title: Effects of Oxygen and Temperature on the Activity and. Survival of Nothanguina phyllobia.
abstract: The effects of oxygen and temperature on the activity and survival of infective forth-stage juveniles of Nothanguina phyllobia Thorne were examined in aqueous suspension. Rate of movement was not affected by a wide range of O concentration (0.8-8.6 ppm). Activity decreased below 0.8 ppm 0 2, and at 0.15 ppm O nematodes became motionless. Activity increased as a linear function of temperature up to a thermal optimum of 24 C; beyond 24 C activity decreased. Survival was greatly prolonged at low temperature. At 23 C, 50% mortality occurred within 7 d, whereas at 4 C, 70% survived after 98 d.
authors.forename: A F
authors.initials: AF
authors.lastname: Robinson
authors.forename: C C
authors.initials: CC
authors.lastname: Orr
authors.forename: C E
authors.initials: CE
authors.lastname: Heintz