There were more unpublished or unreported sightings of right whales confirmed by locals in recent years in which some important observations such as a cow-calf pairs observation close to shore are included (personal contact). The densest concentrations occurred along both coasts of.These initial studies of the historic records were reviewed more rigorously and combined with more recent information in 2004.The Maury charts were based on tables transcribed by two assistants. Pot fisheries occur in offshore waters, but are often deployed in winter when right whales are not known to be present.All the modern records of entanglement have involved Japanese fisheries including cases in the Russian Far East in which about 60% of all cetacean (medium to larger species) entanglements recorded in the Sea of Okhotsk were caused by Japanese fisheries.Collisions with commercial ships are the greatest threat to North Atlantic right whales. One of the whales had a big scar anterior to the blowhole caused by fishing gear such as the mainline from crab nets (photos).December 25, 1996 – in the Sea of Okhotsk, one right whale found alive but entangled in crab net gear. Nevertheless, several biologists kept their own records of what the whalers caught, then kept these records secret. when fully matured with up to 40% of its body weight consisting of blubber.These whales are known for their unique shape and the white calluses that form their head.In addition to the white calluses that grow on their head these whales are also distinguished by their large broad backs which are absent of a dorsal or stabilizer fin.In terms of coloring these they have a dark gray to black skin tone with intermittent white spotting along the belly.The north pacific right whale is known to consume a diet consisting primarily of copepods; however they can also be seen consuming small.They may also make occasional dives for food when they are finding it difficult to locate food on or near the surface.When hunting prey such as zooplankton these whales use their baleen bristles to trap their prey in their mouth then use their tongue to expel the water before swallowing their prey.Their baleen plates and bristles are designed to capture particularly small prey while also allowing water to easily pass through so that it can be expelled.As the name suggests the north pacific right whale can be found swimming in the North Pacific Ocean.Unfortunately due to severe hunting the north pacific right whale has become a very rare species.On occasion these whales can be found traveling through the southeastern Bearing Sea, the Gulf of Alaska and the Sea of Okhotsk.Aside from using sound these whales may also communication through physical contact such as bumping into each other and touching one another’s flippers.These whales can usually be found traveling alone or in small pods of 2 – 3 whales, however larger groups may be found traveling together during mating season.As with other whales that travel in small pods the north pacific right whales pods may consist of a mother and her child or 2 – 3 family members/friends who travel together.While Female whales can often be seen traveling with their young males may or may not choose to travel with their children or female mates as long-term relationships are often rare among these whales.In terms of visual behavior these marine mammals have been observed breaching the water, tail slapping, fin slapping and spyhopping in order to observe their surroundings.Due to excessive whaling efforts their now low population numbers have made it difficult for researchers to study their behavior.After birth the female whale may be seen nursing her young for up to 2 years before their child is able to survive on its own, however in many cases the child is able to fend for itself within the first 12 months.North pacific right whales reach sexual maturity between the ages of 8 – 11 at which point they may begin bearing offspring of their own.It is estimated that the north pacific right whale gives birth to a single offspring once every 3 – 6 years on average while they are fertile.Not much is known about the lifespan of these whales, however it is estimated that the north pacific right whale has a lifespan of 50 – 100 years.Unfortunately very little is known about any possible threats that these marine mammals may face.More data needs to be collected before any conclusive facts can be determined.Possible threats may include getting entangled in fishing equipment and occasionally being struck by a passing ship, however their scattered behavior makes it difficult to identify any consistent threats.Pollution and environmental changes may also play a role in threatening the lives of the North Pacific right whale.It is assumed that these marine mammals may be prayed upon by large sharks and groups of killer whales.Due to their small size it is believed that the adults face no real threats while newborn and young whales may be occasionally attacked by killer whales and/or sharks.Aside from these animals humans are still considered the primary threat to the North Pacific right whale.During the whaling era the North Pacific right whale was extensively hunted and thousands of right whales were killed which has led to a large decrease in the right whale population.These marine mammals are now protected and considered extremely endangered.Numerous conservation efforts have been put into place to assist with preventing further decline in numbers and to prevent interference from commercial boats, habitat degradation and other factors that may affect current populations.Unfortunately the re-population status of these whales remains unknown as there are so few North Pacific right whales alive today.These small population numbers make it difficult for researchers to predict possible recovery trends as these whales may have difficulty finding mating partners and/or growing their population quickly enough to prosper.We use cookies to ensure that we give you the best experience on our website.

Each whale has an estimated 7,500 whale lice.North Pacific right whales are among the most endangered whale species in the world. The body was processed to products on sale.June 2013 – British Columbia, Canada. Another sighting of 17 including two calves was noted in September, and one in the Gulf of Alaska.Review of more than 3,600 North Pacific right whale calls detected by passive listening devices between 2000 and 2006 strongly suggests that the whales migrate into the southeast Bering Sea in late spring and remain until late fall. They conclude that there are probably at least two stocks of right whales in the western and eastern North Pacific, but that it is still unclear whether the Okhotsk population is a separate stock.Catch records suggest that historical ranges were much broader than that of current status, and was strongly overlapping with ranges of bowhead whales. The western North Pacific right whale lives in the Sea of Okhotsk and along the western Pacific rim; scientists estimate there are about 300 of them left.