Little rockfish (Acanthoclinus rua) fish species and information / pictures of Little rockfish - Acanthoclinus rua

Little rockfish (Acanthoclinus rua) fish species information

Scientific Name
Acanthoclinus rua

Common Name
Little rockfish

Biology
Dorsal spines (total): 12 - 14; Dorsal soft rays (total): 3-4; Anal spines: 14 - 15; Anal soft rays: 3 - 4. Head and body uniformly brown with a darker blotch on the gill cover. Forehead with a pale stripe. Dorsal and anal fins with orange tips. Distinguished from other rockfishes by its small size, undivided lower lateral line and the single pair of pores on the chin.

Classification

Classified By
Hardy, 1985
Class
Ray-finned fishes (Actinopterygii)
Order
Perch-like fish (Perciformes)
Family
Roundheads (Plesiopidae)

Distribution

Region
Southwest Pacific
Distribution
Southwest Pacific: endemic to New Zealand.
Range
Unknown

Environment

Climate
Temperate
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
0 m
Depth To - meters
80 m
Zone
demersal
Environment
Marine; demersal; non-migratory; depth range 0 - 80 m (Ref. 9003)
Trophic Level
3.41 s.e. 0.55 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
11.5 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 0.5312 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Fisheries: of no interest
Vulnerability
Low vulnerability (23 of 100)
Resilience
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)
Threat To Humans
  Harmless
IUCN Red List Status
  Not Evaluated