Submarine ridges do not prevent large-scale dispersal of abyssal fauna: A case study of Mesocletodes (Crustacea, Copepoda, Harpacticoida)

Menzel, L.; George, Kai Horst; Arbizu, Pedro Martínez

doi:10.1016/j.dsr.2011.05.008

Cited by 59 publications

(50 citation statements)

References 83 publications

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“…Broad spatial distributions are reported among small-sized eukaryotic taxa such as rotaliid foraminifera (Pawlowski et al, 2007;Gooday and Jorissen, 2012), nematodes (Vanreusel et al, 2010;Zeppilli et al, 2011), and harpacticoid copepods (Menzel et al, 2011), as well as certain macrofaunal and megafaunal taxa (Sibuet, 1979;Allen, 2008). However, in some cases, detailed morphological and/or molecular re-examination of putative cosmopolitan species resulted in the recognition of cryptic species having much smaller distribution ranges (Moura et al, 2008;Brandão and Yasuhara, 2013;Krapp-Schickel and De Broyer, 2014;Yasuhara et al, 2014).…”

Section: Biogeographic Patternsmentioning

confidence: 99%

Worldwide Analysis of Sedimentary DNA Reveals Major Gaps in Taxonomic Knowledge of Deep-Sea Benthos

et al. 2016

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Deep-sea sediments represent the largest but least known ecosystem on earth. With increasing anthropogenic pressure, it is now a matter of urgency to improve our understanding of deep-sea biodiversity. Traditional morpho-taxonomic studies suggest that the ocean floor hosts extraordinarily diverse benthic communities. However, due to both its remoteness and a lack of expert taxonomists, assessing deep-sea diversity is a very challenging task. Environmental DNA (eDNA) metabarcoding offers a powerful tool to complement morpho-taxonomic studies. Here we use eDNA to assess benthic metazoan diversity in 39 deep-sea sediment samples from bathyal and abyssal depths worldwide. The eDNA dataset was dominated by meiobenthic taxa and we identified all animal phyla commonly found in the deep-sea benthos; yet, the diversity within these phyla remains largely unknown. The large numbers of taxonomically unassigned molecular operational taxonomic units (OTUs) were not equally distributed among phyla, with nematodes and platyhelminthes being the most poorly characterized from a taxonomic perspective. While the data obtained here reveal pronounced heterogeneity and vast amounts of unknown biodiversity in the deep sea, they also expose the difficulties in exploiting metabarcoding datasets resulting from the lack of taxonomic knowledge and appropriate reference databases. Overall, our study demonstrates the promising potential of eDNA metabarcoding to accelerate the assessment of deep-sea biodiversity for pure and applied deep-sea environmental research but also emphasizes the necessity to integrate such new approaches with traditional morphology-based examination of deep-sea organisms.

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Section: Biogeographic Patternsmentioning

confidence: 99%

Worldwide Analysis of Sedimentary DNA Reveals Major Gaps in Taxonomic Knowledge of Deep-Sea Benthos

et al. 2016

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“…George and Tiltack 2009, Handschuhmacher et al 2010, Menzel et al 2011, they often cause certain scepticism if looking at the species level. In particular, since molecular methods have been employed for taxonomic, systematic and biogeographic (= phylogeographic) research (e.g.…”

Section: Key To Species Of Paralaophontodes (Females)mentioning

confidence: 99%

Phylogeny of the taxon Paralaophontodes Lang (Copepoda, Harpacticoida, Laophontodinae), including species descriptions, chorological remarks, and a key to species

George¹

2017

ZSE

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A detailed phylogenetic analysis of the taxon Paralaophontodes Lang (Copepoda, Harpacticoida, Laophontodinae Lang) based on morphological characters is presented. The monophylum Paralaophontodes is supported by 16 unambiguous autapomorphies such as the presence of characteristic dorsal processes on cephalothorax and body somites, a 5-segmented male antennule, the loss of the syncoxal seta on the maxilliped, and the endopodal strengthening of the first swimming leg. The corresponding extensive phylogenetic evaluation includes the description of Paralaophontodes anjae sp. n. from a beach on Chiloé Island (Chile), the re-description of Laophontodes armatus Lang, and the re-establishment of Paralaophontodes robustus (Bŏzić), the displacement of Laophontodes armatus, L. hedgpethi Lang and L. psammophilus Soyer to Paralaophontodes, a discussion on relationships within that taxon, remarks on its geographical distribution, and a key to the species.

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“…The great amount of material obtained, for example, during the DIVA, ANDEEP and CROZEX expeditions carried out during the international CeDAMar program provided the first opportunities for biogeographical studies of benthic deep-sea copepods (Gheerardyn and Veit-Köhler 2009;Menzel 2011;Menzel et al 2011). …”

Section: Biogeography and Individual Densitymentioning

confidence: 99%

“…Increased attention on the study of the diversity and biogeography of benthic deep-sea copepods has been witnessed during the last few years (Gheerardyn and Veit-Köhler 2009;Menzel 2011;Menzel et al 2011). Nevertheless, only 10 species of the harpacticoid family Paramesochridae have been described from depths below 200 m until now (Becker 1979;Drzycimski 1967;Lang 1936Lang , 1948Plum and George 2009;Vasconcelos et al 2009;Veit-Köhler 2004, 2005Veit-Köhler and Drewes 2009).…”

Section: Introductionmentioning

confidence: 99%

A new species of Wellsopsyllus (Copepoda, Harpacticoida, Paramesochridae) from the deep Southern Ocean and remarks on its biogeography

et al. 2012

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Submarine ridges do not prevent large-scale dispersal of abyssal fauna: A case study of Mesocletodes (Crustacea, Copepoda, Harpacticoida)

Cited by 59 publications

References 83 publications

Worldwide Analysis of Sedimentary DNA Reveals Major Gaps in Taxonomic Knowledge of Deep-Sea Benthos

Worldwide Analysis of Sedimentary DNA Reveals Major Gaps in Taxonomic Knowledge of Deep-Sea Benthos

Phylogeny of the taxon Paralaophontodes Lang (Copepoda, Harpacticoida, Laophontodinae), including species descriptions, chorological remarks, and a key to species

A new species of Wellsopsyllus (Copepoda, Harpacticoida, Paramesochridae) from the deep Southern Ocean and remarks on its biogeography

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