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Brian SchusterNC State University
#3: Learn about the oceans•Helps you choose your major in college•Gives you a broader perspective of the world•Prepares you for a career in the marine sciences and other fields
#5: Win prizes and scholarships
#2: It’s fun•Travel to distant states for free, such as Alaska•Top 4 at nationals go to foreign countries, such as Costa Rica
#1: Mr. Hames is the coach
#4: Get college credit
What is aquaculture?Aquaculture is the cultivation of aquatic
organisms in a controlled environment for harvest or release into the wild
Mariculture: marine aquacultureOcean ranching: rearing in hatcheries, then
releasing
US Aquaculture10th in total production in 2004 (UN FAO)#1 is Norway20% in US is marine
Types of AquacultureOpen water cagesRecirculating closed-water systemsPonds: ancient Chinese traditionRaceway: constant linear flow
Importance and ProblemsFeedstocks are unsustainably fishedFish are a major source of protein around the
worldSalmon oil in biodiesel productionOverfishing:
52% of fish stocks are fully exploited20% are moderately exploited17% are overexploited7% are depleted1% is recovering from depletion
80% of seafood is imported into US
History of AquacultureChina & Egypt: centuries before Year Zero
Carp in pondsRomans: oysters1733: German successfully fertilized eggs
and raised the fishNOAA’s Aquaculture Program was revived in
2004
Tilapia tanks
Atlantic sturgeon: grown at LaPaz for caviar
Approximately 15,000 tilapia grown from eggs at the Fish Barn
Mechanical filter with no filter screens on it
Feeding time: tilapia feed is high in soy protein
Chester takes a water sample to check the pH
Dennis wrangles the fish into the other section of the tank
The new aquaculture facility
Juvenile tilapia swarm to humans for food
Feces settle after the fish feed
Farm-raised abalone
Lacquered abalone
Raised inland to prevent evasive spread on the coast
Sturgeon tanks at LaPaz
Another species of sturgeon
A necropsy is done on an unhealthy sturgeon
Tasting and smelling the sturgeon meat
Questions?Aquaculture: behind-the-scenes equipment
and technologyBiological and Agricultural EngineeringBiodiesel production using algae
Referenceshttp://www.fao.org/docrep/009/a0874e/
a0874e00.htmhttp://aquaculture.noaa.gov/us/welcome.htmlhttp://overfishing.org/http://www.sciencedirect.com/science?
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