Coral reef symbiosis (video) | Khan Academy
Clownfish live in a "symbiotic" relationship with certain anemones. This means they benefit from living with the sea anemone, and the sea anemone benefits. If you've seen the film 'Finding Nemo', you may already be familiar with clownfish and sea anemones. But, do you understand why they can live. The video below shows the dance when the anemonefish enters the FIELD GUIDE TO ANEMONE FISHES AND THEIR HOST SEA ANEMONES. Western SYMBIOSIS AS A METAPHOR FOR SUSTAINABILITY PRACTICE.
How are the populations of these two coral reef residents connected? Take a moment to pause the video and examine the table. Let's hear from academy scientist, Luiz Rocha. You can see this 2: Understanding this relationship allows us to make predictions about the population of maroon clownfish based on what we know about the population of bubble-tip anemones.
What trends do you notice over the following two years? Pause the video and make your prediction.
And given what we learned about the population ratio, we can predict a similar drop in maroon clownfishes. It's important to keep in mind that this just a theoretical example. Natural coral reef systems are very complex and involve a wide variety of factors that need to be taken into account.
This whitetip reef shark sits peacefully while a bluestreak wrasse swims around its head and mouth. The whitetip has come for a cleaning and the wrasse, which feeds on dead skin, is happy to provide it. Relationships like this one are so beneficial, the positive impacts spread across the entire coral reef system. Cleaner fish attract a wide diversity of fish to their cleaning stations.
And as a result of their cleaning care, improve the overall health of the reef.
Clownfish and Sea Anemone Partnership
Not all interactions on the coral reefs are win-win however. Take this saber-toothed blenny. It looks like a wrasse but instead of providing a beneficial cleaning, it usually takes a bite from its client's body. This parasitic relationship means one organism benefits while the other is harmed.
Passing overhead, a slender fish clings to the side of a whale shark.
Remoras like this one live directly on other fish. Feeding on discarded food without negatively impacting their host.
Because they are quite active, the clownfish are thought to be "clowning around". They defend their territory and the sea anemone that they live in.
Clownfish eat the leftovers from fish on the anemone and algae. The leftovers include copepods, isopods and zooplankton. Clownfish have a few ocean predators, but their greatest threat is humans. People who catch clownfish and keep them as pets in aquariums are making a mistake.
There are only ten out of more than one thousand types of anemone that are able to host these fish.
Many people put the fish in a tank with the wrong anemone. In captivity, the clownfish can live from 3 to 5 years.Anemonefish and Clownfish: The Real Nemo (HD) - JONATHAN BIRD'S BLUE WORLD
In the wild, they live 6 to 10 years. Symbiosis describes the special relationship between clownfish and sea anemones. They are the only fish that do not get stung by the tentacles of the sea anemone. Clownfish have a slimy mucus covering that protects them from the sea anemone. However, if this covering is wiped off of a clownfish, it will get stung and possibly be killed when it returns home to the anemone. The clownfish and the sea anemone help each other survive in the ocean. The clownfish, while being provided with food, cleans away fish and algae leftovers from the anemone.
In addition, the sea anemones are given better water circulation because the clownfish fan their fins while swimming about. Clownfish live at the bottom of the sea in sheltered reefs or in shallow lagoons, usually in pairs.
Clownfish have a special relationship with the anemone and are very important to them. They are a large help to the anemone as they clean the anemone by eating the algae and other food leftovers on them. They also protect the sea anemones by chasing away polyp-eating fish, such as the butterfly fish.
Coral reef symbiosis
The map below shows where in the world clownfish can be found. They live in the warmer waters of the Pacific Ocean and Indian Ocean. There are no clownfish in the Caribbean. What is the Life Cycle of the Clownfish? The spawning season of the clownfish, a time when they breed, is year round in tropical waters. Males attract the females by courting.