Glover AG et al. (2016), Abyssal fauna of the UK-1 polymetallic nodule e...

ECB-ART-48268

Biodivers Data J 2016 Jan 25;4:e7251. doi: 10.3897/BDJ.4.e7251.

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Abyssal fauna of the UK-1 polymetallic nodule exploration claim, Clarion-Clipperton Zone, central Pacific Ocean: Echinodermata.

Glover AG , Wiklund H , Rabone M , Amon DJ , Smith CR , O'Hara T , Mah CL , Dahlgren TG .

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We present data from a DNA taxonomy register of the abyssal benthic Echinodermata collected as part of the Abyssal Baseline (ABYSSLINE) environmental survey cruise ''AB01'' to the UK Seabed Resources Ltd (UKSRL) polymetallic-nodule exploration claim ''UK-1'' in the eastern Clarion-Clipperton Zone (CCZ), central Pacific Ocean abyssal plain. Morphological and genetic data are presented for 17 species (4 Asteroidea, 4 Crinoidea, 2 Holothuroidea and 7 Ophiuroidea) identified by a combination of morphological and genetic data. No taxa matched previously published genetic sequences, but 8 taxa could be assigned to previously-described species based on morphology, although here we have used a precautionary approach in taxon assignments to avoid over-estimating species ranges. The Clarion-Clipperton Zone is a region undergoing intense exploration for potential deep-sea mineral extraction. We present these data to facilitate future taxonomic and environmental impact study by making both data and voucher materials available through curated and accessible biological collections.

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Genes referenced: impact LOC100887844 LOC583082 LOC757115

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References [+] :

Carr, A tri-oceanic perspective: DNA barcoding reveals geographic structure and cryptic diversity in Canadian polychaetes. 2011, Pubmed

	Figure 1. The Clarion-Clipperton Zone, central Pacific Ocean (purple box) is a 6 milllion km2 region at the time of writing containing only 290 online-databased records of echinoderm species (OBIS 2015). The UK Seabed Resources Ltd â€˜UK-1â€™ polymetallic nodule exploration claim area is highlighted (yellow box).
	Figure 2. 'UK-1 Stratum A' ABYSSLINE biological baseline survey box sited within the UK-1 polymetallic nodule exploration claim. Stratum A is a 30x30km survey box in the northern sector of the 58,000 km2 claim area. Echinoderm sample localities are indicated by green circles from the AB01 RV Melville survey cruise, October 2013. Inset map A: the site location within the central Pacific, inset map B: all the echinoderm sampling locations (including site 'ROV7' to the west). Both inset maps use GEBCO 2014 bathymetry (global 30 arc-second interval grid data set). Seafloor bathymetry from the RV Melville ABYSSLINE cruise is shown in the main map.

	Figure 4. Data and sample management workflow on the ABYSSLINE DNA taxonomy project. Processes relating to a) physical samples are shown in grey, b) institution level data in dark green and c) externally-available data in blue.
	Figure 5. Phylogenetic analysis of the Asteroidea. 50% majority rule consensus tree from the Bayesian analyses, combining the three genes 18S, 16S and COI and using in total 60 taxa. Some of the clades are collapsed in order to make the tree smaller and easier to read.
	Figure 6. Phylogenetic analysis of the Crinoidea. 50% majority rule consensus tree from the Bayesian analyses, combining the three genes 18S, 16S and COI and using in total 113 taxa. Some of the clades are collapsed in order to make the tree smaller and easier to read.
	Figure 7. Phylogenetic analysis of the Holothuroidea. 50% majority rule consensus tree from the Bayesian analyses, using 16S and in total 115 taxa. Some of the clades are collapsed in order to make the tree smaller and easier to read.
	Figure 8. Phylogenetic analysis of the Ophiuroidea. 50% majority rule consensus tree from the Bayesian analyses, combining the three genes 18S, 16S and COI and using in total 79 taxa. Some of the clades are collapsed in order to make the tree smaller and easier to read.