Horizontal and vertical dynamics of zooplankton and larval fish communities during mid-summer in Disko Bay, West Greenland
Disko Bay is a highly productive inlet at the border between high- and low-arctic sectors of west Greenland. The physical/chemical conditions in the bay have changed during recent decades, specifically during an inflow event in 1996–1997 that led to increased deep-water temperatures. To further unde...
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fthighwire:oai:open-archive.highwire.org:plankt:fbv034v1 2023-05-15T15:07:39+02:00 Horizontal and vertical dynamics of zooplankton and larval fish communities during mid-summer in Disko Bay, West Greenland Munk, Peter Nielsen, Torkel Gissel Hansen, Benni Winding 2015-04-29 01:03:47.0 text/html http://plankt.oxfordjournals.org/cgi/content/short/fbv034v1 https://doi.org/10.1093/plankt/fbv034 en eng Oxford University Press http://plankt.oxfordjournals.org/cgi/content/short/fbv034v1 http://dx.doi.org/10.1093/plankt/fbv034 Copyright (C) 2015, Oxford University Press Article TEXT 2015 fthighwire https://doi.org/10.1093/plankt/fbv034 2016-11-16T18:36:03Z Disko Bay is a highly productive inlet at the border between high- and low-arctic sectors of west Greenland. The physical/chemical conditions in the bay have changed during recent decades, specifically during an inflow event in 1996–1997 that led to increased deep-water temperatures. To further understand the consequences of physical changes to the plankton community in the bay, we examine findings from a field study on mesozooplankton and fish larvae in the areas of Disko Bay and Disko Bank carried out in 1997. We sampled 31 stations over 5 days along four transects and assessed horizontal and vertical distribution patterns, community composition and plankton trophodynamics. Plankton abundance was enhanced near-coast and across the pycnocline, and communities differed between regions. Polar cod ( Boreogadus saida ) and the sandeel ( Ammodytes sp.) were among the abundant fish larvae. Productivity/growth estimates of key species of copepods and fish larvae showed no apparent relationship to food availability; they reached weight specific values of ∼6% day−1 for copepods and ∼14% day−1 for fish larvae. Overall, we found a rich and dynamic plankton community, strongly influenced by the complex hydrography of the area. Thus, changes in physical characteristics of the bay could threaten the resilience of its ecosystem. Text Arctic Boreogadus saida Disko Bay Greenland Mesozooplankton polar cod Zooplankton Copepods HighWire Press (Stanford University) Arctic Disko Bank ENVELOPE(-55.000,-55.000,69.250,69.250) Greenland Journal of Plankton Research 37 3 554 570 |
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HighWire Press (Stanford University) |
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English |
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Article |
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Article Munk, Peter Nielsen, Torkel Gissel Hansen, Benni Winding Horizontal and vertical dynamics of zooplankton and larval fish communities during mid-summer in Disko Bay, West Greenland |
topic_facet |
Article |
description |
Disko Bay is a highly productive inlet at the border between high- and low-arctic sectors of west Greenland. The physical/chemical conditions in the bay have changed during recent decades, specifically during an inflow event in 1996–1997 that led to increased deep-water temperatures. To further understand the consequences of physical changes to the plankton community in the bay, we examine findings from a field study on mesozooplankton and fish larvae in the areas of Disko Bay and Disko Bank carried out in 1997. We sampled 31 stations over 5 days along four transects and assessed horizontal and vertical distribution patterns, community composition and plankton trophodynamics. Plankton abundance was enhanced near-coast and across the pycnocline, and communities differed between regions. Polar cod ( Boreogadus saida ) and the sandeel ( Ammodytes sp.) were among the abundant fish larvae. Productivity/growth estimates of key species of copepods and fish larvae showed no apparent relationship to food availability; they reached weight specific values of ∼6% day−1 for copepods and ∼14% day−1 for fish larvae. Overall, we found a rich and dynamic plankton community, strongly influenced by the complex hydrography of the area. Thus, changes in physical characteristics of the bay could threaten the resilience of its ecosystem. |
format |
Text |
author |
Munk, Peter Nielsen, Torkel Gissel Hansen, Benni Winding |
author_facet |
Munk, Peter Nielsen, Torkel Gissel Hansen, Benni Winding |
author_sort |
Munk, Peter |
title |
Horizontal and vertical dynamics of zooplankton and larval fish communities during mid-summer in Disko Bay, West Greenland |
title_short |
Horizontal and vertical dynamics of zooplankton and larval fish communities during mid-summer in Disko Bay, West Greenland |
title_full |
Horizontal and vertical dynamics of zooplankton and larval fish communities during mid-summer in Disko Bay, West Greenland |
title_fullStr |
Horizontal and vertical dynamics of zooplankton and larval fish communities during mid-summer in Disko Bay, West Greenland |
title_full_unstemmed |
Horizontal and vertical dynamics of zooplankton and larval fish communities during mid-summer in Disko Bay, West Greenland |
title_sort |
horizontal and vertical dynamics of zooplankton and larval fish communities during mid-summer in disko bay, west greenland |
publisher |
Oxford University Press |
publishDate |
2015 |
url |
http://plankt.oxfordjournals.org/cgi/content/short/fbv034v1 https://doi.org/10.1093/plankt/fbv034 |
long_lat |
ENVELOPE(-55.000,-55.000,69.250,69.250) |
geographic |
Arctic Disko Bank Greenland |
geographic_facet |
Arctic Disko Bank Greenland |
genre |
Arctic Boreogadus saida Disko Bay Greenland Mesozooplankton polar cod Zooplankton Copepods |
genre_facet |
Arctic Boreogadus saida Disko Bay Greenland Mesozooplankton polar cod Zooplankton Copepods |
op_relation |
http://plankt.oxfordjournals.org/cgi/content/short/fbv034v1 http://dx.doi.org/10.1093/plankt/fbv034 |
op_rights |
Copyright (C) 2015, Oxford University Press |
op_doi |
https://doi.org/10.1093/plankt/fbv034 |
container_title |
Journal of Plankton Research |
container_volume |
37 |
container_issue |
3 |
container_start_page |
554 |
op_container_end_page |
570 |
_version_ |
1766339105407369216 |