Apnaut
Bluefin tuna
Thunnus thynnus
Photo: Unknown authorUnknown author · Public domain
The Bluefin tuna (Thunnus thynnus) is a common target in breath-hold spearfishing. It usually frequents open water and is found between 10 and 50 m, so it pays to adjust your search depth. It is wary, hard to get close to, which shapes how to approach it.
It's one of the hardest fish: patience and technique. In Apnaut you have its minimum legal size across 3 different zones. Always check your area's current regulations before taking it.
Behaviour: wary, hard to get close to.
Minimum legal size by zone
| Zone | Minimum size |
|---|---|
| Balearic Islands | 115 cm |
| North-East Atlantic | 115 cm |
| Mediterranean | 115 cm |
Where to catch it
Other names
Atún rojo (es) · Atum-rabilho (pt) · Thon rouge (fr) · Tonno rosso (it) · Roter Thun (de) · Τόνος (el) · Tuna (hr) · Orkinos (tr)
Frequently asked questions
What is the minimum legal size for Bluefin tuna?
It depends on the area. For example, Balearic Islands: 115 cm; North-East Atlantic: 115 cm; Mediterranean: 115 cm. See the full size-by-zone table above.
At what depth is Bluefin tuna found?
Usually between 10 and 50 m, mostly over open water.
Is it hard to spearfish on a single breath?
Its difficulty is “very hard”. It is also wary, hard to get close to. In Apnaut you can log your catches and their size.
Log it in Apnaut
Add this species to your collection, log your catches with their size and check the legal minimum for your area, all from your phone.
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