भारत में पिंजरा मछली पालन में देखे जाने वाले सामान्य रोग

Common diseases in marine algae culture in Indi

Over-the-Scope Clip to the Rescue! A Novel Tool for Refractory Acute Nonvariceal Upper Gastrointestinal Hemorrhage

© 2020 © 2020 The Author(s). Published by S. Karger AG, Basel. Nonvariceal upper gastrointestinal hemorrhage (NVUGIH) is more prevalent than lower gastrointestinal hemorrhage and carries a high risk of mortality in the elderly, especially those with significant cardiovascular comorbidities. Traditional endoscopic methods, such as through-the-scope clips, electrocautery, and epinephrine injection, are frequently used to control these bleeds; however, they carry a 10% risk of rebleeding, and this itself carries a mortality risk of 36%. The larger over-the-scope clips (OTSC) that were initially used for the closure of fistulas and perforations are now gradually being implemented to manage NVUGIH. To our knowledge, we present the first cases to be reported in the literature where OTSC was successfully used as salvage therapy for refractory acute upper gastrointestinal bleeders who failed traditional endoscopic management and interventional radiology-guided embolization of the bleeding artery. We also provide an up-to-date literature review on the use of OTSC and its superiority to traditional endoscopic interventions in the management of complicated NVUGIH

Diseases and their management in cage culture

The current trend in aquaculture development is towards increased intensification and commercialization of aquatic production. Like other farming sectors, the likelihood of major disease problems occurring increases as aquaculture activities intensify. Disease is now a primary constraint to the culture of many aquatic species, impeding both economic and sociadevelopment in many countries. Addressing health questions with both pro-active and reactive programmes has become a primary requirement for sustaining aquaculture production and product trade. It is reported that the principal diseases in cage aquaculture of marine finfish and shellfish in Asia are caused by environmental and management affects, nutritional causes, and viral, bacterial, parasitic, and fungal pathogen

Nursery rearing of Asian Seabass

Lates calcarifer species is widely distributed in the tropical and subtropical areas of the western Pacific and Indian ocean including Australia, Southeast Asia, the Philippines and countries bordering the Arabian sea. Seabass spend most of their life in a lagoon which connects to the sea. They spend two to three more years in estuarine areas until they mature, then migrate to the sea water around the mouth of a river or lagoon for spawning. Larvae and juveniles live in the sea grass bed in coastal areas for about six months, attaining a size of about 2 to 5 inches. The fish migrate to freshwater when they grow bigger

Open sea cage culture for marine finfish and shellfishes

Open sea cage culture for marine finfish and shellfishe

Bacterial Flora of Water and Rotifers in Outdoor Mass Culture Tanks Fed with Different Microalagal Diets

Investigations were carried out on the bacterial flora of water and the quality of rotifers in outdoor mass culture tanks. Brachionus plicatilis and B. rotundiformis were cultured in 10 numbers of 1 tonne tanks and the physico-chemical parameters and microbial loads of water, and total bacterial and Vibrio loads of microalgae and rotifers, during the period 2014-15, were studied. The study revealed a significant variation of the ammonia levels and total bacterial loads with different diets (P < 0.05). A positive correlation was observed between the total bacterial loads of algal concentrations and loads of rotifers, but no correlation was observed between Vibrio loads of water and rotifers. The prevalence of Vibrio loads of rotifers was low in tanks fed with Nannochloropsis oculata and maximum Vibrio loads were recorded in Chaetoceros calcitrans fed rotifers. The Vibrio loads significantly varied with days of culture and also with the algal diets. A positive correlation was observed between the total Vibrio loads of water and rotifers

Sperm whale Physeter macrocephalus washed ashore at Devbagh, Karnataka

A female sperm whale Physeter macrocephalus was stranded and washed ashore in dead condition, at Devbagh, 10 km away from Karwar on 18.9.2009

Experimental studies on Macro fouling communities on net panels at marine cage farm of Karwar, India

A study was undertaken on the fouling pattern, monthly settlement and species dominance at marine cage culture during the year 2014-2015. The net panels deployed at three different depths during December 2014 and the study was carried out for seven months. The study revealed wide variations in colonization of the bio-foulers, the density varied between 2-260/cm2. The overall density was found to be more in bottom panels (6mt) compared to the top (1mt) and middle panels (3mt). The overall dominant species were hydroids and barnacles throughout the culture period. In the top panels, hydroids were dominant (91.67%) during December, followed by barnacles and amphipods. Additionally, complete dominance of barnacles was observed in the middle panel during May. Barnacles were found dominant (93.75%) on the bottom panels during March, followed by hydroids and crabs. The study underscored that barnacles formed a major contribution of the fouling organisms throughout the culture period. Significant variation in the occurrence and abundance of fouling organisms was observed, between the depths at cage sit

Environmental monitoring in Sea cage culture

Cage culture is a fast growing industry all over the world and demands good environmental practices to assure sustainability. The sustained development of coastal aquaculture has reached a good understanding with the environment, respecting it and undertaking actions that tend to diminish the possible impacts that may arise from this activity. In order to do so, measures are to be taken in production to avoid degrading the environment, whilst still being appropriate, economically viable and socially acceptable. In this sense, it has been considered necessary to develop some basic environmental strategies to assure the best site for the aquaculture purposes, avoiding possible confrontations with other coastal uses

Trends in the yields of major exploited fisheries of The east coast of India

On the east coast of India, the elasmobrancbs, cat fishes, 'other sardines', anchovies and white baits, 'other clupeids', sciaenids, ribbon fish, silverbelHes and penr.cid prawns form the major fisher'es and contribute about 63% of the total mar'ne fish catch of the coast. The trends in the yields of these fisheries of this coast during the 21-year period from 1932 to 1972 have been analysed. A study of th'i fluctuations in the trends in the yields assumes greater importance as no up-to-date information is available at present about the nature of trends of major exploited fisher'es of the east coast of India especially in view of the diversification of fishing on this coast. The study reveals that in West Bengal and Orissa, elasmobrancbs, cat fishes, anchovies and white baits, other clupeids. sciaenids, ribbon fish and silverbeHies form a good fishery and it is predcted that ^ese fisheries will continue to yield good catches in future also. In Andhra the fisheries ctf other sardines, other clupeids, sciaenids, ribbon fish and penaeid prawns are successful and they w'll maintain the present increasing trend in their landings in the coming years also. In Tamil Nadu, it is seen that only cat fishes, other sardines, anchovies and white baits and sciaenids form very good fishery and they will yield higher catches also in the future years