sp01u2p2 - Unit Two Fisheries Management Unit II Fisheries...

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Unit Two Fisheries Management Project Oceanography Spring 2001 25 Unit II Fisheries Management On the cutting edge…. . The Florida Fish and Wildlife Conservation Commission (FWC) is responsible for one of the premier stock enhancement research facilities in the southeastern United States. At this saltwater facility, one project focuses on increasing the red drum stock in Tampa Bay. Through the use of cutting edge technology, researchers are rearing hatchery animals from wild brood stock and releasing them into the environment. Scientists use four unique tagging systems to determine the optimum release place and size for these fish. Project Tampa Bay is a partnership between FWC and Mote Marine Laboratory. Stock Enhancements and Hatcheries Lesson Objectives: Students will be able to do the following: Identify the components of a fish hatchery Describe the breeding process for red drum Recognize four types of fish tags Key concepts: habitat, rate of mortality, aquaculture, hatchery Stock Enhancement The populations of commercial and recreational fish species in our waters is rapidly decreasing due to increased fishing pressure and habitat destruction. As our human population grows, more people are using the waters for boating, swimming, and fishing. These activities present special problems for fish and their habitat . Technology has allowed the development of better fishing equipment including better ways of finding fish, graphite rods, super strong fishing line, and a wide variety of artificial baits and lures. These advances make fishing a more efficient enterprise. Habitat destruction from humans and natural processes has also created additional concern. As litter and toxins are introduced into the near shore estuarine nursery areas, many juvenile fish succumb to changes in water quality. Delicate sea grasses cannot withstand the strong winds associated with storms or the destruction caused by speeding boats and other recreational vehicles. In the past, most fish stocks have been able to sustain themselves through enforcement of fishing regulations and habitat management. Today the rate of mortality exceeds the
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Unit Two Fisheries Management Project Oceanography Spring 2001 26 natural possible birth rate potential for some stocks with these traditional methods alone. Researchers have had to look for additional ways to increase fish populations so recreational and commercial fishermen can continue to catch fish. Aquaculture is one of the fish enhancement programs used by scientists. Aquaculture Aquaculture is the growing of fish, shellfish, or aquatic plants to supplement the natural supply for recreational, commercial and scientific purposes. The hatchery is the farm where this cultivation takes place. At the hatchery a variety of natural or artificial areas may be used to contain the stock. These include ponds, tanks, pools, or cages hung in natural waters. In recent years, advances in aquaculture have allowed the rearing of freshwater and
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sp01u2p2 - Unit Two Fisheries Management Unit II Fisheries...

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