Abstract
The distribution of larval Prosimulium mixtum, Stegopterna mutata, Cnephia ornithophilia, and Simulium vittatum are discussed in relation to temperature, pH, stream order, stream origin, current velocity, and time. The influence of microcurrents and larval density on P. mixtum and St. mutata are discussed. The distribution along the stream bed changed with time. The data suggested that with these two species the spacing of the larvae and changes in microcurrent preferences displaced the population downstream as development proceeded, although other factors may play a role in the displacement. The distribution of the other two species was closely tied to the oviposition sites at lake outlets and showed little displacement with time. It is also suggested that competition between simuliids occurs although further research will be required.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
