Broadhead anchovy (Stolephorus brachycephalus) fish species and information / pictures of Broadhead anchovy - Stolephorus brachycephalus

Broadhead anchovy (Stolephorus brachycephalus) fish species information

Scientific Name
Stolephorus brachycephalus

Common Name
Broadhead anchovy

Biology
Dorsal spines (total): 0; Anal spines: 0; Anal soft rays: 19 - 22. Belly a little rounded, with 4 or 5 small needle-like pre-pelvic scutes. Maxilla tip pointed, reaching to or beyond hind edge of sub-operculum; hind border of pre-operculum convex, rounded. No tooth patches on upper edge of hyoid bones. Closely resembles S. commerson, which has a shorter maxilla, fewer scutes, fewer anal fin rays and a dark line before dorsal fin.

Classification

Classified By
Wongratana, 1983
Class
Ray-finned fishes (Actinopterygii)
Order
Herrings (Clupeiformes)
Family
Anchovies (Engraulidae)

Distribution

Region
Western Central Pacific
Distribution
Western Central Pacific: Gulf of Papua and off northern Australia in Gulf of Carpentaria.
Range
5°S - 15°S, 141°E - 148°E

Environment

Climate
Tropical
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
0 m
Depth To - meters
50 m
Zone
pelagic-neritic
Environment
Marine; pelagic-neritic; depth range 0 - 50 m (Ref. 189)
Trophic Level
3.14 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
4.2 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 0.5000 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 (10 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