Taxonomic Review of the Hydrothermal Vent Shrimp Genera Rimicaris Williams &amp; Rona and Chorocaris Martin &amp; Hessler (Crustacea: Decapoda: Caridea: Alvinocarididae)

Komai, Tomoyuki; Segonzac, Michel

doi:10.2983/0730-8000(2008)27[21:trothv]2.0.co;2

Cited by 37 publications

(67 citation statements)

References 20 publications

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“…However, it may sometimes be misidentified as "Chorocaris" (Komai et al 2006); indeed, Hashimoto et al (2001), Van Dover et al (2001), andNakamura et al (2012) have described it as "Chorocaris." Although most Chorocaris shrimps are found in the Pacific Ocean, the solitary congeneric species M. fortunata is found only on the MAR (Komai and Segonzac 2003). The presence of the Mirocaris shrimp on the CIR supports the hypothesized relationship between the vent fauna on the MAR and that on the CIR.…”

Section: Distribution and Connectivity Of Vent Faunasupporting

confidence: 55%

Vent Fauna on the Central Indian Ridge

Watanabe

Beedessee

2014

Subseafloor Biosphere Linked to Hydrothermal Systems

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In deep-sea hydrothermal vent fields, faunal distribution is associated with the geochemical environments generated by hydrothermal vent activity. Hydrothermal vent fields on the Central Indian Ridge (CIR) are associated with vent fauna which is thought as a mixture of Atlantic and Pacific and are discretely distributed along the ridge axis of more than 1,000 km apart. In this chapter, faunal distribution in hydrothermal vent fields on the CIR is summarized at the intra-and inter-field levels. The species composition of the vent fauna in the four vent fields hitherto known is reviewed and updated, and faunal resemblance among the four vent fields of the CIR appears to reflect the number of species recorded, indicating that faunal surveys are not sufficient in describing the whole vent fauna on the CIR. All the genetic studies of the CIR vent fauna have indicated a high genetic connectivity among the local populations, despite the many potential dispersal barriers existing between the vent fields. On the basis of the spatial distribution of vent species in a vent field, typical vent fields on the CIR were classified into six zones, of which the central two zones are often covered by Rimicaris swarms in the Kairei and Edmond fields. The close relationship between vent fauna from the CIR and the western Pacific, compared to those from other regions, is highlighted. Knowledge of the Indian Ocean vent fauna is limited, and further quantitative information on the biodiversity of vent fauna will provide clues to the formation of biogeographical regions and the dispersal of vent fauna among deep-sea hydrothermal vent fields. Keywords

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Section: Distribution and Connectivity Of Vent Faunasupporting

confidence: 55%

Vent Fauna on the Central Indian Ridge

Watanabe

Beedessee

2014

Subseafloor Biosphere Linked to Hydrothermal Systems

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“…Based on analyses of the COI gene (600 bp), Shank et al (1999) proposed that Chorocaris is a paraphyletic assemblage with C. chacei being more closely related to Rimicaris exoculata than to C. vandoverae. Martin and Shank (2005) Komai and Segonzac (2008) reviewed Chorocaris and Rimicaris, and took a conservative approach by recognizing three species in Chorocaris, namely, C. chacei, C. paulexa and C. vandoverae; these authors maintained the genus despite the possibility of it being paraphyletic. Recently, a new species, Rimicaris hybisae Nye, Copley and Plouviez, 2012, was described from the Mid-Cayman Spreading Centre, in the Caribbean; this species was provisionally referred to Rimicaris, but exhibits some similarities to C. chacei (see Nye et al 2012).…”

Section: Remarksmentioning

confidence: 99%

New records of Alvinocarididae (Crustacea: Decapoda: Caridea) from the southwestern Pacific hydrothermal vents, with descriptions of one new genus and three new species

Komai

Tsuchida

2015

Journal of Natural History

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809

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“…Alvinocaris stactophila belongs to the same family (Alvinocarididae) as shrimp from hydrothermal vents (Komai & Segonzac 2003). Adult Rimicaris exoculata at hydrothermal vents appear to feed on epibiotic chemosynthetic bacteria (Polz et al 1998), but this feature cannot be generalised across the group (Gebruk et al 1993) and there is no evidence that A. stactophila exhibits a similar mode of nutrition (Williams 1988).…”

Section: Introductionmentioning

confidence: 99%

Seasonality and zonation in the reproductive biology and population structure of the shrimp Alvinocaris stactophila (Caridea: Alvinocarididae) at a Louisiana Slope cold seep

Copley¹,

Young²

2006

Mar. Ecol. Prog. Ser.

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Ecological patterns in deep-sea chemosynthetic environments are often considered to be independent of variations in photosynthetic primary production. This study examined spatial and temporal variation in the reproductive development and population structure of the caridean shrimp Alvinocaris stactophila at the Brine Pool cold seep on the Louisiana Slope. To assess spatial variation, samples were collected by submersible from different locations across the Brine Pool mussel bed in November 2003. The proportion of males in samples declined from the outer to the inner zone of the mussel bed, while the proportion of female shrimp carrying eggs increased. This zonation may have resulted from the congregation of large ovigerous females towards the inner zone, where sulphide flux from underlying sediments may be absent or reduced. To examine temporal variation in reproductive development, oocyte size-frequency distributions were compared between August 1997, March 2002, February 2003, November 2003, and July 2004. All oocytes in early spring samples were small and previtellogenic, while summer samples contained larger vitellogenic oocytes. The largest oocytes were found in large non-ovigerous females from the autumn, whereas ovigerous females from the same season contained the smallest oocytes observed in this study. Embryos in the autumn exhibited no differentiation, in contrast to well-developed embryos from early spring that hatched into zoea larvae. These features indicated seasonal and iteroparous reproduction in A. stactophila, with females carrying embryos from autumn to early spring, possibly timing the release of planktotrophic larvae to exploit a seasonal peak in surface productivity and its export.

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Taxonomic Review of the Hydrothermal Vent Shrimp Genera Rimicaris Williams & Rona and Chorocaris Martin & Hessler (Crustacea: Decapoda: Caridea: Alvinocarididae)

Cited by 37 publications

References 20 publications

Vent Fauna on the Central Indian Ridge

Vent Fauna on the Central Indian Ridge

New records of Alvinocarididae (Crustacea: Decapoda: Caridea) from the southwestern Pacific hydrothermal vents, with descriptions of one new genus and three new species

Seasonality and zonation in the reproductive biology and population structure of the shrimp Alvinocaris stactophila (Caridea: Alvinocarididae) at a Louisiana Slope cold seep

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