Acoustic signals produced by Nile tilapia Oreochromis niloticus and black-chinned tilapia Sarotherodon melanotheron during intra- and interspecific pairings

Akian Djetouan Dieudonne, Yao Kouakou, Parmentier Eric, Joassard Lucette, Clota Frédéric, Baroiller Jean-François, Lozano Paul, Chatain Béatrice, Bégout Marie-Laure. 2020. Acoustic signals produced by Nile tilapia Oreochromis niloticus and black-chinned tilapia Sarotherodon melanotheron during intra- and interspecific pairings. Zoology, 143:125831, 10 p.

Quartile : Q2, Sujet : ZOOLOGY

Liste HCERES des revues (en SHS) : oui

Thème(s) HCERES des revues (en SHS) : Psychologie-éthologie-ergonomie

Résumé : We characterised, for the first-time, the sound production of black-chinned tilapia Sarotherodon melanotheron and show differences with that of Nile tilapia Oreochromis niloticus in a hybridization pairing context. Although both species were able to produce drum sounds, they showed different acoustic features. Drum sounds were produced in aggressive (chasing or lateral attack) and non-aggressive (courtship) contexts by O. niloticus but only in aggressive situations (fleeing or avoidance) by S. melanotheron. The second type of sounds produced by O. niloticus were grunts, produced in both aggressive (chasing and after biting) and non-aggressive contexts (nest building). The second type of sound produced by S. melanotheron was a rolling sound, produced only during courtship. Each species was able to produce common sounds (drum) and species-specific sounds (grunts and rolling). This implies that species can communicate without being able to understand each other because the sounds emitted may probably have different significance. Drumming corresponded only to aggressivity in S. melanotheron, whereas this was not true for O. niloticus. 11-ketotestosterone (11-kt) levels were significantly higher in male O. niloticus than male S. melanotheron, but there was no significant correlation between 11-kt or estradiol concentrations and the number of sounds produced in aggressive or non-aggressive behavioural contexts in either species. During interspecies interactions, O. niloticus drum sounds are likely considered to be aggressive by S. melanotheron and could potentially constitute a reproductive barrier between the two species.

Mots-clés Agrovoc : communication animale, comportement animal, hybridation interspécifique, son (acoustique), Oreochromis niloticus, Sarotherodon melanotheron

Mots-clés libres : Tilapias, Oreochromis niloticus, Sarotherodon melanotheron, Comportement, Sons

Classification Agris : L20 - Écologie animale
L53 - Physiologie animale - Reproduction

Champ stratégique Cirad : CTS 7 (2019-) - Hors champs stratégiques

Auteurs et affiliations

• Akian Djetouan Dieudonne, INPHB (CIV)
• Yao Kouakou, UNA [Université Nangui Abrogoua] (CIV)
• Parmentier Eric, Université de Liège (BEL)
• Joassard Lucette, IFREMER (FRA)
• Clota Frédéric, INRAE (FRA)
• Baroiller Jean-François, CIRAD-PERSYST-UMR ISEM (FRA) ORCID: 0000-0002-0992-1725
• Lozano Paul, ISEM (FRA)
• Chatain Béatrice, Université de Montpellier (FRA)
• Bégout Marie-Laure, IFREMER (FRA) - auteur correspondant

Source : Cirad-Agritrop (https://agritrop.cirad.fr/599557/)

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