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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ftpubmed:oai:pubmedcentral.nih.gov:9202540 2023-05-15T15:09:52+02:00 Assessing the size at maturity, spawning, and condition of the truncate soft-shell clam (Mya truncata) of southern Baffin Island, Nunavut, Canada Wood, Jessica M. Donovan, Meghan Grant, Scott M. 2022-06-13 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9202540/ https://doi.org/10.7717/peerj.13231 en eng PeerJ Inc. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9202540/ http://dx.doi.org/10.7717/peerj.13231 ©2022 Wood et al. https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited. CC-BY PeerJ Aquaculture Fisheries and Fish Science Text 2022 ftpubmed https://doi.org/10.7717/peerj.13231 2022-06-19T01:05:39Z 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. Text Arctic Baffin Island Baffin Frobisher Bay Hudson Strait inuit Nunavut Phytoplankton PubMed Central (PMC) 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 |
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Open Polar |
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PubMed Central (PMC) |
op_collection_id |
ftpubmed |
language |
English |
topic |
Aquaculture Fisheries and Fish Science |
spellingShingle |
Aquaculture Fisheries and Fish Science Wood, Jessica M. Donovan, Meghan Grant, Scott M. Assessing the size at maturity, spawning, and condition of the truncate soft-shell clam (Mya truncata) of southern Baffin Island, Nunavut, Canada |
topic_facet |
Aquaculture Fisheries and Fish Science |
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 |
Text |
author |
Wood, Jessica M. Donovan, Meghan Grant, Scott M. |
author_facet |
Wood, Jessica M. Donovan, Meghan Grant, Scott M. |
author_sort |
Wood, Jessica M. |
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 |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9202540/ https://doi.org/10.7717/peerj.13231 |
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 |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9202540/ http://dx.doi.org/10.7717/peerj.13231 |
op_rights |
©2022 Wood et al. https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.7717/peerj.13231 |
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PeerJ |
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10 |
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e13231 |
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1766340973469630464 |