Fish reproductive strategies

There are many reproductive strategies that fish use. For instance, many fish species reproduce through polygyny, where 1 male will have multiple partners. With this method, the female partners usually choose the territory, not the male. A male will determine and defend its territory and build nests which the females will visit or say in. This of course depends on how sutible the nest or territory is. Fish which are polyandrous have 1 female which reproduces with multiple males. An example of this is the anglerfish. The female in this species is very large. Males are tiny tadpole looking fish, which latch onto the female. Eventually these males become parasitic and literally fuse with the female, becoming a sort of male gonad on the female. This even goes so far as to share the same ciruclatory system. Whenever th female wants to reproduce, the male is signaled and sperm is released into the eggs, fertilizing them.