In this article we will discuss about the prawn culture in India. A. Important cultural prawns and their importance in fishery: A good number of prawn species are of commercial value. The following are important: a. Penaeus indicus (Fig. 47.8): Maximum size 230 mm. One of the most important commercial species. Young ones are fished in estuary. b. Penaeus monodon: [...]
In this article we will discuss about:- 1. Behaviour, Ecology and Control of Mammalian Grain Pest 2. Management of Mammalian Grain Pest. Behaviour, Ecology and Control of Mammalian Grain Pest: The major field and stored grain mammalian pests are Bandicoota bengalensis (Fig. 47.2) and rattus norvegicus. The Bandicoot rat is commonly known as Indian mole rat and R. norvegicus (Fig. [...]
This article will help you to differentiate between natural breeding and induced breeding. Natural Breeding: The Indian major carps do not breed in confined water. Natural spawning also has many hazards. a. Factors required for breeding are beyond human control. b. Spawns are not of good quality and often mixed with those of unwanted fishes, particularly predators. c. High mortality [...]