Eriocheir sinensis
H.Milne Edwards, 1853 · speciesAt a glance
Sources11 archives
Databases and archives Eriocheir sinensis's data was compiled from.
WikipediaWikimedia Foundation15 languages↗
BioWikiNetmultilingual Wikipediamultilingual↗
GBIFGlobal Biodiversity Information Facility25 738 records↗
OBISOcean Biodiversity Information System2 399 records↗
ENAEuropean Nucleotide Archive · EMBL-EBI291 eDNA detections↗
BOLD SystemsCentre for Biodiversity Genomics305 specimens↗
NPASSNat. Product Activity & Species Sourcecompounds↗
Open Tree of LifeOpenTreephylogeny backbone↗
GoaTGenomes on a Tree · Sangergenome & karyotype↗
NCBIUS National Library of Medicinegenome & karyotype↗
GLoBIGlobal Biotic Interactionsbiotic interactions↗Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.
The Chinese mitten crab ('; , "big sluice crab"), also known as the Shanghai hairy crab (, p Shànghǎi máoxiè), is a medium-sized burrowing crab that is named for its furry claws, which resemble mittens. It is native to rivers, estuaries and other coastal habitats of East Asia from Korea in the north to Fujian, China in the south. It has also been introduced to Europe and North America, where it is considered an invasive species. The species features on the list of invasive alien species of Union concern. This means that import of the species and trade in the species is forbidden in the whole of the European Union.
No narrative description available for this taxon yet.
Size & morphology1
Habitat & environment4
Uses & economy1
Other traits3
Compounds documented for Eriocheir sinensis across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").
Compound class profile5 classes
Documented compounds66 total
| Compound | Class | Amount | Source |
|---|---|---|---|
| (2S,3R,4S,5S,6R)-2-{5-[(1E)-2-(3,5-Dihydroxyphenyl)ethenyl]-2-hydroxyphenoxy}-6-(hydroxymethyl)oxane-3,4,5-triol | present | NPASS | |
| (E)-Resveratrol 3-(6''-Galloyl)-O-Beta-D-Glucopyranoside | present | NPASS | |
| (E)-Resveratrol 3-glucoside | present | NPASS | |
| (Z)-Resveratrol | present | NPASS | |
| (Z)-Resveratrol 3-glucoside | present | NPASS | |
| 2,3,5,4'-Tetrahydroxystilbene 2-O-beta-D-glucoside | present | NPASS | |
| 2,5-Dimethyl-7-Hydroxychromone | present | NPASS | |
| 2,6-Dihydroxybenzoic acid | present | NPASS | |
| 2-Methoxystypandrone | present | NPASS | |
| 7-Hydroxy-4-methoxy-5-methylchromen-2-one | present | NPASS |
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 Eriocheir sinensis has left across the world's sequence archives.
At a glance
★ 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.
Besides the big genome in the nucleus, cells carry a small, circular loop of DNA inside the cell's energy factories — the mitochondria. It is inherited almost only from the mother and is a leftover from ancient bacteria that moved into the cell. The mitochondrial markers above (ND*, COX, CYTB…) are read from exactly this loop. Outer ring = one strand, inner ring = the other.
The complete instruction manual Eriocheir sinensis carries — its genome. We read it from three angles — how big it is, how the DNA is packed into chromosomes, and how completely it has been sequenced — and explain how to read each value as you go.
Genome sizehow big the whole instruction manual is
Measured in base pairs (bp) — the individual letters of DNA (human ≈ 3.2 Gb, a bacterium a few million). The chart places this genome on a logarithmic scale — each step to the right is ten times bigger — among reference organisms. Across species a bigger genome loosely tracks with larger cells, slower growth and lower-energy lifestyles (powered flight favours small genomes) — yet it does not imply more genes or a more advanced organism (the long-standing C-value paradox).
Sequencing statusassembly quality — how far to trust these numbers
Assembly level tells you how finished the sequence is — from fragmented contigs, through scaffolds, up to a full chromosome-level assembly. BUSCO % estimates completeness: the share of genes expected to be present that were actually found. These describe the data quality, not the organism.
How far back this lineage goes — and how we know. Everything here is measured in Ma, short for “mega-annum”: millions of years ago. The chart reads left to right like a calendar of the Earth, from the deep past on the left to today at the right edgetop to bottom like a core drilled through the Earth, from the deep past at the top down to today at the bottom.
At a glance
When this lineage existed
How to read this: the coloured strip along the bottomdown the left is the geological calendar — the standard epochs (Pliocene, Pleistocene…) every museum uses, shown so you can see which chapter of Earth's history this lineage lived in. This lineage is a young one, so the strip is zoomed in to epochs — the finer subdivisions inside a period. The orange marker is the DNA clock: DNA accumulates mutations at a roughly steady rate, so comparing this species' DNA with its relatives estimates when the lineage split off — independently of any fossil.
Record type28 137 records
Origin
Range
Depth
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
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.
Wildobservation + sensor
Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.
Holding institutions15 of 39 geolocated
Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.
| Institution | Specimens |
|---|---|
| National Marine Biodiversity Institute of Korealocation not on record | 112 |
| Brussels, BE | 97 |
| TU EMIlocation not on record | 54 |
| Helsinki, FI | 52 |
| Frankfurt am Main | 41 |
| RBINS-Scientific Heritagelocation not on record | 37 |
| Washington, US | 32 |
| IfAÖ- Institut für Angewandte Ökosystemforschung GmbHlocation not on record | 28 |
| Natural History Museum Rotterdamlocation not on record | 27 |
| CASlocation not on record | 18 |
| Stockholm, SE | 14 |
| VUB/UGentlocation not on record | 9 |
| Bonn, DE | 6 |
| National Institute of Biological Resourceslocation not on record | 5 |
| RWSlocation not on record | 4 |
| 730location not on record | 3 |
| WMR_IMARESlocation not on record | 3 |
| DEMNA-DNElocation not on record | 3 |
| Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record | 2 |
| New Haven, US | 2 |
| Gothenburg, SE | 2 |
| Cambridge, US | 2 |
| University of Oslo (UiO)location not on record | 2 |
| ENHMlocation not on record | 2 |
| Western Australian Museumlocation not on record | 2 |
| Sydney, AU | 2 |
| Toronto, CA | 2 |
| Museum für Naturkunde Berlin (Zoological Collections)location not on record | 2 |
| CEFASlocation not on record | 1 |
| 1 | |
| MZLUlocation not on record | 1 |
| South Kensington, GB | 1 |
| Goteborg Natural History Museumlocation not on record | 1 |
| UGentlocation not on record | 1 |
| 630location not on record | 1 |
| Maurice Lamontagne Institutelocation not on record | 1 |
| SNSDlocation not on record | 1 |
| Tallinn, EE | 1 |
| Kuopio, FI | 1 |
Where the DNA of Eriocheir sinensis 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
Where its DNA was found
How strong is each trace?
Modelled climatemodelled
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.