Erimacrus isenbeckii

(JF Brandt, 1848) · species

image placeholder — illustration coming later

Animalia/Arthropoda/Malacostraca/Decapoda/Cheiragonidae/Erimacrus

At a glance

Occurrence records2 381

Data sources11

Biological traits5

DNA specimens30

eDNA detections31

Sources11 archives

Databases and archives Erimacrus isenbeckii's data was compiled from.

WikipediaWikimedia Foundation8 languages↗

BioWikiNetmultilingual Wikipediamultilingual↗

GBIFGlobal Biodiversity Information Facility1 039 records↗

OBISOcean Biodiversity Information System1 342 records↗

ENAEuropean Nucleotide Archive · EMBL-EBI31 eDNA detections↗

BOLD SystemsCentre for Biodiversity Genomics30 specimens↗

LOTUSNatural Products (Wikidata)compounds↗

NPASSNat. Product Activity & Species Sourcecompounds↗

Open Tree of LifeOpenTreephylogeny backbone↗

Catalogue of LifeCOLtaxonomy↗

GLoBIGlobal Biotic Interactionsbiotic interactions↗

On this page6 sections

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

NarrativeWikipediaarticle

Traits & measurements1 literature sources5 traits

Chemical compositionLOTUS · NPASS36 compounds

Occurrence & distributionGBIF · OBIS2 381 records

Environmental DNA1 datasets · 0 countries31 detections

DNA & barcodingBOLD30 specimens

01Narrative

The horsehair crab, Erimacrus isenbeckii (Japanese: ケガニ, kegani), is a species of crab which is found mainly in the Northwest Pacific, around the Hokkaido coast in the Sea of Okhotsk and the Western Bering Sea and is an important commercial species used in Japanese cuisine. Despite the importance of the species, biological studies are usually specialized and limited. The catch for the species reached a peak in the 1950s at 27,000 tons and has decreased since, reaching 2,000 tons in 2003. Due to the commercial importance of the species, many stock enhancement programs have been utilized to help maintain a successful fishery. The species is commonly found on sandy benthic environments from shallow water to depths of up to 350 meters.

No narrative description available for this taxon yet.

02Traits & measurements

SourcesSeaLifeBase

Habitat & environment2

Habitat saltwateryes

Habitat zonebenthic

Uses & economy1

Commercial importancecommercial

Other traits2

Depth max300 m

Depth min30 m

03Chemical composition36 compounds

Compounds documented for Erimacrus isenbeckii across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").

Compound class profile5 classes

Ceramides14

Stigmastane steroids5

Pterocarpan3

Isoflavanones3

Isoflavones1

Documented compounds36 total

Tissue Source Quantified only

Compound	Amount	Source
(2R)-2-hydroxy-21-methyl-N-[(2S,3S,4R)-1,3,4-trihydroxyhexadecan-2-yl]docosanamide	present	LOTUS
(2R)-2-hydroxy-21-methyl-N-[(2S,3S,4R)-1,3,4-trihydroxypentadecan-2-yl]docosanamide	present	LOTUS
(2R)-2-hydroxy-22-methyl-N-[(2S,3S,4R)-1,3,4-trihydroxyhexadecan-2-yl]tricosanamide	present	LOTUS
(2R)-2-hydroxy-23-methyl-N-[(2S,3S,4R)-1,3,4-trihydroxyheptadecan-2-yl]tetracosanamide	present	LOTUS
(2R)-2-hydroxy-23-methyl-N-[(2S,3S,4R)-1,3,4-trihydroxyhexadecan-2-yl]tetracosanamide	present	LOTUS
(2R)-2-hydroxy-23-methyl-N-[(2S,3S,4R)-1,3,4-trihydroxypentadecan-2-yl]tetracosanamide	present	LOTUS
(2R)-2-hydroxy-24-methyl-N-[(2S,3S,4R)-1,3,4-trihydroxyhexadecan-2-yl]pentacosanamide	present	LOTUS
(2R)-2-hydroxy-N-[(2S,3S,4R)-1,3,4-trihydroxyhexadecan-2-yl]pentacosanamide	present	LOTUS
(2R)-2-hydroxy-N-[(2S,3S,4R)-1,3,4-trihydroxyhexadecan-2-yl]tetracosanamide	present	LOTUS
(2R)-2-hydroxy-N-[(2S,3S,4R)-1,3,4-trihydroxyhexadecan-2-yl]tricosanamide	present	LOTUS

05DNA & barcoding30 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 Erimacrus isenbeckii has left across the world's sequence archives.

At a glance

DNA specimens30

BINs1

Marker genes2

eDNA detections31

Countries1

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-3P★COI-5P

animal barcode

08Occurrence & distribution

Record type2 381 records

Wild obs. + sensor2 286

Museum / vouchered95

Range

Area of Occupancy AOO2 404 km²

Depth

0–200 m sunlit100

200–1000 m twilight7

1–4 km midnight0

>4 km abyssal0

median 30 m · max 750 m · 107 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 accuracy0% within 1 km

≤100 m 6≤1 km 1≤10 km 1>10 km 2 183

2 191 georeferenced · 95 without coordinates

Open the mapobservation + sensor2 286

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 accuracy0% within 1 km

>10 km 1

1 georeferenced · 94 without coordinates

Open the institutions mapphysical evidence95

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 9 geolocated

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

Institution	Specimens
Washington, US	49
CASlocation not on record	11
Museo civico La Terra e l'Uomo di Crocetta del Montellolocation not on record	3
Museum für Naturkunde Berlin (Zoological Collections)location not on record	3
National Marine Biodiversity Institute of Korealocation not on record	3
Edmonton, CA	3
Cambridge, US	2
Victoria, CA	1
Akita Prefectural Museumlocation not on record	1

9 institutions · 76 of 95 vouchered records shown

09Environmental DNA31 detections

Where the DNA of Erimacrus isenbeckii 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 found31

Studies independent surveys1

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

Where its DNA was found

0 of 31 detections have coordinates

Open the map0 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.

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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Erimacrus isenbeckii

At a glance

Sources11 archives

Habitat & environment2

Uses & economy1

Other traits2

Compound class profile5 classes

Documented compounds36 total

At a glance

Record type2 381 records

Range

Depth

Wildobservation + sensor

Museum / Voucheredphysical evidence

Wildobservation + sensor

Holding institutions4 of 9 geolocated

Signal

Where its DNA was found

How strong is each trace?

Record type2 381 records