Distribution of marine invertebrate larvae in the southern Kara Sea (Russian Arctic), supplement to: Fetzer, Ingo; Deubel, Hendrik (2006): Effect of river run-off on the distribution of marine invertebrate larvae in the southern Kara Sea (Russian Arctic). Journal of Marine Systems, 60(1-2), 98-114
Within the generally oligotroph Arctic marine environment river outlets are favoured by many planktonic and benthic organisms due to their high input of organic carbon. The retention of pelagic larvae within nursery grounds and/or the ability to return to their parental grounds prior to settlement i...
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ftdatacite:10.1594/pangaea.727122 2023-05-15T14:58:08+02:00 Distribution of marine invertebrate larvae in the southern Kara Sea (Russian Arctic), supplement to: Fetzer, Ingo; Deubel, Hendrik (2006): Effect of river run-off on the distribution of marine invertebrate larvae in the southern Kara Sea (Russian Arctic). Journal of Marine Systems, 60(1-2), 98-114 Fetzer, Ingo Deubel, Hendrik 2006 application/zip https://dx.doi.org/10.1594/pangaea.727122 https://doi.pangaea.de/10.1594/PANGAEA.727122 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.1016/j.jmarsys.2005.11.005 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Multiple investigations Bucket water sampling Dredge BP00 Akademik Boris Petrov Siberian River Run-Off SIRRO Collection article Supplementary Collection of Datasets 2006 ftdatacite https://doi.org/10.1594/pangaea.727122 https://doi.org/10.1016/j.jmarsys.2005.11.005 2021-11-05T12:55:41Z Within the generally oligotroph Arctic marine environment river outlets are favoured by many planktonic and benthic organisms due to their high input of organic carbon. The retention of pelagic larvae within nursery grounds and/or the ability to return to their parental grounds prior to settlement is one important factor for the persistence of benthic communities in such river influenced areas. The southern Kara Sea is strongly controlled by high freshwater inputs from the Ob and Yenisei Rivers, which create a pronounced bi-layered pycnocline with a warm fresh/brackish water layer on top and a cold high saline marine layer below. The dispersal of five meroplanktonic species and settled juveniles (the brittle star Ophiocten sericeum, and the polychaetes Micronephtys minuta, Nereimyra aphroditoides, Phyllodoce groenlandica and Prionospio cirrifera) in relation to the adult distribution patterns was investigated. For all apart from P. cirrifera the highest densities of larvae were found in the upper brackish water layer. To assess size-at-settlement, the body sizes of larvae and newly settled juveniles were estimated and compared. Dispersal patterns ranged from virtually no adaption to river run-off as in the common, stenohaline O. sericeum and M. minuta (7 ind./m**3, 459 µm) to local retention as in N. aphroditoides (7 ind./m**3, 541 µm) and P. groenlandica (0.5 ind./m**3, 1121 µm) retained by horizontal eddies created by the outflow. Adults of P. cirrifera, which were exclusively restricted to the estuary of the Yenisei River, showed a well adapted reproductive behaviour to ensure a high retention potential of their progenies. The larvae (1.5 ind./m**3, 1513 µm) were only present in the lower water layers, most probably taking advantage of the prevailing near bottom counter current retaining them within their hatching areas. Article in Journal/Newspaper Arctic Kara Sea DataCite Metadata Store (German National Library of Science and Technology) Arctic Kara Sea Yenisei River ENVELOPE(84.738,84.738,69.718,69.718) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Multiple investigations Bucket water sampling Dredge BP00 Akademik Boris Petrov Siberian River Run-Off SIRRO |
spellingShingle |
Multiple investigations Bucket water sampling Dredge BP00 Akademik Boris Petrov Siberian River Run-Off SIRRO Fetzer, Ingo Deubel, Hendrik Distribution of marine invertebrate larvae in the southern Kara Sea (Russian Arctic), supplement to: Fetzer, Ingo; Deubel, Hendrik (2006): Effect of river run-off on the distribution of marine invertebrate larvae in the southern Kara Sea (Russian Arctic). Journal of Marine Systems, 60(1-2), 98-114 |
topic_facet |
Multiple investigations Bucket water sampling Dredge BP00 Akademik Boris Petrov Siberian River Run-Off SIRRO |
description |
Within the generally oligotroph Arctic marine environment river outlets are favoured by many planktonic and benthic organisms due to their high input of organic carbon. The retention of pelagic larvae within nursery grounds and/or the ability to return to their parental grounds prior to settlement is one important factor for the persistence of benthic communities in such river influenced areas. The southern Kara Sea is strongly controlled by high freshwater inputs from the Ob and Yenisei Rivers, which create a pronounced bi-layered pycnocline with a warm fresh/brackish water layer on top and a cold high saline marine layer below. The dispersal of five meroplanktonic species and settled juveniles (the brittle star Ophiocten sericeum, and the polychaetes Micronephtys minuta, Nereimyra aphroditoides, Phyllodoce groenlandica and Prionospio cirrifera) in relation to the adult distribution patterns was investigated. For all apart from P. cirrifera the highest densities of larvae were found in the upper brackish water layer. To assess size-at-settlement, the body sizes of larvae and newly settled juveniles were estimated and compared. Dispersal patterns ranged from virtually no adaption to river run-off as in the common, stenohaline O. sericeum and M. minuta (7 ind./m**3, 459 µm) to local retention as in N. aphroditoides (7 ind./m**3, 541 µm) and P. groenlandica (0.5 ind./m**3, 1121 µm) retained by horizontal eddies created by the outflow. Adults of P. cirrifera, which were exclusively restricted to the estuary of the Yenisei River, showed a well adapted reproductive behaviour to ensure a high retention potential of their progenies. The larvae (1.5 ind./m**3, 1513 µm) were only present in the lower water layers, most probably taking advantage of the prevailing near bottom counter current retaining them within their hatching areas. |
format |
Article in Journal/Newspaper |
author |
Fetzer, Ingo Deubel, Hendrik |
author_facet |
Fetzer, Ingo Deubel, Hendrik |
author_sort |
Fetzer, Ingo |
title |
Distribution of marine invertebrate larvae in the southern Kara Sea (Russian Arctic), supplement to: Fetzer, Ingo; Deubel, Hendrik (2006): Effect of river run-off on the distribution of marine invertebrate larvae in the southern Kara Sea (Russian Arctic). Journal of Marine Systems, 60(1-2), 98-114 |
title_short |
Distribution of marine invertebrate larvae in the southern Kara Sea (Russian Arctic), supplement to: Fetzer, Ingo; Deubel, Hendrik (2006): Effect of river run-off on the distribution of marine invertebrate larvae in the southern Kara Sea (Russian Arctic). Journal of Marine Systems, 60(1-2), 98-114 |
title_full |
Distribution of marine invertebrate larvae in the southern Kara Sea (Russian Arctic), supplement to: Fetzer, Ingo; Deubel, Hendrik (2006): Effect of river run-off on the distribution of marine invertebrate larvae in the southern Kara Sea (Russian Arctic). Journal of Marine Systems, 60(1-2), 98-114 |
title_fullStr |
Distribution of marine invertebrate larvae in the southern Kara Sea (Russian Arctic), supplement to: Fetzer, Ingo; Deubel, Hendrik (2006): Effect of river run-off on the distribution of marine invertebrate larvae in the southern Kara Sea (Russian Arctic). Journal of Marine Systems, 60(1-2), 98-114 |
title_full_unstemmed |
Distribution of marine invertebrate larvae in the southern Kara Sea (Russian Arctic), supplement to: Fetzer, Ingo; Deubel, Hendrik (2006): Effect of river run-off on the distribution of marine invertebrate larvae in the southern Kara Sea (Russian Arctic). Journal of Marine Systems, 60(1-2), 98-114 |
title_sort |
distribution of marine invertebrate larvae in the southern kara sea (russian arctic), supplement to: fetzer, ingo; deubel, hendrik (2006): effect of river run-off on the distribution of marine invertebrate larvae in the southern kara sea (russian arctic). journal of marine systems, 60(1-2), 98-114 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2006 |
url |
https://dx.doi.org/10.1594/pangaea.727122 https://doi.pangaea.de/10.1594/PANGAEA.727122 |
long_lat |
ENVELOPE(84.738,84.738,69.718,69.718) |
geographic |
Arctic Kara Sea Yenisei River |
geographic_facet |
Arctic Kara Sea Yenisei River |
genre |
Arctic Kara Sea |
genre_facet |
Arctic Kara Sea |
op_relation |
https://dx.doi.org/10.1016/j.jmarsys.2005.11.005 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.727122 https://doi.org/10.1016/j.jmarsys.2005.11.005 |
_version_ |
1766330223129788416 |