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Sei Whale Video Stock Footage

The sei whale is the fourth-largest balaenopterid, after the blue whale (up to 180 tonnes, 200 tons) and the fin whale (up to 70 tonnes, 77 tons) and the humpback whale (up to 40 tonnes, 44.5 tons). In the North Pacific, adult males average 13.7 m (45 ft) and adult females 15 m (49 ft), weighing 15 and 18.5 tonnes (16.5 and 20.5 tons), while in the North Atlantic adult males average 14 m (46 ft) and adult females 14.5 m (48 ft), weighing 15.5 and 17 tonnes (17 and 18.5 tons) In the Southern Hemisphere, they average 14.5 (47.5 ft) and 15 m (49 ft), respectively, weighing 17 and 18.5 tonnes (18.5 and 20.5 tons). ( In the Northern Hemisphere, males reach up to 17.1 m (56 ft) and females up to 18.6 m (61 ft), while in the Southern Hemisphere males reach 18.6 m (61 ft) and females 19.5 m (64 ft) — the authenticity of an alleged 22 m (72 ft) female caught 50 miles northwest of St. Kilda in July 1911 is doubted. The largest specimens taken off Iceland were a 16.15 m (53.0 ft) female and a 14.6 m (48 ft) male, while the longest off Nova Scotia were two 15.8 m (52 ft) females and a 15.2 m (50 ft) male. The longest measured during JARPN II cruises in the North Pacific were a 16.32 m (53.5 ft) female and a 15 m (49 ft) male. The longest measured by Discovery Committee staff were an adult male of 16.15 m ...

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Animalia: Chordata: Cetacea: Mammalia: Balaenopteridae: Balaenoptera borealis

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