New confirmed depth limit of Antarctic macroalgae: Palmaria decipiens found at 100 m depth in the Southern Ocean
Living specimens of the macroalga Palmaria decipiens were collected from 100 m depth, representing a new confirmed depth record, considerably exceeding the previous record of 42 m depth. Previous deeper collections (below conventional SCUBA depths) have relied on dredge/grab samples or drop camera s...
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Springer Nature
2022
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ftnerc:oai:nora.nerc.ac.uk:532295 2023-05-15T13:41:46+02:00 New confirmed depth limit of Antarctic macroalgae: Palmaria decipiens found at 100 m depth in the Southern Ocean Robinson, Ben Jamie Owen Morley, Simon A. Rizouli, Anastasia Sarantopoulou, Joanne Gkafas, George A. Exadactylos, Athanasios Küpper, Frithjof C. 2022-08-03 text http://nora.nerc.ac.uk/id/eprint/532295/ https://nora.nerc.ac.uk/id/eprint/532295/1/s00300-022-03071-y.pdf https://link.springer.com/article/10.1007/s00300-022-03071-y en eng Springer Nature https://nora.nerc.ac.uk/id/eprint/532295/1/s00300-022-03071-y.pdf Robinson, Ben Jamie Owen orcid:0000-0002-7450-686X Morley, Simon A. orcid:0000-0002-7761-660X Rizouli, Anastasia; Sarantopoulou, Joanne; Gkafas, George A.; Exadactylos, Athanasios; Küpper, Frithjof C. 2022 New confirmed depth limit of Antarctic macroalgae: Palmaria decipiens found at 100 m depth in the Southern Ocean. Polar Biology, 45. 1459-1463. https://doi.org/10.1007/s00300-022-03071-y <https://doi.org/10.1007/s00300-022-03071-y> cc_by_4 CC-BY Publication - Article PeerReviewed 2022 ftnerc https://doi.org/10.1007/s00300-022-03071-y 2023-02-04T19:53:07Z Living specimens of the macroalga Palmaria decipiens were collected from 100 m depth, representing a new confirmed depth record, considerably exceeding the previous record of 42 m depth. Previous deeper collections (below conventional SCUBA depths) have relied on dredge/grab samples or drop camera surveys. Remote techniques cannot conclusively prove that macroalgae are living at these depths, as algae detach from shallower substrata, e.g., through ice scouring, and drift to depths below their growth limit. This, combined with a low rate of decay of macroalgae around Antarctica, requires validation that algal samples from depth have grown in situ. Estimates of macroalgal biomass, energy fluxes, and the potential energy fixation may need adjusting to consider the deeper growing depths particularly with glacial retreat along the Antarctic Peninsula revealing areas of rocky substrata for macroalgal colonisation. The confirmed extension of depth where macroalgae can grow will have implications for assessments of benthic productivity and food webs in Antarctica. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Polar Biology Southern Ocean Natural Environment Research Council: NERC Open Research Archive Antarctic Southern Ocean The Antarctic Antarctic Peninsula Polar Biology 45 8 1459 1463 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
description |
Living specimens of the macroalga Palmaria decipiens were collected from 100 m depth, representing a new confirmed depth record, considerably exceeding the previous record of 42 m depth. Previous deeper collections (below conventional SCUBA depths) have relied on dredge/grab samples or drop camera surveys. Remote techniques cannot conclusively prove that macroalgae are living at these depths, as algae detach from shallower substrata, e.g., through ice scouring, and drift to depths below their growth limit. This, combined with a low rate of decay of macroalgae around Antarctica, requires validation that algal samples from depth have grown in situ. Estimates of macroalgal biomass, energy fluxes, and the potential energy fixation may need adjusting to consider the deeper growing depths particularly with glacial retreat along the Antarctic Peninsula revealing areas of rocky substrata for macroalgal colonisation. The confirmed extension of depth where macroalgae can grow will have implications for assessments of benthic productivity and food webs in Antarctica. |
format |
Article in Journal/Newspaper |
author |
Robinson, Ben Jamie Owen Morley, Simon A. Rizouli, Anastasia Sarantopoulou, Joanne Gkafas, George A. Exadactylos, Athanasios Küpper, Frithjof C. |
spellingShingle |
Robinson, Ben Jamie Owen Morley, Simon A. Rizouli, Anastasia Sarantopoulou, Joanne Gkafas, George A. Exadactylos, Athanasios Küpper, Frithjof C. New confirmed depth limit of Antarctic macroalgae: Palmaria decipiens found at 100 m depth in the Southern Ocean |
author_facet |
Robinson, Ben Jamie Owen Morley, Simon A. Rizouli, Anastasia Sarantopoulou, Joanne Gkafas, George A. Exadactylos, Athanasios Küpper, Frithjof C. |
author_sort |
Robinson, Ben Jamie Owen |
title |
New confirmed depth limit of Antarctic macroalgae: Palmaria decipiens found at 100 m depth in the Southern Ocean |
title_short |
New confirmed depth limit of Antarctic macroalgae: Palmaria decipiens found at 100 m depth in the Southern Ocean |
title_full |
New confirmed depth limit of Antarctic macroalgae: Palmaria decipiens found at 100 m depth in the Southern Ocean |
title_fullStr |
New confirmed depth limit of Antarctic macroalgae: Palmaria decipiens found at 100 m depth in the Southern Ocean |
title_full_unstemmed |
New confirmed depth limit of Antarctic macroalgae: Palmaria decipiens found at 100 m depth in the Southern Ocean |
title_sort |
new confirmed depth limit of antarctic macroalgae: palmaria decipiens found at 100 m depth in the southern ocean |
publisher |
Springer Nature |
publishDate |
2022 |
url |
http://nora.nerc.ac.uk/id/eprint/532295/ https://nora.nerc.ac.uk/id/eprint/532295/1/s00300-022-03071-y.pdf https://link.springer.com/article/10.1007/s00300-022-03071-y |
geographic |
Antarctic Southern Ocean The Antarctic Antarctic Peninsula |
geographic_facet |
Antarctic Southern Ocean The Antarctic Antarctic Peninsula |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Polar Biology Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Polar Biology Southern Ocean |
op_relation |
https://nora.nerc.ac.uk/id/eprint/532295/1/s00300-022-03071-y.pdf Robinson, Ben Jamie Owen orcid:0000-0002-7450-686X Morley, Simon A. orcid:0000-0002-7761-660X Rizouli, Anastasia; Sarantopoulou, Joanne; Gkafas, George A.; Exadactylos, Athanasios; Küpper, Frithjof C. 2022 New confirmed depth limit of Antarctic macroalgae: Palmaria decipiens found at 100 m depth in the Southern Ocean. Polar Biology, 45. 1459-1463. https://doi.org/10.1007/s00300-022-03071-y <https://doi.org/10.1007/s00300-022-03071-y> |
op_rights |
cc_by_4 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1007/s00300-022-03071-y |
container_title |
Polar Biology |
container_volume |
45 |
container_issue |
8 |
container_start_page |
1459 |
op_container_end_page |
1463 |
_version_ |
1766157824773062656 |