Remora - Wikipedia
The remoras /ˈrɛmərəz/, sometimes called suckerfish, are a family (Echeneidae) of ray-finned It is probably a mutualistic arrangement as the remora can move around on the host, removing ectoparasites and They are commonly found attached to sharks, manta rays, whales, turtles, and dugongs (hence the common . One curious example of symbiosis is the shark and remora relationship, found in many tropical oceans. This relationship has developed over. Sharks and Remora Fish are an example of a unique symbiotic Together they show a mutualistic form of symbiosis. Their Relationship.
Remoras, like many other fishes, have two different modes of ventilation.
Manta Ray’s relationship status: It’s complicated
Ram ventilation  is the process in which at higher speeds, the remora uses the force of the water moving past it to create movement of fluid in the gills. Alternatively, at lower speeds the remora will use a form of active ventilation,  in which the fish actively moves fluid through its gills.
In order to use active ventilation, a fish must actively use energy to move the fluid; however, determining this energy cost is normally complicated due to the movement of the fish when using either method. As a result, the remora has proved invaluable in finding this cost difference since they will stick to a shark or tube, and hence remain stationary despite the movement or lack thereof of water. Experimental data from studies on remora found that the associated cost for active ventilation created a 3.
Concerning the latter case, remoras were used as an outgroup when investigating tetrodotoxin resistance in remoras, pufferfish, and related species, finding remoras specifically Echeneis naucrates had a resistance of 6.
A cord or rope is fastened to the remora's tail, and when a turtle is sighted, the fish is released from the boat; it usually heads directly for the turtle and fastens itself to the turtle's shell, and then both remora and turtle are hauled in. Smaller turtles can be pulled completely into the boat by this method, while larger ones are hauled within harpooning range.
Remora Fish and Shark Symbiosis Relation ship by X1* Havok on Prezi
This practice has been reported throughout the Indian Oceanespecially from eastern Africa near Zanzibar and Mozambique and from northern Australia near Cape York and Torres Strait.
Some of the first records of the "fishing fish" in the Western literature come from the accounts of the second voyage of Christopher Columbus. Manta Rays have relationships with a variety of hitchhiking animals such as Remoras and Cobias.
The Remoras attach themselves to the mantas using oval, sucker-like organs that open and close to create suction. When the mantas feed, the Remoras will travel up to the mouths of their hosts and help themselves to leftover scraps of food. The Remora can be seen swimming below the Manta Ray waiting for left over krill.
The Remoras are not free loaders. Since both the Manta Rays and the Remoras benefit from their exchange of services, their relationship is mutual. Copepods, which the Remoras remove, have a parasitic relationship with the Manta Rays.
They are typically small and inconspicuous aquatic crustaceans.
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Most of them are probably parasitic but the precise nature of the relationship with the host has yet to be confirmed. The Cobias Rachicentron canadum also have a relationship with the Manta Rays. Instead, the Cobias follow the Mantas around, scavenging for leftovers, and gaining some measure of protection.