Published online by Cambridge University Press: 31 May 2012
A new technique is described for remote monitoring of aquatic invertebrate populations which was specifically designed to eliminate effects on organism behavior attendant with other surveillance systems. Specifically, the system described overcomes the necessity for surgical implantation, restrictive weight, and the generation of unnatural activity.
Activities of a wide variety of aquatic invertebrates have been monitored using this system ranging in size from crustaceans of 300–600 μ long to dragonfly naiads of 3–5 cm long.
Immature Anax sp. and Somatochlora sp. were monitored for respiratory activity in relationship to decreasing oxygen tensions. An inverse relationship was observed between respiratory frequency and amplitude of respiration.
The work upon which this manuscript is based was supported in part by funds provided by the United States Department of the Interior as authorized under the Water Resources Act of 1964, Public Law 88–379.
This paper was presented before the 1974 annual meeting of the Entomological Society of Canada in Halifax, N.S., in July 1974.