Bigeye poacher (Bathyagonus pentacanthus) fish species and information / pictures of Bigeye poacher - Bathyagonus pentacanthus

Bigeye poacher (Bathyagonus pentacanthus) fish species information

Scientific Name
Bathyagonus pentacanthus

Common Name
Bigeye poacher

Biology
Dorsal spines (total): 5 - 8; Dorsal soft rays (total): 6-7; Anal spines: 0; Anal soft rays: 6 - 8. Dorsal fins moderately developed and placed fairly close together; caudal rounded; anal originating below interspace between dorsal fin, closer to first; lower 4 or 5 rays of pectorals greatly exserted and thickened; pelvic fins reduced (Ref. 6885). Olive brown on dorsal surface, paler below; 5 or 6 dark brown saddle-like markings on back and sides; dark brown to dusky on dorsal, caudal and pectoral fins; pelvic and anal fins pale (Ref. 6885).

Classification

Classified By
Gilbert, 1890
Class
Ray-finned fishes (Actinopterygii)
Order
Scorpionfishes and Flatheads (Scorpaeniformes)
Family
Poachers (Agonidae)

Distribution

Region
North Pacific
Distribution
North Pacific: Gulf of Alaska to southern California, USA. Evermann and Goldsborough 1907 (Ref. 11366) erroneously recorded Bathyagonus pentacanthus from the Bering Sea.
Range
61°N - 31°N, 165°W - 115°W

Environment

Climate
Subtropical
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
110 m
Depth To - meters
910 m
Zone
demersal
Environment
Marine; demersal; depth range 110 - 910 m (Ref. 28197)
Trophic Level
3.24 s.e. 0.36 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
23.0 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 0.5625 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Unknown
Vulnerability
Low to moderate vulnerability (33 of 100)
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)
Threat To Humans
  Harmless
IUCN Red List Status
  Not Evaluated