![](https://www.aimmportugal.org/wp-content/uploads/2021/09/sei_whale.jpg)
![](https://www.aimmportugal.org/wp-content/uploads/2021/09/sei_whale_ilustration.png)
Scientific illustrations: © 2021 Haruyoshi KAWAI
Weight
Up to 30 Ton(s)
Length
Up to 21m
Threats
Bycatch, direct hunting, overfishing, pollution and ship strikes.
Group
Usually solitary or in pairs, and rarely 30-50.
Blow
Diffuse and up to 3 meters high.
Diet
Fish, squid and zooplankton.
Conservation Status
Europe
Life Span
Up to 70 years
Diving depth
At least 300m
Diving time
Up to 20 minutes
![](https://www.aimmportugal.org/wp-content/uploads/2021/10/Especies-Marinhas_Guia-de-Bolso.png)
Find out more about the marine megafauna in Portugal with the official AIMM Species Guide.
The Species Guide is a digital guide in English where you’ll find various information about the marine species that occur in mainland Portugal. You’ll find biological information, behavior, conservation status and much more!
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