Tag photosynthesis

Dissolved oxygen management is the most important requirement of aquaculture pond water quality. DO concentration below 3 mg/L is stressful to shrimp. 

Changes in atmospheric carbon dioxide concentration should have little effect on rising alkalinity concentration in aquaculture systems. Climate change is of greater concern in freshwater aquaculture than is an increase in alkalinity. 

Phytoplankton has several important effects on water quality, including removing ammonia nitrogen from water and absorbing nutrients from the water for its growth. Abundance of blue-green algae tends to increase as nutrient inputs in aquafeeds or fertilizers increase. 

Total alkalinity is an important variable in water for aquaculture systems, and its concentration frequently fluctuates over time in many culture systems. 

Muchos estanques acuícolas requieren aireación mecánica tanto para aumentar los niveles de oxígeno disuelto como para favorecer la mezcla de las aguas ricas y pobres en oxígeno, que también ayuda a prevenir el volteo. 

Promoting water circulation during the day time is an effective strategy to enrich pond water with oxygen produced by photosynthesis, and can significantly reduce the costs of night time supplemental aeration. Many types of effective, commercial water circulators are available. 

Promoting water circulation during the day time is an effective strategy to enrich pond water with oxygen produced by photosynthesis, and can significantly reduce the costs of night time supplemental aeration. 

Light penetrating water is scattered and absorbed exponentially as it passes downward. The presence of dissolved organic matter and suspended solids further impedes light penetration, and different types of solids absorb different wavelengths. 

When aquaculture pond water suddenly warms, gas bubbles can form in the blood of aquatic animals and lead to stress or mortality. 

The simplest tool for assessing phytoplankton abundance in aquaculture ponds is the Secchi disk. An electronic turbidimeter can be used to measure the amount of light scattered by a water sample.