Category: Biology | Physiology

Respiration in Fishes

Respiration is a physiological process by which organisms exchange gases (especially intake of oxygen and releases of carbon-di-oxide),with the environment. This process is also known as external respiration. On the other hand, internal or cellular respiration means the oxidation of complex organic substances (carbohydrates or fats) within cells and tissues to form carbon dioxide and water with release of energy. (BdFISH Dictionary)

Respiration refers a physiological process by which …read more

Category: Biology | Physiology

Introduction to endocrine glands of fishes

The glands that secrete their products into the bloodstream and body tissues along with the central nervous system to control and regulate many kinds of body functions are known as endocrine gland. In fishes various endocrine gland has been found associated with different tasks and functions.

Endocrine glands of fishes: Different types of endocrine glands are found in fishes; such as-

The pituitary gland or Hypophysis Thyroid Gland Adrenal gland …read more