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Mollusca-Bivalvia of the World Oceans

There are 1583 species of Mollusca-Bivalvia that are commonly found in the World Oceans.

Information on the COI barcoding status of these species is presented in the table below.
MODE
A		 All available COI barcodes for this taxa group (collected from any ocean and/or without geo-referencing):
  • Of the 1583 total species, 1066 of these species (67%) have COI barcodes (from this or any ocean).
  • There are a total of 35340 "any ocean" COI barcode records available for this ocean and taxa group.
  • All available taxa group COI barcodes will be included in the Mode A downloads.
    • MODE
    B    		 Regional COI barcodes for this taxa group (includes only those collected in the World Oceans region):
  • Of the 1583 total species, 1066 of these species (67%) have World Oceans-collected COI barcodes.
  • There are a total of 35340 "World Oceans-collected" COI barcodes available for this taxa group.
  • In the map to the right, Red Stars show sampling locations of the COI barcodes in the Mode B download.
    • Uncoded
    Species    		 Of the 1583 total species in this region, 517 species do not have any COI barcodes (from any region).

     Barcoding progress summary for the World Oceans region, out of a total of 1583 possible species:
    • There are COI barcodes for 1066 species ( 67% coverage ).
      •
    • There are 12S barcodes for 373 species ( 23% coverage ). 
    • There are 16S barcodes for 849 species ( 53% coverage ).
    • There are 18S barcodes for 853 species ( 53% coverage ).
    • There are 28S barcodes for 923 species ( 58% coverage ).
    Change Region   [ World ] [ Arctic ] [ North Atlantic ] [ South Atlantic ] [ Southern Ocean ] [ Indian Ocean ] [ South Pacific ]
    [ North Pacific ] [ Baltic Sea ] [ Mediterranean Sea ] [ Australia subregion ]
    -----> Click here to go back to the Group Summary page. <-----


    Mollusca-Bivalvia of the World Oceans
    MZGdb DATA FILES

    Database-Version:   v2025-m10-01    		 --->   Mode-A   <---

    COI barcodes = 35340
    12S barcodes = 1066
    16S barcodes = 7524
    18S barcodes = 2186
    28S barcodes = 2537
    		 Mode-B

    Not Applicable

    B = A for "world"         		Mode-C

    COI records = 44435
    12S records = 1256
    16S records = 9043
    18S records = 2851
    28S records = 3772
    		 Mode-D

    Not Applicable

    D = C for "world"
    FASTA file (*.fasta) MZGdb fasta (mode-A)
    COI | 12S | 16S | 18S | 28S

    True "barcode" (species-only) data
    from ANY ocean     (mode-A)     		MZGdb fasta (mode-B)
    not applicable     		MZGdb fasta (mode-C)
    COI | 12S | 16S | 18S | 28S

    Genus-spp and species data
    from ANY ocean     (mode-C)     		MZGdb fasta (mode-D)
    not applicable
    Mothur-formatted
    Taxonomic Hierarchy file (*.txt)

    Paired with fasta file above    		 MZGdb Mothur (mode-A)
    COI | 12S | 16S | 18S | 28S

    True "barcode" (species-only) data
    from ANY ocean     (mode-A)     		MZGdb Mothur (mode-B)
    not applicable     		MZGdb Mothur (mode-C)
    COI | 12S | 16S | 18S | 28S

    Genus-spp and species data
    from ANY ocean     (mode-C)     		MZGdb Mothur (mode-D)
    not applicable
    DADA2 file (*.fastq)

    Single "fasta+taxa" DADA2 fastq file    		 MZGdb DADA2 (mode-A)
    COI | 12S | 16S | 18S | 28S

    True "barcode" (species-only) data
    from ANY ocean     (mode-A)     		MZGdb DADA2 (mode-B)
    not applicable     		MZGdb DADA2 (mode-C)
    COI | 12S | 16S | 18S | 28S

    Genus-spp and species data
    from ANY ocean     (mode-C)     		MZGdb DADA2 (mode-D)
    not applicable
    MZGdb v3.0

    "full format"

    go to
    Format Description    		MZGdb CSV (*.csv)

    Excel-friendly full format
    comma-separated-values    		 MZGdb CSV (mode-A)
    COI | 12S | 16S | 18S | 28S

    True "barcode" (species-only) data
    from ANY ocean     (mode-A)     		MZGdb CSV (mode-B)
    not applicable     		MZGdb CSV (mode-C)
    COI | 12S | 16S | 18S | 28S

    Genus-spp and species data
    from ANY ocean     (mode-C)     		MZGdb CSV (mode-D)
    not applicable
    PSV (*.psv)

    pipe-separated-values    		 MZGdb PSV (mode-A)
    COI | 12S | 16S | 18S | 28S

    True "barcode" (species-only) data
    from ANY ocean     (mode-A)     		MZGdb PSV (mode-B)
    not applicable     		MZGdb PSV (mode-C)
    COI | 12S | 16S | 18S | 28S

    Genus-spp and species data
    from ANY ocean     (mode-C)     		MZGdb PSV (mode-D)
    not applicable


    MZGdb Atlas [ database-version = v2025-m10-01 ];   html-date = 2025-Oct-27









    Mon Oct 27 02:10:52 PM EDT 2025