The below mentioned article provides a quick note on the origin of species. Origin and Accumulation of Genetic Diversity: It is presumed that gene mutation caused by cosmic radiation and other mutagens, modifier genes, inversion of parts of chromosomes, translocation of genes from one chromosome to another, elimination or reduplication of chromosomes, introduce genetic diversity in natural populations. The accumulation [...]
The following points highlight the seven main qualities that determine the suitability of species for aquaculture. The qualities are: 1. Rate of Growth and Production 2. Size and Age at First Maturity 3. Breeding 4. Adult Feed 5. Preference of Hardy and Disease Resistant Species 6. Influence of Species on Environment 7. Intensive and Semi-Intensive Cultures. Quality # 1. Rate [...]
List of twenty-four commercially important species of prawn:- 1. Hippolysmata Ensirostris 2. Palaemon Styliferus 3. Palaemon Tenuipes 4. Macrobrachium Malcomsonii 5. Macrobrachium Rosenbergii 6. Macrobrachium Rude 7. Heterocarpus Wood-Masoni 8. Parapandalus Spinipes 9. Plesiotiika Martia 10. Aristeus Semidentatus 11. Atypopenaeus Stenodactyius and Others. 1. Hippolysmata Ensirostris: Hippolysmata Ensirostris is distributed in India (along the coasts) Myanmar, Sri Lanka and Sumatra [...]