Journal ArticleDOI
Some Factors Affecting Drift and Upstream Movements of Gammarus Pulex
D. A. Hughes,D. A. Hughes +1 more
TLDR
Laboratory experiments suggest that upstream movements of the amphipod Gammarus pulex, especially in regions of slower current flow, are sufficient to compensate for the downstream displacements of animals by drift.Abstract:
Laboratory experiments, conducted within a current chamber, suggest that upstream movements of the amphipod Gammarus pulex, especially in regions of slower current flow, are sufficient to compensate for the downstream displacements of animals by drift. They indicate also that drift was greater in slow—flowing than in faster waters. See full-text article at JSTORread more
Citations
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Journal ArticleDOI
Hydraulic Stream Ecology: Observed Patterns and Potential Applications
TL;DR: Hydraulic stream ecology provides methods to scale flow in lotic research, which will lead to an increase in replicability and predictability in studies of running water ecosystems.
Journal ArticleDOI
The Drift of Stream Insects
TL;DR: The drift of stream insects and other invertebrates refers to their down stream transport in stream currents, and it has interested many ecologists that the drift usually occurs in some type of diel periodicity.
Book ChapterDOI
Habitat Selection by Aquatic Invertebrates
P.S. Meadows,J.I. Campbell +1 more
TL;DR: This chapter explains why animals are found in certain habitats and not in others, and it is restricted to a consideration of habitat selection by marine and freshwater invertebrates as revealed by experimental analysis.
Journal ArticleDOI
Migration and Metabolism in a Temperate Stream Ecosystem
TL;DR: Fish migration, total stream metabolism, and phosphous were studied in New Hope Creek, North Carolina, from April 1968 to June 1970 as mentioned in this paper, where both upstream and downstream movement of fish was monitored using weirs with traps.
Journal ArticleDOI
Stream Drift as a Chronobiological Phenomenon in Running Water Ecosystems
TL;DR: A review of a number of independent studies, performed in various parts of the world, which have shown that stream drift occurs with a diel rhythmic pattern and that the invertebrates in running water are able to perceive the differentiated day and night length.
References
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Journal ArticleDOI
Interpretation of Invertebrate Drift in Streams
TL;DR: In general, it appears that the accumulation of organisms in drift nets is the result of a permanent displacement of the organisms downstream, and notThe result of nondirectional activity in the immediate vicinity of the nets.
Journal ArticleDOI
Diurnal Periodicity in the Drift of Stream Invertebrates
TL;DR: The purpose of the present study was to document more intensively this phenomenon of diurnal periodicity in the drift rate in streams, and to confirm the daily changes as regularly occurring events.
Journal ArticleDOI
The Effect of Reduction in Stream Flow on Invertebrate Drift
TL;DR: Artificial reduction of stream discharge resulted in an increase in benthic invertebrates in the drift and entry into the drift seemed an active process initiated by changes in current velocity and depth, and resulting in reversal of the normal avoidance response to light.
Journal ArticleDOI
Some Factors Affecting Drift Rates of Baetis and Simuliidae in a Large River
TL;DR: Effects of eight factors on the drift rates of Baetis nymphs and Simuliidae larvae were tested with multiple regression analyses and Illumination, population density of all other organisms and temperature had significant influences on Drift rates of both organisms.
Journal ArticleDOI
Responses to salinity change as a tidal transport mechanism of pink shrimp, penaeus duorarum
TL;DR: Salinity changes, similar to those occurring with change in tide in the inshore environment usually occupied by pink shrimp, were imposed on both postlarvae and juveniles in a constant-current apparatus.