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Marine Bio To Me… “A good warrior learns to respect the seasons and cycles of life,” he said. “They’re part of nature; they’re part of you.” Author: Beattie
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A synthetic view of our ocean planet © digitalife/ShutterStock, Inc.
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Our marine life is the stuff of movies!
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…and fables… Aug. 1, 2008: “The Montauk Monster”
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Why are you here? What is Marine Biology?
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Marine Biology Study of organisms that live in the ocean Subset of Biology Many subdisciplines
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Marine Biology Why is it important?
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Marine Biology Why is it important? –Food, medicine, raw materials, recreation –Disease, attacks, damage –Effect the global ecosystem –Recreation, education –$$$$$$ ($20 trillion/yr!) –71% of the earths surface is WATER!
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Marine Biology It is a science, “a general science of biology, but applied to the sea.” –There is a reason why things happen –Discover these reasons by systematic methods
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History of Marine Biology Ocean explored for food, as trade routes, wars, etc. Aristotle (4 th century BC) – first marine biologists
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History of Marine Biology Many voyages of exploration Captain James Cook (European, 1700’s) –First to include a fulltime naturalist
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History of Marine Biology Charles Darwin –Naturalist on HMS Beagle (1831) –Atolls, plankton, barnacles
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History of Marine Biology Edward Forbes –Dredges the Ocean floor (1840’s & 1850’s) –Azoic Theory – no life below 2000 ft. (pg. 359 text)
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History of Marine Biology First Voyages ever to specifically study the ocean (19 yrs. to publish, 50 volumes) Challenger Expedition (1872-1876): measuring systems used, species samples
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The Worlds Oceans The Challenger Expedition Route(s)
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The Ocean Ocean Facts: Covers 71% of the earth’s surface Accounts for 97% of the water on earth (rest in land ice, groundwater, lakes & rivers) Average depth = 3,796 meters (12,451 feet) (deepest = Mariana trench 11,022 m or 36,163 ft) Average temp = 3.9 o C (only 39 o F)
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1? 5? Oceans Pacific Atlantic Indian Arctic Antarctic, Southern Ocean
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History of Marine Biology Marine Laboratories –Stazione Zooligica – Naples Italy (1872) –MBL & Woods Hole Oceanograohic Institution– Massachussets –Scripps Institution of Oceanography, CA –Friday Harbor Marine Lab, Washington Allowed long term observation of living organisms
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Research Vessel
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History of Marine Biology SONAR –Developed during WWII SCUBA –After WW II – invented by Emile Gagnan & Jacques Cousteau
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Marine Biology Today Labs and Ships still important Shift from early observations & descriptions to more detailed studies Submarines - Alvin ROVs Satellites & computers
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Figure 1.03 Plankton tow net
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“Alvin,” Deep Sea Sub.
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Scripps R/V “Flip”
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“Flipped!”
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Figure 1.11 “Aquarius” FL Keyes underwater lab
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John Steinbeck, Ed Ricketts, see text
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