%0 Journal Article %J ECOLOGY OF FRESHWATER FISH %D 2016 %T Larval traits of the Caribbean amphidromous goby Sicydium punctatum (Gobioidei: Sicydiinae) in Guadeloupe %A Léa Lejeune %A Hélène Tabouret %A Taillebois, Laura %A Monti, Dominique %A Philippe Keith %K amphidromy %K larval dispersal %K Lesser Antilles %K otolith %K Sicydiinae %B ECOLOGY OF FRESHWATER FISH %V 25 %P 272-280 %G eng %0 Journal Article %J Life and environment. %D 2015 %T Inputs from Microchemistry to the understanding of three Sicydiinae species’ life cycle. %A Taillebois, Laura %A Hélène Tabouret %A Pécheyran, C %A Philippe Keith %K amphidromy %K LIFE HISTORY %K MICROCHEMISTRY %K Sicydiinae %B Life and environment. %V 65 %P 73-84 %G eng %N 2 %0 Journal Article %J Life and environment %D 2015 %T Inputs from Microchemistry to the understanding of three Sicydiinae species’ life cycle. %A Taillebois, Laura %A Hélène Tabouret %A Pécheyran, C %A Philippe Keith %K amphidromy %K LIFE HISTORY %K MICROCHEMISTRY %K Sicydiinae %B Life and environment %V 65 %P 73-84 %G eng %N 2 %0 Journal Article %J Marine and Freshwater Research %D 2014 %T Amphidromy and marine larval phase of ancestral Gobioids Rhyacichthys guilberti and Protogobius attiti (Teleostei: Rhyacichthyidae). %A Hélène Tabouret %A Tomadin, Marina %A Taillebois, Laura %A Iida, Midori %A Clara Lord %A Pécheyran, C %A Philippe Keith %K diadromy %K freshwater gobies %K otolith microchemistry %K tropical islands. %X
Even if amphidromous fish species contribute most to the diversity of fish communities in the tropical insular
rivers, their biological cycle remain poorly known. For the first time, the otolith elemental composition and microstructure
of two ancestral gobioids, Rhyacichthys guilberti and Protogobius attiti, were investigated to describe their biological
cycle and pelagic larval duration (PLD). The otolith analysis using a femtosecond laser ablation coupled to an inductively
coupled plasma–mass spectrometer (fs-LA-ICP-MS) revealed an amphidromous life history for R. guilberti and it
suggested a progressive habitat shift from a marine habitat to a freshwater environment for P. attiti. For the first time, an
endemic species, P. attiti, showed longer and more variable PLD (55.213.5 days) than did a widespread one
(R. guilberti: ,30 days). These results need to be confirmed by analysing more samples but suggest that factors other
than the PLD control endemism and dispersal processes. In association with this first description of the biological cycle for
both species, such an approach is a prerequisite for the management and conservation of both patrimonial species.
Since 1861, freshwater fishes have been studied at different periods in New Caledonia. The first list was published in 1915, but the
major inventories were done between 1998 and 2003. These inventories allowed the discovery of many new species and the publication,
in 2003, of the Atlas of Freshwater fish and crustaceans of New Caledonia, which listed 64 freshwater fish species. Between 2004
and 2010, additional specific surveys were conducted by the MNHN and 9 species were added. Among them, 3 were new for science.
Gobiidae family represents 30% of the freshwater fishes of New Caledonia. This high percentage is explained by their particular life
cycle adapted to insular systems.
The Sicydiinae subfamily (Teleostei: Gobioidei) is the biggest contributor to the diversity of fish communities in river systems of tropical islands. These species are found in the Indo-Pacific area, the Caribbean region and West Africa. They spawn in freshwater, their planktotrophic larvae drift downstream to the sea where they develop, before returning to the rivers to grow and reproduce. Hence, they are called amphidromous. Their phylogeny has been explored using a total of 3545 sites from 5 molecular markers (mitochondrial DNA: 16S rDNA, cytochrome oxidase I, cytochrome b; nuclear DNA: rhodopsin gene and a nuclear marker specially developed for this study, the interferon regulatory factor 2 binding protein 1-IRF2PB1). Sequences were obtained for 59 Sicydiinae specimens of 9 known genera. The Bayesian and maximum likelihood analyses support the monophyly of the subfamily as well as the monophylyof all genera except Sicydium, which is paraphyletic. Five major clades were identified within this subfamily. One clade contained the genus Stiphodon. Another clade contained Sicyopterus, Sicydium and Parasicydium with Sicyopterus as sister genus of Sicydium. The non-monophyly of Sicydium subclade, because it includes the monotypic genus Parasicydium, challenged the validity of Parasicydium genus. Ancestral area reconstruction showed that the subfamily emerged in the Central West Pacific region implying that previous hypotheses proposing a dispersal route for Sicydiinae into the Atlantic Ocean are unsupported by the present analysis. Our results suggest that the hypotheses for the dispersal route of the genus Sicydium should be reconsidered.
%B Mol Phylogenet Evol %V 70 %P 260-71 %8 2014 Jan %G eng %R 10.1016/j.ympev.2013.09.026 %0 Journal Article %J Cybium %D 2014 %T Status and distribution of Smilosicyopus species (Teleostei, Gobioidei) %A Philippe Keith %A Taillebois, Laura %K Distribution %K Gobiidae %K Sicydiinae %K Smilosicyopus %XStatus and distribution of Smilosicyopus species are unclear, as they are rare, difficult to sample and to distinguish. During thirteen years, many specimens were collected by the MNHN and collaborators in Pacific islands, including samples in all type localities. These specimens were compared and sequenced with COI gene. Seven species over the eight known were confirmed; indeed S. mystax is considered to be a synonym of S. leprurus. Further Smilosicyopus species have finally a broader distribution than thought and endemicity seems to be not the main rule in this genus. A key to species is given.
%B Cybium %V 38 %P 69-73 %G eng %N 1