Brian Schuster NC 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 aquaculture Ocean ranching: rearing in hatcheries, then releasing

US Aquaculture 10 th in total production in 2004 (UN FAO) #1 is Norway 20% in US is marine

Types of Aquaculture Open water cages Recirculating closed-water systems Ponds: ancient Chinese tradition Raceway: constant linear flow

Importance and Problems Feedstocks are unsustainably fished Fish are a major source of protein around the world Salmon oil in biodiesel production Overfishing: 52% of fish stocks are fully exploited 20% are moderately exploited 17% are overexploited 7% are depleted 1% is recovering from depletion 80% of seafood is imported into US

History of Aquaculture China & Egypt: centuries before Year Zero Carp in ponds Romans: oysters 1733: German successfully fertilized eggs and raised the fish NOAA’s Aquaculture Program was revived in 2004

Aquaculture in North Carolina

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 technology Biological and Agricultural Engineering Biodiesel production using algae

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