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Aldrovandia phalacra  (Vaillant, 1888)

Hawaiian halosaurid fish
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Aldrovandia phalacra   AquaMaps   Data sources: GBIF OBIS
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Image of Aldrovandia phalacra (Hawaiian halosaurid fish)
Aldrovandia phalacra
Picture by Orlov, A.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Notacanthiformes (Halosaurs and deep-sea spiny eels) > Halosauridae (Halosaurs)
Etymology: Aldrovandia: Taken from Ulisse Aldrovandi, (1522-1605), a Renaissance naturalist and physician noted by his systematic and accurate observations of plants and animals (Ref. 45335).

Environment / Climate / Range Ecology

Marine; benthopelagic; depth range 500 - 2300 m (Ref. 4448).   Deep-water

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 50.0 cm TL male/unsexed; (Ref. 27000)

Short description Morphology | Morphometrics

Dorsal spines (total): 1; Dorsal soft rays (total): 9-11. 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).

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

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).

Biology     Glossary (e.g. epibenthic)

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.

Main reference Upload your references | References | Coordinator | Collaborators

Sulak, K.J., 1990. Halosauridae. p. 126-132. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 1. (Ref. 4448)

IUCN Red List Status (Ref. 90363)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | National databases | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5156   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00102 (0.00046 - 0.00225), b=3.06 (2.88 - 3.24), based on all LWR estimates for this body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.2   ±0.34 se; Based on food items.
Resilience (Ref. 69278):  Low, minimum population doubling time 4.5 - 14 years (Assuming tmax>10).
Vulnerability (Ref. 59153):  Moderate vulnerability (43 of 100) .
Price category (Ref. 80766):   Unknown.