Effects of Short-Term Flow Fluctuations on Displacement of, and Habitat Use by, Brown Trout in a Small Stream
- 1 July 1988
- journal article
- research article
- Published by Oxford University Press (OUP) in Transactions of the American Fisheries Society
- Vol. 117 (4) , 336-344
- https://doi.org/10.1577/1548-8659(1988)117<0336:eosffo>2.3.co;2
Abstract
Induced peaking flows that increased discharge 4–100 times (up to 350 L·s–1) in a small stream did not displace brown trout Salmo trutta (mean total length ≥ 67 mm) downstream. Coarse substrate was thought to be essential by creating low-water-velocity microniches. In the available habitat, brown trout were significantly associated with certain depths, water velocities, substrate, and cover. Larger fish occupied areas with deeper water and more cover than did yearling brown trout. Short-term changes in flow did not influence habitat use. Fluctuating flows increased emigration slightly, especially at night.This publication has 9 references indexed in Scilit:
- Downstream migration and critical water velocities in stream channels for fry of four salmonid speciesJournal of Fish Biology, 1988
- The effects of intra‐ and inter‐specific competition on the distribution of stocked juvenile Atlantic salmon, Salmo salar L., in relation to depth and gradient in an upland trout, Salmo trutta L., streamJournal of Fish Biology, 1986
- Effects of varying discharge on the downstream movement of salmon fry, Oncorhynchus tshawytscha WalbaumJournal of Fish Biology, 1986
- Foraging Behavior of Free-Ranging Wild and Hatchery Brown Trout in a StreamTransactions of the American Fisheries Society, 1984
- Microhabitats Chosen by Brown Trout for Feeding and Spawning in RiversTransactions of the American Fisheries Society, 1983
- Winter Distribution of Juvenile Coho Salmon (Oncorhynchus kisutch) Before and After Logging in Carnation Creek, British Columbia, and Some Implications for Overwinter SurvivalCanadian Journal of Fisheries and Aquatic Sciences, 1983
- The distribution of salmonids in upland streams in relation to depth and gradientJournal of Fish Biology, 1982
- Habitat Selection and Intercohort Competition of Juvenile Sea-Trout Salmo truttaOikos, 1977
- Observations on Behavior of Juvenile Brown Trout in a Stream Aquarium During Winter and SpringJournal of the Fisheries Research Board of Canada, 1963