. Coast watch. Marine resources; Oceanography; Coastal zone management; Coastal ecology. Photo by Doug Yoder. Workshop participants heat-shock fertilized eggs Wildlife Resources Commission. (All fish culture operations require per- mits.) Fishery biologist Bill Smith says the commission will consider the species you want to raise and the potential effect on nearby natural watercourses. If you divert water from a stream or river, you must return water to that watercourse. And, the commission wants to be sure none of the cultured fish can escape into the natural watercourse and possibly in- bree
. Coast watch. Marine resources; Oceanography; Coastal zone management; Coastal ecology. Photo by Doug Yoder. Workshop participants heat-shock fertilized eggs Wildlife Resources Commission. (All fish culture operations require per- mits.) Fishery biologist Bill Smith says the commission will consider the species you want to raise and the potential effect on nearby natural watercourses. If you divert water from a stream or river, you must return water to that watercourse. And, the commission wants to be sure none of the cultured fish can escape into the natural watercourse and possibly in- breed with natural stocks. Now, you're ready to decide what sort of operation you want. Do you want to set up your own hatchery and raise fish to the fingerling size? Or do you want to buy fingerlings and raise food fish? If you're going to sell the fingerlings as "trained-to-feed," you'll need pools where you can teach them to eat a pel- leted food. Trained-to-feed fingerlings command a higher price, says Rouse. You may opt to sell your excess fin- gerlings, retaining enough to raise as food fish. In that case, you'll need 1- to 5-acre ponds constructed for seining and draining. A large farm pond with a sufficient source of water would suf- fice. If the pond is too deep for seining, you may be able to float net pens and keep the fish contained. To get maximum production from the ponds, you'll need an aeration system to maintain the oxygen levels in the water. And you should invest in an oxygen-monitoring kit. The fish will have to be fed two to three times a day, either manually or with an automatic feeder. The feed for the fish is perhaps the greatest expense you'll encounter—as much as 40 to 50 percent of your costs. Depending on the feed conversion rates, it may take as much as 25,000 pounds of food to yield 10,000 pounds of fish. At 20 to 25 cents a pound, the feed costs could add up to $6,250. All factors considered, Hodson estimates hybrids can be raised for abou
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