An Enriched Environment Promotes Shelter-Seeking Behaviour and Survival of Hatchery-Produced Juvenile European Lobster (Homarus gammarus).
The high loss of newly released hatchery-reared European lobster (Homarus gammarus) juveniles for stock enhancement is believed to be the result of maladaptive anti-predator behaviour connected to deprived stimuli in the hatchery environment. Our objective was to learn if an enriched hatchery enviro...
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ftdoajarticles:oai:doaj.org/article:7fbe677af1b3422ea5a3fc548cd83c0f 2023-05-15T16:08:47+02:00 An Enriched Environment Promotes Shelter-Seeking Behaviour and Survival of Hatchery-Produced Juvenile European Lobster (Homarus gammarus). Stian Aspaas Ellen Sofie Grefsrud Anders Fernö Knut Helge Jensen Henrik Trengereid Ann-Lisbeth Agnalt 2016-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0159807 https://doaj.org/article/7fbe677af1b3422ea5a3fc548cd83c0f EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC4999228?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0159807 https://doaj.org/article/7fbe677af1b3422ea5a3fc548cd83c0f PLoS ONE, Vol 11, Iss 8, p e0159807 (2016) Medicine R Science Q article 2016 ftdoajarticles https://doi.org/10.1371/journal.pone.0159807 2022-12-31T02:18:26Z The high loss of newly released hatchery-reared European lobster (Homarus gammarus) juveniles for stock enhancement is believed to be the result of maladaptive anti-predator behaviour connected to deprived stimuli in the hatchery environment. Our objective was to learn if an enriched hatchery environment enhances shelter-seeking behaviour and survival. In the "naïve" treatment, the juveniles were raised in single compartments without substrate and shelter whereas juveniles in the "exposed" treatment experienced substrate, shelter and interactions with conspecifics. Three experiments with increasing complexity were conducted. Few differences in shelter-seeking behaviour were found between treatments when one naïve or one exposed juvenile were observed alone. When observing interactions between one naïve and one exposed juvenile competing for shelter, naïve juveniles more often initiated the first aggressive encounter. The third experiment was set up to simulate a release for stock enhancement. Naïve and exposed juveniles were introduced to a semi-natural environment including substrate, a limited number of shelters and interactions with conspecifics. Shelter occupancy was recorded three times during a period of 35 days. Exposed juveniles occupied more shelters, grew larger and had higher survival compared with naïve juveniles. Our results demonstrate that experience of environmental complexity and social interactions increase shelter-seeking ability and survival in hatchery reared lobster juveniles. Article in Journal/Newspaper European lobster Homarus gammarus Directory of Open Access Journals: DOAJ Articles PLOS ONE 11 8 e0159807 |
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English |
topic |
Medicine R Science Q |
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Medicine R Science Q Stian Aspaas Ellen Sofie Grefsrud Anders Fernö Knut Helge Jensen Henrik Trengereid Ann-Lisbeth Agnalt An Enriched Environment Promotes Shelter-Seeking Behaviour and Survival of Hatchery-Produced Juvenile European Lobster (Homarus gammarus). |
topic_facet |
Medicine R Science Q |
description |
The high loss of newly released hatchery-reared European lobster (Homarus gammarus) juveniles for stock enhancement is believed to be the result of maladaptive anti-predator behaviour connected to deprived stimuli in the hatchery environment. Our objective was to learn if an enriched hatchery environment enhances shelter-seeking behaviour and survival. In the "naïve" treatment, the juveniles were raised in single compartments without substrate and shelter whereas juveniles in the "exposed" treatment experienced substrate, shelter and interactions with conspecifics. Three experiments with increasing complexity were conducted. Few differences in shelter-seeking behaviour were found between treatments when one naïve or one exposed juvenile were observed alone. When observing interactions between one naïve and one exposed juvenile competing for shelter, naïve juveniles more often initiated the first aggressive encounter. The third experiment was set up to simulate a release for stock enhancement. Naïve and exposed juveniles were introduced to a semi-natural environment including substrate, a limited number of shelters and interactions with conspecifics. Shelter occupancy was recorded three times during a period of 35 days. Exposed juveniles occupied more shelters, grew larger and had higher survival compared with naïve juveniles. Our results demonstrate that experience of environmental complexity and social interactions increase shelter-seeking ability and survival in hatchery reared lobster juveniles. |
format |
Article in Journal/Newspaper |
author |
Stian Aspaas Ellen Sofie Grefsrud Anders Fernö Knut Helge Jensen Henrik Trengereid Ann-Lisbeth Agnalt |
author_facet |
Stian Aspaas Ellen Sofie Grefsrud Anders Fernö Knut Helge Jensen Henrik Trengereid Ann-Lisbeth Agnalt |
author_sort |
Stian Aspaas |
title |
An Enriched Environment Promotes Shelter-Seeking Behaviour and Survival of Hatchery-Produced Juvenile European Lobster (Homarus gammarus). |
title_short |
An Enriched Environment Promotes Shelter-Seeking Behaviour and Survival of Hatchery-Produced Juvenile European Lobster (Homarus gammarus). |
title_full |
An Enriched Environment Promotes Shelter-Seeking Behaviour and Survival of Hatchery-Produced Juvenile European Lobster (Homarus gammarus). |
title_fullStr |
An Enriched Environment Promotes Shelter-Seeking Behaviour and Survival of Hatchery-Produced Juvenile European Lobster (Homarus gammarus). |
title_full_unstemmed |
An Enriched Environment Promotes Shelter-Seeking Behaviour and Survival of Hatchery-Produced Juvenile European Lobster (Homarus gammarus). |
title_sort |
enriched environment promotes shelter-seeking behaviour and survival of hatchery-produced juvenile european lobster (homarus gammarus). |
publisher |
Public Library of Science (PLoS) |
publishDate |
2016 |
url |
https://doi.org/10.1371/journal.pone.0159807 https://doaj.org/article/7fbe677af1b3422ea5a3fc548cd83c0f |
genre |
European lobster Homarus gammarus |
genre_facet |
European lobster Homarus gammarus |
op_source |
PLoS ONE, Vol 11, Iss 8, p e0159807 (2016) |
op_relation |
http://europepmc.org/articles/PMC4999228?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0159807 https://doaj.org/article/7fbe677af1b3422ea5a3fc548cd83c0f |
op_doi |
https://doi.org/10.1371/journal.pone.0159807 |
container_title |
PLOS ONE |
container_volume |
11 |
container_issue |
8 |
container_start_page |
e0159807 |
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