Benthic primary production and respiration of shallow rocky habitats: a case study from South Bay (Doumer Island, Western Antarctic Peninsula)
Rocky benthic communities are common in Antarctic coastal habitats; yet little is known about their carbon turnover rates. Here, we performed a broad survey of shallow ( < 65 m depth) rocky ice-scoured habitats of South Bay (Doumer Island, Western Antarctic Peninsula), combining (i) biodiversity...
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ftunivhelsihelda:oai:helda.helsinki.fi:10138/305779 2024-01-07T09:37:57+01:00 Benthic primary production and respiration of shallow rocky habitats: a case study from South Bay (Doumer Island, Western Antarctic Peninsula) Rovelli, Lorenzo Attard, Karl M. Cárdenas, César A. Glud, Ronnie N. Ecosystems and Environment Research Programme Tvärminne Benthic Ecology Team Marine Ecosystems Research Group Tvärminne Zoological Station 2019-10-02T08:21:02Z 16 application/pdf http://hdl.handle.net/10138/305779 eng eng Springer 10.1007/s00300-019-02533-0 Rovelli , L , Attard , K M , Cárdenas , C A & Glud , R N 2019 , ' Benthic primary production and respiration of shallow rocky habitats: a case study from South Bay (Doumer Island, Western Antarctic Peninsula) ' , Polar Biology , vol. 42 , no. 8 , pp. 1459-1474 . https://doi.org/10.1007/s00300-019-02533-0 RIS: urn:54B3EE55F044F1B8BD355C13C923D848 RIS: Rovelli2019 ORCID: /0000-0002-8009-5462/work/62633435 d8084d48-7f81-4875-b1f0-342fe48d1084 http://hdl.handle.net/10138/305779 000482050500004 cc_by openAccess info:eu-repo/semantics/openAccess ADELAIDE ISLAND Aquatic eddy covariance Base Yelcho COASTAL ENVIRONMENT Community oxygen exchange Doumer Island EDDY-CORRELATION MEASUREMENTS ICE SCOUR DISTURBANCE KING-GEORGE ISLAND ORKNEY ISLANDS PERMEABLE SEDIMENTS POTTER COVE SEASONAL RATES SIGNY ISLAND 1181 Ecology evolutionary biology 1172 Environmental sciences Article publishedVersion 2019 ftunivhelsihelda 2023-12-14T00:04:21Z Rocky benthic communities are common in Antarctic coastal habitats; yet little is known about their carbon turnover rates. Here, we performed a broad survey of shallow ( < 65 m depth) rocky ice-scoured habitats of South Bay (Doumer Island, Western Antarctic Peninsula), combining (i) biodiversity assessments from benthic imaging, and (ii) in situ benthic dissolved oxygen (O-2) exchange rates quantified by the aquatic eddy covariance technique. The 18 study sites revealed a gradual transition from macroalgae and coralline-dominated communities at ice-impacted depths (15-25 m; zone I) to large suspension feeders (e.g., sponges, bivalves) at depth zone II (25-40 m) and extensive suspension feeders at the deepest study location (zone III; 40-65 m). Gross primary production (GPP) in zone I was up to 70 mmol O-2 m(-2) d(-1) and dark ecosystem respiration (ER) ranged from 15 to 90 mmol m(-2) d(-1). Zone II exhibited reduced GPP (average 1.1 mmol m(-2) d(-1)) and ER rates from 6 to 36 mmol m(-2) d(-1), whereas aphotic zone III exhibited ER between 1 and 6 mmol m(-2) d(-1). Benthic ER exceeded GPP at all study sites, with daily net ecosystem metabolism (NEM) ranging from - 22 mmol m(-2) d(-1) at the shallow sites to - 4 mmol m(-2) d(-1) at 60 m. Similar NEM dynamics have been observed for hard-substrate Arctic habitats at comparable depths. Despite relatively high GPP during summer, coastal rocky habitats appear net heterotrophic. This is likely due to active drawdown of organic material by suspension-feeding communities that are key for biogeochemical and ecological functioning of high-latitude coastal ecosystems. Peer reviewed Article in Journal/Newspaper Adelaide Island Antarc* Antarctic Antarctic Peninsula Arctic Doumer Island King George Island Polar Biology Signy Island HELDA – University of Helsinki Open Repository Arctic Antarctic Antarctic Peninsula King George Island Potter Cove Signy Island ENVELOPE(-45.595,-45.595,-60.708,-60.708) Adelaide Island ENVELOPE(-68.914,-68.914,-67.762,-67.762) South Bay ENVELOPE(-63.579,-63.579,-64.870,-64.870) Yelcho ENVELOPE(-63.583,-63.583,-64.833,-64.833) Doumer ENVELOPE(-63.583,-63.583,-64.850,-64.850) Doumer Island ENVELOPE(-63.551,-63.551,-64.850,-64.850) Polar Biology 42 8 1459 1474 |
institution |
Open Polar |
collection |
HELDA – University of Helsinki Open Repository |
op_collection_id |
ftunivhelsihelda |
language |
English |
topic |
ADELAIDE ISLAND Aquatic eddy covariance Base Yelcho COASTAL ENVIRONMENT Community oxygen exchange Doumer Island EDDY-CORRELATION MEASUREMENTS ICE SCOUR DISTURBANCE KING-GEORGE ISLAND ORKNEY ISLANDS PERMEABLE SEDIMENTS POTTER COVE SEASONAL RATES SIGNY ISLAND 1181 Ecology evolutionary biology 1172 Environmental sciences |
spellingShingle |
ADELAIDE ISLAND Aquatic eddy covariance Base Yelcho COASTAL ENVIRONMENT Community oxygen exchange Doumer Island EDDY-CORRELATION MEASUREMENTS ICE SCOUR DISTURBANCE KING-GEORGE ISLAND ORKNEY ISLANDS PERMEABLE SEDIMENTS POTTER COVE SEASONAL RATES SIGNY ISLAND 1181 Ecology evolutionary biology 1172 Environmental sciences Rovelli, Lorenzo Attard, Karl M. Cárdenas, César A. Glud, Ronnie N. Benthic primary production and respiration of shallow rocky habitats: a case study from South Bay (Doumer Island, Western Antarctic Peninsula) |
topic_facet |
ADELAIDE ISLAND Aquatic eddy covariance Base Yelcho COASTAL ENVIRONMENT Community oxygen exchange Doumer Island EDDY-CORRELATION MEASUREMENTS ICE SCOUR DISTURBANCE KING-GEORGE ISLAND ORKNEY ISLANDS PERMEABLE SEDIMENTS POTTER COVE SEASONAL RATES SIGNY ISLAND 1181 Ecology evolutionary biology 1172 Environmental sciences |
description |
Rocky benthic communities are common in Antarctic coastal habitats; yet little is known about their carbon turnover rates. Here, we performed a broad survey of shallow ( < 65 m depth) rocky ice-scoured habitats of South Bay (Doumer Island, Western Antarctic Peninsula), combining (i) biodiversity assessments from benthic imaging, and (ii) in situ benthic dissolved oxygen (O-2) exchange rates quantified by the aquatic eddy covariance technique. The 18 study sites revealed a gradual transition from macroalgae and coralline-dominated communities at ice-impacted depths (15-25 m; zone I) to large suspension feeders (e.g., sponges, bivalves) at depth zone II (25-40 m) and extensive suspension feeders at the deepest study location (zone III; 40-65 m). Gross primary production (GPP) in zone I was up to 70 mmol O-2 m(-2) d(-1) and dark ecosystem respiration (ER) ranged from 15 to 90 mmol m(-2) d(-1). Zone II exhibited reduced GPP (average 1.1 mmol m(-2) d(-1)) and ER rates from 6 to 36 mmol m(-2) d(-1), whereas aphotic zone III exhibited ER between 1 and 6 mmol m(-2) d(-1). Benthic ER exceeded GPP at all study sites, with daily net ecosystem metabolism (NEM) ranging from - 22 mmol m(-2) d(-1) at the shallow sites to - 4 mmol m(-2) d(-1) at 60 m. Similar NEM dynamics have been observed for hard-substrate Arctic habitats at comparable depths. Despite relatively high GPP during summer, coastal rocky habitats appear net heterotrophic. This is likely due to active drawdown of organic material by suspension-feeding communities that are key for biogeochemical and ecological functioning of high-latitude coastal ecosystems. Peer reviewed |
author2 |
Ecosystems and Environment Research Programme Tvärminne Benthic Ecology Team Marine Ecosystems Research Group Tvärminne Zoological Station |
format |
Article in Journal/Newspaper |
author |
Rovelli, Lorenzo Attard, Karl M. Cárdenas, César A. Glud, Ronnie N. |
author_facet |
Rovelli, Lorenzo Attard, Karl M. Cárdenas, César A. Glud, Ronnie N. |
author_sort |
Rovelli, Lorenzo |
title |
Benthic primary production and respiration of shallow rocky habitats: a case study from South Bay (Doumer Island, Western Antarctic Peninsula) |
title_short |
Benthic primary production and respiration of shallow rocky habitats: a case study from South Bay (Doumer Island, Western Antarctic Peninsula) |
title_full |
Benthic primary production and respiration of shallow rocky habitats: a case study from South Bay (Doumer Island, Western Antarctic Peninsula) |
title_fullStr |
Benthic primary production and respiration of shallow rocky habitats: a case study from South Bay (Doumer Island, Western Antarctic Peninsula) |
title_full_unstemmed |
Benthic primary production and respiration of shallow rocky habitats: a case study from South Bay (Doumer Island, Western Antarctic Peninsula) |
title_sort |
benthic primary production and respiration of shallow rocky habitats: a case study from south bay (doumer island, western antarctic peninsula) |
publisher |
Springer |
publishDate |
2019 |
url |
http://hdl.handle.net/10138/305779 |
long_lat |
ENVELOPE(-45.595,-45.595,-60.708,-60.708) ENVELOPE(-68.914,-68.914,-67.762,-67.762) ENVELOPE(-63.579,-63.579,-64.870,-64.870) ENVELOPE(-63.583,-63.583,-64.833,-64.833) ENVELOPE(-63.583,-63.583,-64.850,-64.850) ENVELOPE(-63.551,-63.551,-64.850,-64.850) |
geographic |
Arctic Antarctic Antarctic Peninsula King George Island Potter Cove Signy Island Adelaide Island South Bay Yelcho Doumer Doumer Island |
geographic_facet |
Arctic Antarctic Antarctic Peninsula King George Island Potter Cove Signy Island Adelaide Island South Bay Yelcho Doumer Doumer Island |
genre |
Adelaide Island Antarc* Antarctic Antarctic Peninsula Arctic Doumer Island King George Island Polar Biology Signy Island |
genre_facet |
Adelaide Island Antarc* Antarctic Antarctic Peninsula Arctic Doumer Island King George Island Polar Biology Signy Island |
op_relation |
10.1007/s00300-019-02533-0 Rovelli , L , Attard , K M , Cárdenas , C A & Glud , R N 2019 , ' Benthic primary production and respiration of shallow rocky habitats: a case study from South Bay (Doumer Island, Western Antarctic Peninsula) ' , Polar Biology , vol. 42 , no. 8 , pp. 1459-1474 . https://doi.org/10.1007/s00300-019-02533-0 RIS: urn:54B3EE55F044F1B8BD355C13C923D848 RIS: Rovelli2019 ORCID: /0000-0002-8009-5462/work/62633435 d8084d48-7f81-4875-b1f0-342fe48d1084 http://hdl.handle.net/10138/305779 000482050500004 |
op_rights |
cc_by openAccess info:eu-repo/semantics/openAccess |
container_title |
Polar Biology |
container_volume |
42 |
container_issue |
8 |
container_start_page |
1459 |
op_container_end_page |
1474 |
_version_ |
1787423459575332864 |