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Integrative taxonomy revisits the ontogeny and trophic niches of Rimicaris vent shrimps ArchiMer
Methou, Pierre; Michel, Loic; Segonzac, Michel; Cambon-bonavita, Marie-anne; Pradillon, Florence.
Among hydrothermal vent species, Rimicaris exoculata is one of the most emblematic, hosting abundant and diverse ectosymbioses that provide most of its nutrition. Rimicaris exoculata co-occurs in dense aggregates with the much less abundant Rimicaris chacei in many Mid-Atlantic Ridge vent fields. This second shrimp also houses ectosymbiotic microorganisms but has a mixotrophic diet. Recent observations have suggested potential misidentifications between these species at their juvenile stages, which could have led to misinterpretations of their early-life ecology. Here, we confirm erroneous identification of the earliest stages and propose a new set of morphological characters unambiguously identifying juveniles of each species. On the basis of this...
Tipo: Text Palavras-chave: Hydrothermal vents; Stable isotopes; Taxonomy; Crustaceans; Life history; Trophic shift.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00640/75227/75368.pdf
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