Sei whales are usually observed alone or in small groups of two to five animals. They are fast swimmers that can reach speeds of over 34 miles per hour. Sei whales dive differently than most whales. They do not arch their backs or show their flukes …

The sei whale (/ s eɪ / SAY, [4] Norwegian:; Balaenoptera borealis) is a baleen whale. It is one of ten rorqual species, and the third-largest member after the blue and fin whales. It can grow to 19.5 m (64 ft) in length and weigh as much as 28 t (28 long tons; 31 short tons). Two subspecies are recognized: B. b. borealis and B. b. schlegelii.

Sei whales are widely distributed in open ocean waters in temperate and sub-polar regions, appearing to favour areas with temperatures between 8-18 degrees Celsius 2. As such, they appear to be absent from a band around the equator and do not range as far toward the poles and ice edge as other baleen whale species.

They are usually between 12.2- 16 m long, with the longest recorded at about 20 m; females are generally larger than males and they weigh between 20,000- 25,000 kg. Their snout is pointed and their pectoral fins are short. Their dorsal fins are sickle-shaped and range in height from 25- …

At maturity, sei whales range from 12 to 18 m in length (Lockyer, 1977; Martin, 1983). Their coloration is gray, with a variable white region from the chin to the umbilicus.

During the summer, sei whales in­ habit much the same range as fin whales in the higher latitudes and the cold currents on the eastern sides of the oceans, where food production is high. In general they range even far­ ther offshore than fin whales, and tend to be nomadic. Sei whales specialize on copepods when available (mainly Calanus ...

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), while in the North Atlantic adult males average 14 m (46 ...

2024年9月10日 · Sei whales have a wide range in the open oceans of temperate and subpolar latitudes. They favour cooler waters between 8 and 18°C and avoid warm equatorial waters or freezing polar waters. Sei whales' movement and migration patterns are not well understood, but they are most often seen far offshore, in deeper waters.

DESCRIPTION: Sei Whales grow to lengths of 12 to 18 m and weigh up to 45 tons. Their colors closely resemble the Fin Whale and the more tropical Bryde’s Whale, with a long sleek body that is dark bluish-gray to black with paler coloration to white underneath. The dorsal fin is about 25 to 60 cm high, located roughly

The sei whale is the third largest baleen whale. Their length ranges from 40 to 60 feet and weight can be up to 50 tons. Females are larger than males. The dorsal fin curves backward. The sei whale keeps a low profile when surfacing and diving. Ecology and life history