Indoor Pools

The water that we bathe in may contain mites. The swimming pool mite, Hydronothus crispus occurs in large numbers in indoor pools in Japan. It completes its entire life cycle in indoor pools (Robinson 2005). In a study on indoor pools, 53% tested positive for mites with a highest density around 50 individuals/m2. Two other species seem to compete with H. crispus, Trimalaconothrus maniculatus and Histiostoma ocellatum. Individual pools were mainly colonised by a single species (Kazumi et al. 1992).

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