Gal?pagos Ghost Shark (Hydrolagus mccoskeri) fish species and information / pictures of Gal?pagos Ghost Shark - Hydrolagus mccoskeri

Gal?pagos Ghost Shark (Hydrolagus mccoskeri) fish species information

Scientific Name
Hydrolagus mccoskeri

Common Name
Gal?pagos Ghost Shark

Biology
Hydrolagus with head small with short, blunt snout; second dorsal fin only slightly indented along its length; preopercular and oral lateral line canals branching from the same node off the infraorbital canal and sharing a short common branch; dorsum medium brown with numerous narrow, sharply delineated irregular circular and elongate white blotches; ventrum white to tan with extremely fine brown mottling.

Classification

Classified By

Barnett, Didier, Long & Ebert, 2006

Class

Chimaeras (Holocephali)

Order

Chimaeras (Chimaeriformes)

Family

Shortnose chimaeras or ratfishes (Chimaeridae)

Distribution

Region

Eastern Central Pacific

Distribution

Eastern Central Pacific: Galapagos Is..

Range

1°N - 2°S, 92°W - 89°W

Environment

Climate

Deep-water

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

396 m

Depth To - meters

506 m

Zone

bathyalpelagic

Environment

Marine; bathypelagic; non-migratory ; depth range 396 - 506 m

Trophic Level

3.61 s.e. 0.54 Based on size and trophs of closest relatives

Occurs in Marine / Salt water

True

Occurs in Brackish water

False

Occurs in Fresh Water

False

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

38.1 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

Unknown

Vulnerability

Low to moderate vulnerability (33 of 100)

Resilience

High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Threat To Humans

Harmless (Ref. 57880)

IUCN Red List Status

Data deficient (DD)