Clearance of picoplankton-sized partides and formation of rapidly sinking aggregates by the pteropod, Limacina reiroversa
Findings from experiments showed that the web-feeding euthecosomatous pteropod, Limacina retroversa , can produce rapidly sinking, mucous aggregates. It is suggested that, by adhesion, these aggregates scavenged picoplankton-sized particles, which were thus effectively cleared from the medium. In co...
Published in: | Journal of Plankton Research |
---|---|
Main Authors: | , , , , , , , , , |
Format: | Text |
Language: | English |
Published: |
Oxford University Press
1997
|
Subjects: | |
Online Access: | http://plankt.oxfordjournals.org/cgi/content/short/19/7/863 https://doi.org/10.1093/plankt/19.7.863 |
id |
fthighwire:oai:open-archive.highwire.org:plankt:19/7/863 |
---|---|
record_format |
openpolar |
spelling |
fthighwire:oai:open-archive.highwire.org:plankt:19/7/863 2023-05-15T15:47:59+02:00 Clearance of picoplankton-sized partides and formation of rapidly sinking aggregates by the pteropod, Limacina reiroversa Noji, Thomas T. Bathmann, Ulrich V. Bodungen, Bodo von Voss, Maren Antia, Avan Krumbholz, Manta Klein, Bert Peeken, Ilka Noji, Carola I.-M. Rey, Francisco 1997-07-01 00:00:00.0 text/html http://plankt.oxfordjournals.org/cgi/content/short/19/7/863 https://doi.org/10.1093/plankt/19.7.863 en eng Oxford University Press http://plankt.oxfordjournals.org/cgi/content/short/19/7/863 http://dx.doi.org/10.1093/plankt/19.7.863 Copyright (C) 1997, Oxford University Press ORIGINAL ARTICLES TEXT 1997 fthighwire https://doi.org/10.1093/plankt/19.7.863 2007-06-24T12:56:48Z Findings from experiments showed that the web-feeding euthecosomatous pteropod, Limacina retroversa , can produce rapidly sinking, mucous aggregates. It is suggested that, by adhesion, these aggregates scavenged picoplankton-sized particles, which were thus effectively cleared from the medium. In contrast, Calanus finmarchicus was not able to clear these particles in our experiments. Sedimentation velocities of 10 aggregates measured in vivo were up to 1000 m day−1, with an average of {small tilde}300 m day−1 (not including two aggegates with neutral buoyancy). Mean velocities measured for feces of C.finmarchicus , Calanus hyperboreus and Thyssnoessa sp. were consider ably lower. We suggest that the sedimentation of L retroversa aggregates was the source of mucous flocs collected in sediment traps (Bathmann et al., Deep-Sea Res., 38,1341–1360,1991) and at the sea floor at 1200 m depth in the southern Norwegian Sea. This process may be an important mediator of sedimentation to the deep sea, when these pteropods are present in surface waters in large abundance. Text Calanus finmarchicus Calanus hyperboreus Norwegian Sea HighWire Press (Stanford University) Norwegian Sea Journal of Plankton Research 19 7 863 875 |
institution |
Open Polar |
collection |
HighWire Press (Stanford University) |
op_collection_id |
fthighwire |
language |
English |
topic |
ORIGINAL ARTICLES |
spellingShingle |
ORIGINAL ARTICLES Noji, Thomas T. Bathmann, Ulrich V. Bodungen, Bodo von Voss, Maren Antia, Avan Krumbholz, Manta Klein, Bert Peeken, Ilka Noji, Carola I.-M. Rey, Francisco Clearance of picoplankton-sized partides and formation of rapidly sinking aggregates by the pteropod, Limacina reiroversa |
topic_facet |
ORIGINAL ARTICLES |
description |
Findings from experiments showed that the web-feeding euthecosomatous pteropod, Limacina retroversa , can produce rapidly sinking, mucous aggregates. It is suggested that, by adhesion, these aggregates scavenged picoplankton-sized particles, which were thus effectively cleared from the medium. In contrast, Calanus finmarchicus was not able to clear these particles in our experiments. Sedimentation velocities of 10 aggregates measured in vivo were up to 1000 m day−1, with an average of {small tilde}300 m day−1 (not including two aggegates with neutral buoyancy). Mean velocities measured for feces of C.finmarchicus , Calanus hyperboreus and Thyssnoessa sp. were consider ably lower. We suggest that the sedimentation of L retroversa aggregates was the source of mucous flocs collected in sediment traps (Bathmann et al., Deep-Sea Res., 38,1341–1360,1991) and at the sea floor at 1200 m depth in the southern Norwegian Sea. This process may be an important mediator of sedimentation to the deep sea, when these pteropods are present in surface waters in large abundance. |
format |
Text |
author |
Noji, Thomas T. Bathmann, Ulrich V. Bodungen, Bodo von Voss, Maren Antia, Avan Krumbholz, Manta Klein, Bert Peeken, Ilka Noji, Carola I.-M. Rey, Francisco |
author_facet |
Noji, Thomas T. Bathmann, Ulrich V. Bodungen, Bodo von Voss, Maren Antia, Avan Krumbholz, Manta Klein, Bert Peeken, Ilka Noji, Carola I.-M. Rey, Francisco |
author_sort |
Noji, Thomas T. |
title |
Clearance of picoplankton-sized partides and formation of rapidly sinking aggregates by the pteropod, Limacina reiroversa |
title_short |
Clearance of picoplankton-sized partides and formation of rapidly sinking aggregates by the pteropod, Limacina reiroversa |
title_full |
Clearance of picoplankton-sized partides and formation of rapidly sinking aggregates by the pteropod, Limacina reiroversa |
title_fullStr |
Clearance of picoplankton-sized partides and formation of rapidly sinking aggregates by the pteropod, Limacina reiroversa |
title_full_unstemmed |
Clearance of picoplankton-sized partides and formation of rapidly sinking aggregates by the pteropod, Limacina reiroversa |
title_sort |
clearance of picoplankton-sized partides and formation of rapidly sinking aggregates by the pteropod, limacina reiroversa |
publisher |
Oxford University Press |
publishDate |
1997 |
url |
http://plankt.oxfordjournals.org/cgi/content/short/19/7/863 https://doi.org/10.1093/plankt/19.7.863 |
geographic |
Norwegian Sea |
geographic_facet |
Norwegian Sea |
genre |
Calanus finmarchicus Calanus hyperboreus Norwegian Sea |
genre_facet |
Calanus finmarchicus Calanus hyperboreus Norwegian Sea |
op_relation |
http://plankt.oxfordjournals.org/cgi/content/short/19/7/863 http://dx.doi.org/10.1093/plankt/19.7.863 |
op_rights |
Copyright (C) 1997, Oxford University Press |
op_doi |
https://doi.org/10.1093/plankt/19.7.863 |
container_title |
Journal of Plankton Research |
container_volume |
19 |
container_issue |
7 |
container_start_page |
863 |
op_container_end_page |
875 |
_version_ |
1766382977730740224 |