Image of Southern Bluefin Tuna
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Southern Bluefin Tuna

Thunnus maccoyii (Castelnau 1872)

David Spencer Muirhead   cc-by-nc-4.0

Thunnus maccoyii (Southern Bluefin Tuna) is a species of ray-finned fishes in the family mackerels. They are listed as critically endangered by IUCN. Individuals can grow to 245 cm. They have sexual reproduction. They rely on thunniform to move around.

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  • URI: http://purl.obolibrary.org/obo/GO_0019953
  • Definition: Capable of creating a new organism by combining the genetic material of two gametes, which may come from two parent organisms or from a single organism, in the case of self-fertilizing hermaphrodites.
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  • URI: https://eol.org/schema/terms/thunniform
  • Definition: Body/caudal fin propulsion, characteristic of tunas, also found in several lamnid sharks. Virtually all the sideways movement is in the tail and the region connecting the main body to the tail (the peduncle). The tail itself tends to be large and crescent shaped. This form of swimming enables these fish to chase and catch prey more easily due to the increase in speed of swimming, like in barracudas.
  • Attribution: https://en.wikipedia.org/wiki/Fish_locomotion#Thunniform
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EOL has data for 34 attributes, including:

Known occurrences, collected specimens and observations of Southern Bluefin Tuna. View this species on GBIF