Behavioral and chromatic dynamics describing mating interactions of the south American octopus <i>Robsonella fontaniana</i> (Cephalopoda: Octopodidae)

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dc.contributor.authorCifuentes, Victor
dc.contributor.authorPerez-Matus, Alejandro
dc.contributor.authorFernandez, Miriam
dc.contributor.authorIbanez, Christian M.
dc.contributor.authorCarrasco, Sergio A.
dc.date.accessioned2025-01-20T17:38:02Z
dc.date.available2025-01-20T17:38:02Z
dc.date.issued2023
dc.description.abstractCephalopods are characterized by a substantial behavioral flexibility during reproductive interactions; however, for octopods rather few studies have provided empirical information on the mechanisms operating during male-male and male-female encounters. Using the small south American octopus Robsonella fontaniana (similar to 270 mm total length, similar to 70 mm mantle length), we evaluated the mating behavior based on octopuses from central Chile. Eighteen male-female and five male-male interactions were characterized in laboratory using ethograms divided into precopulatory and copulatory stages. Although subjects' interactions occurred in both treatments, extended mating periods (81-196 min) were only observed in the male-female trials, and specifically, in those involving larger octopuses (39% of the interactions; > 43 mm mantle length). During the precopulatory stage (4-20 min), different behavioral displays were evidenced in 57% of these male-female interactions, including: contact, exhibition of chromatic displays, swimming, and mounting. Larger pairs had longer copulation times, with a maximum of similar to 200 min in octopuses of 50 mm mantle length. The observed mating in adult male-female pairs and the practically null interaction between juveniles suggest that a maturity-conditional reproductive behavior (similar to 43 mm mantle length; similar to 38 gr), could be one of the mechanisms modulating mating interactions of R. fontaniana in the wild, potentially influencing aspects such as mate guarding behavior, possible sperm removal or sperm loading. (c) 2023 Elsevier B.V. All rights reserved.
dc.description.funderANID-FONDECYT research grants
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.rsma.2023.103121
dc.identifier.issn2352-4855
dc.identifier.urihttps://doi.org/10.1016/j.rsma.2023.103121
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/91700
dc.identifier.wosidWOS:001066196000001
dc.language.isoen
dc.revistaRegional studies in marine science
dc.rightsacceso restringido
dc.subjectSexual behavior
dc.subjectAgonistic displays
dc.subjectCopulation
dc.subjectHectocotylus
dc.subjectSpermatophore
dc.subjectSpawning
dc.subject.ods13 Climate Action
dc.subject.ods14 Life Below Water
dc.subject.odspa13 Acción por el clima
dc.subject.odspa14 Vida submarina
dc.titleBehavioral and chromatic dynamics describing mating interactions of the south American octopus <i>Robsonella fontaniana</i> (Cephalopoda: Octopodidae)
dc.typeartículo
dc.volumen66
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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