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?

_ob=ArticleURL&_udi=B6WXV-4R8KT7B-1&_user=10&_rdoc=1&_fmt=&_orig=search&_sort=d&_docanchor=&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=6e98ed663d231a8e6fff6eb0050e0bdc