Figure 54.13 presents a partial food web for the
Chapter 0, Problem 10(choose chapter or problem)
Figure 54.13 presents a partial food web for the Chesapeake Bay estuary. Another important species in Chesapeake Bay is the blue crab (Callinectcs sapidus). It is an omnivore, eating eelgrass and other primary producers as well as clams. Blue crabs are also cannibals. In turn, the crabs are a preferred food source for the endangered Kemp's Ridley sea turtle and, of course, for people. Based on this information, draw a food web that includes the blue crab. Assuming that the top-down model holds for this system, what would happen to the abundance of eelgrass if people were banned from catching crabs?
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