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Zeolite is used in industry for water softening and as media for molecular sieves but has no real benefit for aquaculture in ammonia removal. 

Water's ability to conduct electricity increases with the total concentration of dissolved ions. Measuring conductivity helps estimate salt content of water. 

It behooves us to understand land and water use issues and understand the differences between aquaculture and traditional agriculture. 

The pH of shrimp pond water is influenced by source water, pH and acidity of bottom soil, shrimp culture inputs and biological activity. 

Two nutrient elements, nitrogen and phosphorus, are responsible for eutrophication in most instances. Phosphorus is usually the key factor. 

For seawater or brackish water aquaculture management, the salicylate method is best for total ammonia nitrogen analysis. 

A major environmental consideration in shrimp farming is the negative impacts of pond effluents on coastal water quality. 

Because aquaculture is a water-intensive endeavor, conservationists have begun to inquire about the possibility of excessive water use in aquaculture. 

Settling basins seem to be the only practical means of treating effluents released during harvest at small or large shrimp farms. 

Natural waters have a very complex chemical composition and may contain almost any substance found in the atmosphere, in the Earth’s crust, or in living organisms. 

Nitrogen and phosphorus are contained in aquaculture pond effluents, and these two nutrients can cause eutrophication of natural waters. 

In part two of this series, the authors suggest steps to reduce the pollution potential of shrimp farming by paying special attention to uneaten feed. 

As a protein source and fishmeal replacement in European sea bass diets, a microbial enhanced protein demonstrates cost effectiveness and other benefits. 

The preventive use of common salt (sodium chloride) by commercial producers of freshwater fishes has many benefits, including helping with the routine prevention of losses due to diseases, stress and mishandling during transport, harvesting, grading, counting, weighing and induced spawning. 

El uso preventivo de sal común (cloruro de sodio) por los productores comerciales de peces de agua dulce tiene muchos beneficios, incluyendo ayudar a la prevención de rutina de pérdidas debidas a las enfermedades, el estrés y el mal manejo durante el transporte, recolección, clasificación, conteo, pesaje y desove inducido. 

Aerators, especially paddlewheels, are often used to mix the water and address oxygen stratification in ponds. However, most aerators do not provide the most efficient and power-conscious service. Due to thermal and oxygen stratification in ponds, the efficiency of paddlewheel aerators is low, and other present-day aerators have other problems. Emerging designs should better address effective mixing and aerating of pond water. 

At the Guatemalan Aquaculture Symposium in Antigua, the focus was shrimp farming in the region: production, nutrition, health management and markets. 

En el Simposio de Acuacultura de Guatemala en Antigua, el enfoque fue el cultivo de camarón en la región: producción, nutrición, gestión de la salud y mercados.