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Brine Shrimp Eggs

$5.00 / Sold Out


50 grams of Brine Shrimp Eggs for Sale

Brine shrimp, Artemia, are aquatic crustaceans that are found in saltwater lakes worldwide. Interestingly however, brine shrimp are not found in oceans. The high salinity levels in lakes provide brine shrimps an ecological niche as most fish are unable to survive in such habitats. These primitive arthropods have been so successful throughout their long history of 5.5 million years due to their ability to produce resting eggs, also known as cysts. The cysts are produced when they are faced with unfavorable conditions such as drought and food scarcity. This characteristic is called cryptobiosis, which allows brine shrimp eggs to survive for approximately two years. In fact, under favorable conditions, brine shrimp eggs can remain viable for up to 25 years. As a cyst, brine shrimp are able to survive extreme cold and temporary heat. However, a few hours of exposure to salty water triggers the brine shrimp eggs to hatch into small nauplius. This convenient characteristic and ability to be stored for an extended period of time have lead to its extensive use in aquaculture farming and a variety of fish breeding programs. Their small size, relatively high nutritional value, and ease of operation have also contributed to their popularity. In addition, the small size of the nauplii have proven useful as it allows small fry that are mechanically limited in larger particles of food to feed on a quality source of feed. Feeding instar I nauplii, which are nauplii with the egg yolk reserve still attached to their body, are especially nutritious and suitable to meet the specific dietary requirements of newborn fry. In order to further increase the nutritional value of brine shrimp, bioencapsulating or bio-enhancing by Spirulina 3-4 hours prior to using as feed is effective. However, since Artemia do not start feeding until after their second molt as instar II nauplii, this method is not effective on instar I nauplii. In addition to its increased nutritional value, this method has proved to enhance immunity in livestock by increasing phagocytic activity. Since brine shrimp can be hatched on demand after a one-day incubation period, it can prove to be cost-effective for facility with limited demand.

Size
  • Diameter of hydrated cysts: 240 microns
  • Length of Instar I nauplii: 450 microns
Nutritional Value
  • Protein: 55%
  • Fat: 14%
  • Minerals: 8.1%
  • Moisture: 7.0%
Hatching Brine Shrimp
Hatching baby brine shrimp takes approximately 24 to 48 hours. For the optimum hatching rates, use high quality eggs that were stored in an environment free from moisture at a temperature range of 5-10°C. In addition, it is important to provide the cysts with favorable conditions to trigger hatching. The following are the materials required to hatch brine shrimp eggs:
  • Brine shrimp eggs
  • Marine salt
  • Dechlorinated water
  • Hatching cone
  • Air supply
  • Light source
Prepare the solution by dissolving 2 tablespoon of salt per gallon of dechlorinated water. The salinity should be at least 15 ppt (parts per thousand) at a gravity of 1.011 measured with a hydrometer. The salinity can be as high as 40 ppt at a gravity of 1.030. Proper pH is also important since low pH can drastically drop the hatch rate. Optimum pH is between 8.0 and 8.5. Baking soda can be added to control the pH. This solution will be set up in a cone shaped container with the narrow end at the bottom. This is to allow all incubating eggs to circulate and aerate. For this purpose, flat bottom hatching vessels are generally not used. Standard 2 liter bottles can be utilized by removing the base and flipping it upside down. In order to provide high oxygen levels to the cysts, it is crucial to have constant and strong aeration. 3 ppm (parts per million) is desirable for optimum hatch rates. A standard airpump and airline tubing setup is sufficient for most setups. The end of the airline tubing must be weighed down or secured to the bottom of the container. Airstones that discharge small bubbles are not recommended as it can result in hatched nauplii to stick to the bubble and die. However, larger bubbles and strong aeration will not damage the nauplii. For the light source, fluorescent lamps or any 60-100 watt bulb placed 3 to 8 inches away from the hatching cone will be sufficient. The light source will aid in raising the temperature to the desired range of 26-28°C. Incubation in the lower temperature range will result in longer hatching time. However, do not exceed temperature above 30°C. Once the aerated saline solution is placed under a light source, add the cysts into the hatching cone. For optimum hatching rates, add 1 gram of brine shrimp egg per liter. Cysts will hatch in approximately 24 to 48 hours. After hatching brine shrimp, stop the air supply to allow the water to settle. After a couple minutes, the newly hatched nauplii will either settle on the bottom of the hatching cone or congregate near the light source. At this time, the shells can be separated from the nauplii as it will float on the surface. Since the environment for incubating Artemia is also ideal for other bacteria, it is important to rinse the baby brine shrimp with clean fresh or salt water through a fine mesh prior to feeding them to fry. Likewise, equipment used for incubation should also be cleaned and disinfected. Diluted household bleach solution or a light chlorine solution can be used. However, soap should be avoided. Rinse well and air-dry between uses. The following summarizes the optimum parameters for hatching baby brine shrimp:
  • Salinity: 15-40 ppt
  • pH: 8.0-8.5
  • Temperature: 26-28°C
  • Aeration: 3 ppm
  • Stock Density: 1 gram of cyst per liter

Brine Shrimp Life Cycle
Brine shrimp start their year long life cycle as nauplii from either a developing embryo in a mature female or from a dormant cyst. At this very first stage as an instar I nauplii, they measure only 240 microns. As soon as the yolk sac is absorbed, they become instar II nauplii. As the nauplii goes through their series of 14 to 17 molts as a brine shrimp larvae, they shed their old exoskeleton to allow growth. The best growth rate in Artemia can be observed under warm water, stable food source, and high oxygen levels. At such optimum conditions, brine shrimp can develop from a nauplii to an adult in as little as 8 days. In their natural environment however, it is more common for brine shrimp to mature during a longer span of approximately 3 to 6 weeks. Adult female brine shrimp under favorable conditions will go through viviparous reproduction by releasing developing embryos into the water. Viviparous reproduction is common in lower salinity levels. On the other hand, oviparous reproduction occurs under unfavorable condition when salinity level exceeds 150 ppt. The embryo develops into gastrulae, encapsulated in a protective cyst shell. In their natural environments, the hatching mechanism is triggered when the salinity level drops with rainwater and other incoming water source.