Evidence for alternative male morphs in a Tanganyikan cichlid fish

Abstract Teleost fish show tremendous variation in breeding systems. In particular, indeterminate growth and external fertilization create great disparities in reproductive success among males, which drive the evolution of male reproductive polymorphisms. Here, we present evidence for alternative male reproductive tactics in N eolamprologus modestus , a substrate‐spawning A frican cichlid fish. We observed two types of males in our study …