पिंजरा मछ्ली संवर्धन - पर्यावरणीय और सामूहिक पक्ष

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समुद्री पखमछ्ली प्रजनन और संतति उत्पादन में जैवप्रौद्योगिकी अनुप्रयोग

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Chrysiptera cyanea (Quoy & Gaimard, 1825)

The Sapphire devil damsel is characterized by its brilliant blue colour and a small black spot at the posterior base of the dorsal fin. Adult males sometimes develop an orange colour on caudal fin and ventral parts of the body. Females and juveniles usually lack the orange colour. There are 13 dorsal spines and 12-13 soft rays and 2 anal spine and 13-14 anal soft rays

Biotechnological interventions in marine finfish breeding and seed production

Fish farming is the world’s fastest growing sector of agricultural business. Fish and other aquatic products represent an important, underutilized resource for a protein-hungry world. Natural catches are dropping even as demand continues to increase, making aquaculture increasingly attractive. Consumer demand for fish products is increasing. At the same time, wild fish stocks are rapidly declining, mainly because of over fishing. Biotechnology provides powerful tools for the sustainable development of aquaculture, fisheries, as well as the food industry. Increased public demand for seafood and decreasing natural marine habitats have encouraged scientists to study ways that biotechnology can increase the production of marine food products, and making aquaculture as a growing field of animal research

प्रजाति विविधीकरण – तटीय जलकृषि में स्थिरता सुनिश्चित करने का उपाय

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Hormonal induction of spawning in marine finfishes

In recent years, especially with the development and expansion of sea cage farming, mariculture is growing rapidly. On a global basis, a rapid growth in marine finfish culture is noted. It has increased at an annual average growth rate of 9.3% from 1990 to 2010. Salmonids, amberjacks, sea breams, sea basses, croakers, groupers, drums, mullets, turbot, other flatfishes, snappers, cobia, pompano, cods, puffers and tunas are the major groups which are maricultured

Farming of Silver Pompano Trachinotus blochii in coastal aquaculture ponds

The Central Marine Fisheries Research Institute has initiated aquaculture research on pompano from 2008 and the first successful broodstock development, induced breeding and larval production was achieved in 2011. Following the successful seed production of silver pompano, demonstration of farming in brackishwater ponds was initiated by the CMFRI to popularize among the farmers about its suitability for aquaculture. The first farming demonstration from the hatchery produced seed was carried out in a coastal aquaculture pond at Anthervedi Village, East Godavari District, Andhra Pradesh. It has been proven that silver pompano can be cultured in the brackishwater shrimp culture ponds as an alternative species with high survival rate, appreciable FCR and meat quality. These fishes have attained an average weight of 450 grams in 240 days (8 months). Based on the experience gained on the brackishwater farming of silver pompano, the practices to be adopted for pompano farming are narrated

Cage Farming of Cobia Rachycentron canadum

Cobia has gained popularity as a good candidate for mariculture due to its rapid growth and white meat of versatile use. It is considered as one of the most promising candidates for warm-water marine fish aquaculture in the world. Being the only member of the family Rachycentridae, it is found in the warm, temperate to tropical waters of the West and East Atlantic, throughout the Caribbean and in the Indo-Pacific off India, Australia and Japan. To date, research and development of cobia aquaculture has been initiated in over 23 countries and territories

समुद्रि अलंकारी मछलियों का टिकाऊ व्यवसाय का विकास

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Hydrogen bond stabilization in Diels–Alder transition states: The cycloaddition of hydroxy-ortho-quinodimethane with fumaric acid and dimethylfumarate

DFT investigations on the mechanism of Diels–Alder reactions of a hydroxy-ortho-quinodimethane with fumaric acid derivatives were performed to understand the origin of the syn or anti configuration of the adducts. The diene hydroxyl group and the dieneophile carboxyl group show hydrogen bonding in the transition state, significantly favouring the syn product. This reaction is poorly diastereoselective for R = CO₂Me (ratio syn/anti = 57:43) and significantly improved for R = CO₂H (ratio syn/anti = 71:29). The stereoselectivities are properly predicted from transition structures calculated at the B3LYP/6-31G(d) level