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Nice Fish Swarm in Aquarium Garden

Free video about schooling fish. This free video was created for you by http://epsos.de and can be used for free under the creative commons license with the attribution of epSos.de as the original author of this schooling fish video. Thank you for supporting the creative commons movement !! A shoal, also called school of fish, is a set of fish like, not necessarily of commercial species such as tuna or sardines. And it can not be either specific to a species. We reserve the term "bank" for groups of the same species, swimming in a high synchronization and polarized manner. Behavior is an aggregation of animals of similar size and orientation, generally in the same direction crossing. These behaviors bring them benefits, including defense against predators (improving detection and diluting the possibility of capture), perfect successful predation, and best way to find mates. Another helpful measure is the grouping in schools efficiency increased hydrodynamic. A feature of a school is the strong resemblance between its members. Fish use many tricks to choose shoal mates: school size, type of species, body size, health of members of the shoal, and Kinship. The fish often choose to be in a school that is similar individuals in appearance; the "peer effect" enables any member of coincident shoal in the flesh will not preferred as a target for predators. This effect "pairs" finally gets homogenise shoals. Swimming fish in schools is an example of self-organization. An individual is always trying to keep the same distance from those around him. He is not aware of where he is. He has no idea of the overall structure. Leaders are missing and only by coincidences changes the swimming direction. A schooling fish is a fish, who swims along with many other fish of the same species, but also with other species. The individual fish swim parallel to each other to a large extent, in approximately the same distance and in the same direction. Gregarious can form such a swarm all year round, seasonal or only on occasion. swarm behavior is also of birds, cuttlefish, krill and many other animals known. Corresponding formations of mammals called herds. In a smooth transition can be distinguished from the schooling fish such animals, the only live together in groups (schools). True schooling fish are characterized by a constant individual distance, disorientation isolated animals, coordinated movement of the entire swarm communication between the individuals of the swarm, and usually lifelong guidance in the swarm. In a swarm float to the animals of the same type and the same age. The real schooling fish include, for example, the herring, but other fish species in the open sea. In freshwater real schooling fish are rare. Examples are Haibarben, Rummy or the inclination float the genus Thayeria, which is still predominantly the criteria for a real schooling fish are met. Basically, there are animal species that live under high predation pressure. The types have features that enhance the cohesion of the swarm, in the case of these freshwater species there are certain drawing features. Loggerhead schooling fish or group of fish showing in larger groups in existence of external factors threatening tendencies to swarm formation. It also animals of different species and ages can group. In small groups, or in the absence of confounding factors change the behavior, but scattered animals are never disoriented in space or under a high individual stress. This group includes many freshwater fish from the orders of tetras and barbs. They meet numerous criteria for schooling fish, but they differ in some, important points of real schooling fish. So is Red Neon in Artaquarien even in large groups of several hundred individuals rather an easy territorially organized fish, the individuals are distributed throughout the available habitat and especially the males boundaries where small individual areas from which they defend against conspecifics. Only in the presence of external interference factors, such as predators in nature, the animals gather in a swarm and then show the criteria for schooling fish. Other examples of gregarious group of fish among the freshwater fish are the armored catfish of the genus Aspidoras, Brochis and Corydoras or a series of loaches of the genus Botia. These animals live together in nature in schools, which may well include several hundred to thousand individuals. The joint activities include primarily food intake, for example, on open, unprotected feeding grounds (sandbars), where the school or large group individuals provides appropriate protection. Otherwise, no other criteria for fish swarm apply to these animals. Thank you for supporting the creative commons movement !!

• published: 23 Jan 2015
• views: 51