title: Monitoring of shallow sea environment by using snapping shrimps.
abstract: We examine the validity of pulse count of snapping shrimps for sea environmental monitoring. Snapping shrimps, which make a peculiar pulse sound, are found everywhere in the world. Pulse count can be achieved merely by recording their sounds for a few minutes by using a hydrophone without special biological knowledge. From field surveys and laboratory experiments, we found that the pulse count depends on water temperature when sea environment is normal, and it falls due to the occurrence of oxygen-deficient water. The results show that this method can be a useful index of the effect of water pollution on benthic animals in fixed-point observation.
authors.affiliation: Department of Civil Engineering, Yamaguchi University, 2-16-1 Tokiwadai, Ube, Yamaguchi 855-8611, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Watanabe
authors.forename: M
authors.initials: M
authors.lastname: Sekine
authors.forename: E
authors.initials: E
authors.lastname: Hamada
authors.forename: M
authors.initials: M
authors.lastname: Ukita
authors.forename: T
authors.initials: T
authors.lastname: Imai
mesh_terms: D000162:Acoustics; D000819:Animal Communication; D000818:Animals; D001522:Behavior, Animal; D033364:Decapoda; D004784:Environmental Monitoring / Q000379:methods*; D010100:Oxygen; D013696:Temperature; D014873:Water Pollutants / Q000009:adverse effects*
chemical_list: D014873:Water Pollutants; D010100:Oxygen