Contrasting pelagic plankton in temperate Irish lakes: the relative contribution of heterotrophic, mixotrophic, and autotrophic components, and the effects of extreme rainfall events
The mobilisation of energy from allocthonous carbon by heterotrophic bacterioplankton can be proportionally more important than autotrophic production in humic lakes. Moreover, increasing levels of dissolved organic carbon (DOC) in many aquatic systems linked to increases in precipitation, which in...
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Format: | Other/Unknown Material |
Language: | English |
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Freshwater Biological Association
2015
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Online Access: | https://www.fba.org.uk/journals/index.php/IW/article/view/828 |
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ftfbaojs:oai:ojs.pkp.sfu.ca:article/828 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
FBA Journal System (Freshwater Biological Association) |
op_collection_id |
ftfbaojs |
language |
English |
topic |
autotrophic clearwater lakes extreme precipitation heterotrophic humic lakes mixotrophic pelagic plankton |
spellingShingle |
autotrophic clearwater lakes extreme precipitation heterotrophic humic lakes mixotrophic pelagic plankton Karin Sparber Catherine Dalton Elvira de Eyto Eleanor Jennings David Lenihan Filippo Cassina Contrasting pelagic plankton in temperate Irish lakes: the relative contribution of heterotrophic, mixotrophic, and autotrophic components, and the effects of extreme rainfall events |
topic_facet |
autotrophic clearwater lakes extreme precipitation heterotrophic humic lakes mixotrophic pelagic plankton |
description |
The mobilisation of energy from allocthonous carbon by heterotrophic bacterioplankton can be proportionally more important than autotrophic production in humic lakes. Moreover, increasing levels of dissolved organic carbon (DOC) in many aquatic systems linked to increases in precipitation, which in turn may be related to changing climate, mean that this heterotrophic component of the food web may play an increasing role in the overall transfer and production of energy, particularly within peatland catchments. While such catchments are common in the temperate northwest Atlantic regions of Europe, studies describing the seasonal dynamics of the heterotrophic, mixotrophic, and autotrophic components of their aquatic food webs are rare. In this study, the biomass of these pelagic components was enumerated over 1 year in 2 oligotrophic lakes, both situated in peatland catchments in the west of Ireland but with contrasting DOC concentrations. Bacterial biomass dominated the pelagic food web of the more humic lake, Lough Feeagh, while autotrophic phytoplankton biomass was greatest in the clearwater lake, Lough Guitane. The biomass of potentially mixotrophic flagellates was also slightly larger in the Lough Guitane, while phagotrophic ciliate biomass was comparable between the 2 lakes. An extreme precipitation event led to a significant increase in bacterial biomass while simultaneously depressing autotrophic production for several months in the humic lake. Extreme precipitation in the clearwater lake also depressed autotrophic production but did not give rise to significant increases in bacterial biomass. This quantification of autotrophic, mixotrophic, and heterotrophic components provides a vital first step in understanding how pelagic communities contribute to net ecosystem productivity, and thus how Irish peatland lakes may be affected by projected climate changes. |
author2 |
Environmental Protection Agency of Ireland (scholarship #2008-PhD-W-2). Marine Institute. Kerry Co. Council. |
format |
Other/Unknown Material |
author |
Karin Sparber Catherine Dalton Elvira de Eyto Eleanor Jennings David Lenihan Filippo Cassina |
author_facet |
Karin Sparber Catherine Dalton Elvira de Eyto Eleanor Jennings David Lenihan Filippo Cassina |
author_sort |
Karin Sparber |
title |
Contrasting pelagic plankton in temperate Irish lakes: the relative contribution of heterotrophic, mixotrophic, and autotrophic components, and the effects of extreme rainfall events |
title_short |
Contrasting pelagic plankton in temperate Irish lakes: the relative contribution of heterotrophic, mixotrophic, and autotrophic components, and the effects of extreme rainfall events |
title_full |
Contrasting pelagic plankton in temperate Irish lakes: the relative contribution of heterotrophic, mixotrophic, and autotrophic components, and the effects of extreme rainfall events |
title_fullStr |
Contrasting pelagic plankton in temperate Irish lakes: the relative contribution of heterotrophic, mixotrophic, and autotrophic components, and the effects of extreme rainfall events |
title_full_unstemmed |
Contrasting pelagic plankton in temperate Irish lakes: the relative contribution of heterotrophic, mixotrophic, and autotrophic components, and the effects of extreme rainfall events |
title_sort |
contrasting pelagic plankton in temperate irish lakes: the relative contribution of heterotrophic, mixotrophic, and autotrophic components, and the effects of extreme rainfall events |
publisher |
Freshwater Biological Association |
publishDate |
2015 |
url |
https://www.fba.org.uk/journals/index.php/IW/article/view/828 |
op_coverage |
northwest Atlantic region |
long_lat |
ENVELOPE(-36.500,-36.500,-54.250,-54.250) ENVELOPE(-128.553,-128.553,54.300,54.300) |
geographic |
Humic Lake Clearwater Lakes |
geographic_facet |
Humic Lake Clearwater Lakes |
genre |
Northwest Atlantic |
genre_facet |
Northwest Atlantic |
op_source |
Inland Waters; Vol 5, No 3 (2015); 295-310 |
op_relation |
https://www.fba.org.uk/journals/index.php/IW/article/download/828/4908 https://www.fba.org.uk/journals/index.php/IW/article/download/828/4909 https://www.fba.org.uk/journals/index.php/IW/article/download/828/4910 https://www.fba.org.uk/journals/index.php/IW/article/download/828/4911 https://www.fba.org.uk/journals/index.php/IW/article/download/828/4912 https://www.fba.org.uk/journals/index.php/IW/article/download/828/4913 https://www.fba.org.uk/journals/index.php/IW/article/download/828/4914 |
op_rights |
The submitting author (or their employer, if the author is not entitled to do so) will be required to check a box indicating that they have read, understood and accept the terms of this Copyright Notice. Author's declaration This article is submitted for publication in Inland Waters by me. I, the author (or his/her employer) confirm that: this article has not been published previously and it is not being considered for publication elsewhere, either in whole or substantial part; all persons entitled to authorship have been so included; all authors have read the submitted manuscript and approve its submission; the work conforms to the legal requirements of the country in which it was carried out, including those relating to conservation and welfare. Copyright to the above work (including all original text, photographs, images, tables and graphs*) is hereby transferred to the International Society of Limnology (SIL). I confirm that I have suitable rights to all content* and am legally permitted to transfer ownership to SIL. I accept responsibility for transferring copyright on behalf of any co-authors. * Excepting content for which I do not own the copyright but have obtained the necessary permission to reproduce. (Note: evidence of such permissions must be uploaded during step four of the submission process (Supplementary Files)). Rights of authors, publication, and permissions to reproduce The author retains the right to: display the submitted version of the manuscript (as first submitted to Inland Waters, prior to peer review), and/or the abstract only of the published article, on their personal/academic website(s); use (and permit others to use) the submitted version within their own organisation for non-commercial uses, e.g. for teaching purposes provided it is clearly stated that the manuscript is unpublished, and full bibliographic reference to the published article is given. Recommended text: Unpublished manuscript [if applicable]. The full text of this article |
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1766148682593337344 |
spelling |
ftfbaojs:oai:ojs.pkp.sfu.ca:article/828 2023-05-15T17:45:34+02:00 Contrasting pelagic plankton in temperate Irish lakes: the relative contribution of heterotrophic, mixotrophic, and autotrophic components, and the effects of extreme rainfall events Karin Sparber Catherine Dalton Elvira de Eyto Eleanor Jennings David Lenihan Filippo Cassina Environmental Protection Agency of Ireland (scholarship #2008-PhD-W-2). Marine Institute. Kerry Co. Council. northwest Atlantic region 2015-05-13 application/pdf https://www.fba.org.uk/journals/index.php/IW/article/view/828 en eng Freshwater Biological Association https://www.fba.org.uk/journals/index.php/IW/article/download/828/4908 https://www.fba.org.uk/journals/index.php/IW/article/download/828/4909 https://www.fba.org.uk/journals/index.php/IW/article/download/828/4910 https://www.fba.org.uk/journals/index.php/IW/article/download/828/4911 https://www.fba.org.uk/journals/index.php/IW/article/download/828/4912 https://www.fba.org.uk/journals/index.php/IW/article/download/828/4913 https://www.fba.org.uk/journals/index.php/IW/article/download/828/4914 The submitting author (or their employer, if the author is not entitled to do so) will be required to check a box indicating that they have read, understood and accept the terms of this Copyright Notice. Author's declaration This article is submitted for publication in Inland Waters by me. I, the author (or his/her employer) confirm that: this article has not been published previously and it is not being considered for publication elsewhere, either in whole or substantial part; all persons entitled to authorship have been so included; all authors have read the submitted manuscript and approve its submission; the work conforms to the legal requirements of the country in which it was carried out, including those relating to conservation and welfare. Copyright to the above work (including all original text, photographs, images, tables and graphs*) is hereby transferred to the International Society of Limnology (SIL). I confirm that I have suitable rights to all content* and am legally permitted to transfer ownership to SIL. I accept responsibility for transferring copyright on behalf of any co-authors. * Excepting content for which I do not own the copyright but have obtained the necessary permission to reproduce. (Note: evidence of such permissions must be uploaded during step four of the submission process (Supplementary Files)). Rights of authors, publication, and permissions to reproduce The author retains the right to: display the submitted version of the manuscript (as first submitted to Inland Waters, prior to peer review), and/or the abstract only of the published article, on their personal/academic website(s); use (and permit others to use) the submitted version within their own organisation for non-commercial uses, e.g. for teaching purposes provided it is clearly stated that the manuscript is unpublished, and full bibliographic reference to the published article is given. Recommended text: Unpublished manuscript [if applicable]. The full text of this article Inland Waters; Vol 5, No 3 (2015); 295-310 autotrophic clearwater lakes extreme precipitation heterotrophic humic lakes mixotrophic pelagic plankton Field study 2015 ftfbaojs 2019-09-01T07:51:02Z The mobilisation of energy from allocthonous carbon by heterotrophic bacterioplankton can be proportionally more important than autotrophic production in humic lakes. Moreover, increasing levels of dissolved organic carbon (DOC) in many aquatic systems linked to increases in precipitation, which in turn may be related to changing climate, mean that this heterotrophic component of the food web may play an increasing role in the overall transfer and production of energy, particularly within peatland catchments. While such catchments are common in the temperate northwest Atlantic regions of Europe, studies describing the seasonal dynamics of the heterotrophic, mixotrophic, and autotrophic components of their aquatic food webs are rare. In this study, the biomass of these pelagic components was enumerated over 1 year in 2 oligotrophic lakes, both situated in peatland catchments in the west of Ireland but with contrasting DOC concentrations. Bacterial biomass dominated the pelagic food web of the more humic lake, Lough Feeagh, while autotrophic phytoplankton biomass was greatest in the clearwater lake, Lough Guitane. The biomass of potentially mixotrophic flagellates was also slightly larger in the Lough Guitane, while phagotrophic ciliate biomass was comparable between the 2 lakes. An extreme precipitation event led to a significant increase in bacterial biomass while simultaneously depressing autotrophic production for several months in the humic lake. Extreme precipitation in the clearwater lake also depressed autotrophic production but did not give rise to significant increases in bacterial biomass. This quantification of autotrophic, mixotrophic, and heterotrophic components provides a vital first step in understanding how pelagic communities contribute to net ecosystem productivity, and thus how Irish peatland lakes may be affected by projected climate changes. Other/Unknown Material Northwest Atlantic FBA Journal System (Freshwater Biological Association) Humic Lake ENVELOPE(-36.500,-36.500,-54.250,-54.250) Clearwater Lakes ENVELOPE(-128.553,-128.553,54.300,54.300) |