tuna

1. is a type of: prickly pear, prickly pear cactus - cacti having spiny flat joints and oval fruit that is edible in some species; often used as food for stock
   same as: opuntia tuna
2. is a type of: saltwater fish - flesh of fish from the sea used as food
   subtypes:

   • albacore - relatively small tuna with choice white flesh; major source of canned tuna
   • bonito - flesh of mostly Pacific food fishes of the genus Sarda of the family Scombridae; related to but smaller than tuna
   • bluefin, bluefin tuna - flesh of very large tuna
   is a part of: tuna, tunny - any very large marine food and game fish of the genus Thunnus; related to mackerel; chiefly of warm waters
   same as: tuna fish, tunny
3. is a type of:

   • food fish - any fish used for food by human beings
   • scombroid, scombroid fish - important marine food and game fishes found in all tropical and temperate seas; some are at least partially endothermic and can thrive in colder waters
   subtypes:

   • albacore, long-fin tunny, thunnus alalunga - large pelagic tuna the source of most canned tuna; reaches 93 pounds and has long pectoral fins; found worldwide in tropical and temperate waters
   • bluefin, bluefin tuna, horse mackerel, thunnus thynnus - largest tuna; to 1500 pounds; of mostly temperate seas: feed in polar regions but breed in tropics
   • thunnus albacares, yellowfin, yellowfin tuna - may reach 400 pounds; worldwide in tropics
   belongs to: genus thunnus, thunnus - tunas: warm-blooded fishes
   has: tuna, tuna fish, tunny - important warm-water fatty fish of the genus Thunnus of the family Scombridae; usually served as steaks
   same as: tunny
4. is a type of: eel - voracious snakelike marine or freshwater fishes with smooth slimy usually scaleless skin and having a continuous vertical fin but no ventral fins
   same as: anguilla sucklandii

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