Class Note for GEOS 212 at UA
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This 9 page Class Notes was uploaded by an elite notetaker on Friday February 6, 2015. The Class Notes belongs to a course at University of Arizona taught by a professor in Fall. Since its upload, it has received 17 views.
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Date Created: 02/06/15
Conservation of the marine envrronment Dr Katrina Mangin Department or Eculugy and Evulutiunary Elulugy manglng Email arlzuna Edu Lion steak Eagle Pie Consequences Loss ofbiodiversity Human health risks 7 Mercury in fish power plants 7 Swimming in dirty Water fertilizers 7 Loss or fresh Water on islands sv lntruSlOn pollution Habitat destructionloss e 50 us population lives on coast development 7 Coral reers dying global Warming 7 Ocean rioor destroyed trawling e 150 dead Zones in 2004 double Since 1990 UN data fertilizers AY quot What the threats to the oceans Over shing Coastal development and habitat loss Runoff from land fertilizers oil sediment Pollution and garbage in sea Invasive species Climate Change seas are warming What can we do Stop over shing Regulate coastal development and shing Identify threats amp culprits Document loss of marine habitat and diversity Establish marine reserves What can we do Involve all stakeholders in the solutions Educate next generation so that they care Support conservation efforts with your and votes Four examples Tuna shery Worldwide decline in predatory sh Gulf of California shrimp shery Gulf of California working with shermen Tokyo fish market 5 mllllun pounds or seafood per day 4mm different types or seafood lrnpurtsfrurn on countries on 6 continents V 39 quot acumenquot mmwm mum39 Mommy andth Prir s t mwemt Mav mus my 7004 Yen m mm 565 see Pei W m m whale m Que wow mummy Tuna is the most traded fishery in The tuna dolphin controversy the world 7 rnliilun duiphlns have been killed by tuna fishing slhEEthEiatE195Ds 3 million tons of catch per year 39 6 billion per year Europe is top buyer followed by US for canned tuna Heinz dominates 50 ofthe market Duiphlns un surface yeiiuwmn tuna beiuvv Unique relationship between tuna amp Eastern Tropical Paci c Tuna Fleet dolphin exploited since 19505 1950s dolphin setsquot on tuna began 1959 590 sets on dolphins 39 F39Shers use dOIPh39 5 to quot30k and Chase mile long nets and hydraulics introduced the tuna then encircle both with nets 1960 5400 sets on dolphins Purse Wines haul in both killing the helicopters and speed boats introduced dolphin and Saving the tuna 1965 43673 tons oftuna caught 1980 189426 tons oftuna caught dolphin setsquot setting nets around dolphins in order to catch yellovmn tuna Three species ofdolphin in eastern tropical paci c are of cially listed as depleted northeastern offshore spotted dolphin eastern spinner dolphin coastal spotted dolphin MMPAWallne Mammal Pmlsallan Act Dolphin safe tuna Mexico protested embargo product is not environmentally harmfulquot 1995 Mexico and other nations can sell dolphi Set minimum levels for dolphin kills 2002 Evans US commerce secretary dolphin safequot label weakened again39 dolphin sets OK as long as observers on ships Dolphin safe tuna Most tuna shing is still done with dolphin sets US no longer has tuna eets In EU no dolphin safe labels are required set tuna under the dolphin safe label History of dolphin safe tuna label 1980s US tuna eet can not encircle dolphins US embargo against other countries no dolphin setting on tuna 1990 label on tuna cans Judge upholds de nltlnn m unlpmnale tuna label mm lsss msquot MAN29W Ma mama m mm plmskml am mum ms mainmammal m mm a m l acumen mm mm mm mwma m u 1 qu u mamaxv annulaulguwwlamu mmlaaapm mam navinn mlmww um WWW smlmmmlmm MtvAwmus39vatn caWCvgtblnlaltlcle cvr vllalnemsalchlvelz ll m statMQ EDml Z m Dnlphin setsvs Lng Fishingfm39 Tuna mun nets Set an dnlphin purse Saints sun dalphms sz Bullish 1n seaturtles n sharks mun nets using tags dnlphinamfe z dulphms 554 bullish mz sea turtles 13958 sharks Data 39um lntematmnal Tmplcal Tuna Cummlssmn Rapxd mamas decline ufpredatur sh Blue Planet dvd cummumnesquot Myers RA ma Warm Name v 423 lSMayZEIEIK m What they cuncluded Only Junu nflarge pmmnry sh m 1211 in mewmm39s ncmns l ElaEKZblgEyE Yelluvvyelluvwn I Blue bluefln Bree lbacure Wmteblllflsh I h I h Deanne m all means IBSUS39ZUUU Myers 4ampme znnz LLL v w Gulf of California Gulf of California ngh bludlverslty and Endemlsm Why dn diverse Culuvadu R lvevDella wam and numenls Lung nanuw sear lsulaled m a lung llme Many lslandsr mlnl Galapagus Ememe Wes nghlyseasunal desen sea Many habnallypes Shalluwveefsand bays deeplvenches Setan mnsldivelse sea in Ihewnrld WW 395 Relalwelypmme 7 EDDEI named macvufauna mm m eye 7 was mvenemles 7 endemlcs lZBmvenebvales 1o venelzvales 7 7 specles ufsea mules 7 24 meme mammals Vaqulla havbuvpuvpmse 11 at riskquotspecies of sh 5 large bass endemic All 7 turtle species threatened or endangered Gulf of California Harvest on the All marine mammals threatened Norm Vaquita found only in gulf endemic Shrimp shery For each pound of shrimp ten pounds of bycatch Scraping of ocean floor by trawling bycatch incidental catch that is thrown away Trawling for shrimp Trawling for shrimp Working with the fishermen Murex fishery in Gulf of California 39Commen39cal divers in Puerto Penasco Sonora Mexico These divers collect murex snails in the summer along with several ether species Easehnes 5mm mm mm mm stehneszm usedmdammethe mm a msyms mudu bzsehnehvzny qwenhzbmzt M be whxwzsthem my humzmmvzn OthErUA manna smence What 5 a smmng nasenm 5mm bzsehneszvedvezhmmz 5w Mum mum dung
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