Structuring of zooplankton and fish larvae assemblages in a freshwater-influenced Greenlandic fjord: influence from hydrography and prey availability
The recent increase in temperature and freshwater runoff in the Arctic will influence the functioning of the plankton ecosystem and hence the life of the fish larvae residing in these areas. Here, we studied the strength of physical–biological linkages and the adaptability of individual larval fish...
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Oxford University Press
2014
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fthighwire:oai:open-archive.highwire.org:plankt:fbu099v1 2023-05-15T14:58:42+02:00 Structuring of zooplankton and fish larvae assemblages in a freshwater-influenced Greenlandic fjord: influence from hydrography and prey availability Swalethorp, Rasmus Malanski, Evandro Dalgaard Agersted, Mette Gissel Nielsen, Torkel Munk, Peter 2014-11-06 23:29:59.0 text/html http://plankt.oxfordjournals.org/cgi/content/short/fbu099v1 https://doi.org/10.1093/plankt/fbu099 en eng Oxford University Press http://plankt.oxfordjournals.org/cgi/content/short/fbu099v1 http://dx.doi.org/10.1093/plankt/fbu099 Copyright (C) 2014, Oxford University Press Article TEXT 2014 fthighwire https://doi.org/10.1093/plankt/fbu099 2016-11-16T18:35:58Z The recent increase in temperature and freshwater runoff in the Arctic will influence the functioning of the plankton ecosystem and hence the life of the fish larvae residing in these areas. Here, we studied the strength of physical–biological linkages and the adaptability of individual larval fish species to changing hydrographical and feeding environments in a sub-Arctic area in Greenland. The study was carried out along a transect covering a wide range of physical conditions from the deep ocean to the icecap in the Godthåbsfjord on the south-western Greenland coast. Along the transect, we identified a series of distinct zooplankton and larval fish assemblages which showed linkage to water mass characteristics, to the presence of frontal structures and to availability of preferred prey. Spawning site location and water circulation was also likely to influence distributional patterns of the individual larval fish species. Larvae were feeding on a variety of prey taxa and sizes; some larval species were generalists, while others were more specialized or fed on alternative prey taxa. Differences in feeding strategies might have the consequence that the species will be differently affected by changes in the plankton community. Accordingly, fish larvae that have a greater feeding flexibility and that are more adaptable to environmental variability may cope better with climate related changes. Text Arctic Godthåbsfjord Greenland greenlandic Zooplankton HighWire Press (Stanford University) Arctic Greenland Journal of Plankton Research 37 1 102 119 |
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English |
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Article Swalethorp, Rasmus Malanski, Evandro Dalgaard Agersted, Mette Gissel Nielsen, Torkel Munk, Peter Structuring of zooplankton and fish larvae assemblages in a freshwater-influenced Greenlandic fjord: influence from hydrography and prey availability |
topic_facet |
Article |
description |
The recent increase in temperature and freshwater runoff in the Arctic will influence the functioning of the plankton ecosystem and hence the life of the fish larvae residing in these areas. Here, we studied the strength of physical–biological linkages and the adaptability of individual larval fish species to changing hydrographical and feeding environments in a sub-Arctic area in Greenland. The study was carried out along a transect covering a wide range of physical conditions from the deep ocean to the icecap in the Godthåbsfjord on the south-western Greenland coast. Along the transect, we identified a series of distinct zooplankton and larval fish assemblages which showed linkage to water mass characteristics, to the presence of frontal structures and to availability of preferred prey. Spawning site location and water circulation was also likely to influence distributional patterns of the individual larval fish species. Larvae were feeding on a variety of prey taxa and sizes; some larval species were generalists, while others were more specialized or fed on alternative prey taxa. Differences in feeding strategies might have the consequence that the species will be differently affected by changes in the plankton community. Accordingly, fish larvae that have a greater feeding flexibility and that are more adaptable to environmental variability may cope better with climate related changes. |
format |
Text |
author |
Swalethorp, Rasmus Malanski, Evandro Dalgaard Agersted, Mette Gissel Nielsen, Torkel Munk, Peter |
author_facet |
Swalethorp, Rasmus Malanski, Evandro Dalgaard Agersted, Mette Gissel Nielsen, Torkel Munk, Peter |
author_sort |
Swalethorp, Rasmus |
title |
Structuring of zooplankton and fish larvae assemblages in a freshwater-influenced Greenlandic fjord: influence from hydrography and prey availability |
title_short |
Structuring of zooplankton and fish larvae assemblages in a freshwater-influenced Greenlandic fjord: influence from hydrography and prey availability |
title_full |
Structuring of zooplankton and fish larvae assemblages in a freshwater-influenced Greenlandic fjord: influence from hydrography and prey availability |
title_fullStr |
Structuring of zooplankton and fish larvae assemblages in a freshwater-influenced Greenlandic fjord: influence from hydrography and prey availability |
title_full_unstemmed |
Structuring of zooplankton and fish larvae assemblages in a freshwater-influenced Greenlandic fjord: influence from hydrography and prey availability |
title_sort |
structuring of zooplankton and fish larvae assemblages in a freshwater-influenced greenlandic fjord: influence from hydrography and prey availability |
publisher |
Oxford University Press |
publishDate |
2014 |
url |
http://plankt.oxfordjournals.org/cgi/content/short/fbu099v1 https://doi.org/10.1093/plankt/fbu099 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Godthåbsfjord Greenland greenlandic Zooplankton |
genre_facet |
Arctic Godthåbsfjord Greenland greenlandic Zooplankton |
op_relation |
http://plankt.oxfordjournals.org/cgi/content/short/fbu099v1 http://dx.doi.org/10.1093/plankt/fbu099 |
op_rights |
Copyright (C) 2014, Oxford University Press |
op_doi |
https://doi.org/10.1093/plankt/fbu099 |
container_title |
Journal of Plankton Research |
container_volume |
37 |
container_issue |
1 |
container_start_page |
102 |
op_container_end_page |
119 |
_version_ |
1766330834087837696 |