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- Page Title | About the Gulf Ecology Division | US EPA11-23-2009
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- The relative frequency of spawning remained low and there was no indication of spawning rhythmicity; moreover, there was only a slight increase in the mean number of eggs per spawn ...
- USFWS Biological Opinion on Oregon's Water Quality Standards for Temperature01-29-2008
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- Migration into the spawning tributary, spawning, and migration back to the mainstem usually takes one month ... constant thermal environment of Borax Lake, the Borax Lake chub spawns throughout the year, though most spawning occurs in March and April ...
- Mining Ideas: Appendix A - Ecological Project Summaries06-17-2009
- "These are summaries of the ecological projects funded by GLNPO in this document."
- Page Title | About the Gulf Ecology Division | US EPA11-23-2009
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- The relative frequency of spawning remained low and there was no indication of spawning rhythmicity; moreover, there was only a slight increase in the mean number of eggs per spawn ...
- Page Title | About the Gulf Ecology Division | US EPA11-23-2009
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- The relative frequency of spawning remained low and there was no indication of spawning rhythmicity; moreover, there was only a slight increase in the mean number of eggs per spawn ...
- Lake Sturgeon Population | Indicators | LLRS | EPA08-26-2009
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- From 1970s to 1999 no lake sturgeon spawning was reported in the Detroit River which, at one time, was one of the most productive sturgeon spawning grounds in the United States ...
- South Fork of the Salmon River, Idaho, Restoration | Polluted Runoff (Nonpoint Source Pollution) | US EPA01-13-2010
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- ... valued as a source of Chinook salmon and steelhead trout spawning and rearing habitat... Reductions of sediment loadings from these sources should improve salmonid spawning habitat.
- Regional Geographic Initiative Stories07-27-2009
- "This report showcases ten of the various projects completed or underway in the 10 EPA regions during 1998."
- Environmental Websites Search| US EPA02-08-2010
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- Waters where anadromous fish spawning occurs are particularly important to the State's fishery resources, and the success of spawning is critical far beyond the immediate area where reproduction occurs ...
- Environmental Websites Search| US EPA02-04-2010
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- Waters where anadromous fish spawning occurs are particularly important to the State's fishery resources, and the success of spawning is critical far beyond the immediate area where reproduction occurs ...