Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.12/5843
Título: Cryptic effects of biological invasions: Reduction of the aggressive behaviour of a native fish under the influence of an "invasive" biomolecule
Autor: Magliozzi, Laura
Almada, Frederico
Robalo, Joana Isabel
Mollo, Ernesto
Polese, Gianluca
Gonçalves, Emanuel João
Felline, Serena
Terlizzi, Antonio
D'Aniello, Biagio
Data: 2017
Editora: University of Windsor, Canadá
Resumo: 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 ªexotic dietº, 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
Peer review: yes
URI: http://hdl.handle.net/10400.12/5843
DOI: 10.1371/journal.pone.0185620
Aparece nas colecções:MARE - Artigos em revistas internacionais

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