Serious shrimp-disease outbreaks have reduced shrimp production and slowed industry growth since 1991. This paper tests factors such as farm sitting and design, and farm-management practices for relationships with disease occurrence. Logistic regression is used to analyze farm-level data from 3951 shrimp farms in 13 Asian countries. Disease occurrence is modeled as a 0-1 variable where 1 = dise...

An engineered aquatic ecosystem was specifically designed to bioremediate selenium (Se), occurring as oxidized inorganic selenate from hypersalinized agricultural drainage water while producing brine shrimp enriched in organic Se and omega-3 and omega-6 fatty acids for use in value added nutraceutical food supplements. Selenate was successfully bioremediated by microalgal metabolism into organi...

A survey of 101 shrimp farms in Ecuador revealed that the average annual yield based on production pond water surface area was 7.03 ± 0.93 (SE) t/ha/year. The range among five provinces with 3.67 0.71 to 11.95 5.56 t/ha year, respectively. Averages for total land, water, and energy use were 0.54 0.01 ha/t shrimp, 76,817 6,330 m3/t 61.2 4.2 GJ/t Average wild fish meal oil included feed 0.65 0.02...

The main problem in intensive shrimp pond culture is a decrease the quality of proper water during rearing and emergence disease. This resulted decreased productivity vaname shrimp. One efforts made through application sludge management methods, with aim reducing pile at bottom ponds. Sludge methods include system, CRS (Close Resirculating System), Semi Close, biofloc. writing method used liter...

A yellow-coloured, aerobic, Gram-negative, rod-shaped bacterial strain, designated B-I(T), was isolated from the water of a shrimp (Litopenaeus vannamei) mariculture pond in Taiwan. No species with a validly published name showed 16S rRNA gene sequence similarity of more than 96.5 % to this novel isolate. The highest sequence similarities displayed by strain B-I(T) (93.2-96.1 %) were to members...