Farm-raised freshwater shrimp give an alternative to the seafood industry to harvest shrimp without damaging sea floors in the ocean. As of now, a lot of freshwater shrimp farms can be seen within the United States.
In shrimp farming, the most difficult part is the hatching of the eggs. It requires knowledge of crustacean biology and saline water. Because of this, owners of farms purchase juvenile shrimp instead of eggs.
Freshwater shrimp cannot be raised in tanks because this species needs a lot of space and very clean water. The ponds must contain filtration and aeration. Farm-raised freshwater shrimp need a pond that has a temperature of 70 degrees Fahrenheit or above and it must have a pH of between 6.5 and 9.5. Mortality of shrimp increases when pH increases to ten or above. Cooler water can cause the shrimp to mature slowly but it can produce larger species.
Ponds need fertilization until it is fully mature because small shrimp need algae for food. However, when the shrimp reaches 5 grams or more, they already need regular feedings. They need a high-protein pelleted feeds twice a day.
This kind of species has a strict a brutal hierarchy so cannibalism and aggression may occur as they grow. Ponds must allow at least four square meters per shrimp to prevent cannibalism.
Pond-raised saltwater shrimp come from the countries that are near the equator. It allows the owners of ponds to grow more than one crop of shrimp every year because of the extended warm-weather condition. Almost 25 to 30 percent of the stocks of world shrimp come from saltwater shrimp farms and the rest from freshwater shrimp farming.
Post-larval saltwater shrimp are purchased from hatcheries. The post larval-shrimp will be stocked on ponds during April and May. If the owner is using an extensive strategy, the pond must have a stock of one post-larval shrimp per square foot. For intensive strategy, the pond must have five species per square foot.
Extensive strategy requires minimum management while for intensive strategy, feeding and water quality must be observed. Phytoplankton production is done before the small shrimp are placed into the ponds. In saltwater prawn farming, artificial feeds are also needed especially when the shrimp grows. Aerators are needed to provide oxygen to the water and pumps that will exchange the water to remove the wastes.
Saltwater shrimp are harvested during October when the weather starts to get cold. The ponds will be drained and the shrimp will be harvested with the use of nets or special pumps.