West Umatilla Mosquito Control District
MOSQUITO FISH

WHAT ARE MOSQUITO FISH

Gambusia affinis, called mosquito fish, are indispensable to our mosquito control program. They eat mosquito larvae as fast as they hatch from eggs. Mosquito fish are furnished without charge for stocking ornamental ponds, unused or "out-of-order" swimming pools, and animal water troughs. They should never be placed in any natural habitat, such as: lakes, streams, rivers, creeks, etc. They require no feeding and care is limited to protecting them from garden sprays and from chlorine or other chemicals used to clean the pond. Mosquito fish do not lay eggs, but rather give birth to live young. These fish, therefore, require no special environment, as most other fishes do, for depositing and hatching the eggs.

HOW MANY MOSQUITO FISH WILL I NEED?

collecting mosquito fishMosquito larvae breathe at the water's surface, so they are found near the surface. Thus, surface area determines how many fish you will need. A good estimate is that 6 mosquito fish will take care of a pond 6 feet by 8 feet (surface area of 48 feet). So, if your pond has twice that surface area, get 12 fish, if pond has three times that surface area, get 18 fish, and so forth.

HOW CAN I GET MOSQUITO FISH?

Mosquito fish can be obtained from the West Umatilla Vector Control District. Call ahead to be sure they have fish on the day you wish to pick them up (phone number is listed below).

YOU MUST LIVE WITHIN THE DISTRICT TO RECEIVE MOSQUITO FISH!

Remember to call ahead to see if fish are available: (541) 567-5201

Hours are: 8:00 a.m. to 5:00 p.m.

 

West Umatilla Mosquito Control District

Dedicated to the Protection of Public Health Through the Reduction of Public Health Vectors