Environmental microbes and its role in health management - Winter school on recent advances in diagnosis and management of diseases in mariculture, 7th to 27th November 2002, Course Manual

Microorganisms are of major important in aquaculture and industrial wastewater treatment. They reside in the sediment and other substrates, and in the water of aquaculture facilities, as well as in and on the cultured species. Microorganisms may have positive or negative effects on the outcome of aquaculture operations. Positive microbial activities include elimination of toxic materials such as ammonia, nitrite, and hydrogen sulfide, degradation of uneaten feed, and nutrition of aquatic animals such as shrimp, fish; production of aqua-farmer. These and other functions make microorganisms key players in the health and sustainability of aquaculture. Yet, microorganisms are among the least known and understood elements in aquaculture, Like other areas in aquaculture, microorganisms require management and Manipulation

औषध और कीडे: जलकृषि में प्रतिसूक्ष्म जीवी कारकों का प्रभाव

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जलकृषि तालाबों में रोगाणुओं की विविधता और आवास तंत्र

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Economic importance of marine micro organisms

Bacteria and allied micro-organisms are of direct economic concern to man in many ways besides causing diseases and bringing about the decomposition of marine a,nimals and commercial algae . There are many p roblems in the general economy of the ocean, the solution of which requires the aid of the microbiolog ist

Bioremediation: Eco Technology of Cultured Water Using Efficient Microbes (ECO Microbes)

The emerging role of bacteria in the field of bioremediation eco- technology with countless new genes and biochemical pathways using antagonistic compounds and other useful molecules has generated new interest in them. After testing all the physical, chemical and biological means of bioremediation it has been found that for management of contaminated waters the best option is microbiological treatment which is more efficient economically and consumes less energy. “In situ” bioremediation is the cleanup approach where the dissolved and absorbed contaminants are in contact with microorganisms. The microorganisms act well only when the waste material helps them to generate energy and nutrients to build up more cells. Lack of biodegradation capacity of native microorganisms can be overcome by addition of selective substrates during. Insitu bio remediation or manipulate the native microorganisms for efficient and speedy biodegradation

मत्स्य पालन में मत्स्य रोग का जैविक नियंत्रण्

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ग्रीन हाउस गैसों द्वारा जलवायु परिवर्तन और सागर एवं मछ्ली स्वास्थ्य पर इसका प्रभाव

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Distribution of heterotrophic bacteria around Laccadive Islands

Distribution of heterotrophic bacteria in water samples collected from surface and 50 m depth in 26 stations around Laccadives in EEZ between 08°50' and 12° and 71° and 74° E onboard FORV Sagar Sampada was studied. The size of colonies isolated from surface water were very small when compared to colonies from 50 m depth. Green fluorescent Pseudomonas was predominant in some stations. Counts ranged from 0.81 x 10^/ml to 2.66 x 10* /ml in surface waters and 0.9 x 10^/ml to 2.20 X 10 /ml in 50 m depth. Night samples harboured less counts when compared to daytime samples. Out of 23 cultures studied Vibrio, Alcaligenes, green fluorescent Pseudomonas formed the main flora and members of Enterobacteriaceae were absent. Both gram-positive and gram- negative bacteria were isolated of which 94.6% were gram-negative rods. Their correlation with environmental parameters are discussed

मछ्ली पकड और पालन में एल नीनो का प्रभाव

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मात्स्यिकी प्रबंधन में टैगन का सांगत्य

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