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A group of squirrelfish (Holocentrus ascensionis) that are shoaling, not schooling: though swimming as a group, their speed and direction are not synchronised. This is a typical example of a marine population. [1]

Definition of Population:
A population is a group of individuals of one species that live in the same geographical area at the same time.[2]
This is the common definition for Population, other definitions can be discussed in the article


The area that is used to define the population is such that inter-breeding is possible between any pair within the area and more probable than cross-breeding with individuals from other areas. Normally breeding is substantially more common within the area than across the border.


  1. http://en.wikipedia.org/wiki/Fish
  2. Solomon, E. P., Berg, L. R., & Martin, D. W. (2002). Biology, sixth edition. (N. Rose, Ed.). Stamford, CT: Thomson Learning.

The main author of this article is Stamoulis, Antonios
Please note that others may also have edited the contents of this article.

Citation: Stamoulis, Antonios (2022): Population. Available from http://www.coastalwiki.org/wiki/Population [accessed on 23-07-2024]