Humpback Handfish (Brachiopsilus dossenus) fish species and information / pictures of Humpback Handfish - Brachiopsilus dossenus

Humpback Handfish (Brachiopsilus dossenus) fish species information

Scientific Name
Brachiopsilus dossenus

Common Name
Humpback Handfish

Biology
Dorsal soft rays (total): 19; Anal soft rays: 10. Member of the genus Brachiopsilus with a combination of the following characters: esca small, 23?30% of illicium length; illicium smooth, thin, not exceedingly fleshy, length 13?16% SL, 3.1?3.6 times in head length, 2.1?2.3 times in length of second dorsal-fin spine; apex of esca situated above anterior half of eye when illicium adpressed; esca slightly wider than illicial stem, covered with dense, short, filaments; head slightly compressed; eye large (horizontal diameter 7?9% SL); mouth narrow; lips fleshy with prominent vertical folds; body and fins entirely naked (except for scales associated with pores of the acoustico-lateralis system and minute, deeply embedded scale and spinule fragments); long first dorsal-fin base (length 29?30% SL); second dorsal-fin rays 17, fin base 77?79% SL; length of second dorsal-fin spine 1.1?1.2 times length of longest ray of second dorsal fin; 10 anal-fin rays, length of anal-fin base 40?44% SL

Classification

Classified By
Last & Gledhill, 2009
Class
Ray-finned fishes (Actinopterygii)
Order
Anglerfishes (Lophiiformes)
Family
Handfishes (Brachionichthyidae)

Distribution

Region
Eastern Indian Ocean
Distribution
Eastern Indian Ocean: Australia.
Range
38°S - 43°S, 148°E - 149°E

Environment

Climate
Temperate
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
20 m
Depth To - meters
226 m
Zone
demersal
Environment
Marine; demersal; depth range 20 - 226 m (Ref. 82446)
Trophic Level
s.e. 0.00 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
6.5 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 0.6251 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Fisheries:
Vulnerability
Low vulnerability (10 of 100)
Resilience
Unknown
Threat To Humans
  Harmless
IUCN Red List Status
  Not Evaluated