Creatures in Crisis
Photograph of Dipturus trachyderma (Dipturus trachyderma), recorded as Endangered
Dipturus trachyderma (Dipturus trachyderma). Image via Wikimedia Commons.

Endangered

Dipturus trachyderma

Dipturus trachyderma

Dipturus trachyderma, the roughskin skate, is a skate belonging in the family of Rajidae and the genus Dipturus.

Status
Endangered
Scientific name
Dipturus trachyderma
Taxonomy
Elasmobranchii · Rajiformes · Rajidae · Dipturus

Appearance

The average disc width of tagged females from Chile was 73.5 cm (28.9 in). Roughskin skates were considered to be closely related to yellownose skates (Dipturus chilensis), that suggested that there could have been a history of hybridization or these two skates may be members of a cryptic species complex.

The roughskin skate is able to grow up to a length of 265 cm (104 in). Females reach an average of 215 cm (85 in) and males reach an average of 195 cm (77 in).

Range and habitat

In Chilean waters, they can be found at a depth of 200–350 metres (660–1,150 ft) and in Argentinian waters, they can be found between 80–150 metres (260–490 ft) in depth.

Pins are Wikidata “endemic to” fields. Orange dots, when present, are GBIF occurrence tiles — survey bias included.

Breeding

The females have a continuous reproductive cycle with multiple breeding peaks annually.

In crisis

The IUCN Red List assessment suggested that this species is in risk of extinction due to severe overfishing. Primary threats to this species includes: overfishing for commercial trade for export to Korea, bycatch mortality as the species is caught in trawl and longline angling that targets other species, slow growth and late sexual maturity that makes the species susceptible to population decline and lack of conservation measures.

Dipturus trachyderma is Endangered on this catalog because that is the IUCN category stored on Wikidata. Confirm the official criteria and any later count on iucnredlist.org.

Sources

Written for this catalog from the English Wikipedia article on Dipturus trachyderma, Wikidata item Q5018986. Family and order context is original field-guide writing about the group, not a copied assessment of this one species. Wikipedia text is CC BY-SA. Not an IUCN assessment. Counts, when quoted, can change — confirm them on the recovery programme and on iucnredlist.org.

Photograph via Wikimedia Commons. Wikipedia · Wikidata · IUCN Red List.

Same genus

Photograph of Common skate (Dipturus batis), recorded as Critically EndangeredCR

Common skate

Dipturus batis
Photograph of Flapper skate (Dipturus intermedius), recorded as Critically EndangeredCR

Flapper skate

Dipturus intermedius
Photograph of Grey skate (Dipturus canutus), recorded as EndangeredEN

Grey skate

Dipturus canutus
Photograph of Dipturus nidarosiensis (Dipturus nidarosiensis), recorded as EndangeredEN

Dipturus nidarosiensis

Dipturus nidarosiensis

Quick answers

What is Dipturus trachyderma?
Dipturus trachyderma is a shark or ray in the family Rajidae (order Rajiformes).
What is the conservation status of Dipturus trachyderma?
Endangered, as the IUCN category stored on Wikidata for Dipturus trachyderma. Confirm the official assessment on iucnredlist.org.
Where does Dipturus trachyderma live?
In Chilean waters, they can be found at a depth of 200–350 metres (660–1,150 ft) and in Argentinian waters, they can be found between 80–150 metres (260–490 ft) in depth.
Why is Dipturus trachyderma in crisis?
Primary threats to this species includes: overfishing for commercial trade for export to Korea, bycatch mortality as the species is caught in trawl and longline angling that targets other species, slow growth and late sexual maturity that makes the species susceptible to population decline and lack of conservation measures.
Is this the IUCN Red List page for Dipturus trachyderma?
No. This is a researched catalog account. The Red List is the assessment.
Is Dipturus trachyderma a pet?
An animal on this catalog is in crisis in the wild. Keeping one is usually the wrong question.