![]() ![]() The remaining males move up a rank in the hierarchy. If the female anemonefish is removed from the group, such as by death, one of the largest and most dominant males becomes a female. ![]() Anemonefish are protandrous sequential hermaphrodites, meaning they develop into males first, and when they mature, they become females. Only two anemonefish, a male and a female, in a group reproduce – through external fertilization. The largest and most aggressive female is found at the top. In a group of anemonefish, a strict dominance hierarchy exists. Reproduction Clownfish swimming movements Īnemonefish are the best known example of fish that are able to live among the venomous sea anemone tentacles, but several others occur, including juvenile threespot dascyllus, certain cardinalfish (such as Banggai cardinalfish), incognito (or anemone) goby, and juvenile painted greenling. Amphiprion percula may develop resistance to the toxin from Heteractis magnifica, but it is not totally protected since it was shown experimentally to die when its skin, devoid of mucus, was exposed to the nematocysts of its host.
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