The influence of light availability and predatory behavior of the decapod crustacean Nephrops norvegicus on the activity rhythms of continental margin prey decapods

10 páginas, 2 figuras, 2 tablas.

Bibliographic Details
Authors: Aguzzi, Jacopo, Bahamon, Nixon, Marotta, L.
Format: article
Status:Versión aceptada para publicación
Publication Date:2009
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/56832
Online Access:http://hdl.handle.net/10261/56832
Access Level:Open access
Keyword:Slope
Vector fitting
Behaviour
Decapods
Deep Sea
Diel rhythms
Environmental interpretation
GAMs
Light
Nephrops norvegicus
Predator
Prey
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oai_identifier_str oai:digital.csic.es:10261/56832
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spelling The influence of light availability and predatory behavior of the decapod crustacean Nephrops norvegicus on the activity rhythms of continental margin prey decapodsAguzzi, JacopoBahamon, NixonMarotta, L.SlopeVector fittingBehaviourDecapodsDeep SeaDiel rhythmsEnvironmental interpretationGAMsLightNephrops norvegicusPredatorPrey10 páginas, 2 figuras, 2 tablas.The day–night cycle is one of the strongest geophysical cycles modulating species’ behavioral rhythms. However, in deep-water continental margins, where light intensity decreases over depth, interspecific competition may alter behavioral responses to day–night cycles. The burrowing decapod crustacean Nephrops norvegicus is a large-size predator in benthic communities, exerting despotic territorial behavior. In this study, we analysed how the effect of light intensity cycles on decapod behavioral rhythms is reduced as one moves from shelves to slopes. In the Western Mediterranean, the predatory behavior and interspecific competition for substrate use of Nephrops increases moving from the shelf (100–110 m) to the slope (400–430 m). Vector fitting and generalized additive models were used to assess the effect of light intensity and behavioral rhythms of N. norvegicus on the temporal variation of prey decapods co-occurring in trawl tow catches carried out on the shelf and the slope during October 1999 and June 2000. The combination of diel variations in light intensity and N. norvegicus abundance influences the activity rhythms of prey decapods in a depth- and seasonal-dependent manner. Light modulation is stronger on the shelf and weaker on the slope, where Nephrops population size is greater. Although present regression analysis does not necessarily imply a direct cause– effect relationship between rhythms of predators and prey, we suggest that Nephrops alters the temporal patterning in the behavior of its prey on the slope, where light intensity is reduced. This alteration is stronger in endobenthic species than in benthopelagic species; the former rely on bottom substrate for the expression of behavioral rhythms, experiencing stronger interspecific competitions with Nephrops at time of activity.We acknowledge Prof. F. Sarda` (ICM-CSIC), head of the project NERIT (MAR98-0935) funded by the Spanish CICYT. J. Aguzzi is a postdoctoral fellow in the ‘Juan de la Cierva’ Program (Spanish Ministry of Education and Science)Peer reviewedBlackwell PublishingConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]201220122009info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttp://hdl.handle.net/10261/56832reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1111/j.1439-0485.2008.00276.xSíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/568322026-05-22T06:33:51Z
dc.title.none.fl_str_mv The influence of light availability and predatory behavior of the decapod crustacean Nephrops norvegicus on the activity rhythms of continental margin prey decapods
title The influence of light availability and predatory behavior of the decapod crustacean Nephrops norvegicus on the activity rhythms of continental margin prey decapods
spellingShingle The influence of light availability and predatory behavior of the decapod crustacean Nephrops norvegicus on the activity rhythms of continental margin prey decapods
Aguzzi, Jacopo
Slope
Vector fitting
Behaviour
Decapods
Deep Sea
Diel rhythms
Environmental interpretation
GAMs
Light
Nephrops norvegicus
Predator
Prey
title_short The influence of light availability and predatory behavior of the decapod crustacean Nephrops norvegicus on the activity rhythms of continental margin prey decapods
title_full The influence of light availability and predatory behavior of the decapod crustacean Nephrops norvegicus on the activity rhythms of continental margin prey decapods
title_fullStr The influence of light availability and predatory behavior of the decapod crustacean Nephrops norvegicus on the activity rhythms of continental margin prey decapods
title_full_unstemmed The influence of light availability and predatory behavior of the decapod crustacean Nephrops norvegicus on the activity rhythms of continental margin prey decapods
title_sort The influence of light availability and predatory behavior of the decapod crustacean Nephrops norvegicus on the activity rhythms of continental margin prey decapods
dc.creator.none.fl_str_mv Aguzzi, Jacopo
Bahamon, Nixon
Marotta, L.
author Aguzzi, Jacopo
author_facet Aguzzi, Jacopo
Bahamon, Nixon
Marotta, L.
author_role author
author2 Bahamon, Nixon
Marotta, L.
author2_role author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Slope
Vector fitting
Behaviour
Decapods
Deep Sea
Diel rhythms
Environmental interpretation
GAMs
Light
Nephrops norvegicus
Predator
Prey
topic Slope
Vector fitting
Behaviour
Decapods
Deep Sea
Diel rhythms
Environmental interpretation
GAMs
Light
Nephrops norvegicus
Predator
Prey
description 10 páginas, 2 figuras, 2 tablas.
publishDate 2009
dc.date.none.fl_str_mv 2009
2012
2012
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/56832
url http://hdl.handle.net/10261/56832
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1111/j.1439-0485.2008.00276.x
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Blackwell Publishing
publisher.none.fl_str_mv Blackwell Publishing
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.198674

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