Feeding behavior and capture success of turbot Psetta maxima larvae during the transition from upright to tilted swimming position
Aquaculture production of high-quality marine fish larvae might be hampered by poor success in larval initiation of exogenous feeding or the lack of appropriate live feed in their first feeding period. The period of larval metamorphosis may further constrain the successful rearing of flatfish larvae...
Published in: | Aquatic Living Resources |
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2017
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Online Access: | https://forskning.ruc.dk/da/publications/a29be5ad-8a41-49de-8e29-612e1cd6bc4e https://doi.org/10.1051/alr/2017028 https://hdl.handle.net/1800/a29be5ad-8a41-49de-8e29-612e1cd6bc4e |
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fturoskildefispu:oai:pure.atira.dk:publications/a29be5ad-8a41-49de-8e29-612e1cd6bc4e 2023-05-15T18:41:09+02:00 Feeding behavior and capture success of turbot Psetta maxima larvae during the transition from upright to tilted swimming position Bruno, Eleonora Marhjoub, Mohamed-Sofiane Hansen, Benni Winding Munk, Peter Støttrup, Josianne Gatt 2017 https://forskning.ruc.dk/da/publications/a29be5ad-8a41-49de-8e29-612e1cd6bc4e https://doi.org/10.1051/alr/2017028 https://hdl.handle.net/1800/a29be5ad-8a41-49de-8e29-612e1cd6bc4e eng eng info:eu-repo/semantics/closedAccess Bruno , E , Marhjoub , M-S , Hansen , B W , Munk , P & Støttrup , J G 2017 , ' Feeding behavior and capture success of turbot Psetta maxima larvae during the transition from upright to tilted swimming position ' , Aquatic Living Resources , vol. 30 , 35 . https://doi.org/10.1051/alr/2017028 Flatfish Larvae Capture success Feeding behavior Copepods article 2017 fturoskildefispu https://doi.org/10.1051/alr/2017028 2022-12-11T06:59:46Z Aquaculture production of high-quality marine fish larvae might be hampered by poor success in larval initiation of exogenous feeding or the lack of appropriate live feed in their first feeding period. The period of larval metamorphosis may further constrain the successful rearing of flatfish larvae. In order to ascertain changes in feeding during metamorphosis of flatfish, we here compared feeding behavior when larvae of turbot Psetta maxima were either swimming upright or tilted. Using video recordings, we compared the attack rate and prey capture success between flexion (12–13 days-post-hatch, stage 4b–4c) swimming predominantly in upright position and post-flexion (16–17 days-post-hatch, stage 5a–5b) larvae in tilted swimming mode. Both larval groups were fed on copepod nauplii and copepodites. Our results showed a capture success of <50% during the flexion stage, increasing to 73% in the post-flexion stage, and larvae were more successful when feeding on nauplii than when offered copepodite stages. An ontogenetic shift from intermittent to cruise swimming was observed during the metamorphosis concomitant with improved hunting skills. Thus larvae appeared to be able to successfully complete metamorphosis without compromising their feeding ability on copepod prey. Aquaculture production of high-quality marine fish larvae might be hampered by poor success in larval initiation of exogenous feeding or the lack of appropriate live feed in their first feeding period. The period of larval metamorphosis may further constrain the successful rearing of flatfish larvae. In order to ascertain changes in feeding during metamorphosis of flatfish, we here compared feeding behavior when larvae of turbot Psetta maxima were either swimming upright or tilted. Using video recordings, we compared the attack rate and prey capture success between flexion (12–13 days-post-hatch, stage 4b–4c) swimming predominantly in upright position and post-flexion (16–17 days-post-hatch, stage 5a–5b) larvae in tilted swimming mode. Both ... Article in Journal/Newspaper Turbot Copepods Roskilde University Research Portal (RUC) Aquatic Living Resources 30 35 |
institution |
Open Polar |
collection |
Roskilde University Research Portal (RUC) |
op_collection_id |
fturoskildefispu |
language |
English |
topic |
Flatfish Larvae Capture success Feeding behavior Copepods |
spellingShingle |
Flatfish Larvae Capture success Feeding behavior Copepods Bruno, Eleonora Marhjoub, Mohamed-Sofiane Hansen, Benni Winding Munk, Peter Støttrup, Josianne Gatt Feeding behavior and capture success of turbot Psetta maxima larvae during the transition from upright to tilted swimming position |
topic_facet |
Flatfish Larvae Capture success Feeding behavior Copepods |
description |
Aquaculture production of high-quality marine fish larvae might be hampered by poor success in larval initiation of exogenous feeding or the lack of appropriate live feed in their first feeding period. The period of larval metamorphosis may further constrain the successful rearing of flatfish larvae. In order to ascertain changes in feeding during metamorphosis of flatfish, we here compared feeding behavior when larvae of turbot Psetta maxima were either swimming upright or tilted. Using video recordings, we compared the attack rate and prey capture success between flexion (12–13 days-post-hatch, stage 4b–4c) swimming predominantly in upright position and post-flexion (16–17 days-post-hatch, stage 5a–5b) larvae in tilted swimming mode. Both larval groups were fed on copepod nauplii and copepodites. Our results showed a capture success of <50% during the flexion stage, increasing to 73% in the post-flexion stage, and larvae were more successful when feeding on nauplii than when offered copepodite stages. An ontogenetic shift from intermittent to cruise swimming was observed during the metamorphosis concomitant with improved hunting skills. Thus larvae appeared to be able to successfully complete metamorphosis without compromising their feeding ability on copepod prey. Aquaculture production of high-quality marine fish larvae might be hampered by poor success in larval initiation of exogenous feeding or the lack of appropriate live feed in their first feeding period. The period of larval metamorphosis may further constrain the successful rearing of flatfish larvae. In order to ascertain changes in feeding during metamorphosis of flatfish, we here compared feeding behavior when larvae of turbot Psetta maxima were either swimming upright or tilted. Using video recordings, we compared the attack rate and prey capture success between flexion (12–13 days-post-hatch, stage 4b–4c) swimming predominantly in upright position and post-flexion (16–17 days-post-hatch, stage 5a–5b) larvae in tilted swimming mode. Both ... |
format |
Article in Journal/Newspaper |
author |
Bruno, Eleonora Marhjoub, Mohamed-Sofiane Hansen, Benni Winding Munk, Peter Støttrup, Josianne Gatt |
author_facet |
Bruno, Eleonora Marhjoub, Mohamed-Sofiane Hansen, Benni Winding Munk, Peter Støttrup, Josianne Gatt |
author_sort |
Bruno, Eleonora |
title |
Feeding behavior and capture success of turbot Psetta maxima larvae during the transition from upright to tilted swimming position |
title_short |
Feeding behavior and capture success of turbot Psetta maxima larvae during the transition from upright to tilted swimming position |
title_full |
Feeding behavior and capture success of turbot Psetta maxima larvae during the transition from upright to tilted swimming position |
title_fullStr |
Feeding behavior and capture success of turbot Psetta maxima larvae during the transition from upright to tilted swimming position |
title_full_unstemmed |
Feeding behavior and capture success of turbot Psetta maxima larvae during the transition from upright to tilted swimming position |
title_sort |
feeding behavior and capture success of turbot psetta maxima larvae during the transition from upright to tilted swimming position |
publishDate |
2017 |
url |
https://forskning.ruc.dk/da/publications/a29be5ad-8a41-49de-8e29-612e1cd6bc4e https://doi.org/10.1051/alr/2017028 https://hdl.handle.net/1800/a29be5ad-8a41-49de-8e29-612e1cd6bc4e |
genre |
Turbot Copepods |
genre_facet |
Turbot Copepods |
op_source |
Bruno , E , Marhjoub , M-S , Hansen , B W , Munk , P & Støttrup , J G 2017 , ' Feeding behavior and capture success of turbot Psetta maxima larvae during the transition from upright to tilted swimming position ' , Aquatic Living Resources , vol. 30 , 35 . https://doi.org/10.1051/alr/2017028 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1051/alr/2017028 |
container_title |
Aquatic Living Resources |
container_volume |
30 |
container_start_page |
35 |
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1766230649508724736 |