Sei Whale

Balaenoptera Borealis
Sei Whale - Marinewise © 2026 MarineWise

Quick Facts

Scientific nameBalaenoptera Borealis
Other namesCoalfish Whale, Pollack Whale, Japan Finner, Lesser Fin Whale
SizeUp to 17 m (51 ft)
WeightUp to 30,000 kgs (66,138 lbs)
FamilyBalaenopteridae

Distribution

Habitat & AU DistributionDeep ocean waters, typically away from coastal areas in most oceans.
Depth RangeUp to 3000 m (9,842 ft)
Sei Whale Australian Distribution - Marinewise