Ocean Acidification and Oyster Farming – TechKnow

Ocean Acidification and Oyster Farming – TechKnow


IT’S NOT EVERY DAY THAT YOU CAN TAG ALONG WITH A CALIFORNIA OYSTER FARMER.>>THAT LITTLE ISLAND IS HOG ISLAND.>>BUT IT’S EXHILARATING.>>THIS IS ONE OF THE WAYS WE GROW OUR BABY OYSTERS.>>THE 15 MILE LONG TOMALES BAY IS PEPPERED WITH SOME OF THE MOST PROLIFIC OYSTER FARMS, INCLUDING THE HOG ISLAND OYSTER FARM. THE WORK IS EXTREMELY DEMANDING.>>HOW MANY OYSTERS ARE IN THERE?>>THAT PALLET RIGHT THERE IS PROBABLY 8,000 OYSTERS.>>THE PAYOFF IS DELICIOUS. CAREYY WHY SAWYER HAS BEEN FARMING OYSTERS FOR OVER 20 YEARS. HIS COMPANY PROVIDES OYSTERS TO THE RESTAURANTS IN THE SAN FRANCISCO BAY AREA.>>EVERYTHING THESE GUYS NEED TO GROW.>>AS YOU CAN IMAGINE, PEOPLE LOVE THEIR OYSTERS. SO THE INDUSTRY HAS BEEN DOING VERY WELL SINCE THE 1970s. UNFORTUNATELY, IN 2006, SOME PROBLEMS BEGAN TO EMERGE.>>WHAT WE’RE SEEING IS ALL THESE LARVAE OR THE JUVENILE OYSTERS, THE ENTIRE POPULATIONS ARE CRASHING, THEY’RE DYING. IT’S ALARMING TO SAY THE LEAST.>>THEY BEGAN HONING IN ON THE REAL CAUSE.>>WHEN YOU HAVE THE ENTIRE LOSS LIKE THAT, THAT ENTIRE CRASH, THAT IS OCEAN ACID FICTIO IFICATION THAT WE’RE TALKING ABOUT.>>OCEAN ACIDIFICATION IS HAPPENING AT LEAST TEN TIMES FASTER THAN WE COULD SEE IN THE RECORD.>>TEN TIMES FASTER?>>ALARMING I AGREE.>>HE STARTED WORKING WITH PROFESSOR TESTA HILL AND U.S. DAVIS’S MARINE LABORATORY IN BODEGA BAY.>>ABOUT 30% WHAT WE PUT INTO THE ATMOSPHERE JUST GETS SOAKED LIKE INTO THAT OCEAN. AND THAT CARBON DIOXIDE CHANGES THE CHEMISTRY OF THE WATER. AND THAT’S WHAT WE CALLED OCEAN ACIDIFICATION.>>AS IT MOVES FROM THE AIR TO THE OCEAN IT BINDS WITH WATER MONTHLY CUNS FORMING WHAT WE CALL CARBONIC ACID, RAPIDLY CHANGING THE CHEMISTRY AND THE CHEMICAL BALANCE OF THE OYSTERS.>>ALL OF THOSE USE COMPLEMENTS OF SEA WATER TO BUILD THIER SHELL. AND THOSE BUILDING BLOCKS ARE CALCIUM AND CARBONATE. ALL THOSE ANIMALS WHO BUILD SHELLS TO ACTUALLY MAKE THEIR SHELLS.>>AMAZINGLY IT COULD TAKE UP TO THREE YEARS FOR AN OYSTER TO USE CALCIUM CARBONATE TO GROW LARGE ENOUGH FOR MARKETS SIZE.>>THESE ARE OUR SMAWLS. IT’S A BIG ENOUGH OYSTER TO PUT ON THE GRILL.>>THE PROBLEM POSES A SERIOUS THREAT FOR FARMERS WHO CAN NO LONGER PRODUCE OYSTERS WHOSE SHELLS DEVELOP. USING INNOVATIVE SENSOR EQUIPMENT AND SCIENTIFIC TESTS, HILL’S TEAM HAS SPENT A YEAR CLOSELY MONITORING THE ACTUAL CHEMICAL WORK IN THE BAY.>>WE’RE MEASURING THE CHEMISTRY OF THE WATER, WE ARE GETTING TEMPERATURE, SALINITY, PH AND OXYGEN EVERY 30 MINUTES FOR THE LAST MONTH IT’S BEEN OUT AND WE’VE BEEN DOING THIS FOR A YEAR STRAIGHT NOW.>>TAFNED TO TH ATTACHED TO THE BOUY. ,.>>FOR A WEEK OR A MONTH, A SEASON, IF A STORM BLOWS IN. THE REASON WHY THAT’S IMPORTANT IS IT’S HARD TO PREDICT AND UNDERSTAND WHAT THE IMPACT OF ACIDIFICATION WILL BE, IF WE DON’T UNDERSTAND THOSE LITTLE FLUCTUATES.>>THE RESEARCH ARE TEAM HOPES TO MAKE THIS A LONG TERM EXR SET.>>THE HOPE IS A LONG TERM SET SO WE HAVE SOME WAY OF TRACKING OCEAN ACIDIFICATION.>>HAS IT TOLD US ANYTHING ABOUT THE BAY?>>IT’S TOLD US A LOT. ENTIRE MORALITIES, WE HOPE TO HAVE DIFFERENT STRATEGIES.>>LIKE THE FAMOUS MIX COVE.>>ON A BUSY DAY WE GO THROUGH ANYWHERE FROM 1600 TO 2,000 WHICH IS A LOT OF SHUCKING.>>CHEF PERKINS HAS SEEN THE SHORTAGE OF OYSTERS IN CALIFORNIA IN THE RECENT YEARS. THAT’S TROUBLING FOR MULTIMILLION DOLLAR EATERIES, NATION.>>ARE YOU WORRIED ABOUT YOUR SUPPLY?>>SURE. UNLESS IT’S CONTROLLED WE’RE NOT EVER GOING TO KNOW UNTIL WE DON’T HAVE OYSTERS ANYMORE. THE SCIENCE HAS TO BE RESEARCHED TO SEE IF WE’RE GOING TO BE THE LAST GENERATION THAT’S GOING TO HAVE ANY OYSTERS AT ALL.>>THAT’S EXACTLY WHAT HILL AND HER TEAM ARE LITERALLY RACING TO FIND OUT. EVEN IF IT IS JUST HELPING TO SOLVE ONE 15-MILE PART OF THE SCIENTIFIC PUZZLE.>>AND IF THERE ARE A LOT OF IDEAS ABOUT HOW TO PROTECT SMALL SCALE ENVIRONMENTS LIKE WHAT WE’RE LOOKING AT HERE, BUT THOSE ARE PRETTY SMALL PIECES OF THE PIE COMPARED TO THE GLOBAL ISSUE OF OCEAN ACIDIFICATION WHICH CAN ONLY BE SOLVED BY ONE SOLUTION – BY REDUCING OUR EMISSIONS OF CARBON DIOXIDE.>>Only on Al Jazeera America>>A team of scientists are taking their inspiration from nature…>>Technology, it’s a vital part of who we are>>They had some dynamic fire behavior…>>…and what we do…>>Transcranial direct stimulation…>>Don’t try this at home…>>TechKnow’s team of experts show you how the miracles of science…>>This is my selfie, what can you tell me about my future?>>…Can effect and surprise us…>>Sharks like affection…>>Catch new episodes of TechKnow on Al Jazeera America check your local listings or visit aljazeera.com

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3 thoughts on “Ocean Acidification and Oyster Farming – TechKnow

  1. Thank you for this vid.. the fact that only 1 other comment is here absolutely SHOCKS me… STUPID PPL IN DENIAL WILL NO DOUBT PERISH FIRST BECAUSE THEY WON'T BE READY FOR THE SMACK DOWN COMING TO US BY GOD!! and rightfully so😇

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