WildlifeWeek12.pdf FW 104
Popular in Wildlife Ecology and Conservation (GT-SC2)
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This 4 page Class Notes was uploaded by Mikaela Maldonado on Saturday November 14, 2015. The Class Notes belongs to FW 104 at Colorado State University taught by Nicole K M Vieira; Ann L Randall ; Tyler Ryde Swarr in Fall 2015. Since its upload, it has received 35 views. For similar materials see Wildlife Ecology and Conservation (GT-SC2) in Animal Science and Zoology at Colorado State University.
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Date Created: 11/14/15
Marine Wildlife Primary productivity- the rate at which primary producers capture and store energy in given interval Gross primary productivity – the total rate of photosynthesis for an ecosystem during specified interval Net primary productivity – the rate of energy storage in plant tissues minus metabolic activities that use energy Photosynthesis & respiration Open oceans have one of the lowest production rates and estuaries have one of the highest per square meter Open oceans cover 71% of Earth’s surface Pelagic and benthic zones One simple ocean zone classification is between the water and the ocean floor Benthic is tied to the ocean floor- benthos species Nekton – pelagic species – water pelagic species Planton Float Zooplankton (small animals) Photoplankton (algae) Nekton Actively more the current Fish (vertebrates) invertebrase- squid Benthos – Sea floor Coral (stuck) or crab (moving) Conservation Issues Point Source Pollution Specific source identified – sewage Clean Water Act 1977 Non Point Source Pollution Unregulated runoff from land Sources? Fertilizers Gas, oil, antifreeze, pesticides Eutrophication Algae blooms Hypoxic zone – low oxygen Marine Debris Illegal dumping or accidental loss 80% of debris originates from onshore recreation and tourism 75 tons of trash each week in LA Last Mylar balloon : centuries Plastic bag : centuries Aluminum can L 200-500 yrs Plastics 90% of marine floating debris 46000 pcs/sq mile gyres wind currents create eddies that hold the debris 6x more plastic than plankton plankton produce more o2 than all life on earth offshore entanglement swimming/feeding problems infections drowning mammals ingestion blockage false satiation toxins sea turtles believe plastic bags are jellyfish Legislation Marine Pollution – MARPOL 73/78 Prevention of pollution from ships One of the most important international marine environmental conventions Designed to minimize pollution of the seas, including dumping, oil and exhaust pollution Signed in 1973 and updates in 1978 As of May 2013, 152 states Problems still with international nature of mairtime shipping London Convention Industrial nations agreed to ban ocean dumping of industrial wastes and radioactive wastes Cant take land wastes anymore and toss them to see International International Whaling Commission 1946 International concention Regulation of Whaling Conservation of whale stocks Orderly development of whaling industry International Union for Conservation of Nature 1948 Red List of Threatened Species Marine Mammal Protection Act 1972 all marine mammals in waters under US jurisdiction Endangered Species Act NOAA and USFWS Answers for the Study Guide Questions B B C D C B D B B A B D B E D B D E E D D D C A A B B C D E B C A F F T F T T T F T T F F T F T F F T