Phenological shuffling of major marine phytoplankton groups over the last six decades
Diversity and Distributions published by John Wiley & Sons Ltd Aim: Phytoplankton form the basis of the marine food web and are responsible for approximately 50% of the world's photosynthesis. Changes to their ecology are, therefore, important: here, we examined seasonal patterns in ocean p...
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ftdeakinunifig:oai:figshare.com:article/20713561 2023-05-15T17:36:38+02:00 Phenological shuffling of major marine phytoplankton groups over the last six decades W J Chivers M Edwards Graeme Hays 2020-05-01T00:00:00Z http://hdl.handle.net/10536/DRO/DU:30135563 https://figshare.com/articles/journal_contribution/Phenological_shuffling_of_major_marine_phytoplankton_groups_over_the_last_six_decades/20713561 unknown http://hdl.handle.net/10536/DRO/DU:30135563 https://figshare.com/articles/journal_contribution/Phenological_shuffling_of_major_marine_phytoplankton_groups_over_the_last_six_decades/20713561 All Rights Reserved Uncategorized Science & Technology Life Sciences & Biomedicine Biodiversity Conservation Ecology Biodiversity & Conservation Environmental Sciences & Ecology climate change marine plankton phytoplankton abundance phytoplankton phenology sea surface temperature spring temperature rise HARMFUL ALGAL BLOOMS CLIMATE-CHANGE NORTH-ATLANTIC LIFE-HISTORY PLANKTON DIATOMS SHIFTS RESPONSES DYNAMICS Text Journal contribution 2020 ftdeakinunifig 2022-11-17T19:13:45Z Diversity and Distributions published by John Wiley & Sons Ltd Aim: Phytoplankton form the basis of the marine food web and are responsible for approximately 50% of the world's photosynthesis. Changes to their ecology are, therefore, important: here, we examined seasonal patterns in ocean phytoplankton abundance for 45 taxa over 59 years collected from circa 410,000 km of line-transect sampling at temperate latitudes. Location: The North Sea. Methods: For our analysis we used plankton abundance data from the Continuous Plankton Recorder (CPR) survey, sea surface temperature measurements from the Hadley Centre, UK Meteorological Office and wind speed data from the International Comprehensive Ocean–Atmosphere Data Set, NOAA. Results: We found large differences in changes in the timing of peak abundance between the major phytoplankton groups. Late-summer blooming dinoflagellates (n = 10 taxa) tended to show a large seasonal advancement, the timing of peak abundance for dinoflagellates as group advancing 39 days over these six decades. By contrast diatoms (n = 35) did not show any change as a group in their timing of peak abundance over the time series. Granger causality testing suggested a major driver of these phenological changes has been ocean warming in general but more specifically the rate of spring temperature rise as the most important factor. We also found differences in the timing of peak abundance of harmful algal bloom taxa, with some showing peak abundance earlier while others have moved later. Main conclusions: There has been a fundamental transformation of the classic seasonal progression from blooms of diatoms to dinoflagellates, which lies at the heart of temperate marine food chains, as the classic bimodal diatom and dinoflagellate seasonal peaks are eroded to a more continuous, single, longer-lasting phytoplankton peak. This phenological shuffling within and between major taxonomic groups is likely to have profound implications for the transfer of energy to higher trophic levels. Other Non-Article Part of Journal/Newspaper North Atlantic DRO - Deakin Research Online |
institution |
Open Polar |
collection |
DRO - Deakin Research Online |
op_collection_id |
ftdeakinunifig |
language |
unknown |
topic |
Uncategorized Science & Technology Life Sciences & Biomedicine Biodiversity Conservation Ecology Biodiversity & Conservation Environmental Sciences & Ecology climate change marine plankton phytoplankton abundance phytoplankton phenology sea surface temperature spring temperature rise HARMFUL ALGAL BLOOMS CLIMATE-CHANGE NORTH-ATLANTIC LIFE-HISTORY PLANKTON DIATOMS SHIFTS RESPONSES DYNAMICS |
spellingShingle |
Uncategorized Science & Technology Life Sciences & Biomedicine Biodiversity Conservation Ecology Biodiversity & Conservation Environmental Sciences & Ecology climate change marine plankton phytoplankton abundance phytoplankton phenology sea surface temperature spring temperature rise HARMFUL ALGAL BLOOMS CLIMATE-CHANGE NORTH-ATLANTIC LIFE-HISTORY PLANKTON DIATOMS SHIFTS RESPONSES DYNAMICS W J Chivers M Edwards Graeme Hays Phenological shuffling of major marine phytoplankton groups over the last six decades |
topic_facet |
Uncategorized Science & Technology Life Sciences & Biomedicine Biodiversity Conservation Ecology Biodiversity & Conservation Environmental Sciences & Ecology climate change marine plankton phytoplankton abundance phytoplankton phenology sea surface temperature spring temperature rise HARMFUL ALGAL BLOOMS CLIMATE-CHANGE NORTH-ATLANTIC LIFE-HISTORY PLANKTON DIATOMS SHIFTS RESPONSES DYNAMICS |
description |
Diversity and Distributions published by John Wiley & Sons Ltd Aim: Phytoplankton form the basis of the marine food web and are responsible for approximately 50% of the world's photosynthesis. Changes to their ecology are, therefore, important: here, we examined seasonal patterns in ocean phytoplankton abundance for 45 taxa over 59 years collected from circa 410,000 km of line-transect sampling at temperate latitudes. Location: The North Sea. Methods: For our analysis we used plankton abundance data from the Continuous Plankton Recorder (CPR) survey, sea surface temperature measurements from the Hadley Centre, UK Meteorological Office and wind speed data from the International Comprehensive Ocean–Atmosphere Data Set, NOAA. Results: We found large differences in changes in the timing of peak abundance between the major phytoplankton groups. Late-summer blooming dinoflagellates (n = 10 taxa) tended to show a large seasonal advancement, the timing of peak abundance for dinoflagellates as group advancing 39 days over these six decades. By contrast diatoms (n = 35) did not show any change as a group in their timing of peak abundance over the time series. Granger causality testing suggested a major driver of these phenological changes has been ocean warming in general but more specifically the rate of spring temperature rise as the most important factor. We also found differences in the timing of peak abundance of harmful algal bloom taxa, with some showing peak abundance earlier while others have moved later. Main conclusions: There has been a fundamental transformation of the classic seasonal progression from blooms of diatoms to dinoflagellates, which lies at the heart of temperate marine food chains, as the classic bimodal diatom and dinoflagellate seasonal peaks are eroded to a more continuous, single, longer-lasting phytoplankton peak. This phenological shuffling within and between major taxonomic groups is likely to have profound implications for the transfer of energy to higher trophic levels. |
format |
Other Non-Article Part of Journal/Newspaper |
author |
W J Chivers M Edwards Graeme Hays |
author_facet |
W J Chivers M Edwards Graeme Hays |
author_sort |
W J Chivers |
title |
Phenological shuffling of major marine phytoplankton groups over the last six decades |
title_short |
Phenological shuffling of major marine phytoplankton groups over the last six decades |
title_full |
Phenological shuffling of major marine phytoplankton groups over the last six decades |
title_fullStr |
Phenological shuffling of major marine phytoplankton groups over the last six decades |
title_full_unstemmed |
Phenological shuffling of major marine phytoplankton groups over the last six decades |
title_sort |
phenological shuffling of major marine phytoplankton groups over the last six decades |
publishDate |
2020 |
url |
http://hdl.handle.net/10536/DRO/DU:30135563 https://figshare.com/articles/journal_contribution/Phenological_shuffling_of_major_marine_phytoplankton_groups_over_the_last_six_decades/20713561 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
http://hdl.handle.net/10536/DRO/DU:30135563 https://figshare.com/articles/journal_contribution/Phenological_shuffling_of_major_marine_phytoplankton_groups_over_the_last_six_decades/20713561 |
op_rights |
All Rights Reserved |
_version_ |
1766136175089680384 |