Aequiyoldia eightsii

(Jay, 1839) · species

image placeholder — illustration coming later

Animalia/Mollusca/Bivalvia/Nuculanida/Sareptidae/Aequiyoldia

At a glance

Occurrence records352

Data sources6

Biological traits6

DNA specimens266

eDNA detections311

Sources6 archives

Databases and archives Aequiyoldia eightsii's data was compiled from.

BioWikiNetmultilingual Wikipediamultilingual↗

GBIFGlobal Biodiversity Information Facility187 records↗

OBISOcean Biodiversity Information System165 records↗

ENAEuropean Nucleotide Archive · EMBL-EBI311 eDNA detections↗

BOLD SystemsCentre for Biodiversity Genomics266 specimens↗

Open Tree of LifeOpenTreephylogeny backbone↗

On this page5 sections

Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.

NarrativeWikipediaarticle

Traits & measurements1 literature sources6 traits

Occurrence & distributionGBIF · OBIS352 records

Environmental DNA1 datasets · 2 countries311 detections

DNA & barcodingBOLD266 specimens

01Narrative

Yoldia woodwardi is een tweekleppigensoort uit de familie van de Yoldiidae. De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 1860 door Hanley.

No narrative description available for this taxon yet.

02Traits & measurements

SourcesSeaLifeBase

Size & morphology1

Body length3 cm

Habitat & environment2

Habitat saltwateryes

Habitat zonebenthic

Other traits3

Depth max380 m

Depth min36 m

Vulnerability59.74

05DNA & barcoding266 specimens

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 Aequiyoldia eightsii has left across the world's sequence archives.

At a glance

DNA specimens266

BINs3

Marker genes3

eDNA detections311

Countries2

The DNA barcodethe species' typical barcode, built from every sequenced specimen

COI-5P640 bp consensus193 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. 92% of positions are identical in every specimen.

Where individuals differ — all 54 variable positions, in barcode order

1Avariable

4Amostly conserved

22Gvariable

25Gvariable

42Tvariable

49Tvariable

68Avariable

70Gvariable

80Tvariable

88Avariable

118Tvariable

145Avariable

160Tvariable

163Gvariable

193Avariable

205Tvariable

217Cvariable

220Gvariable

244Gvariable

262Avariable

292Tvariable

295Tvariable

301Gmostly conserved

319Gvariable

322Cvariable

325Cvariable

328Cvariable

329Cvariable

340Gmostly conserved

349Tvariable

352Gvariable

382Tvariable

385Cvariable

388Tmostly conserved

403Avariable

415Avariable

424Tmostly conserved

433Tmostly conserved

439Gvariable

451Gvariable

460Tvariable

472Gvariable

481Gvariable

490Avariable

514Gvariable

520Amostly conserved

544Gvariable

550Avariable

560Tmostly conserved

568Avariable

586Avariable

596Gvariable

598Cvariable

616Cvariable

AGGAATATGGTCTGGTTTAGTGGGGACTTCGTTAAGATTGGTAATTCGTATACATCTTCGTATACCTAGGAGACAGATTTTAAGAAGACA …

Variant network

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.

Diversity (π)3.6%

Haplotypes15

BINs3

Most divergent pair8.8%

Other

Marker genes sequenced

★ 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-5P18S-3P18S-5P

animal barcoderibosomal

08Occurrence & distribution

Record type352 records

Wild obs. + sensor183

Museum / vouchered166

Other3

Range

Area of Occupancy AOO544 km²

Depth

0–200 m sunlit97

200–1000 m twilight30

1–4 km midnight1

>4 km abyssal0

median 53.5 m · max 2 315 m · 128 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 accuracy80% within 1 km

≤100 m 3≤1 km 1≤10 km 1

5 georeferenced · 178 without coordinates

Open the mapobservation + sensor183

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 accuracy83% within 1 km

≤100 m 21≤1 km 3≤10 km 2>10 km 3

29 georeferenced · 137 without coordinates

Open the institutions mapphysical evidence166

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 institutions4 of 16 geolocated

Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.

Institution	Specimens
Montgomery, US	13
UMAGlocation not on record	8
Universidad Austral de Chilelocation not on record	7
Sydney, AU	5
Cambridge, US	3
Université de Liègelocation not on record	3
British Antarctic Surveylocation not on record	3
DOI/NPS, Salem Maritime National Historic Sitelocation not on record	2
Earth Sciences New Zealandlocation not on record	1
Florida Museum of Natural History- Zoology, Paleontology & Paleobotanylocation not on record	1
Denver, US	1
Santa Barbara Museum of Natural Historylocation not on record	1
Universidad Católica del Nortelocation not on record	1
Museo nazionale dell'Antartidelocation not on record	1
BASElocation not on record	1
Western Australian Museumlocation not on record	1

16 institutions · 52 of 166 vouchered records shown · 39 without an institution code

09Environmental DNA311 detections

Where the DNA of Aequiyoldia eightsii 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 found311

Studies independent surveys1

Countries2

Signal confidence: weakweighed across independent studies, places & mapped detections

Where its DNA was found

0 of 311 detections have coordinates

Open the map2 countries0

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 median-3.70 °C -6.90–7.00

Seasonal swing summer↔winter11.1 °C

Max temp (day)-2.30 °C -5.10–9.00

Min temp (night)-5.60 °C -8.90–5.50

Precipitation109 mm/mo 28.7–188

Air humidity64.4 % 58.9–70.3

Vapour deficit171 Pa 124–425

Cloud cover57.0 % 29.6–61.5

CHELSA 1981–2010, ~9 km grid, at location & month of 41 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.

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