Amphidromous life cycle of Eleotris fusca (Gobioidei: Eleotridae), a widespread species from the Indo-Pacific studied by otolith analyses
Mennesson Marion , Tabouret Hélène, Pécheyran Christophe, Feunteun Eric, Keith Philippe. 2015. .
ARTICLE, (2015 ) - PUBLISHEDVERSION - English (en-GB)
OPENACCESS -
info:eu-repo/semantics/OpenAccess.
Audience : OTHER
HAL CCSD, Paris : Muséum national d'histoire naturelle
Sujet
Pelagic larval duration, Otolith analysis, Eleotris fusca, Amphidromy, Pelagic larval duration, [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics, Phylogenetics and taxonomy, [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE], [SDV.BBM.BM]Life Sciences [q-bio]/Biochemistry, Molecular Biology/Molecular biology, [SDV.EE]Life Sciences [q-bio]/Ecology, environment, [SDV.GEN]Life Sciences [q-bio]/Genetics, [CHIM.ANAL]Chemical Sciences/Analytical chemistry, [CHIM.MATE]Chemical Sciences/Material chemistry
Domaines
Biologie, Sciences du vivant, Ecologie, Environnement
Description
International audience Eleotris fusca is a widespread amphidromous fish found in the Indo-Pacific area. Its life cycle is characterised by a marine pelagic larval phase allowing the species to disperse in the ocean and then to recruit to remote island rivers. In order to examine its migratory history and pelagic larval duration (PLD), otolith microchemical and microstructural analyses were undertaken on 100 specimens collected in the rivers of 4 areas: Mayotte, Reunion Island (Indian Ocean), Vanuatu and French Polynesia (Pacific Ocean). Variations of Sr:Ca ratios were observed along the otoliths using a femtosecond laser ablation – inductively coupled plasma spectrometer (fs-LA-ICP-MS). The variation of the Sr:Ca ratio allowed us to reconstruct fish migratory movements between sea water (high Sr:Ca) and freshwater (low Sr:Ca), and led us to assume that Eleotris fusca is an amphidromous species. Using microstructural analysis, we observed that the PLD depended on the sampling site. In the Pacific Ocean, the PLD is similar in Vanuatu (mean ± SD: 90 ± 19.2 days) and French Polynesia (96.2 ± 17.5 days) whereas a significant difference emerged in the Indian Ocean between Mayotte (63.3 ± 11 days) and Reunion Island (114.8 ± 21.8 days).
Mots-clés
Biologie, Environnement, Histoire, Ecosystème, Biology, Environment, History
Auteurs
Mennesson, Marion, , Tabouret, Hélène, Pécheyran, Christophe, Feunteun, Eric, Keith, Philippe
Contributeurs
Biologie des Organismes et Ecosystèmes Aquatiques (BOREA) ; Université de Caen Normandie (UNICAEN) ; Normandie Université (NU)-Normandie Université (NU)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA), Muséum national d'Histoire naturelle (MNHN), Laboratoire de Chimie Analytique Bio-Inorganique et Environnement (LCABIE) ; Université de Pau et des Pays de l'Adour (UPPA)-Centre National de la Recherche Scientifique (CNRS)
Sources
ISSN: 0399-0974, EISSN: 2101-0315, Cybium : Revue Internationale d’Ichtyologie, https://hal-mnhn.archives-ouvertes.fr/mnhn-02310405, Cybium : Revue Internationale d’Ichtyologie, Paris : Muséum national d'histoire naturelle, 2015, 2015 (39), pp.249-260. ⟨10.26028/cybium/2015-394-002⟩
Relation
info:eu-repo/semantics/altIdentifier/doi/10.26028/cybium/2015-394-002
