Polar coralline algal CaCO 3 -production rates correspond to intensity and duration of the solar radiation
In this study we present a comparative quantification of CaCO 3 production rates by rhodolith-forming coralline red algal communities situated in high polar latitudes and assess which environmental parameters control these production rates. The present rhodoliths act as ecosystem engineers, and thei...
Published in: | Biogeosciences |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2014
|
Subjects: | |
Online Access: | https://doi.org/10.5194/bg-11-833-2014 https://doaj.org/article/edb6fc76afd148eca4cac6d0137fcdf8 |
id |
ftdoajarticles:oai:doaj.org/article:edb6fc76afd148eca4cac6d0137fcdf8 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:edb6fc76afd148eca4cac6d0137fcdf8 2023-05-15T15:16:05+02:00 Polar coralline algal CaCO 3 -production rates correspond to intensity and duration of the solar radiation S. Teichert A. Freiwald 2014-02-01T00:00:00Z https://doi.org/10.5194/bg-11-833-2014 https://doaj.org/article/edb6fc76afd148eca4cac6d0137fcdf8 EN eng Copernicus Publications http://www.biogeosciences.net/11/833/2014/bg-11-833-2014.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 1726-4170 1726-4189 doi:10.5194/bg-11-833-2014 https://doaj.org/article/edb6fc76afd148eca4cac6d0137fcdf8 Biogeosciences, Vol 11, Iss 3, Pp 833-842 (2014) Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 article 2014 ftdoajarticles https://doi.org/10.5194/bg-11-833-2014 2022-12-31T03:56:06Z In this study we present a comparative quantification of CaCO 3 production rates by rhodolith-forming coralline red algal communities situated in high polar latitudes and assess which environmental parameters control these production rates. The present rhodoliths act as ecosystem engineers, and their carbonate skeletons provide an important ecological niche to a variety of benthic organisms. The settings are distributed along the coasts of the Svalbard archipelago, being Floskjeret (78°18' N) in Isfjorden, Krossfjorden (79°08' N) at the eastern coast of Haakon VII Land, Mosselbukta (79°53' N) at the eastern coast of Mosselhalvøya, and Nordkappbukta (80°31' N) at the northern coast of Nordaustlandet. All sites feature Arctic climate and strong seasonality. The algal CaCO 3 production rates were calculated from fuchsine-stained, presumably annual growth increments exhibited by the rhodoliths and range from 100.9 g (CaCO 3 ) m −2 yr −1 at Nordkappbukta to 200.3 g (CaCO 3 ) m −2 yr −1 at Floskjeret. The rates correlate to various environmental parameters with geographical latitude being the most significant (negative correlation, R 2 = 0.95, p = 0.0070), followed by the duration of the polar night (negative correlation, R 2 = 0.93, p = 0.0220), the duration of the sea ice cover (negative correlation, R 2 = 0.87, p = 0.0657), and the annual mean temperature (positive correlation, R 2 = 0.48, p = 0.0301). This points out sufficient light incidence to be the main control of the growth of the examined coralline red algal rhodolith communities, while temperature is less important. Thus, the ongoing global change with its rising temperatures will most likely result in impaired conditions for the algae, because the concomitant increased global runoff will decrease water transparency and hence light incidence at the four offshore sites. Regarding the aforementioned role of the rhodoliths as ecosystem engineers, the impact on the associated organisms will presumably also be negative. Article in Journal/Newspaper Arctic Haakon VII Land Isfjord* Isfjorden Krossfjord* Nordaustlandet polar night Sea ice Svalbard Directory of Open Access Journals: DOAJ Articles Arctic Floskjeret ENVELOPE(14.472,14.472,78.306,78.306) Haakon VII Land ENVELOPE(12.833,12.833,79.350,79.350) Krossfjorden ENVELOPE(11.742,11.742,79.141,79.141) Mosselbukta ENVELOPE(15.955,15.955,79.891,79.891) Mosselhalvøya ENVELOPE(16.340,16.340,79.947,79.947) Nordaustlandet ENVELOPE(22.400,22.400,79.800,79.800) Svalbard Svalbard Archipelago Biogeosciences 11 3 833 842 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
spellingShingle |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 S. Teichert A. Freiwald Polar coralline algal CaCO 3 -production rates correspond to intensity and duration of the solar radiation |
topic_facet |
Ecology QH540-549.5 Life QH501-531 Geology QE1-996.5 |
description |
In this study we present a comparative quantification of CaCO 3 production rates by rhodolith-forming coralline red algal communities situated in high polar latitudes and assess which environmental parameters control these production rates. The present rhodoliths act as ecosystem engineers, and their carbonate skeletons provide an important ecological niche to a variety of benthic organisms. The settings are distributed along the coasts of the Svalbard archipelago, being Floskjeret (78°18' N) in Isfjorden, Krossfjorden (79°08' N) at the eastern coast of Haakon VII Land, Mosselbukta (79°53' N) at the eastern coast of Mosselhalvøya, and Nordkappbukta (80°31' N) at the northern coast of Nordaustlandet. All sites feature Arctic climate and strong seasonality. The algal CaCO 3 production rates were calculated from fuchsine-stained, presumably annual growth increments exhibited by the rhodoliths and range from 100.9 g (CaCO 3 ) m −2 yr −1 at Nordkappbukta to 200.3 g (CaCO 3 ) m −2 yr −1 at Floskjeret. The rates correlate to various environmental parameters with geographical latitude being the most significant (negative correlation, R 2 = 0.95, p = 0.0070), followed by the duration of the polar night (negative correlation, R 2 = 0.93, p = 0.0220), the duration of the sea ice cover (negative correlation, R 2 = 0.87, p = 0.0657), and the annual mean temperature (positive correlation, R 2 = 0.48, p = 0.0301). This points out sufficient light incidence to be the main control of the growth of the examined coralline red algal rhodolith communities, while temperature is less important. Thus, the ongoing global change with its rising temperatures will most likely result in impaired conditions for the algae, because the concomitant increased global runoff will decrease water transparency and hence light incidence at the four offshore sites. Regarding the aforementioned role of the rhodoliths as ecosystem engineers, the impact on the associated organisms will presumably also be negative. |
format |
Article in Journal/Newspaper |
author |
S. Teichert A. Freiwald |
author_facet |
S. Teichert A. Freiwald |
author_sort |
S. Teichert |
title |
Polar coralline algal CaCO 3 -production rates correspond to intensity and duration of the solar radiation |
title_short |
Polar coralline algal CaCO 3 -production rates correspond to intensity and duration of the solar radiation |
title_full |
Polar coralline algal CaCO 3 -production rates correspond to intensity and duration of the solar radiation |
title_fullStr |
Polar coralline algal CaCO 3 -production rates correspond to intensity and duration of the solar radiation |
title_full_unstemmed |
Polar coralline algal CaCO 3 -production rates correspond to intensity and duration of the solar radiation |
title_sort |
polar coralline algal caco 3 -production rates correspond to intensity and duration of the solar radiation |
publisher |
Copernicus Publications |
publishDate |
2014 |
url |
https://doi.org/10.5194/bg-11-833-2014 https://doaj.org/article/edb6fc76afd148eca4cac6d0137fcdf8 |
long_lat |
ENVELOPE(14.472,14.472,78.306,78.306) ENVELOPE(12.833,12.833,79.350,79.350) ENVELOPE(11.742,11.742,79.141,79.141) ENVELOPE(15.955,15.955,79.891,79.891) ENVELOPE(16.340,16.340,79.947,79.947) ENVELOPE(22.400,22.400,79.800,79.800) |
geographic |
Arctic Floskjeret Haakon VII Land Krossfjorden Mosselbukta Mosselhalvøya Nordaustlandet Svalbard Svalbard Archipelago |
geographic_facet |
Arctic Floskjeret Haakon VII Land Krossfjorden Mosselbukta Mosselhalvøya Nordaustlandet Svalbard Svalbard Archipelago |
genre |
Arctic Haakon VII Land Isfjord* Isfjorden Krossfjord* Nordaustlandet polar night Sea ice Svalbard |
genre_facet |
Arctic Haakon VII Land Isfjord* Isfjorden Krossfjord* Nordaustlandet polar night Sea ice Svalbard |
op_source |
Biogeosciences, Vol 11, Iss 3, Pp 833-842 (2014) |
op_relation |
http://www.biogeosciences.net/11/833/2014/bg-11-833-2014.pdf https://doaj.org/toc/1726-4170 https://doaj.org/toc/1726-4189 1726-4170 1726-4189 doi:10.5194/bg-11-833-2014 https://doaj.org/article/edb6fc76afd148eca4cac6d0137fcdf8 |
op_doi |
https://doi.org/10.5194/bg-11-833-2014 |
container_title |
Biogeosciences |
container_volume |
11 |
container_issue |
3 |
container_start_page |
833 |
op_container_end_page |
842 |
_version_ |
1766346399512788992 |