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Signature Seafood Winter 2008-2009 Farm-raised Striped Bass Fact Sheet Illustration courtesy of the Northeast Fishery Science Center Common name: Striped bass, striper Latin name: Morone saxatilis Characteristics: • In South Carolina, striped bass are a prized gamefish and high quality food fish with a mild sweet taste and firm flaky texture. Wild striped bass caught in South Carolina may not be sold, but farm-raised striped bass is a very good alternative when sourcing local seafood. • Striped bass are suitable for aquaculture because they can be successfully grown in fresh, brackish, and salt water. • Cultured fish are particularly well suited to the restaurant trade because of consistency in size, yield and quality. Source: • Swimming Rock Fish Farm, a division of South Santee Aquaculture, Meggett, SC • Contact phone number: 1-888-254-2387 Aquaculture: • Most farm-raised striped bass are actually a hybrid of striped bass and white bass, but Swimming Rock Fish Farm is currently raising full-blooded striped bass. • Striped bass are raised in brackish water ponds, then transferred to tanks of saltwater to flush away the muddy flavor before harvest. • Juvenile fish are reared in hatcheries and sold to fish farms, such as Swimming Rock Fish Farm. Farms stock juveniles of similar sizes to avoid cannibalism and decrease size variation at harvest. • Juveniles complete their first year of growth (reaching approximately 0.5 lb) in a nursery pond. The fish are then moved to a grow-out pond, tank or raceway for the second year. Striped bass are harvested at 18 to 24 months of age and at weights between 1.5 and 2.5 pounds. • They are fed a commercial salmon or trout feed and exhibit food conversion ratios of 2 to 1 or less (highly efficient in comparison to most livestock). • To harvest, the pond is seined and fish are herded into a holding net. They are weighed and placed in a transport tank and are delivered live to Charleston-area restaurants. At the restaurant, the fish are transferred from the tank to a cooler filled with a slurry of ice and salt water where the fish are slowly chill-killed, yielding an extremely fresh product. • The menu presentations for Striped Bass are sometimes called “Palmetto Bass”. Sources: Personal communication with Kevin Hutchinson and Rick Eager of Swimming Rock Fish Farm, 2007. Visit our website for more information on swimming rockfish farm 

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Nile “Tilapia” Oreochromis niloticus niloticus (Nile Tilapia) Family: Order: Class: Fish name: Max. size: South Santee Aquaculture, Inc. has been raising Tilapia in South Carolina since 1989 for food fish, floating aquatic plant control, (duckweed) and algae control. Photo: Kevin Hutchinson, CEO-Fishery Biologist Cichlidae (Cichlids), subfamily: Pseudocrenilabrinae Perciformes (perch-like) Actinopterygii (ray-finned fishes) Nile tilapia Published weight: 4,324 g. max. reported age: 9 years. The average size that South Santee Aquaculture, Inc. sells for food fish is 1-2 lbs. The fish are also used for continual algae and aquatic floating plant control in ponds. The fish are usually stocked between 3-6 inches. The average stocking sizes are around a ¼ lb. each. Environment benthopelagic; potamodromous; freshwater; brackish water can tolerate no more than 14 ppt; depth range is usually no more than 15 feet. Climate: tropical; 14 – 33°C (58 - 88.8 °F); 32°N - 10°N Importance fisheries: highly commercial; aquaculture: commercial; price category: Food Fish price is $3.65 per lb. For algae control stocking is $1.60-$2.60 per Growth: Tilapia can grow up to 1.7 lbs. in 1 year using 32- 46 % protein feed. Distribution Africa: coastal rivers of Israel; Nile from below Albert Nile to the delta; Jebel Marra; Lake Chad basin and the rivers Niger, Benue, Volta, Gambia and Senegal. Widely introduced for aquaculture, with many existing strains. Several countries report adverse ecological impact after introduction. Morphology: Dorsal spines (total): 16 - 18; Dorsal soft rays (total): 12 - 13; Anal spines: 3; Anal soft rays: 9 – 11; Vertebrae: 30 – 32. Genital papilla of breeding male not tassellated. Jaws of mature male not greatly enlarged (length of lower jaw 29-37 % of head length). The most distinguishing characteristic of the species is the presence of regular vertical stripes throughout the depth of caudal fin. Margin of dorsal fin grey or black. Vertical bars in caudal fin 7-12. Biology: Occurs in a wide variety of freshwater habitats like rivers, lakes, sewage canals and irrigation channels. Mainly diurnal. Feeds mainly on phytoplankton or benthic algae. Marketed fresh and frozen or live. Oviparous. Mouthbrooding by females. Extended temperature range is 8 - 42°Cۜ (46.4-108.4° F), natural temperature range 14 - 33 °C (58-88.8° F). Optimal breeding is 86° F.