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Chaetognatha of the North-Sea

There are 8 species of Chaetognatha that are commonly found in the North-Sea.

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 8 total species, 6 of these species (75%) have COI barcodes (from this or any ocean).
  • There are a total of 743 "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 North-Sea region):
  • Of the 8 total species, 0 of these species (0%) have North-Sea-collected COI barcodes.
  • There are a total of 0 "North-Sea-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 8 total species in this region, 2 species do not have any COI barcodes (from any region).

     Barcoding progress summary for the North-Sea region, out of a total of 8 possible species:
    • There are COI barcodes for 6 species ( 75% coverage ), of which 0 species have barcodes sampled inside this region ( 0% coverage ).
      •
    • There are 12S barcodes for 3 species ( 37% coverage ), of which 1 species have barcodes sampled inside this region ( 12% coverage ). 
    • There are 16S barcodes for 4 species ( 50% coverage ), of which 1 species have barcodes sampled inside this region ( 12% coverage ).
    • There are 18S barcodes for 8 species ( 100% coverage ), of which 1 species have barcodes sampled inside this region ( 12% coverage ).
    • There are 28S barcodes for 8 species ( 100% coverage ), of which 1 species have barcodes sampled inside this region ( 12% coverage ).
    MZGdb Data Download Options
    ---> CLICK HERE <---


    Change Region   [ ICES North Atlantic ] [ Baltic Sea ] [ Mediterranean Sea ]
          [ ICES western North Atlantic ] [ US-NE-LME ] [ CA-Scotian ] [ CA-GSL ] [ CA-Newfoundland-shelf ]
          [ ICES eastern North Atlantic ] [ Icelandic-Waters ] [ Faroe-Islands ] [ Norwegian-Sea ] [ Barents-Sea ] [ Celtic-Seas ] [ North-Sea ] [ Iberian-Shelf ]
    Table Viewing Options   [ Species-only Summary, sorted by name (default) ]   or   [ Full Taxonomic Hierarchy ]   or   [ flat-text file of sorted species names ]


    Chaetognatha of the North-Sea
    Taxa Name

    		Taxa
    Level    		Barcode
    Data?    		Number of
    Barcodes
    from
    any ocean    		Number of
    Barcodes
    from this region    		Barcode Locations and
    Species Occurence Map    		MZGdb Atlas
    v2025-m10-01

    2025-Oct-27
    Chaetognatha Phylum cummulative
    sub-totals
    ------->
    for this
    Phylum    		 Total Species:   8
    Sp. w/COI-Barcodes:  6

    Total COI-Barcodes:   743    		 Total Species:   8
    Sp. w/COI-Barcodes:  2

    Total COI-Barcodes:   153    		 accepted
    T4000017

    R:1:0:0:0
    ⋄   Sagittoidea Class cummulative
    sub-totals
    ------->
    for this
    Class    		 Total Species:   8
    Sp. w/COI-Barcodes:  6

    Total COI-Barcodes:   743    		 Total Species:   8
    Sp. w/COI-Barcodes:  2

    Total COI-Barcodes:   153    		 accepted
    T4003732

    R:1:0:0:0
    ⋄   ⋄   Aphragmophora Order cummulative
    sub-totals
    ------->
    for this
    Order    		 Total Species:   6
    Sp. w/COI-Barcodes:  4

    Total COI-Barcodes:   255    		 Total Species:   6
    Sp. w/COI-Barcodes:  2

    Total COI-Barcodes:   153    		 accepted
    T4023063

    R:1:0:0:0
    ⋄   ⋄   ⋄   Sagittidae Family cummulative
    sub-totals
    ------->
    for this
    Family    		 Total Species:   6
    Sp. w/COI-Barcodes:  4

    Total COI-Barcodes:   255    		 Total Species:   6
    Sp. w/COI-Barcodes:  2

    Total COI-Barcodes:   153    		 accepted
    T4002269

    R:1:0:0:0
    ⋄   ⋄   ⋄   ⋄   Flaccisagitta Genus cummulative
    sub-totals
    ------->
    for this
    Genus    		 Total Species:   1
    Sp. w/COI-Barcodes:  1

    Total COI-Barcodes:   8    		 Total Species:   1
    Sp. w/COI-Barcodes:  0

    Total COI-Barcodes:   0    		 accepted
    T4002264

    R:1:0:0:0
    ⋄   ⋄   ⋄   ⋄   ⋄   Flaccisagitta hexaptera Species
    (1)    		 COI
    12S
    16S
    18S
    28S
    		   COI = 8
      12S = 0
      16S = 0
      18S = 8
      28S = 1
    		   COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
    		 accepted
    T4000848

    R:1:0:0:0
    ⋄   ⋄   ⋄   ⋄   Mesosagitta Genus cummulative
    sub-totals
    ------->
    for this
    Genus    		 Total Species:   1
    Sp. w/COI-Barcodes:  0

    Total COI-Barcodes:   0    		 Total Species:   1
    Sp. w/COI-Barcodes:  0

    Total COI-Barcodes:   0    		 accepted
    T4002265

    R:1:0:0:0
    ⋄   ⋄   ⋄   ⋄   ⋄   Mesosagitta minima Species
    (2)    		 COI
    12S
    16S
    18S
    28S
    		   COI = 0
      12S = 0
      16S = 0
      18S = 4
      28S = 2
    		   COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
    		 accepted
    T4000852

    R:1:0:0:0
    ⋄   ⋄   ⋄   ⋄   Parasagitta Genus cummulative
    sub-totals
    ------->
    for this
    Genus    		 Total Species:   2
    Sp. w/COI-Barcodes:  2

    Total COI-Barcodes:   242    		 Total Species:   2
    Sp. w/COI-Barcodes:  2

    Total COI-Barcodes:   153    		 accepted
    T4002266

    R:1:0:0:0
    ⋄   ⋄   ⋄   ⋄   ⋄   Parasagitta elegans Species
    (3)    		 COI
    12S
    16S
    18S
    28S
    		   COI = 222
      12S = 32
      16S = 32
      18S = 32
      28S = 31
    		   COI = 139
      12S = 32
      16S = 32
      18S = 24
      28S = 27
    		 accepted
    T4000117

    R:1:0:0:0
    ⋄   ⋄   ⋄   ⋄   ⋄   Parasagitta setosa Species
    (4)    		 COI
    12S
    16S
    18S
    28S
    		   COI = 20
      12S = 11
      16S = 12
      18S = 24
      28S = 23
    		   COI = 14
      12S = 11
      16S = 12
      18S = 20
      28S = 20
    		 accepted
    T4003600

    R:1:0:0:0
    ⋄   ⋄   ⋄   ⋄   Sagitta Genus cummulative
    sub-totals
    ------->
    for this
    Genus    		 Total Species:   1
    Sp. w/COI-Barcodes:  1

    Total COI-Barcodes:   5    		 Total Species:   1
    Sp. w/COI-Barcodes:  0

    Total COI-Barcodes:   0    		 accepted
    T4000006

    R:1:0:0:0
    ⋄   ⋄   ⋄   ⋄   ⋄   Sagitta bipunctata Species
    (5)    		 COI
    12S
    16S
    18S
    28S
    		   COI = 5
      12S = 0
      16S = 0
      18S = 3
      28S = 3
    		   COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
    		 accepted
    T4000836

    R:1:0:0:0
    ⋄   ⋄   ⋄   ⋄   Serratosagitta Genus cummulative
    sub-totals
    ------->
    for this
    Genus    		 Total Species:   1
    Sp. w/COI-Barcodes:  0

    Total COI-Barcodes:   0    		 Total Species:   1
    Sp. w/COI-Barcodes:  0

    Total COI-Barcodes:   0    		 accepted
    T4002268

    R:1:0:0:0
    ⋄   ⋄   ⋄   ⋄   ⋄   Serratosagitta serratodentata Species
    (6)    		 COI
    12S
    16S
    18S
    28S
    		   COI = 0
      12S = 0
      16S = 0
      18S = 6
      28S = 2
    		   COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
    		 accepted
    T4000731

    R:1:0:0:0
    ⋄   ⋄   Phragmophora Order cummulative
    sub-totals
    ------->
    for this
    Order    		 Total Species:   2
    Sp. w/COI-Barcodes:  2

    Total COI-Barcodes:   488    		 Total Species:   2
    Sp. w/COI-Barcodes:  0

    Total COI-Barcodes:   0    		 accepted
    T4023064

    R:1:0:0:0
    ⋄   ⋄   ⋄   Eukrohniidae Family cummulative
    sub-totals
    ------->
    for this
    Family    		 Total Species:   1
    Sp. w/COI-Barcodes:  1

    Total COI-Barcodes:   437    		 Total Species:   1
    Sp. w/COI-Barcodes:  0

    Total COI-Barcodes:   0    		 accepted
    T4002270

    R:1:0:0:0
    ⋄   ⋄   ⋄   ⋄   Eukrohnia Genus cummulative
    sub-totals
    ------->
    for this
    Genus    		 Total Species:   1
    Sp. w/COI-Barcodes:  1

    Total COI-Barcodes:   437    		 Total Species:   1
    Sp. w/COI-Barcodes:  0

    Total COI-Barcodes:   0    		 accepted
    T4001114

    R:1:0:0:0
    ⋄   ⋄   ⋄   ⋄   ⋄   Eukrohnia hamata Species
    (7)    		 COI
    12S
    16S
    18S
    28S
    		   COI = 437
      12S = 0
      16S = 1
      18S = 2
      28S = 2
    		   COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
    		 accepted
    T4000040

    R:1:0:0:0
    ⋄   ⋄   ⋄   Spadellidae Family cummulative
    sub-totals
    ------->
    for this
    Family    		 Total Species:   1
    Sp. w/COI-Barcodes:  1

    Total COI-Barcodes:   51    		 Total Species:   1
    Sp. w/COI-Barcodes:  0

    Total COI-Barcodes:   0    		 accepted
    T4003314

    R:1:0:0:0
    ⋄   ⋄   ⋄   ⋄   Spadella Genus cummulative
    sub-totals
    ------->
    for this
    Genus    		 Total Species:   1
    Sp. w/COI-Barcodes:  1

    Total COI-Barcodes:   51    		 Total Species:   1
    Sp. w/COI-Barcodes:  0

    Total COI-Barcodes:   0    		 accepted
    T4003315

    R:1:0:0:0
    ⋄   ⋄   ⋄   ⋄   ⋄   Spadella cephaloptera Species
    (8)    		 COI
    12S
    16S
    18S
    28S
    		   COI = 51
      12S = 6
      16S = 36
      18S = 11
      28S = 3
    		   COI = 0
      12S = 0
      16S = 0
      18S = 0
      28S = 0
    		 accepted
    T4003316

    R:1:0:0:0
    MZGdb Atlas [ database-version = v2025-m10-01 ];   html-date = 2025-Oct-27









    Mon Oct 27 02:21:07 PM EDT 2025