The Japanese and Norwegian violation of the International Whaling Commission’s (IWC) moratorium on whaling are two distinct issues in my mind. In 1986 the IWC imposed a moratorium on whaling (IWC. n.d.) in order to protect the worldwide population of whales. I contend that the protection of whales, or any other species which are in danger of extinction is a positive and necessary step, but the protection of thriving species is unnecessary. Norway only allows whaling of minke whales (fisheries…
I do agree with the Norwegian and Japanese position on permitting the hunting of non-endangered species of whales as a cultural exemption. Many countries were founded on whaling including the United States. Whales provided a large resource of food, fuel and luxuries such as perfume. It is still a part of the United States ' culture as there are Native American tribes who still hunt to this day as part of their culture. If you take a moral stance against non-endangered whale hunting then you…
‘The Cove’, directed by Louie Psihoyos, which initiated a discussion and debate towards the issue of whaling. ‘The Cove’ follows an activist, Ric O’ Barry, who joins forces with Psihoyos and the ‘Ocean Preservation Society’ to expose the brutal cetacean hunting methods and commercial whaling within Taiji, Japan. The crew exposed the horrific treatment and inhumane killing methods of animals by the Japanese fishermen in Taiji. The documentary showed Japan’s arrogance and selfishness through the…
CePV-1 has been recorded in odontocetes and CePV-2 has been discovered in one species of mysticetes. However, another study has split the cetacean pox virus into CePV 1-6 suggesting that many more strains of these viruses are occurring in cetaceans (Barnett et al 2015). The appearance of skin lesions on cetaceans look like dark pigmented rings or tattoos that are flat against the skin (Bracht et al 2005, Bressem et al 2009). Lesions usually appear on their dorsal side, fluke…
Your subtopic, assigned to Paper Group 7, is “Adaptations in diving marine animals: cetaceans, pinnipeds, and penguins.” Birds and mammals have relatively high metabolic processes and require constant access to high quantities of oxygen for survival. If the brains of these animals are deprived of oxygen for even short periods of time, death may occur. Even though most humans can only hold their breaths for less than a minute, some marine air breathers have evolved strategies that allow them to…
easily through the water. They are the only mammal that has adapted to life in the open oceans. Whales are considered to be "cetaceans which means various aquatic life chiefly marine mammals of the order cetacean, including whales, dolphins and porpoises, characterized by a nearly hairless body, broad flippers and a flat notched tail. There are 75 species of Cetaceans, but the two groups are toothed whales and baleen whales. Toothed whales are predators that use their peg-like teeth to catch…
pod. According to “5 Arguments For Keeping Captive Cetaceans,” “Those who do not have a pod cannot join another at random.” The orcas, if they were to be released from captivity, would become isolated from the orca social structure; orca social structure is one of the…
Blue Whale The blue whale Balaenoptera musculus is a marine mammal belonging to the baleen whales Mysticeti. The blue whale is the largest animal to have ever existed. The blue whale can mature up to 100 feet long and can weigh up to 173 tons. The diet of the blue whale consisits of mostly small crustaceans known as krill but also eat small plants and fish. The blue whale’s body type is long and slender and their body shade varies from greyish blue to a dark navy blue. The whales dorsal can…
A tale of modern whales: Divergence and radiation of Neoceti during the Oligocene period likely driven by environmental changes in Southern Oceans ZOO*4910 Integrative Vertebrate Biology Group 04 Candace Flynn (cflynn@mail.uoguelph.ca), Melissa Westaway, Katherine Znotinas, and Daniela Banda Marin 2 November 2014 Abstract Reasons for divergence within the animal kingdom is heavily debated across many orders. Macroevolution in Cetacea has been attributed to a variety of…
Evolution says that organisms would change their type by natural selection but this is only happened in microevolution. I will explain what is microevolution? Microevolution is about that the variation among the species. With environment changing, some species would change their type to adapt environment. But no matter how they change, they are still same species. This is microevolution. Evolutionist only can verify microevolution is true. However, can evolutionists prove that macroevolution is…