| the ability of damselfish to distinguish between dangerous and harmless sea snakes. | in defence of their nests or territories, damselfish (pomacentridae) attack even large and potentially dangerous intruders. the indo-pacific region contains many species of sea snakes, some of which eat damselfish whereas others do not. can the fishes identify which sea snake taxa pose a threat? we recorded responses of damselfishes to natural encounters with five species of snakes in two shallow bays near noumea, new caledonia. attacks by fishes were performed mostly by demersal territorial spe ... | 2020 | 31992782 |
| new species and new records of camallanid nematodes (nematoda, camallanidae) from marine fishes and sea snakes in new caledonia. | recent examinations of camallanid nematodes (camallanidae) from marine fishes off new caledonia, collected in the years 2003-2011, revealed the presence of the following five new species of procamallanus baylis, 1923, all belonging to the subgenus spirocamallanus olsen, 1952: procamallanus (spirocamallanus) dispar n. sp. from the common ponyfish leiognathus equulus (type host) and the striped ponyfish aurigequula fasciata (both leiognathidae, perciformes); procamallanus (spirocamallanus) bothi n ... | 2019 | 31746732 |
| intraspecific variation in the direction and degree of sex-biased dispersal among sea-snake populations. | higher rates of dispersal in one sex than the other are widespread, and often attributed to the genetic advantages of reduced inbreeding. the direction of sex-biased dispersal shows strong phylogenetic conservatism (e.g. males disperse more than females in most mammals, but the reverse is true in most birds). by contrast, our genetic data reveal strong inter-population variation in the relative dispersal rates of two species of sea snakes (laticauda saintgironsi and l. laticaudata) in the noumea ... | 2011 | 21418112 |
| phylogenetic relationships within laticaudine sea snakes (elapidae). | the sea snake subfamily laticaudinae consists of a single genus with eight named species, based on morphological characters. we used microsatellite and mitochondrial dna (mtdna) data to clarify the adaptive radiation of these oviparous sea snakes in the south pacific, with special reference to new caledonia and vanuatu. a mitochondrial dna data set (nd4 gene 793 bp) was obtained from 345 individuals of the five species of laticauda sp. sea snakes endemic to the region. maximum likelihood and bay ... | 2011 | 21414416 |
| variations of natremia in sea kraits (laticauda spp.) kept in seawater and fresh water. | marine tetrapods evolved specific excretory structures (e.g. salt glands) that maintain salt concentrations within a narrow range of variation. however, recent investigations showed that in some lineages (sea snakes), individuals dehydrate in seawater and cannot equilibrate their hydromineral balance without access to fresh water. how these marine species cope with salt gain is therefore puzzling. we sampled two species of amphibious sea kraits (laticauda saintgironsi and l. laticaudata) in the ... | 2013 | 23845707 |
| microsatellite loci for laticaudine sea kraits. | we report the development of 11 polymorphic microsatellite loci (three dinucleotides, one trinucleotide and seven tetranucleotides) that are useful for the detection of population subdivision and the study of philopatry, migration and mating biology in laticaudine sea kraits laticauda saintgironsi and laticauda laticaudata. five loci are highly polymorphic and amplify reliably in both l. saintgironsi and l. laticaudata. an additional three are useful in l. saintgironsi and another three in l. la ... | 2008 | 21586002 |
| effects of oceanic salinity on body condition in sea snakes. | since the transition from terrestrial to marine environments poses strong osmoregulatory and energetic challenges, temporal and spatial fluctuations in oceanic salinity might influence salt and water balance (and hence, body condition) in marine tetrapods. we assessed the effects of salinity on three species of sea snakes studied by mark-recapture in coral-reef habitats in the neo-caledonian lagoon. these three species include one fully aquatic hydrophiine (emydocephalus annulatus), one primaril ... | 2012 | 22710931 |