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…a model for these country-level codes of practice. Additional information on good management practices for shrimp aquaculture was presented by C. E. Boyd and Maria Haws at the Symposio 5…

…produced in ponds and other outdoor, static waters. Boyd, decomposition, Table 1 Organic materialConcentration (% dry weight) CarbonConcentration (% dry weight) Nitrogen Livestock manure: Swine 40.6 3.01 Livestock manure: Dairy…

…al aire libre. Boyd, descomposición, Tabla 1 Material orgánicoConcentración (% peso seco) CarbonoConcentración (% peso seco) Nitrógeno Estiércol de ganado: Porcinos 40.6 3.01 Estiércol de ganado: Lácteos 38.2 2.98 Estiércol…

Dr. Claude Boyd on the interpretation of oxidation-reduction reaction in aquaculture ponds Pic. 1: In aquaculture ponds, the objective should be to maintain aerobic conditions – redox above 0.5 volt…

Dr. Boyd: It’s more important to consider aerators’ impact on soil erosion The most important issue with mechanical aeration is to provide a sufficient amount to maintain adequate dissolved oxygen…

…kg of uneaten feed; 195 kg of feces; 855 kg of metabolic waste from the culture species; 250 kg of shrimp biomass. Boyd, effluent, Table 1 Fraction of feedTypical percentage…

…Boyd (Auburn University, Alabama, USA) suggested the following terminology to be used in reference to shrimp farming in non-traditional areas: There should be clear reference to “marine” shrimp as opposed…

Prof. Boyd explains the basic reactions of this widely used practice Applications of agricultural limestone in aquaculture ponds is a widely used practice to improve pH and alkalinity. Photo by…

…alimento no consumido; 195 kg de heces; 855 kg de residuos metabólicos de las especies de cultivo; 250 kg de biomasa de camarón. Boyd, effluente, Tabla 1 Fracción de alimentoPorcentaje…

…posibilidad de salinización de suelos y aguas. Hace algunos años, el Dr. Claude Boyd (Universidad de Auburn, Alabama, EE.UU.) sugirió la siguiente terminología para ser usada en referencia al cultivo…

El profesor Boyd explica las reacciones básicas de esta práctica ampliamente utilizada Las aplicaciones de caliza agrícola en estanques acuícolas son una práctica ampliamente utilizada para mejorar el pH y…

Professor Boyd: Little effect expected on aquaculture systems, but greater concern with global warming and climate change Changes in atmospheric carbon dioxide and alkalinity in freshwater aquaculture are expected to…

Profesor Boyd: Se espera poco efecto en los sistemas de acuacultura, pero mayor preocupación por el calentamiento global y el cambio climático Los cambios en el dióxido de carbono atmosférico…

…river water, but sodium and chloride are the dominant ions in seawater. Magnesium also is more abundant than calcium in seawater, while the opposite is true in freshwater. Boyd, Water…

Prof. Boyd: No single indicator can be used as a standard The overarching theme of aquaculture certification is to avoid negative impacts of aquaculture on biodiversity, a widely-used word that…

…on growth. Boyd, Effects of Salinity, Table 1 Salinity (ppt)Food Energy to Growth (%) 0.5 33.4 2.5 31.8 4.5 22.2 6.5 20.1 8.5 10.4 10.5 -1.0 Table 1. Effects of…

Prof. Boyd: No se puede usar ningún indicador individual como un estándar El tema principal de la certificación acuícola es evitar los impactos negativos de la acuacultura en la biodiversidad,…

…shrimp from untreated ponds. Boyd, Copper in water and fillets, Table 1 TreatmentDissolved Copper in Water (ppb)Copper in Fillets (ppm) Control 1.9a 0.54 (range 0.35-0.78)a Weekly copper sulfate application 14.3b…