Water Mites

Water Mites


(Hydracarina), a group of mites with an aquatic life-style.

Freshwater mites (Hydrachnellae) usually are brightly colored; body length is 0.3-5.0 mm. A six-legged larva emerges from the egg; in many species it parasitizes insects. The larva becomes an eight-legged nymph and finally the mature mite. The mites are carnivorous and suck crayfish, insect larvae, and similar prey. Water mites are widespread, dwelling in standing and flowing bodies of water, in cold springs, and in underground waters. Representatives of one genus are found in hot springs. There are about 2,000 species belonging to 200 genera; about 450 species are known in the USSR.

Sea mites (Halacarae) are small (no larger than 1 mm), with both vegetarian and carnivorous forms. Four stages occur in their development: a six-legged larva, two nymph forms, and the adult mite. There are two families which combine more than 200 species. The family Halacaridae is found in all seas at various depths and is particularly abundant in sublittoral areas. Representatives of the second family, the Porohalacaridae, live in fresh water and are rarely encountered.


Fauna SSSR: Paukoobraznye, vol. 5, issues 2 and 5, parts 1-2. Moscow-Leningrad, 1940-52.
Zhizn’ zhivotnykh, vol. 3. Moscow, 1969.


References in periodicals archive ?
Key to families and subfamilies of water mites (Hydracarina) in Australia.
Fernandez (1993, 1994, 2001) published a sequence of papers on interstitial water mites using the Bou-Rouch method (Bou, 1974).
What I want to do this morning is give you an overview of some research that I have been doing for the past twenty years or so involving the ecology and evolution of water mites of the genus Unionicola that live in symbiotic association with freshwater mussels and snails.
"I picked up a viral infection from water mites in Hong Kong and had big skin sores and was sick all night after swimming in a disgusting river in China.
However, of all the dietary items, detritus contributed most by occurrence (51.54 %) and by weight (12.84 %), while fish scales and water mites were less significant.
Specifically for damselflies parasitized by water mites, the factors known to mediate sex-biases in parasitism include sex differences in immunity, adult behavior and/or phenology (Yourth et al.
We found a blood worm, a pond snail, some water mites and a water boatman."
While she sucks a person's blood, little red water mites are sucking blood from her!
Smith (1988) also suggested that insect flight activity could be impeded by actual damage to flight musculature from feeding tube formation by Arrenurus water mites.
Water mites were essentially pelagic, almost disappearing from the water column during the day, the densities being higher in C than in A and B at night (p = 0.003) (Figure 2).