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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Improving instream flow protection in the West : an evaluation of strategies with an analysis of Oregon's program /

Root, Ann L. January 1993 (has links)
Thesis (Ph. D.)--Oregon State University, 1993. / Typescript (photocopy). Includes bibliographical references (leaves 155-173). Also available via the World Wide Web.
2

Influence of fluvial geomorphology on fish assemblage structure within an agriculturally impacted watershed /

Fore, Jeffrey D., January 2008 (has links) (PDF)
Thesis (M.S.)--Eastern Illinois University, 2008. / Includes bibliographical references (leaves 25-30).
3

An analysis of the costs involved in making a stream pollution survey /

Jones, David Albert, January 1955 (has links)
Thesis (M.S.)--Virginia Polytechnic Institute, 1955. / Vita. Includes bibliographical references (leaves 35-37). Also available via the Internet.
4

Developing eligibility criteria for daylighting streams as applied to Dallas' Mill Creek

Koshaley, Deepa Harkishore. January 2008 (has links)
Thesis (M.L.A) -- University of Texas at Arlington, 2008.
5

A comparison of the ecological integrity of headwater streams draining harvested and un-harvested watersheds in the western mountains of Maine, U.S.A. /

Siegel, Darlene. January 2003 (has links) (PDF)
Thesis (M.S.) in Ecology and Environmental Science--University of Maine, 2003. / Includes vita. Includes bibliographical references (leaves 64-69).
6

Effects of stream restoration on macroinvertebrate communities in an Oregon Coast Range system

Christensen, M. Jo 09 February 1996 (has links)
Stream-restoration projects are usually designed to improve habitat quality for fishes. These projects manipulate flow patterns, substrate distribution, and amount and placement of large woody debris. Consequently, they also affect the size and composition of the aquatic macroinvertebrate community. This research evaluates two types of fish habitat restoration: off-channel structures (alcoves) and in-channel structures (log weirs). I compared macroinvertebrate habitats and communities in natural and artificial alcoves in Upper and South Fork Lobster Creeks, Lane Co., and examined the effects of log weirs on in-channel habitat diversity, community composition, drift patterns, and fish consumption of macroinvertebrates. Macroinvertebrate samples were collected from artificial and natural alcoves using hand pumps and D-nets. Within the channel, macroinvertebrates were collected from restored and unrestored reaches with a Hess sampler and using a stratified random sampling scheme. Forty-eight hour invertebrate drift samples were obtained at outlets of log-weir pools. Stomach contents were obtained from coho salmon (Oncorhynchus kisutch) and cutthroat trout (O. clarki) in restored reaches. Although natural alcoves differed from artificial in location within the floodplain, morphology, permanence, and degree of interaction with the stream channel, both alcovetypes provided similar habitats and contained similar macroinvertebrate communities. Average densities and diversity within the alcoves depended on habitat and time of year. Average densities were higher in artificial than in natural. Alcoves contained 29% of species richness within Upper Lobster Creek. Within the stream channel, the diversity of macroinvertebrate habitat was lower in restored than in unrestored sections. Log weirs were associated with reduced taxonomic and functional feeding-group diversity. Composition of drift was not significantly different in restored and unrestored areas; however, drift densities were significantly lower in restored reaches. Diets of fishes in restored areas were composed primarily of organisms produced from outside restored areas. Although in-channel structures may enhance physical habitat for fishes, they may alter or reduce the availability of food for fishes feeding on drifting invertebrates. Recommendations are given for improving the design of stream restoration projects with respect to macroinvertebrates; however stream restoration should focus on restoring whole-system integrity and function, instead of targeting just one or two types of organisms. / Graduation date: 1996
7

Post-treatment erosion of decommissioned forest road stream crossings /

Wilson, Sarah Elisabeth. January 1900 (has links)
Thesis (M.S.)--Humboldt State University, 2008. / Includes bibliographical references (leaves 45-47). Also available via Humboldt Digital Scholar.
8

Wilderness rivers : environmentalism, the wilderness movement, and river preservation during the 1960s /

Empfield, Jeffrey Morgan. January 1994 (has links)
Thesis (M.A.)--Virginia Polytechnic Institute and State University, 1994. / Vita. Abstract. Includes bibliographical references (leaves 191-198). Also available via the Internet.
9

Using geographic information systems to develop and analyze land use policies /

Gillfillan, Abigail. January 2008 (has links)
Thesis (M. P. A.)--Texas State University-San Marcos, 2008. / "Spring 2008." Includes bibliographical references (leaves 85-87).
10

Homeowner's handbook to protecting Puget Sound streams

Tangen, Jan G. January 1900 (has links) (PDF)
Thesis (M.E.S.)--Evergreen State College, 2008. / "June, 2008." Title from title screen (viewed 5/20/2010). Includes bibliographical references (p. 33-36).

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