Furthermore, Paul was thrown into the water by the sealers and later kicked out of Greenpeace because he had used violence, which was a rule not to use force. Nonetheless, Paul Watson set up his own group , Sea Shepherd Conversation Society. This group went all over nations who proceeded whaling and they tried to ban whaling from many protests. Within a whole year, he cleared out "pirate ships" in the Altantic Ocean. In addition, for the next ten years of Watson's life governments and NGOs would work with him to work from hunting the whales to saving the whales.
They have no natural enemies except man and power boats which are responsible for most manatee deaths- (in 1990, 218 manatees or 12 % of the total population were killed by boats), though the red tide (toxins released from the bloom of dinoflagellates) of 1982 and1996 killed over 15% of the population. It is suspected that environmental pollutions create disease vulnerability in marine mammals with manatees being no exception. An example is when 10,000 seals died in 1988 in Denmark and Sweden from viruses related to canine distemper. High concentrations of PCB’s were detected in necropsies of these seals, presumably from the water and fish they ate. Other threats include accidental
They were overhunted in the 18th and 19th centuries and their population dropped from 300,000 worldwide to only a few thousand in Alaska. (Cohn, 1998) The 1911 International Fur Seal Treaty saved the otters and other marine mammals from extinction. (Bodkin 2002) The sea otter population is very important to many parts of the ocean’s ecosystem because they help keep sea urchin populations at a safe level. Too many sea urchins mean decreased kelp beds. Beyond the overhunting, there are many other threats to the sea otter population.
SO what the killer whale does it dives in the water and become submerged in the water for more than 15 minutes so they can use echolocation and listen where their prey is 3. Another selective pressure is the pressure that increases as they dive. Unlike human scuba divers, a whale doesn’t breathe air under pressure. It inhales only at the surface. Furthermore, in diving mammals, the alveoli collapse at about 3 atmospheres of pressure (about 90 feet), forcing air into the bronchioles (rigid air passages), a region where gases are not exchanged.
Unfortunately this is what happened on March 24, 1989 in Prince William Sound, Alaska. Years ago Exxon Mobile Corporation was the world’s biggest oil company, carrying crude oil to places all over the world and today it is just another company who failure to handle the situation with honor and disastrous decisions ended in millions and millions of dead animals and fishermen. This paper will express and analyze The Exxon Valdez oil spill as well the damages it caused to the coastal environment along southern Alaska’s shore, issues in the case, court decision, and the significance of the oil spill. Exxon Valdez: Who? Bills?
The North Pacific Gyre: Recycling is Dire There’s a new continent in the Pacific Ocean! This continent has been called many things from the great pacific garbage patch to Trash Island. This swirling mass of plastic bags plastic bottles and other non perishable items has been accumulating in the Gyre for years. Caught in the northern Pacific currents that form the N. Pacific Gyre. This Largely covered area of plastic remnants that have been broken down to small pieces have a damning effect on the wildlife that depends on the Gyres currents for food.
Out of all the marine mammals that would be affected, the bowhead whale would feel the worst affects of drilling. It is currently endangered and still making a recovery from nearly becoming extinct. Of the 10 thousand bowhead whales that still exist, the majority are found in the Western Arctic. These whales are extremely sensitive to noise disturbance which can damage migratory paths and interfere with breeding and nursing
Blockades Both countries used their navies to blockade the enemy ports to stop supplies getting through. Britain relied on other countries to bring in food and supplies and Germany knew if their u-boats stopped this trade then Britain would starve. February 1915 Germany said that all merchant ships entering/leaving Britain would be sunk. This was optimistic as there were 15000 sailings a week to and from British ports and the Germans had only 21 u-boats. However by 1917 the Germans had 200 u-boats and were sinking 1 in 4 of the ships heading to Britain.
This kind of brutal treatment of sharks is being tolerated all over the world and with 90% of the large shark population already wiped out, sharks are being depleted faster then they can reproduce. This puts a severe threat on marine ecosystems worldwide. Sharks play a vital role in the ecosystem, they have shaped marine life for 400 million years and are essential to the health of the planet, and ultimately to the survival of mankind. Sharks are known as apex predators, With fewer sharks around the species they prey on, such as cow nose rays have increased in numbers and in turn masses of cow nose rays are wiping out the bay scallops. This then has a large impact on the economy of local communities who rely on these scallops for a steady income.
Name: Isaac Mitchell Specific Purpose: My purpose is to persuade the class why they should recycle. Thesis: to persuade and educate the class on why they should recycle, the problems and the causes and possible solutions on the problem. =================================================================================== I. problem is over use of supplies and pollution of the earth. A. one million sea creatures killed because of plastics and other garbage floating in the oceans every year. In fact, scientists report that this problem is so serious that virtually all seafood now contains plastic.