Giant clams synchronize their reproduction with the phases of the moon. During these reproductive bouts a single clam can release approximately 500 million eggs to be fertilized in the water column by sperm released from other clams. However, the population sizes of giant clams are very low because many of the fertilized eggs and larvae will be eaten by fish in the local area. Based on this information, what can be said of the reproductive strategy of the giant clam?

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Quizplus · Accepted Answer

Giant clams exhibit an r-strategist reproductive strategy, characterized by the production of a high number of offspring with the expectation that only a few will survive to adulthood. This is evident from their release of approximately 500 million eggs during reproduction, despite the high predation rates on fertilized eggs and larvae.

Giant Clams Synchronize Their Reproduction with the Phases of the Moon