In this article we will discuss about the migration process in fishes with the help of a suitable diagram. Generally fishes restrict their movements within small territorial limits and do not go out of their home ranges. However, a few species travel long distances moving from place to place in search of food or for breeding. This movement of a [...]
Generally adult fishes depended chiefly on pharyngeal gills for aquatic respiration. However, other devices also occur to supplement or replace gill respiration. All such additional respiratory organs, other than gills, are known as accessory respiratory organs. The development of accessory respiratory organs is found mostly in freshwater fishes of tropical region and very rarely in marine fishes. Sometimes the fishes [...]
Parental care can be defined as an association between the parents and the offsprings, so as to increase the chances of the survival of the young ones, and in fishes it includes all the post-spawning care of the offsprings by the parents. Most fishes do not care for their eggs or youngs and leave the spawning grounds soon after fertilisation. [...]