Pointy-nosed blue chimaera (Hydrolagus trolli) fish species and information / pictures of Pointy-nosed blue chimaera - Hydrolagus trolli

Pointy-nosed blue chimaera (Hydrolagus trolli) fish species information

Scientific Name
Hydrolagus trolli

Common Name
Pointy-nosed blue chimaera

Biology
Body blue-gray with a dark line around the orbit and dark shadowing along edges of lateral-line canals. Snout pointed. Preopercular and oral lateral-line canals sharing a common branch. D1 concave with pale margin. Males with frontal tenaculum deeply curved, upturned distally with spines along dorsal upturned edge. Prepelvic tenacula deeply indented along distal margin. Pelvic claspers with pale fleshy distal lobes, divided distally for 1/3 their length, tips usually extending beyond distal edge of pelvic fins. Ventral caudal fin not deeply indented at its origin to form a separate anal fin.

Classification

Classified By
Didier & S?ret, 2002
Class
Chimaeras (Holocephali)
Order
Chimaeras (Chimaeriformes)
Family
Shortnose chimaeras or ratfishes (Chimaeridae)

Distribution

Region
Western Pacific
Distribution
Western Pacific: New Caledonia and New Zealand.
Range
Unknown

Environment

Climate
Deep-water
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
612 m
Depth To - meters
1707 m
Zone
bathydemersal
Environment
Marine; bathydemersal; depth range 612 - 1707 m
Trophic Level
3.85 s.e. 0.58 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
112 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
High vulnerability (63 of 100)
Resilience
Low, minimum population doubling time 4.5 - 14 years (Assuming Fec
Threat To Humans
Harmless
IUCN Red List Status
Data deficient (DD)