_full |
A first fecundity study of the female snow crab Chionoecetes opilio Fabricius, 1788 (Decapoda: Brachyura: Oregoniidae) of the newly established population in the Barents Sea |
title_fullStr |
A first fecundity study of the female snow crab Chionoecetes opilio Fabricius, 1788 (Decapoda: Brachyura: Oregoniidae) of the newly established population in the Barents Sea |
title_full_unstemmed |
A first fecundity study of the female snow crab Chionoecetes opilio Fabricius, 1788 (Decapoda: Brachyura: Oregoniidae) of the newly established population in the Barents Sea |
title_sort |
first fecundity study of the female snow crab chionoecetes opilio fabricius, 1788 (decapoda: brachyura: oregoniidae) of the newly established population in the barents sea |
publisher |
Oxford University Press |
publishDate |
2019 |
url |
https://hdl.handle.net/10037/16398 https://doi.org/10.1093/jcbiol/ruz039 |
geographic |
Arctic Arctic Ocean Barents Sea |
geographic_facet |
Arctic Arctic Ocean Barents Sea |
genre |
Arctic Arctic Ocean Barents Sea Chionoecetes opilio Snow crab |
genre_facet |
Arctic Arctic Ocean Barents Sea Chionoecetes opilio Snow crab |
op_relation |
Journal of Crustacean Biology Danielsen, H.E.H., Hjelset, A.M., Bluhm, B., Hvingel, C. & Agnalt, A-L. (2019). A first fecundity study of the female snow crab Chionoecetes opilio Fabricius, 1788 (Decapoda: Brachyura: Oregoniidae) of the newly established population in the Barents Sea. Journal of Crustacean Biology, 39 (4), 485-492. https://doi.org/10.1093/jcbiol/ruz039 FRIDAID 1736340 doi:10.1093/jcbiol/ruz039 0278-0372 1937-240X https://hdl.handle.net/10037/16398 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.1093/jcbiol/ruz039 |
container_title |
Journal of Crustacean Biology |
container_volume |
39 |
container_issue |
4 |
container_start_page |
485 |
op_container_end_page |
492 |
_version_ |
1766340962752135168 |