Endocrinological applications in crustacean broodstock development- Winter School on Recent Advances in Breeding and Larviculture of Marine Finfish and Shellfish

Globally the scientific community is engaged in research on induced maturation of commercially important crustaceans aiming to the betterment of technologies over the already available eyestalk ablation techniques. In spite of all the technologies so far, there remains number of areas where further development would be highly desirable for optimizing commercial seed production

Different Species Used for Coastal Pond Farming in India

Commonly raised species in freshwater ponds are the carps, tilapia, catfish, snakehead, eel, trout, goldfish, gouramy, trout, pike, tench, salmonids, palaemonids, and the giant freshwater prawn Macrobrachium. In brackishwater ponds, common species include Pearl spot, Etroplussurratensis, mullet (Mugil sp.), milkfish (Chanos chanos), and the different penaeid shrimps (Penaeusmonodon, P. orientalis, P. merguiensis, P. penicillatus, P. semisulcatus, P. japonicus, and M. ensis). The more popular species for culture in marine cages and/or ponds are the Sea bass, Cobia, Pompano, Grouper, Red sea bream, Rabbitfish, and marine shrimps

Algal culture methods

All algae culture systems require a set of ‘stock’ cultures, usually of about 250ml in volume, to provide the reservoir of algal cells from which to start the larger-scale cultures which will be used for feeding. Stock cultures are kept in small flasks, such as 500ml borosilicate glass, flat-bottomed boiling flasks fitted with cotton-wool bungs. Two types of culture medium can be use

सीपी नर्सरी प्रणालियों में नूतन विकास

कृपया पूरा लेखा पढ

Open sea cage culture demonstration farms in India

Cage culture is coming up as a promising venture and offers the fishers a chance for optimally utilizing the existing water resources which in most cases have only limited use for other purpose

Open sea Cage culture: carrying capacity and stocking in the grow out system

Developing open sea cage farming is a new way of providing employment to fishermen transferring from fish capture to aquaculture. It will also create significant socioeconomic influences in the future. The near target of cage culture is that marine fish farming will become a main force in aquaculture sector. The open sea cage culture has been expanding in recent years on a global basis and it is viewed by many stakeholders in the industry as the aquaculture system of the millennium. The Asian seabass, Lates calcarifer, known as “Kaalangi” in Kerala is an important candidate finfish species for sea cage farming

Nursery rearing of seabass fry and importance of grading and seed transportation

The Asian seabass (Lates calcarifer) is an important food fish and a potential aquaculture species in tropical countries. It exhibits catadromous habits within its areas of distribution. It is an advantageous culture species because after early larval rearing in seawater, it can be cultured in all levels of salinity, from fresh to seawater, and in a variety of culture systems from open ponds and cages to flow-through and closed recirculation systems. In addition, this species produces large number of eggs that can be reared intensively on fresh and pelleted feeds, and can reach a market size of 350 to 700 g in one year or less periods under optimum culture conditions

Seed Production and Cage Culture of Pearl Spot (Etroplus suratensis) Package of Practices Type:1

The pearl spot Etroplus suratensis the State Fish of Kerala is an indigenous cichlid fish distributed along the east and west coasts of India. The pearl spot wealth was about 2,000 tonnes in 2001 in Kerala. In 20 1 I , it decreased to about 300 to 350 tonnes. In addition to its high demand in the local market it has good export market also. Pearl spot is farmed using wild seeds in traditional ponds in Kerala. The average production is about 1 000 kg/ha/year over 8-10 month grow-out period. Pond culture is not recommended for large scale production of the fish. However, culture of this species in cages has shown its potential for monoculture and polyculture with other brackishwaterfishes. Cage culture is the most suitable method to enhance pearl spot production

Effect of salinity on growth and survival of juvenile Indian spiny lobster, Panulirus homarus (Linnaeus)

The spiny lobster, Panulirus homarus has recently captured much attention in India for fattening in marine cages due to its high demand in the international market. Water quality parameters play an important role in the production rate of commercial lobster mariculture. In the present study, juvenile lobsters (93.63 ± 0.4 g, mean ± SD; 41.66 ± 0.57 mm CL, mean ± SD) were grown in four different salinities (20, 25, 30 and 35 ppt) over a period of 80 d and significant differences (p<0.01) were observed in survival and growth. Growth was highest in 35 ppt salinity and progressively reduced at lower salinities. Although rearing in seawater of 35 ppt salinity has resulted in the best performance for P. homarus, its capacity to tolerate lower salinities would provide greater opportunity to develop commercial aquaculture

ടാങ്കുകളിലെ കരിമീന്‍ വിത്തുല്പാദനം Seed production of Pearl spot in tanks

ടാങ്കുകളിലെ കരിമീന്‍ വിത്തുല്പാദനം Seed production of Pearl spot in tank