Spotted ratfish (Hydrolagus colliei) fish species and information / pictures of Spotted ratfish - Hydrolagus colliei

Spotted ratfish (Hydrolagus colliei) fish species information

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Scientific Name
Hydrolagus colliei

Common Name
Spotted ratfish

Biology
Dorsal spines : 1; Dorsal soft rays : 10

Classification

Classified By

Lay & Bennett, 1839

Class

Chimaeras (Holocephali)

Order

Chimaeras (Chimaeriformes)

Family

Shortnose chimaeras or ratfishes (Chimaeridae)

Distribution

Region

Eastern Pacific

Distribution

Eastern Pacific: Cape Spencer, Alaska to Bah?a Sebastian Vizca?no, Baja California. Isolated population in the northern Gulf of California.

Range

58°N - 28°N

Environment

Climate

Temperate

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

0 m

Depth To - meters

913 m

Zone

demersal

Environment

Marine; demersal; depth range 0 - 913 m

Trophic Level

3.68 s.e. 0.54 Based on food items.

Occurs in Marine / Salt water

True

Occurs in Brackish water

False

Occurs in Fresh Water

False

Occurs on Reefs

False

Is kept in Aquariums

True

Physical Size and Genetics

Maximum Length

97.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: of no interest; aquarium: public aquariums

Vulnerability

Moderate to high vulnerability (50 of 100)

Resilience

Low, minimum population doubling time 4.5 - 14 years (K=0.2-0.22; Fec=2)

Threat To Humans

Traumatogenic (Ref. 4690)

IUCN Red List Status

Least Concern (LC)