baird's beaked whale diet

Only one species has a full set of functional teeth. Adapted by Nina Lisowski from Jefferson, T.A., Webber, M.A., and Pitman, R.L.

It is believed that females give birth about once every three years. Females reach lengths of about 40 feet (13 m), while males are slightly smaller at about 35 feet (11.5 m). However, for Baird’s beaked whales in the southern Okhotsk Sea, cephalopods made up nearly 90% of the diet, with the remainder consisting of morid and macrourid fish (Walker et al., 2002). Because so little is known about it, ascertaining its population numbers and, therefore, protection status has been impossible with modern technology and equipment. Most information about them has been obtained from dissections of animals killed in coastal hunting off Japan and studies of stranded whales.

The Baird’s Beaked Whale has a distinctly bulbous forehead with an indentation situated right around the blowhole. It is believed that this species is limited to the north Pacific. As adults, Baird’s beaked whales can weigh approximately 26,400 pounds (12,000 kg). This anatomic feature may be an adaptation to reduce drag. Physical Characteristics Other names: Northern four-toothed whale; Giant bottle-nosed whale; North Pacific bottlenose whale.
Baird's beaked whales can tuck their flippers away into small depressions in their sides when they want to dive. Unlike their bodies, which are brownish-grey, these melons turn a whitish hue as they age. The pectoral flippers are also small, and are rather rounded in shape. Baird’s beaked whales have an elongated, slender, spindle-shaped body with a small head and long flat back.

In older animals the teeth may be worn down to the gum line. Little is known about Baird’s beaked whale reproduction. Baird's beaked whale has a diet that consists primarily of deep sea fish and cephalopods found at its preferred dive depths (1000–1777m). Study around Bairds beaked whales has led to many questions surrounding their genetic link to other whales. For a long time, it was wondered whether they were in fact the same species as Arnoux’s beaked whale, yet genetic research has proven this not to be the case.

These deep water whales are usually found in the vicinity of seamounts and continental slopes in temperate and subarctic waters. For a long time, it was wondered whether they were in fact… ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. stomach samples col- lected . Males weigh more than 10,000 kg (22,046 lb) and females, 11,000 kg (24,250 lb). Stalked barnacles and whale lice often attach to the exposed teeth.

The specimens had been preserved at the Smithsonian’s National Museum of Natural History and the Natural History Museum of Los Angeles County. The teeth are 9-10 cm (3.5-4 in) high and are exposed even when the whale’s mouth is closed. Stats: Weight: 20,000 - 30,000 lbs (9 - 13.6 tons) Length: 35 - 42 ft (10.7 - 12.8 m) Diet: Squid and deep dwelling fish; Status: N/A; Distribution: Baird's Beaked Whale Range Additional Content. Various scars appear to match the teeth patterns of both. Baird’s beaked whales are usually found in tight social groups (schools or pods) averaging between 2-20 individuals, but have been occasionally seen in larger groups of up to 50 animals.
Sea of . Currently, these whales are not considered to be “great” whales for which IWC does set quotas relative to scientific and subsistence whaling.

2"N . One of the most interesting adaptations that beaked whales have is their teeth. (2015). BAIRDS . Swimming closely along together, they surface, breathe and sometimes breach at the same time, creating a sort of synchronicity within the group. Your gifts help us take action to protect their homes. Two species of the beaked whale genus Berardius live on high latitudes of the Northern and Southern Hemisphere. The species has a mean dive time of about 1 hour, which suggests a long search and handling time. The strap-toothed beaked whale male has two teeth shaped like straps that grow out of each side of the mouth, and then curve up and over the top of the jaw, preventing the whale from fully opening its mouth. Baird's beaked whales live for a long time, with males outliving the  females. Thus, data are insufficient to estimate population trends.

Patches of diatoms (single-cell algae) sometimes give their skin a brownish or greenish sheen.

They swim in tight packs of three to 30 individuals. Baird’s beaked whales mainly eat mackerel, octopi, squid and sardines. Talented divers, Baird's beaked whales can comfortably dive to depths of 800 to 1,200 meters deep. The small, rounded flippers are set toward the front of the body. Laboratory examinations of the heads of the whales showed trauma induced by sound. Baird’s beaked whales, Berardius bairdii (Stejneger, 1883), aka north Pacific bottle-nosed whales, are the largest of the beaked whales reaching up to 12.8 m in length. Study around Bairds beaked whales has led to many questions surrounding their genetic link to other whales. The IUCN lists them as Lower Risk/Conservation Dependent.

They will, usually, stick close to continental shelves. They are genetically distinct, but not morphologically. When feeding, they typically stay under water for 30 minutes but can remain submerged for as long as an hour or more. The multiple long, linear, parallel scars crisscrossing the body of a male Baird’s beaked may to be the result of attacks by other males using their exposed teeth in aggressive encounters, especially during breeding, and by killer whales. These two flippers are situated close to the front of the body, close to the underside of the head. By continuing you agree to the use of cookies. Where to Find Them The Baird's Beaked Whale Berardius bairdii. Beaked whales appear to be especially susceptible to noise pollution. Northwestern Pacific Ocean south of Bering Sea to Sea of Japan to central California. These whales are 10.7-12.8 m (35-42 ft) long. The Baird’s Beaked Whale has a distinctly bulbous forehead with an indentation situated right around the blowhole. Keep up-to-date about our work and the latest news from the world of whales and dolphins. (562) 590-3100.

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