Auxis thazard thazard (Lacépède, 1800)

Marine

In correlation with temperature and other environmental changes, the spawning season varies with areas, but in some places it may even extend throughout the year.

Oceanodromous. Migrating within oceans typically between spawning and different feeding areas, as tunas do. Migrations should be cyclical and predictable and cover more than 100 km.

Epipelagic in neritic and oceanic waters . Feeds on small fish, squids, planktonic crustaceans (megalops), and stomatopod larvae . Because of their abundance, they are considered an important element of the food web, particularly as forage for other species of commercial interest. Preyed upon by larger fishes, including other tunas . Confined to oceanic salinities with strong schooling behavior. Though larvae have a high temperature tolerance (at least between 21.6 and 30.5°C), the widest among tuna species studied, their optimum temperature is between 27 and 27.9°C.

Bomolochus Disease. Parasitic infestations (protozoa, worms, etc.) ; Callitetrarhynchus Disease. Parasitic infestations (protozoa, worms, etc.) ; Colocynotrema Disease. Parasitic infestations (protozoa, worms, etc.) ; Didymozoon Disease. Parasitic infestations (protozoa, worms, etc.) ; Hexostoma auxidi Disease. Parasitic infestations (protozoa, worms, etc.) ; Opepherotrema Infestation. Parasitic infestations (protozoa, worms, etc.) ; Phacelotrema Disease. Parasitic infestations (protozoa, worms, etc.) ; Phyllodistomum Disease. Parasitic infestations (protozoa, worms, etc.) ; Rhipidocotyle Infestation. Parasitic infestations (protozoa, worms, etc.) ; Tergestia Disease. Parasitic infestations (protozoa, worms, etc.) ; ; ; ; ; ; ; ; ; ;

Habitat pelagic-neritic; oceanodromous ; marine; depth range 50 - ? m

Not Evaluated IUCN 2006

fisheries: highly commercial; gamefish: yes; price category: very high; price reliability: reliable: based on ex-vessel price for this species