Why the Disney movie "Finding Nemo" is wrong

It's beautiful, entertaining, tender, dramatic ... but, from a scientific point of view, the Disney movie "Seeking Nemo" contains misinformation.
According to a study recently presented at a symposium in the UK, the clownfish who names the film would never have reunited with his father at the end of the story, as his father would have become his mother by then.
This is because in reality, when for some reason the female of a pair disappears, the males undergo a hormonal transformation that turns them into females, with reproductive capacity.
The fish that inspired Nemo is running deaf
In clown or anemone fish, the dominant and largest individual is the female , which is responsible for protecting the eggs from external threats.
The male is smaller and stays closer to the eggs.
When changing sex, males assume the protective role reserved for females.
Both, together with the youngest individuals, live in the same anemone all their life.
From father to mother and son to couple
The Disney film, well received by critics and the public when it debuted in 2003, revolves around the relationship between Nemo and his father, Marlin.

When a barracuda eats his mother and brothers, Nemo and his father are the only survivors of the family.
Nemo accidentally separated from his father, who desperately seeks him, until at last the emotional reunion takes place.
But, as the BBC explained to Suzanne Mills, a biologist at the Center for Insular Research and the Environment Observatory in France and co-author of the study, " when he returned Nemo would have met his mother because after about three weeks, The father would have gone through numerous hormonal changes that would have made him a female. "
Not only that, the largest young individual remaining in the anemone - which in this case would be Nemo- becomes the new member of the pair with which the new female can lay eggs.
Everything starts in the brain
The first molecular signs of transformation, the study says, appear in the male's brain rather than in his reproductive tract.

It is believed that the transformation may be caused by a social trigger. That is, it starts when the male recognizes that the female is no longer by her side.
Another reason, say the researchers, may be that the absence of the dominant behavior of the female causes a hormonal change within the fish, and this in turn initiates the transition.
Although Disney did not include this information in the plot of the film, he was correct in many other details that characterize this species that lives in tropical waters, such as the fact that they are completely faithful, and that the female is the most courageous of the couple.