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Cryptic effects of biological invasions: Reduction of the aggressive behaviour of a native fish under the influence of an “invasive” biomolecule

The invasive green alga Caulerpa cylindracea has become an important component of the diet of the Mediterranean white seabream Diplodus sargus. As a consequence of this “exotic diet”, the algal bisindolic alkaloid caulerpin accumulates in the fish tissues. Although the compound shows structural simi...

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Autores principales: Magliozzi, Laura, Almada, Frederico, Robalo, Joana, Mollo, Ernesto, Polese, Gianluca, Gonçalves, Emanuel J., Felline, Serena, Terlizzi, Antonio, D’Aniello, Biagio
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5621679/
https://www.ncbi.nlm.nih.gov/pubmed/28961266
http://dx.doi.org/10.1371/journal.pone.0185620
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author Magliozzi, Laura
Almada, Frederico
Robalo, Joana
Mollo, Ernesto
Polese, Gianluca
Gonçalves, Emanuel J.
Felline, Serena
Terlizzi, Antonio
D’Aniello, Biagio
author_facet Magliozzi, Laura
Almada, Frederico
Robalo, Joana
Mollo, Ernesto
Polese, Gianluca
Gonçalves, Emanuel J.
Felline, Serena
Terlizzi, Antonio
D’Aniello, Biagio
author_sort Magliozzi, Laura
collection PubMed
description The invasive green alga Caulerpa cylindracea has become an important component of the diet of the Mediterranean white seabream Diplodus sargus. As a consequence of this “exotic diet”, the algal bisindolic alkaloid caulerpin accumulates in the fish tissues. Although the compound shows structural similarity to endogenous indolamines that modulate animal behaviour, the potential impact of caulerpin on fish behaviour still remains unexplored. In this report, behavioural experiments both on groups and on single fish responding towards a mirror were performed under different doses of dietary caulerpin. Differences between treated and control groups for each behaviour and for the overall aggressive pattern during the different experimental phases showed that the aggressiveness of D. sargus decreased with the administration of caulerpin. These results call the attention to a still unexplored potential ability of bioactive metabolites from marine invasive species, to alter the behaviour on native species, with putative negative effects on patterns of fish growth and population dynamics.
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spelling pubmed-56216792017-10-17 Cryptic effects of biological invasions: Reduction of the aggressive behaviour of a native fish under the influence of an “invasive” biomolecule Magliozzi, Laura Almada, Frederico Robalo, Joana Mollo, Ernesto Polese, Gianluca Gonçalves, Emanuel J. Felline, Serena Terlizzi, Antonio D’Aniello, Biagio PLoS One Research Article The invasive green alga Caulerpa cylindracea has become an important component of the diet of the Mediterranean white seabream Diplodus sargus. As a consequence of this “exotic diet”, the algal bisindolic alkaloid caulerpin accumulates in the fish tissues. Although the compound shows structural similarity to endogenous indolamines that modulate animal behaviour, the potential impact of caulerpin on fish behaviour still remains unexplored. In this report, behavioural experiments both on groups and on single fish responding towards a mirror were performed under different doses of dietary caulerpin. Differences between treated and control groups for each behaviour and for the overall aggressive pattern during the different experimental phases showed that the aggressiveness of D. sargus decreased with the administration of caulerpin. These results call the attention to a still unexplored potential ability of bioactive metabolites from marine invasive species, to alter the behaviour on native species, with putative negative effects on patterns of fish growth and population dynamics. Public Library of Science 2017-09-29 /pmc/articles/PMC5621679/ /pubmed/28961266 http://dx.doi.org/10.1371/journal.pone.0185620 Text en © 2017 Magliozzi et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Magliozzi, Laura
Almada, Frederico
Robalo, Joana
Mollo, Ernesto
Polese, Gianluca
Gonçalves, Emanuel J.
Felline, Serena
Terlizzi, Antonio
D’Aniello, Biagio
Cryptic effects of biological invasions: Reduction of the aggressive behaviour of a native fish under the influence of an “invasive” biomolecule
title Cryptic effects of biological invasions: Reduction of the aggressive behaviour of a native fish under the influence of an “invasive” biomolecule
title_full Cryptic effects of biological invasions: Reduction of the aggressive behaviour of a native fish under the influence of an “invasive” biomolecule
title_fullStr Cryptic effects of biological invasions: Reduction of the aggressive behaviour of a native fish under the influence of an “invasive” biomolecule
title_full_unstemmed Cryptic effects of biological invasions: Reduction of the aggressive behaviour of a native fish under the influence of an “invasive” biomolecule
title_short Cryptic effects of biological invasions: Reduction of the aggressive behaviour of a native fish under the influence of an “invasive” biomolecule
title_sort cryptic effects of biological invasions: reduction of the aggressive behaviour of a native fish under the influence of an “invasive” biomolecule
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5621679/
https://www.ncbi.nlm.nih.gov/pubmed/28961266
http://dx.doi.org/10.1371/journal.pone.0185620
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