Spotted Handfish (Brachionichthys hirsutus) fish species and information / pictures of Spotted Handfish - Brachionichthys hirsutus

Spotted Handfish (Brachionichthys hirsutus) fish species information

Scientific Name
Brachionichthys hirsutus

Common Name
Spotted Handfish

Biology
Dorsal soft rays (total): 19-21; Anal soft rays: 8 - 10. This species is unique in having the following set of characters: esca small, 15-26% (mean 20%) of illicium length (including esca); illicium very slender, no dermal spinules, length 19-20% SL (mean 20%), 2.3-2.4 times in head length; eye moderate, exceeding 5.4 times in head; body entirely covered with close-set, non-imbricate scales; scale bases subcircular with long unicuspid spinules (except for those closely-associated with pores of the acoustico-lateralis system); spinules originating from middle of scale base, variable in length over body; second dorsal-fin rays 17-19 (mean 18), fin base 61-64 (mean 62%) SL; first ray of first dorsal fin length 0.7-1.0 times length of longest ray of second dorsal fin; anal-fin rays 8-10; pectoral-fin rays usually 7 ; upper body usually covered with fine dark spots or short streaks (rarely with long streaks on head); caudal fin with dense coverage of fine spots, forming a dark sub

Classification

Classified By
Lacep?de, 1804
Class
Ray-finned fishes (Actinopterygii)
Order
Anglerfishes (Lophiiformes)
Family
Handfishes (Brachionichthyidae)

Distribution

Region
Southwest Pacific
Distribution
Southwest Pacific: Endemic to Tasmania, Australia. Has been nearly wiped out by an introduced starfish which preys on its egg clusters (Ref. 27438).
Range
41°S - 44°S, 147°E - 149°E

Environment

Climate
Temperate
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
1 m
Depth To - meters
60 m
Zone
demersal
Environment
Marine; demersal; non-migratory; depth range 1 - 60 m (Ref. 72490), usually 5 - 15 m (Ref. 72490)
Trophic Level
3.28 s.e. 0.39 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
15.0 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 0.7501 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Unknown
Vulnerability
Low vulnerability (10 of 100)
Resilience
Unknown
Threat To Humans
  Harmless
IUCN Red List Status
  Critically Endangered (CR) (A1cde)