The Effects of Siltation on Embryonic Mortality of Trout

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Title: The Effects of Siltation on Embryonic Mortality of Trout
Creators: Koonce, Joseph F.; Teraguchi, Mitsuo
Contributors: Ohio State University. Water Resources Center; United States. Office of Water Research and Technology
Subjects (LCSH): Fish populations -- Ohio
Fishery management -- Ohio
Issue Date: 1980-07
Publisher: Ohio State University. Water Resources Center
Series/Report no.: Project completion report (Ohio State University. Water Resources Center) ; no. 544
Abstract: In this research project, we tested the hypothesis that siltation in streams eliminates natural reproduction by increasing mortality during embryonic development. We knew that several environmental factors (temperature, dissolved oxygen, and flow rates) affected embryonic development. These factors all change with siltation in streams, but the interaction of these factors with silt needed more experimentation. If we could determine the extent to which silt alone affected embryo mortality, we could design procedures to improve trout reproduction in silted streams. In the first 18 months of our project, we tried to define the critical period of susceptibility of trout embryos to siltation. Our findings were that siltation alone did not influence embryonic development. During the remaining six months of the project we explored the effects of siltation on spawning behavior and initiated a new project to determine the feasibility of selecting trout strains, which would be more tolerant to the marginal conditions in Northeastern Ohio
Other Identifiers: OCLC #11816574 (print)
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