Usually, dissolved oxygen is the first and most critical limiting factor. Then it depends upon other water-quality parameters what the next limiting factor is. In poorly buffered and slightly acidic waters where pure oxygen is not added and carbon dioxide removed, the next limiting factors after dissolved oxygen are solids and nitrogenous wastes excreted by the fish. In flow-through systems with poorly buffered and slightly acid water where pure oxygen is added, the next limiting factor is dissolved carbon dioxide. In systems where the pH is greater than 7.5 and total alkalinity as CaCO3 is greater than 60 mg/L, then the next limiting factor is un-ionized ammonia.
These resources are brought to you by the Cooperative Extension System and your Local Institution
Welcome
eXtension is an interactive learning environment delivering the best, most researched knowledge from the smartest land-grant university minds across America.
eXtension: more mind reach
Have a question? Try asking one of our Experts
What are the limiting factors for flow-through trout production systems?
Last Updated: July 30, 2011
Have a specific question? Try asking one of our Experts
Unlike most other resources on the web, we have experts from Universities around the country ready to answer your questions.
