Experiment on field introductions of a stream leaf shredder (Clistoronia magnifica; Insecta; Trichoptera)

Technical Report · Mon Jan 01 04:00:00 EST 1979

OSTI ID:6027136

Hanson, B J; Cummins, K M

Stream macroinvertebrate growth rates have been used in laboratory experiments as bioassays to evaluate both food quality and the effects of temperature. Because laboratory conditions may not adequately represent the natural stream conditions of the test species and to evaluate the feasibility of large scale introductions of non-perpetuating introductions in the field, pilot studies using the leaf shredder Clistoronia magnifica were initiated. regulation of shredder growth rates probably results from a combination of the effects of temperature, food quality and competitive interactions. The relative importance of, and interactions between, these controls need to be tested in an array of streams which vary in temperature, food quality and potentially competing shredders. the experimental procedure involved with the introduction of late instars of a lentic leaf litter shredding caddisfly into a second order intermittent stream. 5 refs., 1 fig. 2 tabs.

• Research Organization: Oregon State Univ., Corvallis (USA). Dept. of Fisheries and Wildlife
• DOE Contract Number: AT06-79EV10004
• OSTI ID: 6027136
• Report Number(s): DOE/EV/10004-T5; ON: DE86010379
• Country of Publication: United States
• Language: English

Related Subjects

520100* -- Environment
Aquatic-- Basic Studies-- (-1989)
54 ENVIRONMENTAL SCIENCES
ANIMAL GROWTH
ANIMALS
ARTHROPODS
BASELINE ECOLOGY
DIPTERA
ECOLOGY
FEDERAL REGION X
FLIES
GROWTH
INSECTS
INVERTEBRATES
NORTH AMERICA
OREGON
USA