Tuna fish
Tuna Fish
Tuna fish (pronunciation: /ˈtuːnə/ or /ˈtjuːnə/) is a saltwater fish that belongs to the tribe Thunnini, a subgrouping of the mackerel family (Scombridae).
Etymology
The term "tuna" ultimately derives from Thunnus, the Middle Latin form of the Ancient Greek: θύννος (thýnnos), lit. 'tunny-fish' – which is in turn derived from θύνω (thýnō), "rush, dart along".
Species
Tuna fish are fast swimmers, and some species are capable of speeds of up to 75 km/h. The Thunnini tribe comprises 15 species across five genera, the sizes of which vary greatly, ranging from the bullet tuna (max. length: 50 cm, weight: 1.8 kg) up to the Atlantic bluefin tuna (max. length: 4.6 m, weight: 684 kg).
Diet
Tuna fish are carnivorous. They eat other fish, squid, shellfish, and a variety of planktonic organisms. They are also known to eat each other.
Related Terms
- Scombridae: The mackerel family, to which the tuna belongs.
- Thunnini: The tribe of tuna fish.
- Carnivorous: Describes animals that primarily eat other animals.
- Planktonic organisms: Small and microscopic organisms drifting or floating in the sea or fresh water.
External links
- Medical encyclopedia article on Tuna fish
- Wikipedia's article - Tuna fish
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