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Vocal rhythms in nesting Lusitanian toadfish, Halobatrachus didactylus

2021-07Artigo científico Acesso aberto
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dc.contributor.authorVieira, Manuel
dc.contributor.authorAmorim, M. Clara P.
dc.contributor.authorFonseca, Paulo
dc.date.accessioned2022-02-28T17:50:33Z
dc.date.available2023-07-01T00:31:08Z
dc.date.issued2021-07
dc.description.abstractMales of several fish species aggregate and vocalize together, increasing the detection range of the sounds and their chances of mating. In the Lusitanian toadfish (Halobatrachus didactylus), breeding males build nests under rocks in close proximity and produce hundreds of boatwhistles (BW) an hour to attract females to lay their demersal eggs on their nest. Chorusing behaviour includes fine-scale interactions between individuals, a behavioural dynamic worth investigating in this highly vocal fish. Here we present a study to further investigate this species' vocal temporal patterns on a fine (individual rhythms and male-male interactions) and large (chorus daily patterns) scales. Several datasets recorded in the Tagus estuary were labelled with the support of an automatic recognition system based on hidden Markov models. Fine-scale vocal temporal patterns exhibit high variability between and within individuals, varying from an almost isochronous to an apparent aperiodic pattern. When in a chorus, males exhibited alternation or synchrony calling patterns, possibly depending on motivation and social context (mating or male-male competition). When engaged in sustained calling, males usually alternated vocalizations with their close neighbours thus avoiding superposition of calls. Synchrony was observed mostly in fish with lower mean calling rate. Interaction patterns were less obvious in more distanced males. Daily choruses showed periods with several active calling males and periods of low activity with no significant diel patterns in shallower intertidal waters. Here, chorusing activity was mainly affected by tide level. In contrast, at a deeper location, tide level did not significantly influence calling and there was a higher calling rate at night. These data show that photoperiod and tide levels can influence broad patterns of Lusitanian toadfish calling activity as in other shallow-water fishes, but fine temporal patterns in acoustic interactions among nesting males is more complex than previously known for fishes.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationVieira M., Amorim M.C.P. & Fonseca P.J. 2021. Vocal rhythms in nesting Lusitanian toadfish, Halobatrachus didactylus. Ecological Informatics 63:101281. https://doi.org/10.1016/j.ecoinf.2021.101281pt_PT
dc.identifier.doi10.1016/j.ecoinf.2021.101281pt_PT
dc.identifier.urihttp://hdl.handle.net/10451/51562
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationFCT SFRH/BD/115562/2016 tpt_PT
dc.relationFCT UID/MAR/04292/2019 tpt_PT
dc.relationFCT UID/BIA/00329/2019pt_PT
dc.titleVocal rhythms in nesting Lusitanian toadfish, Halobatrachus didactyluspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPage101281pt_PT
oaire.citation.titleEcological Informaticspt_PT
oaire.citation.volume63pt_PT
person.familyNameFonseca
person.givenNamePaulo
person.identifier.orcid0000-0002-2663-9385
person.identifier.ridK-1537-2012
person.identifier.scopus-author-id35114657500
rcaap.embargofctO tipo de licença envolvido com a editora Elsevier para esta revista, não envolvendo pagamento (APC), apenas permite acesso em repositório público do formato 'aceite' (i.e não editado e paginado pela editora) após período de embargo de 24 meses após a data da sua publicação final.pt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationcb85f10d-266d-4315-8893-4ea61b4ea47e
relation.isAuthorOfPublication.latestForDiscoverycb85f10d-266d-4315-8893-4ea61b4ea47e

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