Great Barracuda
GBA

WAH
~110 cm FL

Characteristic features:

  • No gill rakers on 1st gill arch but with rough platelets
  • Many dark bars on upper sides not crossing lateral line
  • Caudal fin with pair of large lobes on outer margin and black with white tips

Colour:

xxxxx

Size:

Up to 170 cm.

Distribution:

Indo-W.Pacific & Atlantic.

No FAO distribution map available.

Habitat:

Offshore pelagic and near, to 110 m depth.

Biology:

Mostly eats fish, but also squid. Wahoo are found in solitary or forming loose aggregations, they are possibly migratory, however little is know about their migration patterns. This species is a fast growing, early maturing species that usually reach maturity within the first year of life. Off the Atlantic coast of Florida and the Bahamas, the age and length at which 50% of female wahoo reach maturity was 0.64 years, and 92.5 cm FL respectively,1 while female wahoo off eastern Australia reach a length at 50% maturity at 104.6 cm FL.2 The spawning season varies regionally, in eastern Australia spawning occurs in summer between October and February, where females display batch spawning and spawn every 2 – 3 days. This species is highly fecund with larger females produce more eggs than smaller females, fecundity ranges between 0.44 and 1.67 million eggs per individual. Maximum average age is estimated at 5 – 6 years,3 but can reach a maximum age of 9 years.4

Fisheries:

Caught primarily by surface trolling.

Similar species:

Scomberomorus spp.
Seer fish
Scomberomorus spp. differs in having a shorter snout, a deeply forked caudal fin (vs. double emarginate); 1 – 8 gill rakers on upper and lower lobes of first gill arch (vs. none) and 13 – 22 first dorsal-fin spines (vs. 23 – 29 spines).
Scomberomorus commerson

 

Grammatorcynus bilineatus
Double-lined mackerel
Grammatorcynus bilineatus differs in having 2 lateral lines (vs. a single lateral line).

Internal links:


Acanthocybium solandri market gallery

External links:

FishBase
The IUCN Red List of Threatened SpeciesTM

References

1.
Jenkins KLM, McBride RS. Reproductive biology of wahoo, Acanthocybium solandri, from the Atlantic coast of Florida and the Bahamas. Marine and Freshwater research. 2009;60(9):893–7.
2.
Zischke MT, Farley JH, Griffiths SP, Tibbetts IR. Reproductive biology of wahoo, Acanthocybium solandri, off eastern Australia. Reviews in Fish Biology and Fisheries. 2013;23(4):491–506.
3.
Oxenford HA, Murray PA, Luckhurst BE. The biology of wahoo (Acanthocybium solandri) in the western central Atlantic. Gulf and Caribbean Research. 2003;15(1):33–49.
4.
McBride RS, Richardson AK, Maki KL. Age, growth, and mortality of wahoo, Acanthocybium solandri, from the Atlantic coast of Florida and the Bahamas. Marine and Freshwater Research. 2008;59(9):799–807.