Hawaiian halosaurid fish (Aldrovandia phalacra) fish species and information / pictures of Hawaiian halosaurid fish - Aldrovandia phalacra

Hawaiian halosaurid fish (Aldrovandia phalacra) fish species information

Scientific Name
Aldrovandia phalacra

Common Name
Hawaiian halosaurid fish

Biology
Dorsal spines : 1; Dorsal soft rays : 9-11. Body light grey in color; head silvery blue on top and sides, darker below and on gill covers. Lack of scales on the dorsal surface of the head and short maxillary spine.

Classification

Classified By

Vaillant, 1888

Class

Ray-finned fishes (Actinopterygii)

Order

Halosaurs and deep-sea Spiny eels (Notacanthiformes)

Family

Halosaurs (Halosauridae)

Distribution

Region

Probably circumglobal. Western Atlantic

Distribution

Probably circumglobal. Western Atlantic: New England, USA to Bahamas and off southern Brazil. Eastern Atlantic: northern Portugal to Guinea and off South Africa. Eastern Pacific: Hawaii and Chile. Western Indian Ocean: southern India. Eastern Indian Ocean: Western Australia.

Range

Unknown

Environment

Climate

Deep-water

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

500 m

Depth To - meters

2300 m

Zone

benthopelagic

Environment

Marine; benthopelagic; depth range 500 - 2300 m

Trophic Level

3.17 s.e. 0.34 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

False

Physical Size and Genetics

Maximum Length

50.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5156 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Unknown

Vulnerability

Moderate vulnerability (43 of 100)

Resilience

Low, minimum population doubling time 4.5 - 14 years (Assuming tmax>10)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated