A DNA barcode is a short, standardised stretch of genes that works like a fingerprint — enough to tell one species from another. Below is the molecular trace Scrobicularia plana has left across the world's sequence archives.
At a glance
DNA specimens87
BINs2
Marker genes2
eDNA detections87
Countries5
The DNA barcodethe species' typical barcode, built from every sequenced specimen
COI-5P507 bp consensus81 specimens
ACGT
▸ drag or hover over the strip to read any position — letter and how much it varies
Violet ticks below the strip = positions where individuals differ; flat = the species' unchanging signature. 100% of positions are identical in every specimen.
Where individuals differ — all 2 variable positions, in barcode order
Each circle is a barcode variant; bigger = more specimens, colour = region. Lines join the most similar variants and the tick marks count the mutations between them — a tight cluster is one “dialect”, a long line a more divergent lineage. Click a circle to list its actual specimens. Showing the 28 commonest of 60 variants.
Diversity (π)0.71%
Haplotypes60
BIN1
Most divergent pair1.4%
EuropeOther
Closest relatives by DNA barcode
The species whose COI barcode is most similar to this one — a quick “who is this most like”. The percentage is how much the barcode differs; it approximates, but is not, the full evolutionary tree.
★ the standard DNA barcode for this group — the short region actually read to tell this species apart. The rest are extra genes sequenced along the way.
★COI-3P★COI-5P
animal barcode
08Occurrence & distribution
Record type36 719 records
Wild obs. + sensor19 324
Museum / vouchered6 622
Fossil27
Other10 746
Range
Area of Occupancy AOO12 148 km²
Depth
0–200 m sunlit3 309
200–1000 m twilight0
1–4 km midnight0
>4 km abyssal0
median 0.2 m · max 89.5 m · 3 309 records with depth
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Coordinate accuracy73% within 1 km
≤100 m 7 157≤1 km 387≤10 km 2 733>10 km 29
10 306 georeferenced · 9 018 without coordinates
Open the mapobservation + sensor19 324
Museum / Voucheredphysical evidence
Backed by a physical specimen — a herbarium sheet, sample or voucher held in a collection. “Vouchered” means supported by material evidence, not just an observation.
Coordinate accuracy63% within 1 km
≤100 m 87≤1 km 98≤10 km 63>10 km 44
292 georeferenced · 6 330 without coordinates
Open the institutions mapphysical evidence6 622
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
10Collections & institutions
Holding institutions15 of 55 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
Institution
Specimens
RWSlocation not on record
1 769
630location not on record
961
730location not on record
503
Institut Francais pour l'Etude de la Merlocation not on record
318
486location not on record
123
Natural History Museum Rotterdamlocation not on record
85
Stockholm, SE
71
DASSHlocation not on record
68
Laboratoire d'Océanographie Biologique, Universite de Bordeaxlocation not on record
40
Istituto Superiore per la Protezione e la Ricerca Ambientalelocation not on record
39
RUGlocation not on record
28
RBINS-Scientific Heritagelocation not on record
27
WMR_IMARESlocation not on record
24
NTNU-VMlocation not on record
24
MHN-UPlocation not on record
23
Cambridge, US
17
PNHSlocation not on record
15
CEFASlocation not on record
13
Brussels, BE
12
MZLUlocation not on record
11
Christian-Albrechts-University Kiel; Leibniz Institute of Marine Sciences; Marine Ecology Division; Fishery Biology sectionlocation not on record
10
Gothenburg, SE
8
UGentlocation not on record
8
CZULElocation not on record
6
Frankfurt am Main
5
Provincia di Livornolocation not on record
4
SLU Artdatabankenlocation not on record
4
South Kensington, GB
4
Delaware Museum of Nature and Sciencelocation not on record
4
Philadelphia, US
3
SNSDlocation not on record
3
Paleontological Research Institutionlocation not on record
2
Natural History Museum of Utahlocation not on record
2
Paris, FR
2
Toronto, CA
2
Chicago, US
2
Bourges, FR
1
Chongqing Museumlocation not on record
1
Washington, US
1
CSIC-CEAB Centre for Advanced Studies of Blanes (1393) Eco laboratory geochemistry Benthic Environments UMR 8222 (4503) Université de Liège Underwater research and oceanographic station (4501)location not on record
1
CSIC-CEAB Centre for Advanced Studies of Blanes (1393)location not on record
1
DIHOlocation not on record
1
Natural History Museum of the Iberian Peninsula - NatMIP ("Museu de História Natural da Península Ibérica")location not on record
1
Natural History Museum, Londonlocation not on record
1
Dipartimento di Scienze della vita e dell'ambiente dell'Università Politecnica delle Marche | Department of Life and Environmental Sciences of the Marche Polytechnic Universitylocation not on record
1
Santa Barbara Museum of Natural Historylocation not on record
1
IEO-COMA-CSIClocation not on record
1
Denver, US
1
CSIC-CEAB Centre for Advanced Studies of Blanes (1393) Eco laboratory geochemistry Benthic Environments UMR 8222 (4503)location not on record
1
Senckenberg am Meer Wilhelmshaven, Department German Centre for Marine Biodiversity Researchlocation not on record
1
Salzburg, AT
1
IfAÖ- Institut für Angewandte Ökosystemforschung GmbHlocation not on record
1
Champaign, US
1
neflocation not on record
1
Museo Enrico Pirajno di Mandralisca | Enrico Pirajno di Mandralisca Museumlocation not on record
1
55 institutions · 4 259 of 6 622 vouchered records shown · 50 without an institution code
09Environmental DNA87 detections
Where the DNA of Scrobicularia plana was picked up in samples of water, soil or air — nobody saw the organism, only its DNA left behind. A trace is a clue that the species was near, not a confirmed sighting.
Signal
Detections DNA found87
Studies independent surveys2
Countries5
Verifiable raw sequence linked1
Signal confidence: moderateweighed across independent studies, places & mapped detections
Where its DNA was found
0 of 87 detections have coordinates
Open the map5 countries0
mudMudMixed mud and bolders
How strong is each trace?
DNA read depthRead counts were not reported for this species — the map shows presence only, not how strong each trace was.
Modelled climatemodelled
−15°Ctemperature across detection sites+40°C
Temperature median16.0 °C 11.5–17.1
Seasonal swing summer↔winter11.1 °C
Max temp (day)17.9 °C 13.8–21.2
Min temp (night)13.0 °C 8.20–15.4
Precipitation85.3 mm/mo 46.0–93.1
Air humidity62.6 % 59.0–64.1
Moisture balance-41.5 mm/mo -95.2–27.2
Vapour deficit657 Pa 482–799
Wind speed3.80 m/s 3.10–6.70
Cloud cover43.3 % 36.6–50.8
CHELSA 1981–2010, ~9 km grid, at location & month of 13 detection points · median with p10–p90 · reflects where sampling happened, not only the true niche
How to read this: each dot is one detection of this species' DNA in an environmental sample. The confidence meter weighs how many independent studies and places back up the signal — one detection in one study is a hint; many across several studies is solid. Records dated before 2008 (when eDNA methods began) are treated as likely mislabeled and left off the map.
WikipediaWikimedia Foundation5 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility18 772 records↗
OBISOcean Biodiversity Information System17 947 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI87 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics87 specimens↗
Open Tree of LifeOpenTreephylogeny backbone↗
Catalogue of LifeCOLtaxonomy↗