It is estimated that 99 percent of all production problems in crawfish ponds are related to poor water quality. Dissolved oxygen (D.O.) is the most serious problem, but pH, total hardness, total alkalinity, ammonia, nitrite, hydrogen sulfide, and iron can also affect crawfish production.
DNA Land is a place where you can learn more about your genome while enabling scientists to make new genetic discoveries for the benefit of humanity. Our goal is to help members to interpret their data and to enable their contribution to research.
Confidence votes 50. A desert is any dry terrestrial area on Earth. Desert covers about 1/5 of the Earth's land surface. That being said, it is also important to know that a desert can be hot OR cold, a common misconception being that they are always hot.Antarctica is the world's largest desert due to its very low rainfall and massive area.Hot deserts are all over the world, extending into the USA, South America, Africa, Europe, Australia, and Asia. In many places, mostly in Australia and Asia.onfidence votes 50. A desert is any dry terrestrial area on Earth. Desert covers about 1/5 of the Earth's land surface. That being said, it is also important to know that a desert can be hot OR cold, a common misconception being that they are always hot.