Lifespan and growth of Astarte borealis (Bivalvia) from Kandalaksha Gulf, White Sea, Russia
Marine bivalves are well known for their impressive lifespans. Like trees, bivalves grow by accretion and record age and size throughout ontogeny in their shell. Bivalves, however, can form growth increments at several different periodicities depending on their local environment. Thus, establishing...
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ftcarolinadr:cdr.lib.unc.edu:41687t135 2023-06-11T04:09:39+02:00 Lifespan and growth of Astarte borealis (Bivalvia) from Kandalaksha Gulf, White Sea, Russia Moss, D.K. Surge, D. Khaitov, V. College of Arts and Sciences, Department of Geological Sciences 2018 https://doi.org/10.17615/z8p6-2v83 https://cdr.lib.unc.edu/downloads/h989rc77w?file=thumbnail https://cdr.lib.unc.edu/downloads/h989rc77w English eng https://doi.org/10.17615/z8p6-2v83 https://cdr.lib.unc.edu/downloads/h989rc77w?file=thumbnail https://cdr.lib.unc.edu/downloads/h989rc77w Polar Biology, 41(7) White Sea von Bertalanffy Lifespan Growth Longevity Astarte borealis Article 2018 ftcarolinadr https://doi.org/10.17615/z8p6-2v83 2023-05-28T21:02:16Z Marine bivalves are well known for their impressive lifespans. Like trees, bivalves grow by accretion and record age and size throughout ontogeny in their shell. Bivalves, however, can form growth increments at several different periodicities depending on their local environment. Thus, establishing lifespans and growth rates of marine bivalves requires a proper identification of annual growth increments. Here, we use isotope sclerochronology to decipher the accretionary growth record of modern Astarte borealis from the White Sea, Russia (N 67°05.70′; E 32°40.85′). Unlike winter growth increments observed in many other cold-temperate and boreal bivalve and limpet species, prominent growth increments in A. borealis corresponded to the most negative values in the oxygen isotope (δ18O) time series indicating that they formed during summer. Furthermore, summer growth increments do not coincide with the external concentric ridges on the shell making the latter feature an unreliable indicator of age. Similar to many other polar bivalves, A. borealis shows slow growth and long life. The von Bertalanffy growth equation for our sample is Ht = 29.39*(1 − e(− 0.11(t−(− 1.86))). Lifespans of individuals examined here (n = 18) range from 16 to 48 years. Given its impressive longevity and widespread polar distribution, A. borealis may be a potentially valuable skeletal archive for monitoring environmental conditions in the Arctic Ocean and boreal seas in the face of changing climate. Article in Journal/Newspaper Arctic Arctic Ocean Kandalaksha Gulf Polar Biology White Sea Carolina Digital Repository (UNC - University of North Carolina) Arctic Arctic Ocean White Sea Kandalaksha ENVELOPE(32.417,32.417,67.133,67.133) |
institution |
Open Polar |
collection |
Carolina Digital Repository (UNC - University of North Carolina) |
op_collection_id |
ftcarolinadr |
language |
English |
topic |
White Sea von Bertalanffy Lifespan Growth Longevity Astarte borealis |
spellingShingle |
White Sea von Bertalanffy Lifespan Growth Longevity Astarte borealis Moss, D.K. Surge, D. Khaitov, V. Lifespan and growth of Astarte borealis (Bivalvia) from Kandalaksha Gulf, White Sea, Russia |
topic_facet |
White Sea von Bertalanffy Lifespan Growth Longevity Astarte borealis |
description |
Marine bivalves are well known for their impressive lifespans. Like trees, bivalves grow by accretion and record age and size throughout ontogeny in their shell. Bivalves, however, can form growth increments at several different periodicities depending on their local environment. Thus, establishing lifespans and growth rates of marine bivalves requires a proper identification of annual growth increments. Here, we use isotope sclerochronology to decipher the accretionary growth record of modern Astarte borealis from the White Sea, Russia (N 67°05.70′; E 32°40.85′). Unlike winter growth increments observed in many other cold-temperate and boreal bivalve and limpet species, prominent growth increments in A. borealis corresponded to the most negative values in the oxygen isotope (δ18O) time series indicating that they formed during summer. Furthermore, summer growth increments do not coincide with the external concentric ridges on the shell making the latter feature an unreliable indicator of age. Similar to many other polar bivalves, A. borealis shows slow growth and long life. The von Bertalanffy growth equation for our sample is Ht = 29.39*(1 − e(− 0.11(t−(− 1.86))). Lifespans of individuals examined here (n = 18) range from 16 to 48 years. Given its impressive longevity and widespread polar distribution, A. borealis may be a potentially valuable skeletal archive for monitoring environmental conditions in the Arctic Ocean and boreal seas in the face of changing climate. |
author2 |
College of Arts and Sciences, Department of Geological Sciences |
format |
Article in Journal/Newspaper |
author |
Moss, D.K. Surge, D. Khaitov, V. |
author_facet |
Moss, D.K. Surge, D. Khaitov, V. |
author_sort |
Moss, D.K. |
title |
Lifespan and growth of Astarte borealis (Bivalvia) from Kandalaksha Gulf, White Sea, Russia |
title_short |
Lifespan and growth of Astarte borealis (Bivalvia) from Kandalaksha Gulf, White Sea, Russia |
title_full |
Lifespan and growth of Astarte borealis (Bivalvia) from Kandalaksha Gulf, White Sea, Russia |
title_fullStr |
Lifespan and growth of Astarte borealis (Bivalvia) from Kandalaksha Gulf, White Sea, Russia |
title_full_unstemmed |
Lifespan and growth of Astarte borealis (Bivalvia) from Kandalaksha Gulf, White Sea, Russia |
title_sort |
lifespan and growth of astarte borealis (bivalvia) from kandalaksha gulf, white sea, russia |
publishDate |
2018 |
url |
https://doi.org/10.17615/z8p6-2v83 https://cdr.lib.unc.edu/downloads/h989rc77w?file=thumbnail https://cdr.lib.unc.edu/downloads/h989rc77w |
long_lat |
ENVELOPE(32.417,32.417,67.133,67.133) |
geographic |
Arctic Arctic Ocean White Sea Kandalaksha |
geographic_facet |
Arctic Arctic Ocean White Sea Kandalaksha |
genre |
Arctic Arctic Ocean Kandalaksha Gulf Polar Biology White Sea |
genre_facet |
Arctic Arctic Ocean Kandalaksha Gulf Polar Biology White Sea |
op_source |
Polar Biology, 41(7) |
op_relation |
https://doi.org/10.17615/z8p6-2v83 https://cdr.lib.unc.edu/downloads/h989rc77w?file=thumbnail https://cdr.lib.unc.edu/downloads/h989rc77w |
op_doi |
https://doi.org/10.17615/z8p6-2v83 |
_version_ |
1768383616433258496 |