Ecology 6th Edition by Charles Krebs

Exercise 10

In the northern Gulf of St. Lawrence, cod (Gadus morhua) numbers have been steadily declining for the past 25 years, while one of their main prey species, northern shrimp (Pandanus borealis), have been increasing (Worm and-Myers 2003). Plow strong is this observation as a test of the hypothesis of predator limitation? What other data would you like to have to test this hypothesis? Worm and Myers (2003) discuss this question.