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Should all males be harvested before turning into females at a certain size (or vice versa), a rapid decline would occur in the population.

These opposing forms of sequential hermaphrodites are called protandrous hermaphrodites for male to female changing species, and protogynous hermaphrodites for those that change from female to male.Ī sequential hermaphrodite life history strategy can be extremely detrimental if harvest of fish is allowed prior to male or female reproductive sizes. Unlike clownfish that start life as males and transform into females, there are other species, like the California Sheephead, that start as females and transform into males. These fish are born as hermaphrodites that develop as one gender before changing to the other gender at some point in their life.

Considering that they demonstrate reproduction and the killing of the mother in the first minute of the movie, how did they decide that a natural sex change is outside the bubble of viewable material?įish reproduction is complicated, and it is especially complicated in cases like the clownfish where species are sequential hermaphrodites. As you can see, the first minute of Finding Nemo, outside of the talking fish part, is the only biologically accurate part of the movie.