Behavioural responses of caddisfly larvae (Hydropsyche angustipennis) to hypoxia

13Citations
Citations of this article
39Readers
Mendeley users who have this article in their library.

Abstract

The availability of aquatic oxygen can limit habitat suitability for benthic insects, and differences in hypoxia tolerance can therefore play a role in explaining distributions in the field. This study describes a behavioural test in which the trade off between different survival strategies after exposure to different oxygen concentrations is analyzed, using the caddisfly Hydropsyche angustipennis as a model organism. The impedance conversion technique was used to quantify patterns of behaviour for individual caddisflies at three levels of dissolved oxygen (100%, 50%, and 30% saturation) under controlled laboratory conditions. Exposure to hypoxia resulted in behavioural changes: under low-oxygen conditions, larvae increased their ventilation rate, which may increase oxygen uptake. However, they also increased the time spent on other activities, which may reflect avoidance behaviour.

Cite

CITATION STYLE

APA

Van Der Geest, H. G. (2007). Behavioural responses of caddisfly larvae (Hydropsyche angustipennis) to hypoxia. Contributions to Zoology, 76(4), 255–260. https://doi.org/10.1163/18759866-07604004

Register to see more suggestions

Mendeley helps you to discover research relevant for your work.

Already have an account?

Save time finding and organizing research with Mendeley

Sign up for free