Marine Micro- and Macroalgae in the Polar Night
Microalgae have unique adaptions including low metabolic activity, utilization of lipid storage, and resting stage formation to survive the Polar Night. Some species are mixotrophic or heterotrophic and do survive periods that are not favorable for photosynthetic (autotrophic) growth, such as the Po...
Main Authors: | , , |
---|---|
Format: | Book Part |
Language: | English |
Published: |
Springer
2020
|
Subjects: | |
Online Access: | https://hdl.handle.net/10037/31256 |
id |
ftunivtroemsoe:oai:munin.uit.no:10037/31256 |
---|---|
record_format |
openpolar |
spelling |
ftunivtroemsoe:oai:munin.uit.no:10037/31256 2023-10-25T01:35:56+02:00 Marine Micro- and Macroalgae in the Polar Night Johnsen, Geir Leu, Eva Gradinger, Rolf 2020 https://hdl.handle.net/10037/31256 eng eng Springer Norges forskningsråd: 214271,226417,244319,245923,300333,223254 Johnsen G, Leu E, Gradinger R: Marine Micro- and Macroalgae in the Polar Night. In: Berge J, Johnsen G, Cohen JH. Polar night marine ecology - life and light in the dead of night, 2020. Springer p. 67-112 FRIDAID 1824830 978-3-030-33208-2 2468-5712 2468-5720 https://hdl.handle.net/10037/31256 openAccess Copyright 2020 The Author(s) Chapter Bokkapittel acceptedVersion 2020 ftunivtroemsoe 2023-09-27T23:07:37Z Microalgae have unique adaptions including low metabolic activity, utilization of lipid storage, and resting stage formation to survive the Polar Night. Some species are mixotrophic or heterotrophic and do survive periods that are not favorable for photosynthetic (autotrophic) growth, such as the Polar Night. In addi- tion, the autotrophic and mixotrophic species seem to maintain the key components of the photosynthetic apparatus intact during the dark period, which allows them to resume growth rapidly once light comes back in spring. In contrast, some macroal- gal species may act as “season anticipators” and utilize the winter darkness or early spring period as their major growth seasons. This chapter elucidates aspects of the ecology of micro- and macroalgae with a focus on the dark season. It is comprised of six parts and starts with an introduction (Sect. “Introduction”) about Arctic marine micro- and macroalgae. Section “The Key Abiotic Environmental Variables Related to Micro- and Macroalgae” reviews the key abiotic environmental variables related to micro- and macroalgal growth and survival. The seasonal development of the different groups of microalgae is described in Sect. “Microalgae”, comprising phytoplankton, microphytobenthos, and sea-ice algae. Section “Macroalgae” intro- duces the three classes of macroalgae (phaeo-, rhodo-, and chlorophytes) with infor- mation about biological variables, seasonal processes, and habitats. Section “Ecophysiology of Algae in the Polar Night” sheds light on the ecophysiology of microalgae and macroalgae in the Polar Night, using selected examples. The last Section “Conclusive Remarks” summarizes our current state of knowledge and provides some conclusions derived from it. Book Part Arctic ice algae Phytoplankton polar night Sea ice University of Tromsø: Munin Open Research Archive Arctic |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
description |
Microalgae have unique adaptions including low metabolic activity, utilization of lipid storage, and resting stage formation to survive the Polar Night. Some species are mixotrophic or heterotrophic and do survive periods that are not favorable for photosynthetic (autotrophic) growth, such as the Polar Night. In addi- tion, the autotrophic and mixotrophic species seem to maintain the key components of the photosynthetic apparatus intact during the dark period, which allows them to resume growth rapidly once light comes back in spring. In contrast, some macroal- gal species may act as “season anticipators” and utilize the winter darkness or early spring period as their major growth seasons. This chapter elucidates aspects of the ecology of micro- and macroalgae with a focus on the dark season. It is comprised of six parts and starts with an introduction (Sect. “Introduction”) about Arctic marine micro- and macroalgae. Section “The Key Abiotic Environmental Variables Related to Micro- and Macroalgae” reviews the key abiotic environmental variables related to micro- and macroalgal growth and survival. The seasonal development of the different groups of microalgae is described in Sect. “Microalgae”, comprising phytoplankton, microphytobenthos, and sea-ice algae. Section “Macroalgae” intro- duces the three classes of macroalgae (phaeo-, rhodo-, and chlorophytes) with infor- mation about biological variables, seasonal processes, and habitats. Section “Ecophysiology of Algae in the Polar Night” sheds light on the ecophysiology of microalgae and macroalgae in the Polar Night, using selected examples. The last Section “Conclusive Remarks” summarizes our current state of knowledge and provides some conclusions derived from it. |
format |
Book Part |
author |
Johnsen, Geir Leu, Eva Gradinger, Rolf |
spellingShingle |
Johnsen, Geir Leu, Eva Gradinger, Rolf Marine Micro- and Macroalgae in the Polar Night |
author_facet |
Johnsen, Geir Leu, Eva Gradinger, Rolf |
author_sort |
Johnsen, Geir |
title |
Marine Micro- and Macroalgae in the Polar Night |
title_short |
Marine Micro- and Macroalgae in the Polar Night |
title_full |
Marine Micro- and Macroalgae in the Polar Night |
title_fullStr |
Marine Micro- and Macroalgae in the Polar Night |
title_full_unstemmed |
Marine Micro- and Macroalgae in the Polar Night |
title_sort |
marine micro- and macroalgae in the polar night |
publisher |
Springer |
publishDate |
2020 |
url |
https://hdl.handle.net/10037/31256 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic ice algae Phytoplankton polar night Sea ice |
genre_facet |
Arctic ice algae Phytoplankton polar night Sea ice |
op_relation |
Norges forskningsråd: 214271,226417,244319,245923,300333,223254 Johnsen G, Leu E, Gradinger R: Marine Micro- and Macroalgae in the Polar Night. In: Berge J, Johnsen G, Cohen JH. Polar night marine ecology - life and light in the dead of night, 2020. Springer p. 67-112 FRIDAID 1824830 978-3-030-33208-2 2468-5712 2468-5720 https://hdl.handle.net/10037/31256 |
op_rights |
openAccess Copyright 2020 The Author(s) |
_version_ |
1780730947283451904 |