Culture of Marine Ornamental Fishes with reference to Production Systems, Feeding and Nutrition

Coral reefs support over 4000 species of fish, about 800 species of reef building corals and a great number of other invertebrates and sponges. The ornamental animals are the highest value added product that can be harvested from a coral reef. The annual global marine ornamental trade is estimated at US $ 200 - 330 million

Marine ornamental fish culture status, constraints and potential

Culture technologies on marine ornamentals available at present are mainly confined to anemone fishes, damsel fishes (Pomacentridae), gobies (Gobiidae), cardinal fish (Apogonidae), sea horses (Sygnathidae), angelfishes (Pomacanthidae) and dotty backs (pseudochromidae). The major constraints that limit the expansion of marine ornamental fish aquaculture are (i) control of patterns of sex reversal, broodstock development and spawning, (ii) identification of appropriate live feed items and their mass culture for larval feeding, and (iii) suitable larval rearing systems with emphasis on water quality parameters

Challenges posed by climate change in the future scenario of coastal aquaculture -Winter School on Impact of Climate Change on Indian Marine Fisheries held at CMFRI, Cochin 18.1.2008 to 7.2.2008

Aquaculture is considered as a sunrise sector for increasing fish production since the capture fisheries have reached almost stagnation levels. With more than 8% annual growth globally, the sector is now considered as the fastest growing food producing sector in the world. Today aquaculture provides around half of the fish for human consumption and this share will need to grow further. The global aquaculture production showed that 25.8 million tonnes (m t) of freshwater organisms were produced (43.8%), 30.2 m t (50.9%) of marine organisms, and 3.4 m t of brackishwater organisms comprising nearly 63% shrimps (FAO, 2006)

Broodstock development, breeding and larval rearing of damselfishes- Winter School on Recent Advances in Breeding and Larviculture of Marine Finfish and Shellfish

In recent years it has been reported that nearly 1500 species of marine ornamental fishes are traded globally and most of these species are associated with coral reefs. Nearly 98% of the marine ornamental fishes marketed are wild collected from coral reefs of tropical countries. The damaging fishing methods which destroy the fragile corals and over harvesting of the species in demand are the vital problems associated with the trade. It is widely accepted that the ultimate answer to a long term sustainable trade of marine ornamental trade can be achieved only through the development of hatchery production technologies. In this context it is imperative to develop commercially viable seed production techniques of species which are in demand for the long term sustainability of the trade

Mariculture Technologies for Augmenting Marine Resources

A global review of the marine capture fisheries scenario reveals that 80% of the world's fish stocks for which assessment information is available are fully exploited and thus require effective and precautionary management. The maximum wild capture fisheries potential from world's oceans have almost been exploited and a more closely controlled approach to fisheries management is required (FAO, 2009). The current marine capture fisheries scenario in India is also characterized by increased and excessive fishing effort, overexploitation of certain resources from the inshore grounds and increased conflicts among the different stakeholders in the sector

Recent advances in breeding and seed production of marine finfish

Cage culture has made possible the large-scale production of commercial finfish in many parts of the world and can be considered as the most efficient and economical way of rising fish. The most vital prerequisite for the development of sea cage farming is the technology for breeding and seed production and the reliable supply of good quality hatchery produced seeds of suitable high value marine finfishes

The tuna live bait scarcity problem in Lakshadweep and the options for solving it

The principal methods of catching skipjack tuna, skipjack tuna throughout the world is the pole and line fishing using live bait. The lack of adequate supplies of live bait is a major bottleneck for the development of pole and line tuna fisheries in Lakshadweep which is the only place in India where pole and line fishing is practised for catching tuna. The results of the recent live bait resource surveys at Lakshadweep indicated that year to year fluctuations in the availability and abundance of live baits is a natural phenomenon which is caused mainly by the variability in the recruitment of the various species into the lagoon environment. The fishermen of different islands other than Minicoy need training for the rational exploitation of live bait fishes other than the currently fished S. delicatulus. Intensive culture of suitable live bait fish is another option for solving the bait fish scarcit

Marine ornamental animals collection, culture and conservation

Eventhough the coral reefs cover less than 0.25% of the marine environment, they constitute the most biologically rich and productive system on earth and are often described as 'coral paradise' and 'rain forest of the seas'. Coral reefs support over 4,000 species of fish , about 800 species of reef building corals and a great number of other invertebrates and sponges

लक्षद्दीप में टूयूना लाइव बेटों की दुर्लभता और इसके निवारण केलिए मार्ग

कृपया पूरा लेखा पढ

Current status of live feed production for larviculture- Winter School on Recent Advances in Breeding and Larviculture of Marine Finfish and Shellfish

The major expansion of marine finfish and crustacean aquaculture since 1980s around the world can be attributed to the development of standard mass production techniques of live feeds. Eventhough most farmed marine animals are either carnivorous or omnivorous from their post larval stages, micro algae are required for larval nutrition during a brief period either for direct consumption or indirectly as food for live prey fed to small larvae. The hatchery production of penaeid shrimp post larvae depends on the use of live diatoms for the early stages and Artemia for later stages. The hatchery production of juveniles of marine finfish is achieved globally by the use of rotifers and Artemia. Microalgae are also routinely used in the ‘greenwater technique’ employed for marine finfish larviculture