Growth and production of Hiatella arctica (Bivalvia) in a high-Arctic fjord (Young Sound, Northeast Greenland)
Abundance and biomass of the bivalve Hiatella arctica (L.) was investigated at depths from 10 to 80 m along 6 transects in the high-Arctic fjord Young Sound, NE Greenland (74° 18.58′ N, 20° 15.04′ W). The highest abundance was found at a depth of 20 m, and the mean intertransect density at this dept...
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ftuniaarhuspubl:oai:pure.atira.dk:publications/f6a1b914-713b-4f68-8ed2-7e6ea7a9048f 2023-05-15T14:24:54+02:00 Growth and production of Hiatella arctica (Bivalvia) in a high-Arctic fjord (Young Sound, Northeast Greenland) Sejr, M.K. Sand, M.K. Jensen, K.T. Petersen, J.K. Christensen, Peter Bondo Rysgaard, S. 2002-11-29 https://pure.au.dk/portal/da/publications/growth-and-production-of-hiatella-arctica-bivalvia-in-a-higharctic-fjord-young-sound-northeast-greenland(f6a1b914-713b-4f68-8ed2-7e6ea7a9048f).html http://www.scopus.com/inward/record.url?scp=0037196057&partnerID=8YFLogxK eng eng info:eu-repo/semantics/restrictedAccess Sejr , M K , Sand , M K , Jensen , K T , Petersen , J K , Christensen , P B & Rysgaard , S 2002 , ' Growth and production of Hiatella arctica (Bivalvia) in a high-Arctic fjord (Young Sound, Northeast Greenland) ' , Marine Ecology - Progress Series , vol. 244 , pp. 163-169 . article 2002 ftuniaarhuspubl 2020-07-18T21:31:03Z Abundance and biomass of the bivalve Hiatella arctica (L.) was investigated at depths from 10 to 80 m along 6 transects in the high-Arctic fjord Young Sound, NE Greenland (74° 18.58′ N, 20° 15.04′ W). The highest abundance was found at a depth of 20 m, and the mean intertransect density at this depth was found to be 57 ind. m with a biomass of 6.2 g shell-free dry weight (SFDW) m. Age was estimated by counting annual growth rings in acetate peels made by cutting through the umbo region. The age of the oldest individual was estimated to be 126 yr. The Von Bertalanffy growth function fitted to length-at-age data showed that a maximum shell length (L∞) of 37 mm was attained in approximately 35 yr. The mean annual growth rate was 0.14 yr corresponding to a mean annual production of 0.30 g SFDW m (depth 10 to 60 m). The annual somatic production-to-biomass ratio was 0.095. The size distribution of clams was bimodal with a group of very small (shell length 6 to 8 mm) individuals and another group of individuals around the maximum shell length. Large individuals are relatively abundant as a result of their long life span and the absence of significant mortality agents in this area. Based on production estimates, the carbon demand of the H. arctica population accounts for 3.6% of pelagic production in outer Young Sound. Article in Journal/Newspaper Arctic Arctic Greenland Aarhus University: Research Arctic Greenland |
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Open Polar |
collection |
Aarhus University: Research |
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ftuniaarhuspubl |
language |
English |
description |
Abundance and biomass of the bivalve Hiatella arctica (L.) was investigated at depths from 10 to 80 m along 6 transects in the high-Arctic fjord Young Sound, NE Greenland (74° 18.58′ N, 20° 15.04′ W). The highest abundance was found at a depth of 20 m, and the mean intertransect density at this depth was found to be 57 ind. m with a biomass of 6.2 g shell-free dry weight (SFDW) m. Age was estimated by counting annual growth rings in acetate peels made by cutting through the umbo region. The age of the oldest individual was estimated to be 126 yr. The Von Bertalanffy growth function fitted to length-at-age data showed that a maximum shell length (L∞) of 37 mm was attained in approximately 35 yr. The mean annual growth rate was 0.14 yr corresponding to a mean annual production of 0.30 g SFDW m (depth 10 to 60 m). The annual somatic production-to-biomass ratio was 0.095. The size distribution of clams was bimodal with a group of very small (shell length 6 to 8 mm) individuals and another group of individuals around the maximum shell length. Large individuals are relatively abundant as a result of their long life span and the absence of significant mortality agents in this area. Based on production estimates, the carbon demand of the H. arctica population accounts for 3.6% of pelagic production in outer Young Sound. |
format |
Article in Journal/Newspaper |
author |
Sejr, M.K. Sand, M.K. Jensen, K.T. Petersen, J.K. Christensen, Peter Bondo Rysgaard, S. |
spellingShingle |
Sejr, M.K. Sand, M.K. Jensen, K.T. Petersen, J.K. Christensen, Peter Bondo Rysgaard, S. Growth and production of Hiatella arctica (Bivalvia) in a high-Arctic fjord (Young Sound, Northeast Greenland) |
author_facet |
Sejr, M.K. Sand, M.K. Jensen, K.T. Petersen, J.K. Christensen, Peter Bondo Rysgaard, S. |
author_sort |
Sejr, M.K. |
title |
Growth and production of Hiatella arctica (Bivalvia) in a high-Arctic fjord (Young Sound, Northeast Greenland) |
title_short |
Growth and production of Hiatella arctica (Bivalvia) in a high-Arctic fjord (Young Sound, Northeast Greenland) |
title_full |
Growth and production of Hiatella arctica (Bivalvia) in a high-Arctic fjord (Young Sound, Northeast Greenland) |
title_fullStr |
Growth and production of Hiatella arctica (Bivalvia) in a high-Arctic fjord (Young Sound, Northeast Greenland) |
title_full_unstemmed |
Growth and production of Hiatella arctica (Bivalvia) in a high-Arctic fjord (Young Sound, Northeast Greenland) |
title_sort |
growth and production of hiatella arctica (bivalvia) in a high-arctic fjord (young sound, northeast greenland) |
publishDate |
2002 |
url |
https://pure.au.dk/portal/da/publications/growth-and-production-of-hiatella-arctica-bivalvia-in-a-higharctic-fjord-young-sound-northeast-greenland(f6a1b914-713b-4f68-8ed2-7e6ea7a9048f).html http://www.scopus.com/inward/record.url?scp=0037196057&partnerID=8YFLogxK |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Arctic Greenland |
genre_facet |
Arctic Arctic Greenland |
op_source |
Sejr , M K , Sand , M K , Jensen , K T , Petersen , J K , Christensen , P B & Rysgaard , S 2002 , ' Growth and production of Hiatella arctica (Bivalvia) in a high-Arctic fjord (Young Sound, Northeast Greenland) ' , Marine Ecology - Progress Series , vol. 244 , pp. 163-169 . |
op_rights |
info:eu-repo/semantics/restrictedAccess |
_version_ |
1766297351659454464 |