DOCSLIB.ORG

United States Department of the Interior

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
United States Department of the Interior United States Department of the Interior FISH AND WILDLIFE SERVICE Colorado Ecological Services IN REPLY REFER TO: Front Range: Western Slope: l'WS/R6/ES CO Post Office Box 25486 445 W. Gunnison Avenue Mail Stop 65412 Suite 240 Denver, Colorado 80225-0486 Grand Junction, Colorado 8150 I -5711 ES/GJ-6-CO-08-F-0006 TAILS 65413-2008-F-0073-R00l December 26, 2017 Memorandum To: Deputy State Director, Bureau of Land Management, Colorado State Office, Resources and Fire, Lakewood, Colorado , \ ,,~~ From: Western Slope Supervisor, Fish and Wildlife Service, Ecological Services, Grand Junction, Colorado Subject: Programmatic Biological Opinion for Water Depletions Associated with Bureau of Land Management's Fluid Mineral Program within the Upper Colorado River Basin in Colorado. In accordance with section 7 of the Endangered Species Act (ESA) of 1973, as amended (16 U.S.C. 1531 et seq.), and the Interagency Cooperation Regulations (50 CFR 402), this transmits the U.S. Fish and Wildlife Service's (Service) final programmatic biological opinion (PBO) for impacts to four endangered Colorado River fish species (Colorado pikeminnow (Ptychocheilus lucius), razorback sucker (Xyrauchen texanus), bonytail chub (Gila elegans), and humpback chub (Gila cypha)) and their critical habitats from water depletions associated with Bureau of Land Managements's (BLM) Fluid Mineral Program (project) authorized by BLM within the Upper Colorado River Basin in Colorado. This PBO is a reinitiation of consultation on this project completed on December 19, 2008 (ES/GJ-6-CO-08-F-0006, TAILS65413-2008-F-0073), and is in response to your May 31, 2017, request for reinitiation of consultation, which included the May 26, 2017, programmatic biological assessment (2017 PBA) for the project. This PBO also supersedes and replaces our 2008 opinion for this project. Oil and gas activities typically require the use of various amounts of water. This consultation only addresses the effects of water depletions and withdrawals on the endangered Colorado River fishes and their critical habitats and does not include other direct or indirect impacts that may be associated with oil and gas activities. For example, effects resulting from a project that involve the release of contaminants, or non-depletion-related impacts to fish habitat, are not covered under this PBO. The location and timing of such activities would be important to an analysis of their effects and is unknown at this time; future, separate section 7 consultation would be required for such projects. Table of Contents Consultation History ................................................................................................................... 3 BIOLOGICAL OPINION ............................................................................................................... 6 Description of the Proposed Action ............................................................................................ 6 Conservation Measures ............................................................................................................... 9 Status of the Species and Critical Habitat ................................................................................. 11 Colorado Pikeminnow .......................................................................................................... 11 Razorback Sucker ................................................................................................................. 22 Humpback Chub ................................................................................................................... 29 Bonytail ................................................................................................................................. 34 Critical Habitat ...................................................................................................................... 36 Climate Change ..................................................................................................................... 38 Environmental Baseline ............................................................................................................ 39 Colorado pikeminnow ........................................................................................................... 40 Razorback sucker .................................................................................................................. 43 Humpback chub .................................................................................................................... 45 Bonytail ................................................................................................................................. 45 Climate Change in the Action Area ...................................................................................... 46 Flow Recommendations............................................................................................................ 47 Yampa River ......................................................................................................................... 47 Colorado River ...................................................................................................................... 48 Gunnison River ..................................................................................................................... 51 White River ........................................................................................................................... 51 Effects of the Action ................................................................................................................. 52 Effects to Critical Habitat ..................................................................................................... 53 Species and Critical Habitat Response to the Proposed Action ............................................ 55 Cumulative Effects.................................................................................................................... 65 Conclusion ................................................................................................................................ 66 INCIDENTAL TAKE STATEMENT .......................................................................................... 68 MONITORING AND REPORTING ............................................................................................ 69 CONSERVATION RECOMMENDATIONS .............................................................................. 69 REINITIATION NOTICE ............................................................................................................ 70 LITERATURE CITED ................................................................................................................. 73 2 Consultation History Implementation of the Endangered Species Act in the Upper Colorado River Basin started with section 7 consultation on Bureau of Reclamation (Reclamation) projects in the late 1970’s. At that time, the Service determined that the Colorado pikeminnow and humpback chub were in danger of extinction (the bonytail was listed in 1980 and the razorback sucker was listed in 1991). Subsequently, section 2 (c) of the Act was amended as follows: It is further declared to be the policy of Congress that Federal agencies shall cooperate with State and local agencies to resolve water resource issues in concert with conservation of endangered species. In 1984, the Department of the Interior (DOI), Colorado, Wyoming, Utah, water users, and environmental groups formed a coordinating committee to discuss a process to recover the endangered fishes while new and existing water development proceeds in the Upper Colorado River Basin in compliance with Federal and State law and interstate compacts. After four years of negotiations, the Recovery Implementation Program for the Endangered Fish Species in the Upper Colorado River Basin was developed. On January 21-22, 1988, the Secretary of the Interior; Governors of Wyoming, Colorado, and Utah; and the Administrator of the Western Area Power Administration (WAPA) cosigned a Cooperative Agreement to implement the Recovery Implementation Program (Recovery Program) for Endangered Fish Species in the Upper Colorado River Basin (Service 1987). Current participants in the Recovery Program include: the Service, Reclamation, Western Area Power Administration, Colorado, Utah, Wyoming, Environmental Defense Fund, The Nature Conservancy, Colorado Water Congress, Utah Water Users Association, Wyoming Water Development Association, and the Colorado River Energy Distributors Association. In 2009, the Cooperative Agreement was extended through September 30, 2023 (Recovery Program 2009). The Recovery Program was intended to be the reasonable and prudent alternative to avoid jeopardy to the endangered fishes by depletions from the Upper Colorado River Basin. The goal of the Recovery Program is to recover the listed species while providing for new and existing water development in the Upper Colorado River Basin. All participants agreed to cooperatively work toward the successful implementation of a recovery program that will provide for recovery of the endangered fish species consistent with Federal law and all applicable State laws and systems for water resource development and use. Each signatory assumed certain responsibilities in implementing the Recovery Program. In order to further define and clarify the process in the Recovery Program, a section 7 agreement was implemented on October 15, 1993, by the
Load more

Recommended publications
  • Historical Information H.4 Pre-Event Reports Book 1 Project Rulison: Pre
    Historical Information H.4 Pre-Event Reports Book 1 Project Rulison: Pre-Shot Predictions of Structural Effects HPR .2 DISCLAIMER Portions of this document may be illegible in electronic image products. Images are produced from the best available original document. PROJECT RULISON: Pre - Shot Predictions of Structural Effects John A. -~lume& Associates Research Division San ~rancisco,California March 1969 Prepared under Contract AT(26-1)-99 for the Nevada Operations Office, USAEC This page intentionally left blank PROJECT RULISON: PRE-SHOT PREDICTIONS OF STRUCTURAL EFFECTS CONTENTS -Page ABSTRACT ......................../'. .... i i I SUMMARY ............................ v INTRODUCTION.......................... 1 SEISMICITY ........................... 2 STRUCTURAL HAZARD EVALUATION .................. 3 EARTH STRUCTURAL HAZARDS .................... 11 HYDRAULIC STRUCTURE AND WATER SUPPLY HAZARDS .......... 17 SAFETY PRECAUTIONS AND EVACUATION RECOMt4ENDATIONS ....... 22 DAMAGE COST PREDICTIONS .................... 24 CONDITION SURVEYS ....................... 26 MAP (In pocket inside back cover) This page intentionally left blank . ~ ABSTRACT This report includes results of pre-RULISON structural response investigations and a preliminary evaluation of hazards associated with ground motion effects on buildings, reservoirs, and earth structures. Total damage repair costs from an engineering judg- ment prediction are provided. Spectral Matrix Method calcula- tions are now in progress. Also included are general safety recommendations. A summary of predictions follows: Structural Response Damaging motions are probable in the region inside 25 kilometers. Structural hazards exist in Grand Valley, at the Anvil Points Research Station, and at various small ranches out to a distance of 14 ki lometers from Ground Zero (GZ) . The area is much more densely populated than would appear from initial project informa- tion. Earth Structure Hazards Rockfall and hazards to slope stability create major problems.
    [Show full text]
  • Roundtail Chub (Gila Robusta Robusta): a Technical Conservation Assessment
    Roundtail Chub (Gila robusta robusta): A Technical Conservation Assessment Prepared for the USDA Forest Service, Rocky Mountain Region, Species Conservation Project May 3, 2005 David E. Rees, Jonathan A. Ptacek, and William J. Miller Miller Ecological Consultants, Inc. 1113 Stoney Hill Drive, Suite A Fort Collins, Colorado 80525-1275 Peer Review Administered by American Fisheries Society Rees, D.E., J.A. Ptacek, and W.J. Miller. (2005, May 3). Roundtail Chub (Gila robusta robusta): a technical conservation assessment. [Online]. USDA Forest Service, Rocky Mountain Region. Available: http:// www.fs.fed.us/r2/projects/scp/assessments/roundtailchub.pdf [date of access]. ACKNOWLEDGMENTS We would like to thank those people who promoted, assisted, and supported this species assessment for the Region 2 USDA Forest Service. Ryan Carr and Kellie Richardson conducted preliminary literature reviews and were valuable in the determination of important or usable literature. Laura Hillger provided assistance with report preparation and dissemination. Numerous individuals from Region 2 national forests were willing to discuss the status and management of this species. Thanks go to Greg Eaglin (Medicine Bow National Forest), Dave Gerhardt (San Juan National Forest), Kathy Foster (Routt National Forest), Clay Spease and Chris James (Grand Mesa, Uncompahgre, and Gunnison National Forest), Christine Hirsch (White River National Forest), as well as Gary Patton and Joy Bartlett from the Regional Office. Dan Brauh, Lory Martin, Tom Nesler, Kevin Rogers, and Allen Zincush, all of the Colorado Division of Wildlife, provided information on species distribution, management, and current regulations. AUTHORS’ BIOGRAPHIES David E. Rees studied fishery biology, aquatic ecology, and ecotoxicology at Colorado State University where he received his B.S.
    [Show full text]
  • • UNITED STATES DEPARTMENT of the INTERIOR Fish and Wildlife
    •UNITED STATES DEPARTMENT OF THE INTERIOR Fish and Wildlife Service Bureau of Sport Fisheries and Wildlife Division of Fishery Services Phoenix, Arizona Progress Report • FISHERY MANAGEMENT PROGRAM Black and Salt Rivers Ft. Apache and San Carlos Apache Indian ,Reservations Arizona January 21, 1966 February 3, 1966 Initial Report Black and Salt Rivers Ft. Apache and San Carlos Apache Indian Reservations Arizona Introduction During the past several years, the Bureau of Sport'Fisheries'and Wildlife, in cooperation with the Bureau of Indian Affairs, has-intensified its fishery managementi assistance to the Ft. Apache and San Carlos Indian Reservations. During this period many reports summarizing fishery management activities have been submitted. None, however, has dealt with the important Black and Salt Rivers or their fishery potential. This report summarizes the- results of preliminary fishery investigations on the Salt and Black Rivers, including fishery potentials, and Is directed to the Tribal organization and•agencies of the San Carlos and Ft.-Apache Indian Reservations. The Black and Salt Rivers of Arizona flow through some of the most- spectacular canyons of the Southwest. The Salt River Canyon crossing at Highway 60 is often referred to as.the second-Grand Canyon of Arizona, with vividly colored canyon walls rising vertically more than 3,000. feet. The Black River follows a major - - - rift through basalt rock that is often narrow and exceeds 26000 feet in depth in many places. Canyons, alternately widening and boxing, extending from alpine to upper sonorian life zones, are characteristic of the study area Stands of virgin . spruce and ponderosa pine lend beauty to the.
    [Show full text]
  • Operation of Flaming Gorge Dam Final Environmental Impact Statement
    Record of Decision Operation of Flaming Gorge Dam Final Environmental Impact Statement I. Summary of Action and Background The Bureau of Reclamation (Reclamation) has completed a final environmental impact statement (EIS) on the operation of Flaming Gorge Dam. The EIS describes the potential effects of modifying the operation of Flaming Gorge Dam to assist in the recovery of four endangered fish, and their critical habitat, downstream from the dam. The four endangered fish species are Colorado pikeminnow (Ptychocheilus lucius), humpback chub (Gila cypha), razorback sucker (Xyrauchen texanus), and bonytail (Gila elegans). Reclamation would implement the proposed action by modifying the operations of Flaming Gorge Dam, to the extent possible, to achieve the flows and temperatures recommended by participants of the Upper Colorado River Endangered Fish Recovery Program (Recovery Program). Reclamation’s goal is to implement the proposed action and, at the same time, maintain and continue all authorized purposes of the Colorado River Storage Project. The purpose of the proposed action is to operate Flaming Gorge Dam to protect and assist in recovery of the populations and designated critical habitat of the four endangered fishes, while maintaining all authorized purposes of the Flaming Gorge Unit of the Colorado River Storage Project (CRSP), including those related to the development of water resources in accordance with the Colorado River Compact. As the Federal agency responsible for the operation of Flaming Gorge Dam, Reclamation was the lead agency in preparing the EIS. Eight cooperating agencies also participated in preparing this EIS: the Bureau of Indian Affairs (BIA), Bureau of Land Management, National Park Service, State of Utah Department of Natural Resources, U.S.
    [Show full text]
  • Population Status of Humpback Chub, Gila Cypha, and Catch
    Population Status of Humpback Chub, Gila cypha, and Catch Indices and Population Structure of Sympatric Roundtail Chub, Gila robusta, in Black Rocks, Colorado River, Colorado, 1998- 2012 Picture 1. Humpback chub on grid board (2012). Photo credit: T. Francis, USFWS. Upper Colorado River Endangered Fish Recovery Program Project Number 131 (22a3) Final Report April, 2016 Travis A. Francis U.S. Fish and Wildlife Service Colorado River Fishery Project 445 West Gunnison Avenue, Suite 140 Grand Junction, Colorado 81501 -and- Dr. Kevin R. Bestgen Dr. Gary C. White Colorado State University Larval Fish Laboratory Fort Collins, Colorado 80523 i Suggested Citation: Francis, T.A., K.R. Bestgen, and G.C. White. 2016. Population status of humpback chub, Gila cypha, and catch indices and population structure of sympatric roundtail chub, Gila robusta, in Black Rocks, Colorado River, Colorado, 1998-2012. Larval Fish Laboratory Contribution 199. Final Report from the U.S. Fish and Wildlife Service to the Upper Colorado River Endangered Fish Recovery Program, Project Number 131. Grand Junction, Colorado. ii Table of Contents ACKNOWLEDGEMENTS ......................................................................................................................... vi EXECUTIVE SUMMARY .......................................................................................................................... vii INTRODUCTION .....................................................................................................................................
    [Show full text]
  • Arizona Historic Bridge Inventory
    STATE OF ARIZONA HISTORIC PROF€RlY INVENTORY FORM Salt River Bridge PROPERTY IENTlRCAllON county Gila Inventory nmbu W037 milepost 262.44 inventory route SR 288 locadon 04.3 M N Jct SR 88 featwe lhsoctad Salt River citylvimnity Rooaevelt USOS quadrangle Salt River Peak disk id 83 UTM rmferma 12.507250.3719952 STRUCTURAL INFORMATION main span number 1 main rpan type 310 appr. rpan number 0 appr. type degreeof rkw 0 guardrail type 6 main span length 215.0 swstructure steel rigid-conneded Parker through truaa struave length 220.0 subatrwhre concrete abutments and wingwah on spread footlngs roadway width 18.2 fioor/docking concrwte deck over steel atringen, structuo width 19.3 othu features lower chord: 2 channels w/ double ladna; umer chord: 2 channels w/ cover plate and do-&&dng; vertlcd 2 channela wlth king: diagonal: 2 channels or 2 angles w/ Menplates; floor beam: I-beam: steel pipe gwdds' HISTORICPL INORMATION eonstruaion date 1920 deslgnsr/enginssr US Bureau of Public Rwds project number FHP 12-E builder/mntraaor information sour- ADOT brldge records structve owm Arlzona DepmZrnent of Transportation alteradon datda) alteradom NATlONA REGISTER EVAUATION For add'hnal infwrnation, sw "Vehicular Bridges in Pvirona 1880-1964" Nadonal Reglstw Multiple Propwly Documentation Form NRHP digibility bted MIHPaHwla A x 6- C~ signif. statement longest and oldest riveted through twsin Arizona FORM COMRmD BY Clayton B. Fraesr, Prhdpal FRASERdeslgn 420 South County Road 23E Loveland, Colodo 80537 31 Oaober 2004 SALT RIVER BRIDGE PHOTO INFORMPTlON dw of phom.: November 2002 vkw && south east ~na:02.11.287 02.11.288 32 1 FRASERDESIQN SALT RIVER BRIDGE CONSTRUCTION HISTORY In 1918 the newly formed U.S.
    [Show full text]
  • PCA) Report Name Colorado River Site Code S.USCOHP*15679
    Level 4 Potential Conservation Area (PCA) Report Name Colorado River Site Code S.USCOHP*15679 IDENTIFIERS Site ID 1328 Site Class PCA Site Alias Colorado River Megasite Network of Conservation Areas (NCA) NCA Site ID NCA Site Code NCA Site Name - No Data County Garfield (CO) Grand (UT) Mesa (CO) SITE DESCRIPTION Site Description This site includes the stretch of the Colorado River that extends from Rifle to the Utah border. The Colorado River riparian corridor is the most heavily developed area in Mesa County. The floodplains near the river were historically dominated by stands of Rio Grande cottonwood (Populus deltoides ssp. wislizeni) with an understory of skunkbrush (Rhus trilobata). However, development of the floodplain, agriculture, and most notably, the invasion of non-native species such as tamarisk ( Tamarix ramosissima), Russian olive (Elaeagnus angustifolia), and Russian knapweed (Acroptilon repens) have greatly reduced the amount of native riparian vegetation within this site. Extensive gravel mining operations in the river floodplain up and downstream of the City of Rifle has included the removal of cottonwood gallery forests and commensurate riparian and stream values that these forests provide. Along the immediate banks of the river and around wetlands in the floodplain, coyote willow (Salix exigua), cocklebur (Xanthium strumarium), barnyard grass (Echinochloa crus-galli), reedcanary grass (Phalaris arundinacea), common reed (Phragmites australis), cattail (Typha latifolia), hardstem bulrush (Schoenoplectus acutus), threesquare bulrush (S. pungens), alkali bulrush (S. maritimus), and redroot flatsedge (Cyperus erythrorhizos) are typically dominant. This site provides critically important habitat for endangered fish such as the razorback sucker ( Xyrauchen texanus), Colorado pikeminnow (Ptychocheilus lucius), and humpback chub (Gila cypha).
    [Show full text]
  • PRELIMINARY REPORT of INVESTIGATIONS of SPRINGS in the MOGOLLON RIM REGION, ARIZONA By
    United States Department of the Interior Geological Survey PRELIMINARY REPORT OF INVESTIGATIONS OF SPRINGS IN THE MOGOLLON RIM REGION, ARIZONA By J. H. Feth With sections on: Base flow of streams By N. D. White and Quality of water By J. D. Hem Open-file report. Not reviewed for conformance with editorial standards of the Geological Survey. Tucson, Arizona June 1954 CONTENTS Page Abstract ................................................... 1 Introduction................................................. 3 Purpose and scope of investigation.......................... 3 Location and extent of area ................................ 4 Previous investigations.................................... 5 Personnel and acknowledgments ............................ 5 Geography .................................................. 6 Land forms and physiographic history ...................... 6 Drainage ................................................ 6 Climate ................................................. 6 Development and industry.................................. 8 Minerals"................................................. 9 Water ................................................... 9 Geology .................................................... 10 Stratigraphy ............................................. 10 Rocks of pre-Mesozoic age ............................. 10 Upper Cretaceous sedimentary rocks .................... 10 Tertiary and Quaternary sedimentary rocks .............. 11 Lake beds .......................................... 11 San Carlos basin
    [Show full text]
  • ECOLOGY of NORTH AMERICAN FRESHWATER FISHES
    ECOLOGY of NORTH AMERICAN FRESHWATER FISHES Tables STEPHEN T. ROSS University of California Press Berkeley Los Angeles London © 2013 by The Regents of the University of California ISBN 978-0-520-24945-5 uucp-ross-book-color.indbcp-ross-book-color.indb 1 44/5/13/5/13 88:34:34 AAMM uucp-ross-book-color.indbcp-ross-book-color.indb 2 44/5/13/5/13 88:34:34 AAMM TABLE 1.1 Families Composing 95% of North American Freshwater Fish Species Ranked by the Number of Native Species Number Cumulative Family of species percent Cyprinidae 297 28 Percidae 186 45 Catostomidae 71 51 Poeciliidae 69 58 Ictaluridae 46 62 Goodeidae 45 66 Atherinopsidae 39 70 Salmonidae 38 74 Cyprinodontidae 35 77 Fundulidae 34 80 Centrarchidae 31 83 Cottidae 30 86 Petromyzontidae 21 88 Cichlidae 16 89 Clupeidae 10 90 Eleotridae 10 91 Acipenseridae 8 92 Osmeridae 6 92 Elassomatidae 6 93 Gobiidae 6 93 Amblyopsidae 6 94 Pimelodidae 6 94 Gasterosteidae 5 95 source: Compiled primarily from Mayden (1992), Nelson et al. (2004), and Miller and Norris (2005). uucp-ross-book-color.indbcp-ross-book-color.indb 3 44/5/13/5/13 88:34:34 AAMM TABLE 3.1 Biogeographic Relationships of Species from a Sample of Fishes from the Ouachita River, Arkansas, at the Confl uence with the Little Missouri River (Ross, pers. observ.) Origin/ Pre- Pleistocene Taxa distribution Source Highland Stoneroller, Campostoma spadiceum 2 Mayden 1987a; Blum et al. 2008; Cashner et al. 2010 Blacktail Shiner, Cyprinella venusta 3 Mayden 1987a Steelcolor Shiner, Cyprinella whipplei 1 Mayden 1987a Redfi n Shiner, Lythrurus umbratilis 4 Mayden 1987a Bigeye Shiner, Notropis boops 1 Wiley and Mayden 1985; Mayden 1987a Bullhead Minnow, Pimephales vigilax 4 Mayden 1987a Mountain Madtom, Noturus eleutherus 2a Mayden 1985, 1987a Creole Darter, Etheostoma collettei 2a Mayden 1985 Orangebelly Darter, Etheostoma radiosum 2a Page 1983; Mayden 1985, 1987a Speckled Darter, Etheostoma stigmaeum 3 Page 1983; Simon 1997 Redspot Darter, Etheostoma artesiae 3 Mayden 1985; Piller et al.
    [Show full text]
  • DRAFT Bonytail Chub (Pimephales Promelas ) Thermal Tolerance Analyses – Juvenile and Adult, Summer March 2016
    DRAFT Bonytail Chub (Pimephales promelas ) Thermal Tolerance Analyses – Juvenile and Adult, Summer March 2016 Introduction Recommended summer chronic and acute thermal tolerance values for juvenile and adult bonytail chub and their justification are discussed below. The recommended tolerance values were developed in accordance with the “ DRAFT Methodology for Developing Thermal Tolerance Thresholds for Various Fish in Nevada – Juvenile and Adult, Summer ” (September 2015). Chronic Thermal Tolerance Thresholds Table 1 provides a summary of the range of chronic temperature tolerance values for bonytail chub for various lines of evidence. These values are based upon a review of 2 papers and publications, the details of which are summarized in Attachment A. There is obviously a wide range of temperatures from which to select an appropriate value and best professional judgment is called for. NDEP’s approach is to accept the EPA recommendations from Brungs and Jones (1977) unless the literature review provides a compelling reason to utilize other values. However, in the case of the bonytail chub, EPA has not recommended a chronic thermal tolerance value. As discussed in the methodology, chronic temperature criteria are generally not set to ensure the most optimum conditions. In fact, Brungs and Jones (1977) recommends chronic criterion for a given fish species that is between the optimum temperature and the UUILT. Based upon the available data, the recommended chronic threshold for bonytail chub is 29°C. This value is consistent with the upper
    [Show full text]
  • Razorback Suckers Are Making a Comeback in the Upper Colorado River Basin
    Winter 13 Razorback suckers are making a comeback in the upper Colorado River basin iologists are thrilled that the recovery programs’ stocking Hatchery programs have been very successful. In the upper efforts are bearing fruit and razorback suckers are becom- basin, razorback suckers are being raised by the Ouray National Bing more numerous throughout the upper Colorado River Fish Hatchery, Randlett and Grand Valley units near Vernal, Utah basin. “We catch so many razorbacks these days; it takes us lon- and Grand Junction, Colorado. Following analysis of razorback ger to complete our Colorado pikeminnow sampling trips,” says sucker stocking and survival by Colorado State University’s Larval U. S. Fish and Wildlife Service (USFWS) researcher Travis Francis. Fish Lab, the Recovery Program increased the size of razorback Historically, the razorback sucker occurred throughout warm- sucker for stocking from an average of about 11 inches to about 14 water reaches of the Colorado River Basin from Mexico to Wyoming. PHOTOGRAPH COURTESY UDWR-MOAB inches and is stocking the fish in the fall when fish survive better. When this species was listed in 1991, its numbers were much reduced To increase growth, the Program raises the fish in a combination and biologists were worried it might become extinct. Thanks to of outdoor ponds during warmer months and indoor tanks in the the efforts of the San Juan River Basin Recovery Implementation winter. Program and the Upper Colorado River Endangered Fish Recovery This past summer, many wild-spawned razorback larvae drift- Program, these fish are making a real comeback today. Hatchery- ed from a middle Green River spawning bar into the Stewart Lake produced fish are being stocked to re-establish the species in the JUVENILE RAZORBACK SUCKER, MAY, 2013 wetland about 11 miles downstream.
    [Show full text]
  • Arizona Historic Bridge Inventory | Pages 164-191
    NPS Form 10-900-a OMB Approval No. 1024-0018 (8-86) United States Department of the Interior National Park Service National Register of Historic Places Continuation Sheet section number G, H page 156 V E H I C U L A R B R I D G E S I N A R I Z O N A Geographic Data: State of Arizona Summary of Identification and Evaluation Methods The Arizona Historic Bridge Inventory, which forms the basis for this Multiple Property Documentation Form [MPDF], is a sequel to an earlier study completed in 1987. The original study employed 1945 as a cut-off date. This study inventories and evaluates all of the pre-1964 vehicular bridges and grade separations currently maintained in ADOT’s Structure Inventory and Appraisal [SI&A] listing. It includes all structures of all struc- tural types in current use on the state, county and city road systems. Additionally it includes bridges on selected federal lands (e.g., National Forests, Davis-Monthan Air Force Base) that have been included in the SI&A list. Generally not included are railroad bridges other than highway underpasses; structures maintained by federal agencies (e.g., National Park Service) other than those included in the SI&A; structures in private ownership; and structures that have been dismantled or permanently closed to vehicular traffic. There are exceptions to this, however, and several abandoned and/or privately owned structures of particular impor- tance have been included at the discretion of the consultant. The bridges included in this Inventory have not been evaluated as parts of larger road structures or historic highway districts, although they are clearly integral parts of larger highway resources.
    [Show full text]