CAUSES OF EXTINCTION Blue whale, (Balaenoptera musculus), also called sulfur-bottom whale, the most massive animal ever to have lived, a species of baleen whale that weighs approximately 150 tons and may attain a length of more than 30 metres (98 feet).

Hall, P. Miller, and C. Ramp,P. Baulch and C. Perry, “Evaluating the impacts of marine debris on cetaceans,”,M. Climate change also have major impact to their food supply because global warming impact to krills populations. & Chivers, S. J. The authors wish to thank Tony Wu and Sopaka Karunasundara for providing images of entanglement and ship strike. Marine Policy Volume 32, Issue 3, May 2008, Pages 408-412,International Union for Conservation of Nature,World Society for the Protection of Animals,International Convention for the Regulation of Whaling,"Extinction nears for whales and dolphins","Southern right whale population on the rebound",http://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1068&context=usdeptcommercepub,"Um stofnstærðir langreyðar og hrefnu við Ísland og flokkun IUCN",10.2305/IUCN.UK.2018-2.RLTS.T2478A50349982.en,10.2305/IUCN.UK.2018-2.RLTS.T41713A50226962.en,http://www.iucnredlist.org/apps/redlist/details/full/2477/0,10.2305/IUCN.UK.2018-2.RLTS.T8099A50345475.en,10.2305/IUCN.UK.2018-1.RLTS.T41711A50380694.en,10.2305/IUCN.UK.2018-1.RLTS.T41712A50380891.en,10.2305/IUCN.UK.2018-2.RLTS.T2475A130482064.en,"Balaenoptera musculus ssp. The IWC stands for International Whaling Commision. The age of a whale can be reliably gathered by examining the ear plug in the head of the dead animal, which accumulates as annual growth rings. This racing often causes physical violence between the males and scientist already observed this behaviour in some part of the world, including Gulf of St. Lawrence in Canada and also in South Taranati Bight in New Zealand.Mating and the birth of baby blue whales usually occured in fall and winter in the warmer Southern waters.

Baleen,Blue Whales In 2005, the Australian Government released the first joint recovery plan for blue, fin and sei whales. Start at 1925, the hunting of blue whales increase dramatically and in the 1930 was recorded if some ships were caugh 29,400 blue whales in Antarctic. A. Zemsky and E. G. Sazhinov, “Distribution and abundance of the pygmy blue whale,” Translated by V. S. Gurevich, edited by M. A. Donahue and R. L. Brownell Jr., National Marine Fisheries Service, Southwest Fisheries Science Center, Administrative Report LJ-94-02, pp.

The milk contain 30-50% fat milk and thats why the baby can gain up until 10 pounds each hours and it means they will gain over 250 pounds each days!As blue whales calf, they already identified as largest baby animal because their weight can reach until 4 tonnes and everyday they can gain weight until 90 kilograms instead they will be weaned after 7-8 months.

Soon, blue whales hunting were start in another countries too, such as Iceland (1883), Nefaore island (1894), New found land (1898) and in Spits Bergen (1903).In 1904-1905, first blue whales was taken off in South Georgia. Aguilar and A. Borrell, “Age- and sex-related changes in organochlorine compound concentrations in fin whales (,L. Marsili and S. Focardi, “Organochlorine levels in subcutaneous blubber biopsies of fin whales (,A. V. Weisbrod, D. Shea, M. J. Moore, and J. J. Stegeman, “Organochlorine exposure and bioaccumulation in the endangered Northwest Atlantic right whale (,C. Metcalfe, B. Koenig, T. Metcalfe, G. Paterson, and R. Sears, “Intra- and inter-species differences in persistent organic contaminants in the blubber of blue whales and humpback whales from the Gulf of St. Lawrence, Canada,”,J.