Essays on Fish

Anadromous salmonids have the ability to live in two very different environments due various physiological and biochemical changes in their as they make their way through their life cycle from eggs to mature salmonids. The complex life of anadromous salmonids begins from eggs laid in…

The matter at hand needs impartial acknowledgement of the common effects of fishing and dredging of marine phosphate sediments in order to fully come to a conclusion. The proposed method is said to take phosphorus “directly out of the sea, sucking it up from the…

Materials and Methods Fish collection and maintenance. Live fish specimen of selected carps species (Hypophthalmichthys nobilis, Cetenopharyngodon idella and C. carpio), irrespective of sex, average range length of 21 centimeter (cm) to 34 cm and weighing 210 – 910 grams of each species were procured…

DiscussionIn present study, all selected carps (H. nobilis, C. idella and C. carpio) secreted huge amount of mucus. Also mucus secretion varied among selected fish species. Blackstock and Pickering (1982); Negus (1983) and Nigam, Kumari, Mittal and Mittal (2012) also reported the similar results. This…

Salmoniformes or otherwise known as Salmon live in the northern Atlantic and Pacific oceans, and can sometimes be found swimming in the Great Lakes. Many salmon are anadromous, which refers to how they’re born in freshwater, migrate to the sea, and return to freshwater to…

Biological material Rainbow trout (900±65 g) were purchased from a local fish farm in Karaj (Iran), and then immediately transported to the laboratory within 25 min (a distance of about 6 km) in foamed polystyrene box with a suitable quantity of flaked ice. In the…

Parosphromenus ornaticauda was first discovered in 1990 by Kottelat. It belongs to the family of Osphronemidae. It’s a small ornamental fish for aquariums. It is usually found in southern (peninsular) Thailand, Peninsular Malaysia, Sumatra and Indonesian rivers. Parosphromenus ornaticauda is totally freshwater fish. Its length…

Biodiversity, a contraction of biological diversity as the term used to describe the total variety of living organism. It is essential for stabilization of ecosystem and protection of overall environmental qualities. The study of biodiversity is an important issue in today’s world (Khan and Hasan,…

Rice-fish culture creates a symbiotic system and thereby optimizes resource utilization through the complementary use of land and water and also improves diversification, intensification, productivity, profitability, and sustainability. Rice-fish farming also upgrades soil nitrogen, phosphorous, aeration of water, pest control, etc. (Allahyari and Noorhosseini 2014)…

Introduction Aquaculture as a fast growing industry is the main source to increase fish supply. By raising the fish demand, the use of intensified aquaculture systems has increased which has magnified stressors for fish and thus enhanced the outbreaks of disease with huge economic losses…