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.Mark-recapture estimates show that a lake in a state recreation area is home to approximately 2000 bluegill and 200 bass at the =start of the year. At the request of the fishing public, the lake managers introduce crappie, another predatory fish species, into 'the lake. =Bluegills eat small invertebrates, young fish, and fish eggs. Bass and crappie, which both grow larger than bluegills, eat fish and sother aquatic animals smaller than themselves. A year later the lake managers do a mark-recapture study and find that both the bluegill and bass populations have declined. They estimate that there are about 500 bluegill and 90 bass. All other environmental variables remained the same between the two years. What conclusion can be drawn from the data the lake managers gathered from the mark-recapture study? The crappie outcompeted the bass for food and breeding sites. The crappie consumed large numbers of both bluegill and bass. The crappie reduced bluegill numbers, leaving little food for the bass. ) The crappie adversely affected the bluegill and bass populations