Responsibility
Aquaculture certification programs reduce the environmental impacts of aquaculture and avoid negative impacts on biodiversity, but no single indicator of biodiversity can be used as a standard in aquaculture certification.
Responsibility
La intensificación de la acuacultura en estanques implica el uso de fertilizantes comerciales como la urea y el superfosfato triple para estimular las floraciones de fitoplancton. No hay una forma objetiva de determinar la tasa de fertilización ideal para un estanque individual.
Responsibility
Los fertilizantes comerciales de nitrógeno y fósforo son ampliamente utilizados en los sistemas de producción acuícola para estimular el crecimiento del fitoplancton y la trama trófica que proporciona organismos alimenticios naturales beneficiosos para alevines y postlarvas de camarones.
Responsibility
Intensification of pond aquaculture involves the use of commercial fertilizers such as urea and triple superphosphate to stimulate phytoplankton blooms. There is no objective way of determining the ideal fertilization rate for an individual pond.
Responsibility
Commercial nitrogen and phosphorus fertilizers are widely used in aquaculture production systems to stimulate phytoplankton growth and the food web that provides natural food organisms beneficial to stocked fish fry and shrimp postlarvae.
Aquafeeds
Manufactured aquafeeds, if improperly managed, can result in undesirable oxygen demand that can reduce dissolved oxygen levels and pollution through effluents, and stress cultured animals.
Responsibility
Este estudio de piedra caliza agrícola de cinco diferentes canteras estadounidenses determinó que las muestras tenían composiciones químicas comparables, pero solubilidades algo diferentes en agua. Este procedimiento podría ser útil para lograr mejores resultados cuando estos productos se usan en el encalado de estanques acuícolas.
Responsibility
The Coriolis effect has no bearing on aerator placement and aquaculture pond management. The most important consideration with mechanical aeration is to provide a sufficient amount to maintain adequate dissolved oxygen concentration.
Responsibility
This study of agricultural limestone from five different U.S. quarries determined that the samples had comparable chemical compositions but somewhat different solubilities in water. This procedure might be helpful in achieving better results when these products are used in the liming of aquaculture ponds.
Health & Welfare
Los organismos fitoplanctónicos, o microalgas, son muy abundantes en los estanques de acuacultura y tienen un papel crítico en estos ecosistemas, influyendo significativamente en la ecología general del estanque y en la calidad del agua. El manejo adecuado de las poblaciones de fitoplancton es esencial para el éxito de la producción de estanques acuícolas.
Responsibility
It is one of the most commonly measured water quality variables in aquaculture, and probably the most misunderstood water quality variable in aquaculture. The pH levels in water have a propensity to change rapidly, but this is a natural phenomenon that often has little consequences and not much can be done to avoid it.
Responsibility
La comprensión del ciclo hidrológico, las propiedades físicas únicas del agua y su comportamiento en sistemas acuícolas - fases, humedad, saturación, estratificación, reflexión de la luz y refracción- es pertinente para manejar adecuadamente la calidad del agua en los sistemas de producción, según el reconocido experto Dr. Claude Boyd.
Responsibility
Understanding the hydrologic cycle, water’s unique physical properties and their behavior in aquaculture systems – phases, humidity, saturation, stratification, light reflection and refraction – is pertinent to properly manage water quality in production systems, according to world-renowned expert Dr. Claude Boyd.
Responsibility
Nitrogen and phosphorus are the most important nutrients in fertilization of both freshwater and coastal ponds. Many factors that can affect the response of ponds to fertilizers are location-specific. Aquaculture pond managers will have to figure out the best procedure for a given location or even for an individual pond.
Responsibility
Total alkalinity is an important variable in water for aquaculture systems, and its concentration frequently fluctuates over time in many culture systems.
Responsibility
Keep adequate concentrations of dissolved oxygen in the culture water by balancing stocking and feeding rates with the amount of mechanical aeration applied. To prevent anaerobic conditions at the sediment-water interface, aerators should be positioned to promote the flow of oxygenated water across the pond bottom.