Feeding activity and swimming patterns of Acartia grani and Oithona davisae nauplii in the presence of motile and non-motile prey
11 pages, 4 figures, 3 tables The feeding behaviour of the nauplii of the copepods Acartia grani (calanoid) and Oithona davisae (cyclopoid) was investigated in relation to the different motility capabilities of their prey. The prey were the motile dinoflagellate Heterocapsa sp. (equivalent spherical...
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ftcsic:oai:digital.csic.es:10261/26948 2024-02-11T10:09:31+01:00 Feeding activity and swimming patterns of Acartia grani and Oithona davisae nauplii in the presence of motile and non-motile prey Ingerslev Henriksen, Casper Saiz, Enric Calbet, Albert Widding Hansen, Benni 2007-02 5867 bytes application/pdf http://hdl.handle.net/10261/26948 https://doi.org/10.3354/meps331119 en eng Inter Research https://doi.org/10.3354/meps331119 Marine Ecology Progress Series 331: 119-129 (2007) 0171-8630 http://hdl.handle.net/10261/26948 doi:10.3354/meps331119 open Oithona davisae Acartia grani Nauplii Feeding rates Prey motility Swimming patterns artículo http://purl.org/coar/resource_type/c_6501 2007 ftcsic https://doi.org/10.3354/meps331119 2024-01-16T09:28:00Z 11 pages, 4 figures, 3 tables The feeding behaviour of the nauplii of the copepods Acartia grani (calanoid) and Oithona davisae (cyclopoid) was investigated in relation to the different motility capabilities of their prey. The prey were the motile dinoflagellate Heterocapsa sp. (equivalent spherical diameter, ESD = 12.8 µm) and the non-motile diatom Thalassiosira weissflogii (ESD = 14.4 µm). Functional response feeding experiments showed that A. grani nauplii exhibited higher ingestion rates on the motile than on the non-motile prey, with maximum daily rations of, respectively, 299 and 185% body C d–1. O. davisae nauplii showed lower ingestion rates (121% body C d–1) and were unable to feed on the non-motile prey. Video observations showed that A. grani nauplii moved with a continuous hopping behaviour, either in a straight or helical pattern; feeding events were observed mainly while swimming in helicoids. O. davisae nauplii exhibited a jump and sink behaviour, typical of ambush feeding. Both species showed changes in their behaviour when presented with the motile prey Heterocapsa sp. This indicates that the nauplii are capable of adjusting their feeding behaviour to the different prey characteristics, thereby optimising ingestion rates This work was supported by the Spanish Ministry of Education and Science Grants ZOOTRANSFER(REN 2001-1693) and MICROROL (CTM-2004-02575/MAR)to E.S. and A.C., respectively, and by The Danish National Research Council (Grant No. 21-01-0549) to B.W.H. Financial support was furthermore provided by grants from the Danish foundations Knud Højgaards Fond, Nordea Danmark Fonden, Johannes Schmidts Legat for Havforskning, Eiler Kølpin Petersens Legat and Ludvigsens Legat Peer reviewed Article in Journal/Newspaper Copepods ren Digital.CSIC (Spanish National Research Council) Marine Ecology Progress Series 331 119 129 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Oithona davisae Acartia grani Nauplii Feeding rates Prey motility Swimming patterns |
spellingShingle |
Oithona davisae Acartia grani Nauplii Feeding rates Prey motility Swimming patterns Ingerslev Henriksen, Casper Saiz, Enric Calbet, Albert Widding Hansen, Benni Feeding activity and swimming patterns of Acartia grani and Oithona davisae nauplii in the presence of motile and non-motile prey |
topic_facet |
Oithona davisae Acartia grani Nauplii Feeding rates Prey motility Swimming patterns |
description |
11 pages, 4 figures, 3 tables The feeding behaviour of the nauplii of the copepods Acartia grani (calanoid) and Oithona davisae (cyclopoid) was investigated in relation to the different motility capabilities of their prey. The prey were the motile dinoflagellate Heterocapsa sp. (equivalent spherical diameter, ESD = 12.8 µm) and the non-motile diatom Thalassiosira weissflogii (ESD = 14.4 µm). Functional response feeding experiments showed that A. grani nauplii exhibited higher ingestion rates on the motile than on the non-motile prey, with maximum daily rations of, respectively, 299 and 185% body C d–1. O. davisae nauplii showed lower ingestion rates (121% body C d–1) and were unable to feed on the non-motile prey. Video observations showed that A. grani nauplii moved with a continuous hopping behaviour, either in a straight or helical pattern; feeding events were observed mainly while swimming in helicoids. O. davisae nauplii exhibited a jump and sink behaviour, typical of ambush feeding. Both species showed changes in their behaviour when presented with the motile prey Heterocapsa sp. This indicates that the nauplii are capable of adjusting their feeding behaviour to the different prey characteristics, thereby optimising ingestion rates This work was supported by the Spanish Ministry of Education and Science Grants ZOOTRANSFER(REN 2001-1693) and MICROROL (CTM-2004-02575/MAR)to E.S. and A.C., respectively, and by The Danish National Research Council (Grant No. 21-01-0549) to B.W.H. Financial support was furthermore provided by grants from the Danish foundations Knud Højgaards Fond, Nordea Danmark Fonden, Johannes Schmidts Legat for Havforskning, Eiler Kølpin Petersens Legat and Ludvigsens Legat Peer reviewed |
format |
Article in Journal/Newspaper |
author |
Ingerslev Henriksen, Casper Saiz, Enric Calbet, Albert Widding Hansen, Benni |
author_facet |
Ingerslev Henriksen, Casper Saiz, Enric Calbet, Albert Widding Hansen, Benni |
author_sort |
Ingerslev Henriksen, Casper |
title |
Feeding activity and swimming patterns of Acartia grani and Oithona davisae nauplii in the presence of motile and non-motile prey |
title_short |
Feeding activity and swimming patterns of Acartia grani and Oithona davisae nauplii in the presence of motile and non-motile prey |
title_full |
Feeding activity and swimming patterns of Acartia grani and Oithona davisae nauplii in the presence of motile and non-motile prey |
title_fullStr |
Feeding activity and swimming patterns of Acartia grani and Oithona davisae nauplii in the presence of motile and non-motile prey |
title_full_unstemmed |
Feeding activity and swimming patterns of Acartia grani and Oithona davisae nauplii in the presence of motile and non-motile prey |
title_sort |
feeding activity and swimming patterns of acartia grani and oithona davisae nauplii in the presence of motile and non-motile prey |
publisher |
Inter Research |
publishDate |
2007 |
url |
http://hdl.handle.net/10261/26948 https://doi.org/10.3354/meps331119 |
genre |
Copepods ren |
genre_facet |
Copepods ren |
op_relation |
https://doi.org/10.3354/meps331119 Marine Ecology Progress Series 331: 119-129 (2007) 0171-8630 http://hdl.handle.net/10261/26948 doi:10.3354/meps331119 |
op_rights |
open |
op_doi |
https://doi.org/10.3354/meps331119 |
container_title |
Marine Ecology Progress Series |
container_volume |
331 |
container_start_page |
119 |
op_container_end_page |
129 |
_version_ |
1790609430613590016 |