On the phenology and seeding potential of sea-ice microalgal species
Sea ice is an important habitat for a wide variety of microalgal species. Depending on the species composition, sea ice can be a seeding source for pelagic phytoplankton blooms after ice melt in spring. Sea-ice algal communities were studied over 2 full winter seasons in 2014 and 2016 at Rothera Res...
Published in: | Elementa: Science of the Anthropocene |
---|---|
Main Authors: | , , , , , , |
Other Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
UNIV CALIFORNIA PRESS
2022
|
Subjects: | |
Online Access: | http://hdl.handle.net/10138/342208 |
id |
ftunivhelsihelda:oai:helda.helsinki.fi:10138/342208 |
---|---|
record_format |
openpolar |
institution |
Open Polar |
collection |
HELDA – University of Helsinki Open Repository |
op_collection_id |
ftunivhelsihelda |
language |
English |
topic |
Biogeochemistry Haptophytes Phenology Pigments Sea ice Seeding PHOTOSYNTHESIS-IRRADIANCE RELATIONSHIPS WEST ANTARCTIC PENINSULA WEDDELL SEA PACK ICE ALGAL ASSEMBLAGES MARGUERITE BAY SOUTHERN-OCEAN ROSS SEA PHYTOPLANKTON DYNAMICS 1181 Ecology evolutionary biology 1171 Geosciences 1172 Environmental sciences |
spellingShingle |
Biogeochemistry Haptophytes Phenology Pigments Sea ice Seeding PHOTOSYNTHESIS-IRRADIANCE RELATIONSHIPS WEST ANTARCTIC PENINSULA WEDDELL SEA PACK ICE ALGAL ASSEMBLAGES MARGUERITE BAY SOUTHERN-OCEAN ROSS SEA PHYTOPLANKTON DYNAMICS 1181 Ecology evolutionary biology 1171 Geosciences 1172 Environmental sciences van Leeuwe, Maria A. Fenton, Mairi Davey, Emily Rintala, Janne-Markus Jones, Elizabeth M. Meredith, Michael P. Stefels, Jacqueline On the phenology and seeding potential of sea-ice microalgal species |
topic_facet |
Biogeochemistry Haptophytes Phenology Pigments Sea ice Seeding PHOTOSYNTHESIS-IRRADIANCE RELATIONSHIPS WEST ANTARCTIC PENINSULA WEDDELL SEA PACK ICE ALGAL ASSEMBLAGES MARGUERITE BAY SOUTHERN-OCEAN ROSS SEA PHYTOPLANKTON DYNAMICS 1181 Ecology evolutionary biology 1171 Geosciences 1172 Environmental sciences |
description |
Sea ice is an important habitat for a wide variety of microalgal species. Depending on the species composition, sea ice can be a seeding source for pelagic phytoplankton blooms after ice melt in spring. Sea-ice algal communities were studied over 2 full winter seasons in 2014 and 2016 at Rothera Research Station, situated at the Western Antarctic Peninsula (WAP). Algal pigment patterns and microscopic observations were combined with photophysiological studies based on fluorescence analyses to monitor and explain the phenology of ice-algal species. Clear patterns in species succession were identified. Young sea ice contained a mixture of algal species including dinoflagellates, cryptophytes and diatoms like Chaetoceros spp. and Fragillariopsis spp. In winter, severe environmental conditions resulted in a decline in species diversity and selection towards heterotrophy. Pennate diatoms like Amphiprora kufferathii and Berkeleya adeliensis were the first to dominate the nutrient-enriched bottom-ice layers in early spring. The bottom communities exhibited a remarkably stable value for the photoadaptation parameter, E-k, of circa 25 mu mol photons m(-2) s(-1), Whereas pennate diatoms were most abundant in spring ice, the initial seeding event linked to ice melt was associated with flagellate species. Haptophyte species like Phaeocystis antarctica and prymnesiophytes like Pyramimonas spp. best sustained the transition from sea ice to seawater. Comparison with previous studies shows that the seeding patterns observed in Ryder Bay were characteristic over the wider sea-ice domain, Arctic and Antarctic. Over the course of this century, the WAP is predicted to experience continuing thinning and decline in sea-ice cover. For the near future, we expect that especially microalgal communities of haptophytes and chlorophytes will benefit from the changes, with yet unknown implications for carbon fluxes and higher trophic levels. Peer reviewed |
author2 |
Department of Forest Sciences Environmental Sciences |
format |
Article in Journal/Newspaper |
author |
van Leeuwe, Maria A. Fenton, Mairi Davey, Emily Rintala, Janne-Markus Jones, Elizabeth M. Meredith, Michael P. Stefels, Jacqueline |
author_facet |
van Leeuwe, Maria A. Fenton, Mairi Davey, Emily Rintala, Janne-Markus Jones, Elizabeth M. Meredith, Michael P. Stefels, Jacqueline |
author_sort |
van Leeuwe, Maria A. |
title |
On the phenology and seeding potential of sea-ice microalgal species |
title_short |
On the phenology and seeding potential of sea-ice microalgal species |
title_full |
On the phenology and seeding potential of sea-ice microalgal species |
title_fullStr |
On the phenology and seeding potential of sea-ice microalgal species |
title_full_unstemmed |
On the phenology and seeding potential of sea-ice microalgal species |
title_sort |
on the phenology and seeding potential of sea-ice microalgal species |
publisher |
UNIV CALIFORNIA PRESS |
publishDate |
2022 |
url |
http://hdl.handle.net/10138/342208 |
long_lat |
ENVELOPE(141.378,141.378,-66.787,-66.787) ENVELOPE(-68.000,-68.000,-68.500,-68.500) ENVELOPE(-68.130,-68.130,-67.568,-67.568) ENVELOPE(-68.129,-68.129,-67.566,-67.566) ENVELOPE(-68.333,-68.333,-67.566,-67.566) ENVELOPE(-68.333,-68.333,-67.567,-67.567) |
geographic |
Antarctic Antarctic Peninsula Arctic Marguerite Marguerite Bay Ross Sea Rothera Rothera Research Station Ryder Ryder Bay Southern Ocean Weddell Weddell Sea |
geographic_facet |
Antarctic Antarctic Peninsula Arctic Marguerite Marguerite Bay Ross Sea Rothera Rothera Research Station Ryder Ryder Bay Southern Ocean Weddell Weddell Sea |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Arctic Phytoplankton Ross Sea Sea ice Southern Ocean Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Arctic Phytoplankton Ross Sea Sea ice Southern Ocean Weddell Sea |
op_relation |
10.1525/elementa.2021.00029 Funding for this study (MvL, JS) was provided by the Netherlands Organisation for Scientific Research (NWO) under the Polar Program (NPP) Project Numbers 866.10.101 and 866.14.101. The participation of MM was funded by the UK Natural Environment Research Council under NCSS support for the Rothera Time Series. This work was part of postdoctoral research (EMJ) at the University of Groningen (partly) funded by the NPP project 866.13.006. van Leeuwe , M A , Fenton , M , Davey , E , Rintala , J-M , Jones , E M , Meredith , M P & Stefels , J 2022 , ' On the phenology and seeding potential of sea-ice microalgal species ' , Elementa: Science of the Anthropocene , vol. 10 , no. 1 , 1 . https://doi.org/10.1525/elementa.2021.00029 85127056666 68c23a3f-309c-4f07-bb95-436529cf5e2f http://hdl.handle.net/10138/342208 000769431100001 |
op_rights |
cc_by openAccess info:eu-repo/semantics/openAccess |
container_title |
Elementa: Science of the Anthropocene |
container_volume |
10 |
container_issue |
1 |
_version_ |
1787430293330722816 |
spelling |
ftunivhelsihelda:oai:helda.helsinki.fi:10138/342208 2024-01-07T09:39:58+01:00 On the phenology and seeding potential of sea-ice microalgal species van Leeuwe, Maria A. Fenton, Mairi Davey, Emily Rintala, Janne-Markus Jones, Elizabeth M. Meredith, Michael P. Stefels, Jacqueline Department of Forest Sciences Environmental Sciences 2022-03-31T07:18:03Z 19 application/pdf http://hdl.handle.net/10138/342208 eng eng UNIV CALIFORNIA PRESS 10.1525/elementa.2021.00029 Funding for this study (MvL, JS) was provided by the Netherlands Organisation for Scientific Research (NWO) under the Polar Program (NPP) Project Numbers 866.10.101 and 866.14.101. The participation of MM was funded by the UK Natural Environment Research Council under NCSS support for the Rothera Time Series. This work was part of postdoctoral research (EMJ) at the University of Groningen (partly) funded by the NPP project 866.13.006. van Leeuwe , M A , Fenton , M , Davey , E , Rintala , J-M , Jones , E M , Meredith , M P & Stefels , J 2022 , ' On the phenology and seeding potential of sea-ice microalgal species ' , Elementa: Science of the Anthropocene , vol. 10 , no. 1 , 1 . https://doi.org/10.1525/elementa.2021.00029 85127056666 68c23a3f-309c-4f07-bb95-436529cf5e2f http://hdl.handle.net/10138/342208 000769431100001 cc_by openAccess info:eu-repo/semantics/openAccess Biogeochemistry Haptophytes Phenology Pigments Sea ice Seeding PHOTOSYNTHESIS-IRRADIANCE RELATIONSHIPS WEST ANTARCTIC PENINSULA WEDDELL SEA PACK ICE ALGAL ASSEMBLAGES MARGUERITE BAY SOUTHERN-OCEAN ROSS SEA PHYTOPLANKTON DYNAMICS 1181 Ecology evolutionary biology 1171 Geosciences 1172 Environmental sciences Article publishedVersion 2022 ftunivhelsihelda 2023-12-14T00:05:43Z Sea ice is an important habitat for a wide variety of microalgal species. Depending on the species composition, sea ice can be a seeding source for pelagic phytoplankton blooms after ice melt in spring. Sea-ice algal communities were studied over 2 full winter seasons in 2014 and 2016 at Rothera Research Station, situated at the Western Antarctic Peninsula (WAP). Algal pigment patterns and microscopic observations were combined with photophysiological studies based on fluorescence analyses to monitor and explain the phenology of ice-algal species. Clear patterns in species succession were identified. Young sea ice contained a mixture of algal species including dinoflagellates, cryptophytes and diatoms like Chaetoceros spp. and Fragillariopsis spp. In winter, severe environmental conditions resulted in a decline in species diversity and selection towards heterotrophy. Pennate diatoms like Amphiprora kufferathii and Berkeleya adeliensis were the first to dominate the nutrient-enriched bottom-ice layers in early spring. The bottom communities exhibited a remarkably stable value for the photoadaptation parameter, E-k, of circa 25 mu mol photons m(-2) s(-1), Whereas pennate diatoms were most abundant in spring ice, the initial seeding event linked to ice melt was associated with flagellate species. Haptophyte species like Phaeocystis antarctica and prymnesiophytes like Pyramimonas spp. best sustained the transition from sea ice to seawater. Comparison with previous studies shows that the seeding patterns observed in Ryder Bay were characteristic over the wider sea-ice domain, Arctic and Antarctic. Over the course of this century, the WAP is predicted to experience continuing thinning and decline in sea-ice cover. For the near future, we expect that especially microalgal communities of haptophytes and chlorophytes will benefit from the changes, with yet unknown implications for carbon fluxes and higher trophic levels. Peer reviewed Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Arctic Phytoplankton Ross Sea Sea ice Southern Ocean Weddell Sea HELDA – University of Helsinki Open Repository Antarctic Antarctic Peninsula Arctic Marguerite ENVELOPE(141.378,141.378,-66.787,-66.787) Marguerite Bay ENVELOPE(-68.000,-68.000,-68.500,-68.500) Ross Sea Rothera ENVELOPE(-68.130,-68.130,-67.568,-67.568) Rothera Research Station ENVELOPE(-68.129,-68.129,-67.566,-67.566) Ryder ENVELOPE(-68.333,-68.333,-67.566,-67.566) Ryder Bay ENVELOPE(-68.333,-68.333,-67.567,-67.567) Southern Ocean Weddell Weddell Sea Elementa: Science of the Anthropocene 10 1 |