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In addition, beluga whales have undergone semen collection, [249] body temperature data collection, [251] reproductive tract examinations via transabdominal ultrasound, and endoscopic exams. [254] With new technology, the reproductive characteristics of both the female and male beluga whale have been accurately described and has benefited ...
The cetacean family Monodontidae comprises two living whale species, the narwhal and the beluga whale and at least four extinct species, known from the fossil record. Beluga and Narwhal are native to coastal regions and pack ice around the Arctic Ocean.
As part of 1980s hunting regulations, quotas were set for Inuit harvests: the annual quota for belugas hunted in Cumberland Sound was 35 whales between 1992 and 2001, and was increased to 41 whales in 2002. Total landings between 1992 and 2001 fluctuated between 15 and 50, averaging 36 to 37 belugas per year. [1]
Narwhals Beluga whales. Balaenidae [1] Bowhead whale (ᐊᕐᕕᖅ, arviq) Balaena mysticetus [2] [3] Balaenopteridae [1] Fin whale Balaenoptera physalus [4] Sei whale Balaenoptera borealis [5] Blue whale (ᐊᕐᕕᖅ ᓂᐊᖁᕐᓗᖕᓂᖅᓴᖅ, ᐃᐸᒃ, arviq niaqurlungniqsaq, ipak) Balaenoptera musculus [3] [6] Common minke whale ...
There are approximately 89 [8] living species split into two parvorders: Odontoceti or toothed whales (containing porpoises, dolphins, other predatory whales like the beluga and the sperm whale, and the poorly understood beaked whales) and the filter feeding Mysticeti or baleen whales (which includes species like the blue whale, the humpback ...
The pygmy right whale shares several characteristics with the right whales, with the exception of having a dorsal fin. Also, pygmy right whales' heads are no more than one quarter the size of their bodies, whereas the right whales' heads are about one-third the size of their bodies. [11] The pygmy right whale is the only extant member of its ...
Beluga whales and narwhals use high frequency vocalizations for echolocation; while beluga whales typically utilize higher frequency vocalizations than do narwhals, their vocalization ranges are overlapping. [10] Both species show evidence of context-dependent vocalizations. [11] [12] This indicates possible social compatibility between the two ...
A Beluga whale at the Atlanta aquarium. Observers noted that the normally white whale's skin appeared bumpy with dark splotches, apparently altered by the polluted waters of the Rhine river. [3] The Rhine was justifiably characterized as a sewer, since waste water from cities and chemical plants was for the most part poured in unfiltered.