Definition of Bank of fish

The concept of fish Bank appoints the whole of similes fish that should not necessarily be of the same species, such is the case of the tuna and sardines, to name a few, and they are characterized by swimming in synchronized and focused way. Popularly it is usual that the concept appears designated as school. The most remarkable feature of a shoal of fish is the similarity of those who compose it. Fish make use of many tricks to align with those "comrades" who look like in size, species, health, origin and affinity. This tactical move with almost equal peers has a special effect which in the case of encountering a predator any member bank be appreciated with predilection above the rest, i.e. the above technique facilitates the homogenization and hence the "distraction of the predator's turn".
Now worth mention that this ability to associate with other similar fish is not a skill with which comes the fish, but you plan to learning, an explanation of this, we find that the fish cannot perceive its own color, then, tends to be associated with those it perceives as similar and joined those who at some point successfully.
Noteworthy is mobilization in this way brings numerous benefits to animals that do, in this case in particular fish, helps them to protect themselves from predatory species, enhances their own predation, increases its hydrodynamic efficiency and facilitates the encounter with colleagues, among the most prominent.
Most common movements which fish stocks are among the migrant, which consist of the displacement from a place of origin to another destination and which imply a change in the usual habitat. These can be regular, seasonal or even permanent in time.