Improvement of the methods included in the World Organisation for Animal Health (OIE) Manual of Diagnostic Tests for Aquatic Animals and addition of novel techniques are dependent on the continual development and evaluation of both new and existing methods. Although conventional isolation and characterisation techniques for the diagnosis of many diseases still remain the methods of choice there...

Aeromonas hydrophila is a Gram-negative, oxidase-positive, facultative, anaerobic, opportunistic aquatic pathogen. A. hydrophila produces virulence factors, such as hemolysins, aerolysins, adhesins, enterotoxins, phospholipase and lipase. In addition to isolation from aquatic sources, A. hydrophila has been isolated from meat and meat products, milk and dairy products, and vegetables. However, ...

Abstract Species coculture can increase agro-biodiversity and therefore constitutes an ecological intensification measure for agriculture. Rice-aquatic animal coculture, one type of species has been practiced researched widely. Here, we review recent studies present results a quantitative analysis literature on rice–aquatic systems. We address three questions: (i) rice yield soil fertility be m...

background: the approaches chosen for control of outbreaks of infectious diseases in aquatic farming industry include improvement of environmental conditions, stocking of specific pathogen free (spf) brood stockings, and application of vaccines and immunostimulants. despite numerous studies on the effects of ergosan on immune system of aquatic animals, there is no data available on antioxidant ...

Hazard assessment of chemicals to aquatic organisms involves the use of many toxicity tests. Acute toxicity tests, embryo-larval toxicity tests, and chronic toxicity tests that measure survival, growth, and reproductive effects now provide the most relative utility for evaluation of potential chemical hazards to aquatic life. Physiological, biochemical, and histological measurements have a low ...

Submerged aquatic vegetation or “SAV” includes both flowering and non-flowering plants that grow completely underwater. In the Chesapeake Bay region, the term “SAV” usually refers to various rooted aquatic angiosperms or “underwater grasses” found growing in shallow areas ranging from high salinity to freshwater tidal environments. Approximately 20 species are commonly found throughout Chesapea...