Reflexiones sobre la fertilización de estanques
El Prof. Boyd proporciona información adicional sobre la fertilización de los estanques acuícolas, discutiendo los requisitos de fitoplancton, los fertilizantes orgánicos e inorgánicos y otros aspectos relevantes del manejo del estanque.
Direct energy use in channel catfish production
The direct energy input values for aquaculture include energy used in constructing facilities, producing seedstock and feed, powering mechanical aerators, applying feed and harvesting and processing culture animals.
Pond bottom soil analyses
Limit pond soil analyses to soil particle size for use in pond construction decisions, initial analysis of total sulfur, occasional analyses of total nitrogen, and routine analyses of pH and soil organic carbon.
Toxicity of chemical substances in aquaculture
Prof. Boyd discusses toxicity of chemical substances in aquaculture systems and the difficulties in establishing safe concentration limits for toxic metabolites.
Toxicidad de las sustancias químicas en la acuacultura
El Prof. Boyd habla sobre la toxicidad de las sustancias químicas en los sistemas de acuacultura y las dificultades para establecer límites de concentración seguros para metabolitos tóxicos.
A review of water quality improvement products
Prof. Boyd examines products used by aquafarmers to improve water quality and conditions in their ponds and discusses their efficacy.
Salinity balance key to culture success
Outside optimal salinity ranges, aquaculture species have higher feed-conversion ratios, grow at slower rates, become stressed and susceptible to disease, or even die.
Una revisión de los productos de mejora de la calidad del agua
El Prof. Boyd examina los productos utilizados por los acuicultores para mejorar la calidad y las condiciones del agua en sus estanques y analiza su eficacia.
Sizes of substances dissolved or suspended in water
Prof. Boyd discusses concentrations and abundance of diverse substances dissolved and suspended in water, which may be either very large or extremely small.
Tamaños de sustancias disueltas o suspendidas en el agua
El Prof. Boyd analiza las concentraciones y la abundancia de diversas sustancias disueltas y suspendidas en el agua, que pueden ser muy grandes o extremadamente pequeñas.
Feed efficiency indicators for responsible aquaculture
While feed conversion ratios are often used as indexes of feed efficiency, they can be misleading as ecological indicators.
What is the role of bacteria in aquaculture ponds?
Prof. Boyd discusses the role of bacteria in the biological dynamics of ponds as essential for maintaining proper ecological function and adequate water quality.
¿Cuál es el papel de las bacterias en los estanques acuícolas?
El profesor Boyd analiza el papel de las bacterias en la dinámica biológica de los estanques como esencial para mantener una función ecológica adecuada y una calidad de agua adecuada.
Feeding affects pond water quality
Feeding allows much greater production of fish and shrimp, but nutrients in feed are not converted completely to fish or shrimp flesh.
Overview of mechanical pond aeration
Mechanical pond aerators increase the rate at which oxygen from air enters water by providing a greater surface area to facilitate diffusion.
Chemical fertilizers in pond aquaculture
Chemical fertilizers are frequently used in pond aquaculture to stimulate phytoplankton productivity and enhance the availability of natural food organisms.
Mineral salts correct ionic imbalances in culture water
Since the application of mineral salts to correct ionic imbalances has improved survival and production, the practice is becoming increasingly common.
Water quality standards: Dissolved Oxygen
Dissolved oxygen concentration is perhaps the most important variable influencing the well-being of fish, shrimp and other aquatic life.