Aldrovandia phalacra (Vaillant, 1888)

Hawaiian halosaurid fish

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Actinopterygii \| Notacanthiformes \| Halosauridae
Synonyms	Halosaurus phalacrus, Halosaurichthys nigerrimus, Halosauropsis kauaiensis, ... more
Common names	Baldhead halosaur, 裸头海蜴鱼, Aldrovandie azorská, ... more

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Image of Aldrovandia phalacra (Hawaiian halosaurid fish)

Picture by Orlov, A.

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This map was computer-generated and has not yet been reviewed.

AquaMaps Data sources: GBIF OBIS

Main reference

Sulak, K.J. 1990. (Ref. 4448)
Other references | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 50.0 cm TL male/unsexed; (Ref. 27000)

Environment

Benthopelagic; marine; depth range 500 - 2300 m (Ref. 4448)

Climate / Range

Deep-water

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 (Ref. 9068). Western Indian Ocean: southern India. Eastern Indian Ocean: Western Australia (Ref. 49596).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 1; Dorsal soft rays (total): 911. Body light grey in color; head silvery blue on top and sides, darker below and on gill covers (Ref. 3974). Lack of scales on the dorsal surface of the head and short maxillary spine (Ref. 37108).

Found between 530-2321 m, associated with islands and continental slopes (Ref. 58302). Found at bathyal to abyssal depths. Feeds on amphipods, mysids, copepods and polychaetes. Sexually dimorphic, maturing males have enlarged nostrils, anterior nostrils are black and tubular. Females outnumber males 4:1 in western North Atlantic.


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Harmless

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More information
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Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

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


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Moderate vulnerability (43 of 100)	Not marketed/unknown

Entered by Binohlan, Crispina B.

Modified by Ortañez, Auda Kareen

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Page last modified by : elaxamana, 15 July 2009

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