Fish clowns description features of life
In warm shallow water coral seas of the Pacific and Indian oceans, between the thick tentacles of sea anemones – sea anemones, scurrying back and forth live and colorful Fish clowns – Amphiprion (this edition Bloch & Schneider, 1801). These amazing fish boldly live where others find their final resting place – in the arms of the deadly tentacles of anemones (Anemone-Antique four-color (Entacmaea quadricolor Rppell & Leuckart, 1828).
World famous fish-clowns brought the cartoon “finding Nemo” – remember bright orange fish with white stripes? This clown Fish bychkovoy (this edition ocellaris Cuvier, 1830). The millions of viewers who are far from aquarium or marine biology, I learned about the inhabitant of the distant tropics, rooting for his release from the aquarium.
The paradox is that Amphiprion are the most popular marine aquarium fish in the United States. However, the cartoon not told surprising facts about “unexpected” fishes-clowns …
It turns out that Fish clowns Amphiprion form a couple for life, however, is only the tip of the iceberg … All clown fish are born males first! And only with age they change sex to become females
This rare phenomenon is called protandry – from the Greek protos – first, and andros – man. In nature often it happens Vice versa – protogenia, when born to females under certain conditions, turn into males.
During the breeding season the male clown Fish, he clears a small flat plot in the grounds “of his” sea anemones. Creates a community of clown Fish two-lane (this edition bicinctus Rppell, 1830) which settle between the tentacles of sea Anemones-Hiroshima Sunny.
Subsequently, here the female lays about 300 eggs. Parents guard the eggs his calves up to the exit of the larvae and formation of the fry. Last, picked over for a week or two rise to the surface of the sea, where they feed on plankton, and then return to “native” Actinia. Where acceptable to the community.
By the way, the prototype of the famous hero of the cartoon about a fish named Nemo was the clown Fish Viskova (this edition ocellaris Cuvier, 1830).
Although cohabitation anemones and Atiprimod written a lot of scientific and not only scientific works, however, not to mention at least the word, means not to tell about the “unexpected” fish-clowns.
The cohabitation of the two species has become a textbook example of symbiosis – a mutually beneficial coexistence. However, the benefit that is received by actinium from its tenants, it looks very questionable …
She probably has a lot of use from Amphiprion like a shark from the fish or pilot fish hanging around…
In the African Savannah antelopes benefit from the fact that the birds from their wool dog parasites, but even these “good” nurses do not shun the chance to eat the blood from the wounds on her body …
This is the analogy that Fish clowns are a common commensal, i.e. freeloaders who simply devour Actinia. And as a result the sea anemone gets nothing, but the clown fish get in the house and “daily bread”.
But, from a purely biological point of view, the ecological niche of Amphiprion is unique in the animal world.
Attachment clown fish to “their” sea anemone, unusual sexual and social patterns, lead to greater specialization and acceleration of mutual evolution of both species of this tandem. Today, there are over 70 species of Amphiprion, and it is not the end …
When You will have the opportunity to dive on a coral reef in the waters of Malaysia, New Guinea, say, or Australia, then You will certainly see actinium (Actinium-Hiroshima solar (Gyrostoma helianthus (Hemprich and Ehrenberg in Ehrenberg, 1834) and their integral partners – clown fish (clown Fish lane (this edition bicinctus Rppell, 1830).
Note that fish colonize entire communities – between the great tentacles of sea anemones, which can accommodate up to a dozen and a half of Amphiprion. They all, of course, males – a real bachelor’s club, however, the Chairman of the club is female.
The dominant female paired with the male, which almost claim their ownership of Actinia. Only with their permission, young clown fish, males can enter the community.
All residents of sea anemones, except the main female and male, remain underdeveloped and unable to reproduce, simply put – teenagers. However, all fishes of different size – the higher his social status, the more clown fish.
Dominant pair jealously guarding “their” Actinia, occupying the most favorable place in its center. Here they are inaccessible to predators, and closer “to the kitchen” – the company of sea anemones, where you can always dashing to grab someone else’s prey.
However, life in the midst of the tentacles of sea anemones is not a guarantee of complete safety. It happens that the owner might eat some of his tenants … But most of the fish, the clowns are victims of countless predators which infest the coral reef.
And now, when for one reason or another, the victim was female, in the community clown fish starts the incredible action – the transformation of the dominant male and female.
Upon completion of this metamorphosis, the next in the social hierarchy of male teenage sexy Matures, grows in size and becomes a partner of the newly made females! The entire hierarchy of the community moves up to make room for the newcomer, who, inside their sea anemones.