A new recorder for simultaneously recording the activity and oxygen consumption of small benthic invertebrates

Respiration studies of small benthic invertebrates are generally completed without regard to the inclusion of a substrate or the quantification of activity in the experimental chamber. We describe a new activity monitoring system for continuously recording the activity and oxygen consumption of smal...

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Bibliographic Details
Published in:Canadian journal of fisheries and aquatic sciences 1997-12, Vol.54 (12), p.2888-2893
Main Authors: Wilhelm, Frank M, Lasenby, David C, Wilhelm, Ralph M, Plante, Ron
Format: Article
Language:English
Subjects:
Animal, plant and microbial ecology
Benthic fauna
Biological and medical sciences
Diporeia hoyi
Freshwater
Fundamental and applied biological sciences. Psychology
General aspects. Techniques
Invertebrata
Invertebrates
Methods and techniques (sampling, tagging, trapping, modelling...)
Oxygen
Oxygen consumption
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Summary:Respiration studies of small benthic invertebrates are generally completed without regard to the inclusion of a substrate or the quantification of activity in the experimental chamber. We describe a new activity monitoring system for continuously recording the activity and oxygen consumption of small benthic invertebrates in water with the presence of a substrate. We used the freshwater amphipod Diporeia hoyi to test the new system. Activity rates were significantly higher without sediment than with sediment, and oxygen consumption was directly related to activity. Future invertebrate respiration studies, especially those with infaunal organisms, will benefit from such a system by allowing researchers to determine possible test condition - treatment interactions.
ISSN:0706-652X
1205-7533
DOI:10.1139/f97-179