Citation:

14772000.2012.744112

Name: (Table S1) Molecular analyses and morphological comparisons of deep-sea clams
Published: 2012
License: https://creativecommons.org/licenses/by/3.0/

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Abstract:

Large vesicomyid clams are common inhabitants of sulphidic deep-sea habitats such as hydrothermal vents, hydrocarbon seeps and whale-falls. Yet, the species- and genus-level taxonomy of these diverse clams has been unstable due to insufficiencies in sampling and absence of detailed taxonomic studies that would consistently compare molecular and morphological characters. To clarify uncertainties about species-level assignments, we examined DNA sequences from mitochondrial cytochrome-c-oxidase subunit I (COI) in conjunction with morphological characters. New and published COI sequences were used to create a molecular database for 44 unique evolutionary lineages corresponding to species. Overall, the congruence between molecular and morphological characters was good. Several discrepancies due to synonymous species designations were recognized, and acceptable species names were rectified with published COI sequences in cases where morphological specimens were available. We identified seven species with trans-Pacific distributions, and two species with Indo-Pacific distributions. Presently, 27 species have only been documented from one region, which might reflect limited ranges, or insufficient geographical sampling. Vesicomyids exhibit the greatest species diversity along the northwest Pacific ridge systems and in the eastern Pacific, along the western America margin, where depth zonation typically results in segregation of closely related species. The broad distributions of several vesicomyid species suggest that their required chemosynthetic habitats might be more common than previously recognized and occur along most continental margins.

Coverage:

Median Latitude: 32.353502 * Median Longitude: -148.817131 * South-bound Latitude: -18.610000 * West-bound Longitude: 12.380000 * North-bound Latitude: 57.460000 * East-bound Longitude: -44.980000

Minimum ELEVATION: -6370 m a.s.l. * Maximum ELEVATION: 0 m a.s.l.

Comment:

G1: Group-1 (gigas-group) G2: Group-2 (Calyptogena) G3: Group-3 (Abyssogena) G4: Group-4 (paraphyletic)

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Comment
1	Group	Group		Audzijonyte, Asta
2	Taxon/taxa	Taxa		Audzijonyte, Asta
3	Sampling date	Sampling date		Audzijonyte, Asta	Year sampled
4	Habitat	Habitat		Audzijonyte, Asta
5	Cruise/expedition	Expedition		Audzijonyte, Asta	Cruise/Vehicle
6	Sample code/label	Sample label		Audzijonyte, Asta	Dive/sample No.
7	Area/locality	Area		Audzijonyte, Asta	Locality
8	Area/locality	Area		Audzijonyte, Asta	Ridge system or continental margin
9	LATITUDE	Latitude			Geocode
10	LONGITUDE	Longitude			Geocode
11	ELEVATION	Elevation	m a.s.l.		Geocode
12	Elevation 2	Elev2	m a.s.l.	Audzijonyte, Asta	to
13	Number of mitochondrial cytochrome-c-oxidase subunit I sequences	No COI seq		Audzijonyte, Asta	No. COI sequences examined in this study
14	Accession number	Access No		Audzijonyte, Asta	Sequences in the reference database
15	Species	Species		Audzijonyte, Asta	Specimens studied for morphology
16	Morphology	Morphology		Audzijonyte, Asta	Morphological diagnosis
17	Accession number	Access No		Audzijonyte, Asta	Previously published COI sequences and identification used

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

2463 data points

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