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
Chacunda gizzard shad, Anodontostoma chacunda (Hamilton, 1822)
Systematic position: Phylum: Chordata Class: Actinopterygii (Ray-finned fishes) Order: Clupeiformes (Herrings) Family: Clupeidae (Herrings, shads, sardines, menhadens) Genus: Anodontostoma Species: A. chacunda Synonyms: Clupanodon chacunda (Hamilton, 1822) Chatoessus chacunda (Day, 1878) Dorosoma chacunda (Weber & deBeaufort, 1913) Andontostoma chacunda (Munro, 1995) Common/local
Shellfishes of Bangladesh: Lobsters, Clams & Crabs
Shellfish, a group of invertebrates and aquatic organism, is covered by chitinous or calcareous exoskeleton. Shell means an outer covering or layer which is popularly known as “Khoalos” in Bengali. Shellfish belongs to two major Phylum Arthropoda and Mollusca. In
Habitat of Freshwater Fishes of Bangladesh: Order Cypriniformes
The place in where particular plants or animals live is known as habitat. Within the habitat, organism occupies different niches. A niche is the functional role of a species in a community. Habitat is a place where species get what
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
Shellfishes of Bangladesh: Mussel, Snail & Oyster
Shellfish, a group of invertebrates and aquatic organism, is covered by chitinous or calcareous exoskeleton. Shell means an outer covering or layer which is popularly known as “Kholos” in Bengali. Shellfish belongs to two major Phylum Arthropoda and Mollusca. In
Fishes of the River Halda
Bangladesh is a riverine country and more than 700 rivers are present in this country (BFRI, 2007). In ancient time river was the main source of fishes from where people consume and mitigate their demand. Fishes bred and live in