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Biology

Trade-offs Between Growth and Reproduction in Iteroparous Fish

Quick fact

In many iteroparous fish, reproducing can reduce growth by up to 30% in that season, and the energy spent on eggs or sperm is energy not available for the fish's own body growth and maintenance.

Why this is interesting

Imagine a fish that must decide each year whether to grow bigger or to produce eggs. How do these choices shape its entire life?