Download or read book An Assessment of Fish Passage Conditions at Stream Crossings Associated with the State Road System on the Seward Peninsula written by David B. Ryland and published by . This book was released on 2008 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: Where roads intersect streams, crossing structures can become barriers to fish passage significantly affecting fish populations by delaying, impeding, or blocking normal movements. Unrestricted movement through stream systems is necessary for anadromous and resident fish species of all age classes and life stages to maintain access to spawning, rearing, and over-wintering habitats, which are essential to maintaining viable populations. Results of stream crossing inventories in the Pacific Northwest and Alaska suggest that a majority of culverts in fish-bearing waters obstruct normal fish movements to varying degrees. The loss of freshwater habitat is often considered a central factor in the decline of wild fish stocks throughout the range of Pacific salmon. This study was undertaken to assess fish passage at stream crossings along state-maintained roads on the Seward Peninsula in northwestern Alaska. Approximately 74 percent of the stream crossings surveyed were categorized as barriers to juvenile fish; an additional 19 percent were categorized as potential barriers. At the majority of the crossings surveyed, culverts were found to constrict the stream channel and be too steep for juvenile fish passage. Steep gradient was the most common factor that contributed to any crossing being categorized as a barrier.

Download or read book Fish Passage at Stream Crossings written by and published by . This book was released on 2009 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Overview Assessment of Fish Passage at Stream Crossings Within Selected Watersheds written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fish passage at stream crossings written by and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fish Passage at Stream Crossings Special Investigation FPB/SIR/25 January 2009 Table of Contents Executive Summary. [...] Habitat Classification Fish Habitat Criteria Upstream of Crossing Site The presence of high-value spawning or rearing habitat (e.g., locations with Critical abundance of suitably sized gravels, deep pools, undercut banks, or stable debris, which are critical to the fish population downstream of the subject crossing). [...] Olsson Tay Creek Burnt Creek Babine Corridor Nichyeskwa Houston Tommy McBride Lamprey 0 25 50 75 100 125 150 Number of Stream Crossings OBS (low likelihood of barrier) CBS - low likelihood of barrier CBS - moderate or high likelihood of barrier Forest Practices Board FPB/SIR/24. [...] Olsson Tay Creek Burnt Creek Babine Corridor Nichyeskwa Houston Tommy McBride Lamprey 0 25 50 75 100 Number of Stream Crossings OBS (low likelihood of barrier) CBS - low likelihood of barrier CBS - moderate or high likelihood of barrier 14 FPB/SIR/25 Forest Practices Board Conversely, on marginal habitat, only 12 percent of crossings had a low likelihood of being a barrier to fish passage ( [...] Olsson Tay Creek Burnt Creek Babine Corridor Nichyeskwa Houston Tommy McBride Lamprey 0 25 50 75 100 Number of Stream Crossings OBS (low likelihood of barrier) CBS - low likelihood of barrier CBS - moderate or high likelihood of barrier Forest Practices Board FPB/SIR/24.

Download or read book Fish Migration and Fish Passage written by Willis A. Evans and published by . This book was released on 1974 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fish Passage in Streams written by Elizabeth Cotterell and published by . This book was released on 1998 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Overview Assessment of Fish Passage at Stream Crossings in the Hardisty Creek Watershed written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fish Passage Guidelines for New and Replacement Stream Crossing Structures written by and published by . This book was released on 2002 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Design for Fish Passage at Roadway stream Crossings written by Rollin H. Hotchkiss and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Cataloging and synthesizing existing methods for the design of roadway-stream crossings for fish passage began in January 2005 with an extensive literature review covering the topics of culvert design and assessment to facilitate fish passage. A survey was posted online to gather input from design professionals across the country, and a Culvert Summit Meeting was held in Denver Colorado from February 15-16, 2006, to allow presentation and discussion of state-of-practice design and assessment techniques. Following the Summit meeting, a Technical Advisory Committee was developed with individuals specifically knowledgeable in the topics of interest. Members were crucial in shaping and reviewing the direction of these guidelines. This document places current culvert design techniques into four categories based on design premise and objectives. These categories include: No Impedance techniques, which span the entire stream channel and floodplain; Geomorphic Simulation techniques, which create fish passage by matching natural channel conditions within the culvert crossing; Hydraulic Simulation techniques, which attempt to closely resemble hydraulic diversity found in the natural channels through the use of natural and oversized substrate; and Hydraulic Design techniques, which may utilize roughness elements such as baffles and weirs to meet species specific fish passage criteria during periods of fish movement. Preliminary chapters covering the topics of fish biology and capabilities, culverts as barriers, fish passage hydrology, and design considerations aid in the selection of appropriate design techniques based on hydraulic, biologic, and geomorphic considerations. A further section presents examples of design techniques fitting the defined design categories. Design examples and case histories for a selection of design techniques are presented next, and are followed by a discussion on construction, maintenance, monitoring, and future research needs.

Download or read book SAFETEA LU Restoration of Fish Passage at Road stream Crossings written by and published by . This book was released on 2011 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Inventory and Assessment of Road stream Crossings for Aquatic Organism Passage with Recommendations for Culvert Design written by Wesley Bouska and published by . This book was released on 2010 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: Improperly designed stream crossings may prohibit movement of stream fishes by creating physical or behavioral barriers and may alter the form and function of stream ecosystems. A mark-recapture and geomorphological study was conducted to evaluate fish passage and stream morphology at three types of vehicle crossings (compared to control sites) located on streams in the Flint Hills of Northeast Kansas. We investigated five concrete box culverts, five low-water crossings (concrete slabs vented by one or multiple culverts), and two single corrugated culverts. A total of 6,433 fish were marked April to May 2007 and 785 were recaptured June to August 2007. Fish passage occurred at all crossing types. Upstream movement of recaptured fish was higher for box culvert reaches (53%) than at controls (41%), but upstream movement of recaptured fish was higher at controls (41.1%) than at crossing reaches (19.1%) for low-water crossings. Control sites had more species in common upstream and downstream than did crossings. There was reduced overall abundance of fish upstream at low-water crossings, commonly percids and centrarchids. A comparison of channel and road crossing dimensions showed that box culverts and corrugated culverts would be more effective than low-water crossings at transporting water, sediments, and debris during bankfull flows, and providing fish passage at base flows. Upstream passage of Topeka shiner (Notropis topeka), green sunfish (Lepomis cyanellus), red shiner (Cyprinella lutrensis), and Southern redbelly dace (Phoxinus erythrogaster) was tested through three simulated crossing designs (box culverts, round corrugated culverts, and natural rock) across 11 different water velocities (0.1 m/s to 1.1 m/s) in an experimental stream. Upstream movement did not differ among designs, except natural rock crossings had lower movement than box or corrugated culverts for red shiners. A greater proportion of Topeka shiners moved upstream at higher velocities. These results suggest that crossing type affects fish passage and the morphology of the stream, although water velocity in different crossing designs alone may not be a determining factor in fish passage. Low-water crossings had the greatest impact on fish community and movement, but barriers to fish movement are likely caused by other variables (e.g. perching). Use of properly designed crossing structures has great promise in conserving critical stream habitat and preserving native fish communities. All crossings that were evaluated passed fish, although they may have passed around culverts during high water. None of the culverts tested appeared to be complete barriers. The design of this study did not allow us to determine the exact times when passage occurred, nor do we understand the degree of passage necessary (i.e., can fish populations be sustained by seasonal fish passage and connectivity?) to maintain a healthy and diverse fish population.

Download or read book Fish Passage at Road Crossings written by Lynette Anderson and published by . This book was released on 1980 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Road Crossing Designs and Their Impact on Fish Assemblages and Geomorphology of Great Plains Streams written by Wesley Wade Bouska and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Improperly designed stream crossings may prohibit movement of stream fishes by creating physical or behavioral barriers and may alter the form and function of stream ecosystems. A mark-recapture and geomorphological study was conducted to evaluate fish passage and stream morphology at three types of vehicle crossings (compared to control sites) located on streams in the Flint Hills of Northeast Kansas. We investigated five concrete box culverts, five low-water crossings (concrete slabs vented by one or multiple culverts), and two single corrugated culverts. A total of 6,433 fish were marked April to May 2007 and 709 were recaptured June to August 2007. Fish passage occurred at all crossing types, but upstream movement of recaptured fish was higher at controls (41.1%) than at crossing reaches (19.1%) for low-water crossings. Control sites had more species in common upstream and downstream than did crossings. There was reduced overall abundance of fish upstream at low-water crossings, commonly percids and centrarchids. A comparison of channel and road crossing dimensions showed that box culverts and corrugated culverts would be more effective than low-water crossings at transporting water, sediments, and debris during bankfull flows, and fish passage at base flows. Upstream passage of Topeka shiner (Notropis topeka), green sunfish (Lepomis cyanellus), red shiner (Cyprinella lutrensis), and Southern redbelly dace (Phoxinus erythrogaster) was tested through three simulated crossing designs (box culverts, round corrugated culverts, and natural rock) across 11 different water velocities (0.1 m/s to 1.1 m/s) in an experimental stream. Upstream movement did not differ among designs, except natural rock crossings had lower movement than box or corrugated culverts for red shiners. A greater proportion of Topeka shiners moved upstream at higher velocities. These results suggest that crossing type affects fish passage and the morphology of the stream, although water velocity in different crossing designs alone may not be a determining factor in fish passage. Low-water crossings had the greatest impact on fish community and movement, but barriers to fish movement are likely caused by other variables (e.g. perching). Use of properly designed crossing structures has great promise in conserving critical stream habitat and preserving native fish communities.

Download or read book Fish stream Crossing Guidebook written by and published by . This book was released on 2011 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fish Passage at Selected Culverts Crossings on the Hoonah District Road System written by Chris Riley and published by . This book was released on 1999 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes the results of a BMP effectiveness monitoring grant study titled: Road Drainage Structure Monitoring of Physical and Biological Characteristics of Fish Passage Through Culverts on Northeast Chichagof Island, Alaska (EPA Grant 104b3). Results from a 1996 Regional Office activity review of Hoonah forest system roads identified the need for additional study on the effects of culvert design and maintenance on upstream fish migration. The objectives of this monitoring project included: 1) Identify physical conditions that impede fish migration at Class I and Class II stream crossings; 2) Sample fish use above and below stream crossings and estimate area of potential habitat loss associated with road related fish migration barriers; and 3) Identify maintenance needs and opportunities for restoring access to fish habitat." -- from the introduction.

Download or read book Fish Passage Improvement in California s Watersheds written by Fish Passage Forum and published by . This book was released on 2005 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fish Passage at UDOT Culverts written by Aaron E. Beavers and published by . This book was released on 2008 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: UDOT is responsible for approximately 47,000 culverts, 5% of which carry live streams. Fish passage is addressed only on an as-needed basis. Currently UDOT has no prioritization or assessment strategy procedure for fish passage at UDOT road-stream crossings. This research will provide UDOT with culvert prioritization and fish passage assessment protocols.