Assessing the size at maturity, spawning, and condition of the truncate soft-shell clam (Mya truncata) of southern Baffin Island, Nunavut, Canada
The truncate soft-shell clam Mya truncata is an important source of country food for Inuit communities across the territory of Nunavut, Canada. M. truncata also plays an important role in marine ecosystems, yet there is little understanding of their life history and condition in Canadian Arctic wate...
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ftdoajarticles:oai:doaj.org/article:08e23e9c62334482b332be089bc6c240 2024-01-07T09:41:32+01:00 Assessing the size at maturity, spawning, and condition of the truncate soft-shell clam (Mya truncata) of southern Baffin Island, Nunavut, Canada Jessica M. Wood Meghan Donovan Scott M. Grant 2022-06-01T00:00:00Z https://doi.org/10.7717/peerj.13231 https://doaj.org/article/08e23e9c62334482b332be089bc6c240 EN eng PeerJ Inc. https://peerj.com/articles/13231.pdf https://peerj.com/articles/13231/ https://doaj.org/toc/2167-8359 doi:10.7717/peerj.13231 2167-8359 https://doaj.org/article/08e23e9c62334482b332be089bc6c240 PeerJ, Vol 10, p e13231 (2022) Soft-shell clams Life history Condition Arctic Nunavut Frobisher Bay Medicine R Biology (General) QH301-705.5 article 2022 ftdoajarticles https://doi.org/10.7717/peerj.13231 2023-12-10T01:51:21Z The truncate soft-shell clam Mya truncata is an important source of country food for Inuit communities across the territory of Nunavut, Canada. M. truncata also plays an important role in marine ecosystems, yet there is little understanding of their life history and condition in Canadian Arctic waters. To provide a foundation on which aspects of the life history and condition of M. truncata of Baffin Island can be monitored in the future with a changing climate and fishery development, this study estimated size at maturity and provides insights into the spawning cycle and weight-length condition indices of clams from inner Frobisher Bay and the north shore of the Hudson Strait. Male and female M. truncata exhibited similar lengths at 50% attainment of sexual maturity, 31 mm and 32 mm shell length (SL), respectively. Most (77%) of the sexually mature M. truncata collected from inner Frobisher Bay in late August and 35% of clams collected from the Hudson Strait in early September were in the ripe stage of gonadal development. These results lead us to suggest a spring spawning season and that M. truncata invest in gonadal development for the next year’s spawning during the late summer-early autumn ice-free season while phytoplankton concentrations are high. Dry bodyweight-SL relationships were used to show that M. truncata condition can differ significantly over small and large spatial scales based on plotted 95% confidence intervals. Article in Journal/Newspaper Arctic Baffin Island Baffin Frobisher Bay Hudson Strait inuit Nunavut Phytoplankton Directory of Open Access Journals: DOAJ Articles Arctic Baffin Island Canada Frobisher Bay ENVELOPE(-66.581,-66.581,62.834,62.834) Hudson Hudson Strait ENVELOPE(-70.000,-70.000,62.000,62.000) Nunavut PeerJ 10 e13231 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Soft-shell clams Life history Condition Arctic Nunavut Frobisher Bay Medicine R Biology (General) QH301-705.5 |
spellingShingle |
Soft-shell clams Life history Condition Arctic Nunavut Frobisher Bay Medicine R Biology (General) QH301-705.5 Jessica M. Wood Meghan Donovan Scott M. Grant Assessing the size at maturity, spawning, and condition of the truncate soft-shell clam (Mya truncata) of southern Baffin Island, Nunavut, Canada |
topic_facet |
Soft-shell clams Life history Condition Arctic Nunavut Frobisher Bay Medicine R Biology (General) QH301-705.5 |
description |
The truncate soft-shell clam Mya truncata is an important source of country food for Inuit communities across the territory of Nunavut, Canada. M. truncata also plays an important role in marine ecosystems, yet there is little understanding of their life history and condition in Canadian Arctic waters. To provide a foundation on which aspects of the life history and condition of M. truncata of Baffin Island can be monitored in the future with a changing climate and fishery development, this study estimated size at maturity and provides insights into the spawning cycle and weight-length condition indices of clams from inner Frobisher Bay and the north shore of the Hudson Strait. Male and female M. truncata exhibited similar lengths at 50% attainment of sexual maturity, 31 mm and 32 mm shell length (SL), respectively. Most (77%) of the sexually mature M. truncata collected from inner Frobisher Bay in late August and 35% of clams collected from the Hudson Strait in early September were in the ripe stage of gonadal development. These results lead us to suggest a spring spawning season and that M. truncata invest in gonadal development for the next year’s spawning during the late summer-early autumn ice-free season while phytoplankton concentrations are high. Dry bodyweight-SL relationships were used to show that M. truncata condition can differ significantly over small and large spatial scales based on plotted 95% confidence intervals. |
format |
Article in Journal/Newspaper |
author |
Jessica M. Wood Meghan Donovan Scott M. Grant |
author_facet |
Jessica M. Wood Meghan Donovan Scott M. Grant |
author_sort |
Jessica M. Wood |
title |
Assessing the size at maturity, spawning, and condition of the truncate soft-shell clam (Mya truncata) of southern Baffin Island, Nunavut, Canada |
title_short |
Assessing the size at maturity, spawning, and condition of the truncate soft-shell clam (Mya truncata) of southern Baffin Island, Nunavut, Canada |
title_full |
Assessing the size at maturity, spawning, and condition of the truncate soft-shell clam (Mya truncata) of southern Baffin Island, Nunavut, Canada |
title_fullStr |
Assessing the size at maturity, spawning, and condition of the truncate soft-shell clam (Mya truncata) of southern Baffin Island, Nunavut, Canada |
title_full_unstemmed |
Assessing the size at maturity, spawning, and condition of the truncate soft-shell clam (Mya truncata) of southern Baffin Island, Nunavut, Canada |
title_sort |
assessing the size at maturity, spawning, and condition of the truncate soft-shell clam (mya truncata) of southern baffin island, nunavut, canada |
publisher |
PeerJ Inc. |
publishDate |
2022 |
url |
https://doi.org/10.7717/peerj.13231 https://doaj.org/article/08e23e9c62334482b332be089bc6c240 |
long_lat |
ENVELOPE(-66.581,-66.581,62.834,62.834) ENVELOPE(-70.000,-70.000,62.000,62.000) |
geographic |
Arctic Baffin Island Canada Frobisher Bay Hudson Hudson Strait Nunavut |
geographic_facet |
Arctic Baffin Island Canada Frobisher Bay Hudson Hudson Strait Nunavut |
genre |
Arctic Baffin Island Baffin Frobisher Bay Hudson Strait inuit Nunavut Phytoplankton |
genre_facet |
Arctic Baffin Island Baffin Frobisher Bay Hudson Strait inuit Nunavut Phytoplankton |
op_source |
PeerJ, Vol 10, p e13231 (2022) |
op_relation |
https://peerj.com/articles/13231.pdf https://peerj.com/articles/13231/ https://doaj.org/toc/2167-8359 doi:10.7717/peerj.13231 2167-8359 https://doaj.org/article/08e23e9c62334482b332be089bc6c240 |
op_doi |
https://doi.org/10.7717/peerj.13231 |
container_title |
PeerJ |
container_volume |
10 |
container_start_page |
e13231 |
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1787422336839843840 |