Interannual variability in abundance of North Sea jellyfish and links to the North Atlantic Oscillation
Pronounced interannual variability in the abundance of medusae of the jellyfish species Aurelia aurita , Cyanea lamarckii , and Cyanea capillata (Phylum Cnidaria, Class Scyphozoa) in the North Sea was evident in data arising from the International Council for the Exploration of the Seas Internationa...
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crwiley:10.4319/lo.2004.49.3.0637 2024-09-15T18:22:48+00:00 Interannual variability in abundance of North Sea jellyfish and links to the North Atlantic Oscillation Lynam, Christopher P. Hay, Stephen J. Brierley, Andrew S. 2004 http://dx.doi.org/10.4319/lo.2004.49.3.0637 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.2004.49.3.0637 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.2004.49.3.0637 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Limnology and Oceanography volume 49, issue 3, page 637-643 ISSN 0024-3590 1939-5590 journal-article 2004 crwiley https://doi.org/10.4319/lo.2004.49.3.0637 2024-08-09T04:23:54Z Pronounced interannual variability in the abundance of medusae of the jellyfish species Aurelia aurita , Cyanea lamarckii , and Cyanea capillata (Phylum Cnidaria, Class Scyphozoa) in the North Sea was evident in data arising from the International Council for the Exploration of the Seas International 0‐group Gadoid Surveys between 1971 and 1986. Possible climatic forcing of jellyfish abundance, via the North Atlantic Oscillation (NAO), was investigated with data on medusae from four areas of the North Sea (east of Scotland, north of Scotland, east of Shetland, and west of northern Denmark). There were significant inverse relationships between medusa abundance and the NAO Index (December‐March) in two regions: west of northern Denmark ( A. aurita r 2 = 0.70, P = 0.003, n = 10; C. lamarckii r 2 = 0.74, P = 0.002, n = 10) and east of Scotland ( A. aurita r 2 = 0.53, P = 0.008, n = 12). Fluctuations in the abundance of A. aurita and C. lamarckii medusae might be linked to hydroclimatic changes induced through atmospheric effects (as encapsulated in the NAO Index) on wind stress, temperature, and currents. These fundamental hydroclimatic changes alter the timing of spring phytoplankton blooms and zooplankton community composition. Predation by an abundance of medusae on zooplankton and ichthyoplankton could affect the North Sea ecosystem through top‐down and bottom‐up mechanisms. Because the NAO is presently in a high phase, climatic conditions could be serving to depress the abundance of medusae: a future reversal of the NAO might favor jellyfish and weaken the persistence or recovery of fisheries. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Wiley Online Library Limnology and Oceanography 49 3 637 643 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Pronounced interannual variability in the abundance of medusae of the jellyfish species Aurelia aurita , Cyanea lamarckii , and Cyanea capillata (Phylum Cnidaria, Class Scyphozoa) in the North Sea was evident in data arising from the International Council for the Exploration of the Seas International 0‐group Gadoid Surveys between 1971 and 1986. Possible climatic forcing of jellyfish abundance, via the North Atlantic Oscillation (NAO), was investigated with data on medusae from four areas of the North Sea (east of Scotland, north of Scotland, east of Shetland, and west of northern Denmark). There were significant inverse relationships between medusa abundance and the NAO Index (December‐March) in two regions: west of northern Denmark ( A. aurita r 2 = 0.70, P = 0.003, n = 10; C. lamarckii r 2 = 0.74, P = 0.002, n = 10) and east of Scotland ( A. aurita r 2 = 0.53, P = 0.008, n = 12). Fluctuations in the abundance of A. aurita and C. lamarckii medusae might be linked to hydroclimatic changes induced through atmospheric effects (as encapsulated in the NAO Index) on wind stress, temperature, and currents. These fundamental hydroclimatic changes alter the timing of spring phytoplankton blooms and zooplankton community composition. Predation by an abundance of medusae on zooplankton and ichthyoplankton could affect the North Sea ecosystem through top‐down and bottom‐up mechanisms. Because the NAO is presently in a high phase, climatic conditions could be serving to depress the abundance of medusae: a future reversal of the NAO might favor jellyfish and weaken the persistence or recovery of fisheries. |
format |
Article in Journal/Newspaper |
author |
Lynam, Christopher P. Hay, Stephen J. Brierley, Andrew S. |
spellingShingle |
Lynam, Christopher P. Hay, Stephen J. Brierley, Andrew S. Interannual variability in abundance of North Sea jellyfish and links to the North Atlantic Oscillation |
author_facet |
Lynam, Christopher P. Hay, Stephen J. Brierley, Andrew S. |
author_sort |
Lynam, Christopher P. |
title |
Interannual variability in abundance of North Sea jellyfish and links to the North Atlantic Oscillation |
title_short |
Interannual variability in abundance of North Sea jellyfish and links to the North Atlantic Oscillation |
title_full |
Interannual variability in abundance of North Sea jellyfish and links to the North Atlantic Oscillation |
title_fullStr |
Interannual variability in abundance of North Sea jellyfish and links to the North Atlantic Oscillation |
title_full_unstemmed |
Interannual variability in abundance of North Sea jellyfish and links to the North Atlantic Oscillation |
title_sort |
interannual variability in abundance of north sea jellyfish and links to the north atlantic oscillation |
publisher |
Wiley |
publishDate |
2004 |
url |
http://dx.doi.org/10.4319/lo.2004.49.3.0637 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.2004.49.3.0637 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.2004.49.3.0637 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
Limnology and Oceanography volume 49, issue 3, page 637-643 ISSN 0024-3590 1939-5590 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.4319/lo.2004.49.3.0637 |
container_title |
Limnology and Oceanography |
container_volume |
49 |
container_issue |
3 |
container_start_page |
637 |
op_container_end_page |
643 |
_version_ |
1810462816343162880 |