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The effects of climate change on harmful algal blooms and plankton communities in the NE Atlantic. / Stephanie Louise Hinder
Swansea University Author: Stephanie Louise Hinder
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Abstract
Climate change has a profound impact on the phenology and abundance o f plankton in the NE Atlantic and North Sea. There is concern that harmful algal bloom (HAB) species may increase, accompanied by negative socio-economic impacts, including threats to human health and marine harvesting. We reviewe...
Published: |
2012
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Institution: | Swansea University |
Degree level: | Doctoral |
Degree name: | Ph.D |
URI: | https://cronfa.swan.ac.uk/Record/cronfa42990 |
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2018-08-29T14:40:46.6691629 v2 42990 2018-08-02 The effects of climate change on harmful algal blooms and plankton communities in the NE Atlantic. 9cab06800a180e4cf08ef9638ac126a5 NULL Stephanie Louise Hinder Stephanie Louise Hinder true true 2018-08-02 Climate change has a profound impact on the phenology and abundance o f plankton in the NE Atlantic and North Sea. There is concern that harmful algal bloom (HAB) species may increase, accompanied by negative socio-economic impacts, including threats to human health and marine harvesting. We reviewed historical major UK outbreaks o f poisoning and attempted to examine the epidemiology on a finer scale by linkage o f hospital admissions, GP and pathology records. As expected the incidence o f shellfish poisonings was very low but accurate identification o f poisoning was generally unreliable. The current UK shellfish monitoring programme is the key indicator for monitoring trends in the risk o f human exposure.Using the Continuous Plankton Recorder (CPR) survey, we mapped spatial and temporal trends o f various phytoplankton, including HAB species, and zooplankton (Tintinnids and Calanus). We found fundamental shifts in the relative abundance of diatoms versus dinoflagellates, with a dramatic dinoflagellate decline in recent years. Northward shifts in abundance were found for some Tintinnid and Calanus taxa. Using criteria o f statistical causality, these changes were linked to climate, in particular sea surface temperature and increasingly windy conditions in the summer, with a notable non-linear interaction between these factors. Focusing on Calanus, we showed the strength o f statistical links between abundance and climate variables can wax and wane as the time series lengthens. We found tentative evidence for adaptation o f Calanus to climate change, but not at a level that could reverse overall long-term patterns.Links with climate are often argued to be proxies for unobserved mechanisms that determine species abundance, such as stratification. We developed a new stratification index, covering the whole NE Atlantic from 1970 to 2009. We propose that this has wide applicability in marine climate change studies. Throughout, our work demonstrates the importance o f consistent long-term ecological survey data. E-Thesis Atlantic Ocean, North Sea, climate change, plankton, algal bloom, socio-economic impact, ecological survey 31 12 2012 2012-12-31 COLLEGE NANME Swansea University Medical School COLLEGE CODE Swansea University Doctoral Ph.D 2018-08-29T14:40:46.6691629 2018-08-02T16:24:30.9914044 Faculty of Medicine, Health and Life Sciences Swansea University Medical School - Medicine Stephanie Louise Hinder NULL 1 0042990-02082018162537.pdf 10821380.pdf 2018-08-02T16:25:37.9470000 Output 9133987 application/pdf E-Thesis true 2018-08-02T16:25:37.9470000 false |
title |
The effects of climate change on harmful algal blooms and plankton communities in the NE Atlantic. |
spellingShingle |
The effects of climate change on harmful algal blooms and plankton communities in the NE Atlantic. Stephanie Louise Hinder |
title_short |
The effects of climate change on harmful algal blooms and plankton communities in the NE Atlantic. |
title_full |
The effects of climate change on harmful algal blooms and plankton communities in the NE Atlantic. |
title_fullStr |
The effects of climate change on harmful algal blooms and plankton communities in the NE Atlantic. |
title_full_unstemmed |
The effects of climate change on harmful algal blooms and plankton communities in the NE Atlantic. |
title_sort |
The effects of climate change on harmful algal blooms and plankton communities in the NE Atlantic. |
author_id_str_mv |
9cab06800a180e4cf08ef9638ac126a5 |
author_id_fullname_str_mv |
9cab06800a180e4cf08ef9638ac126a5_***_Stephanie Louise Hinder |
author |
Stephanie Louise Hinder |
author2 |
Stephanie Louise Hinder |
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E-Thesis |
publishDate |
2012 |
institution |
Swansea University |
college_str |
Faculty of Medicine, Health and Life Sciences |
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facultyofmedicinehealthandlifesciences |
hierarchy_top_title |
Faculty of Medicine, Health and Life Sciences |
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facultyofmedicinehealthandlifesciences |
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Faculty of Medicine, Health and Life Sciences |
department_str |
Swansea University Medical School - Medicine{{{_:::_}}}Faculty of Medicine, Health and Life Sciences{{{_:::_}}}Swansea University Medical School - Medicine |
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active_str |
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description |
Climate change has a profound impact on the phenology and abundance o f plankton in the NE Atlantic and North Sea. There is concern that harmful algal bloom (HAB) species may increase, accompanied by negative socio-economic impacts, including threats to human health and marine harvesting. We reviewed historical major UK outbreaks o f poisoning and attempted to examine the epidemiology on a finer scale by linkage o f hospital admissions, GP and pathology records. As expected the incidence o f shellfish poisonings was very low but accurate identification o f poisoning was generally unreliable. The current UK shellfish monitoring programme is the key indicator for monitoring trends in the risk o f human exposure.Using the Continuous Plankton Recorder (CPR) survey, we mapped spatial and temporal trends o f various phytoplankton, including HAB species, and zooplankton (Tintinnids and Calanus). We found fundamental shifts in the relative abundance of diatoms versus dinoflagellates, with a dramatic dinoflagellate decline in recent years. Northward shifts in abundance were found for some Tintinnid and Calanus taxa. Using criteria o f statistical causality, these changes were linked to climate, in particular sea surface temperature and increasingly windy conditions in the summer, with a notable non-linear interaction between these factors. Focusing on Calanus, we showed the strength o f statistical links between abundance and climate variables can wax and wane as the time series lengthens. We found tentative evidence for adaptation o f Calanus to climate change, but not at a level that could reverse overall long-term patterns.Links with climate are often argued to be proxies for unobserved mechanisms that determine species abundance, such as stratification. We developed a new stratification index, covering the whole NE Atlantic from 1970 to 2009. We propose that this has wide applicability in marine climate change studies. Throughout, our work demonstrates the importance o f consistent long-term ecological survey data. |
published_date |
2012-12-31T03:54:02Z |
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1763752692052656128 |
score |
11.017731 |