DOCSLIB.ORG

Conservation Status of Threatened Fishes in Waknek Basin, Oregon

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Conservation Status of Threatened Fishes in Waknek Basin, Oregon CONSERVATION STATUS OF THREATENED FISHES IN WAKNEK BASIN, OREGON ABSTHALT- Twoledcndy listed Gshrs. ilre FuAett rpecklrd claw awl Wmwwcke!~, are edemir.tu Wnrnrr Bmin in mnrh central Orcgm lhr lhrkctt rpr:ckk:d dace isnrrtivc only trr a rincle springin Culcrnm Valley. Ancarhypring vns docked wfth dore io l97$)and 1~~0,rod tnnwpmvider orrcnnd pnp~~latinn.'lhr pmrcntntmhwr ddaw y~olixhly turn d tlrcir higl~rstlevels since ~ettlemc~tiultlar rcgiuw l%rWarner swkrr hirlndrdly nm,>rretlillruughuat rrludl uf the Wnmm- Valk:", hut its dirtrihntim and alnmdanco travc lxcn rcduucd by cunrlruutius uf n:rr:rvril-s and in-iwtinn dams tmd tlw intruductiun uf predatury ganw Cisl~rs.Lmtir. liabilatr lwr lietomp rlomiualad Ly istrduccd Gsl~es. pa~,tinrlavlywhite cnppir, hlrck crappir, and hmwn hnllhaad. Thc largcrt rcmainirlg rxrpulstinn nlWwwv wckcl-r rmrsin Ilart Lukc. whcru aucccsdul repruductior~was document4 Lel rbere is no evidence ulmcruite~cnttu the adult population. Two tlircatened tishes inhahit separate val- 13mp (-- Warner) Cheek near Adel. The leys in War~~crBasin, Orcgorl. In Colc~iia~~Warner sucker WAX listed threatened pri- V;iIIey the only native fish is the 1"oskett marily het:ause of fragmentation of stream speckled I,Hhinichthys o.sctrlu.s ssp., Irat>iti~tsby irrigntioridiversion dams md the which ocmirs in Fnskett Spring along the west cs~allish~~lcr~loc largc pupuliitions of intnj- margin of the (:olem;m like hed. The lake is rlirrd piscivoroms fishes in lcntic habitats dry cxccpt d~iringycan orexceptional rainfall. (LS. Fish mc1 Wildlife Sewice 19M5b). Tl~rdacc was listed as Lllrcatcr~cdbccausc of Long-time residents recalled that dnring small popdatim size, tmrrqllirrg of its rc- the i(330~large nulnt)ers ofspawning W;lrner strictcd habitat bv cattle. and subseanent s~a:kers(referred to as "redhorse") ascended degradation of the springpool arna (U.S. Fish Honey Crcck Car into upsirca~r~canyon areas and Wildlice Seervicc ].!Ma). (Alldmasen 1975). Ry the 1970s lhc spccics range was fi.agmented hy liunlcrous irriga- To provide a reii~ge population tree of tion diversion dams on the lower rcaclics of tlic clXects of intense livestock grazing, SO streams trih~ltmyto Pelican. (:rump, and dacc Gonl Foskctt Spring were transplanter1 llart lakes (Andrcascn 1975, Kohetich 1'377, on Novcmbcr 1879 into arl u~r~larncdspri~lg I4 Swcnscn 1978, Coonibs et al. 1979, IKayes (now k11ow11 as "Dace Spring") 011 Bureau or 1980), wliicli block spawriing runs fro111 Lhc Iimd Management (IILM) lard appnrxi- lakcs into streams. mately 1 .,5 kin srmth of Frrskett Spring. An- Coombs et al. (1979) f01111d that altliongh otller 50 dacc wcrc transkrrcdinto the spring habitats had been tiagnientcd resident stream on 26 Au~qtnt1980. A raprodwing pop~~l;itirmpopulalions still persisted. Nedy two-thirds sul~squc~dycsiablishcd in Dace Spriug, ad of all adult swkcrs (1.98 of ,300) wert. captured rrlore than 300 dacc of thrcc si~cclasses wcrc by Coombs et al. (1979) in tlic cadLctwcc~l ohserved there in 1986 (IILM Lakeview Uis- Anrlersnn and Hart lakes. imniediatelv north trict, ilnpilhlished data). of the Hal-t Lake spillky. Adult an; larval Tlic presnmed historical range nf the Wh- suckel-s also were wptureci in Snyder Creek, ner SIIC~PI,I:iitf~.~ti~mt~~ ttii~rn~rt!n~i~, con- ill Honey Creek almvc tlic dam at Plush, at sislcd of the main Warricr lakcs (Pelican, the mouth of Honey Creek in Harl Lakc, at Crurrlp, and Hart) and otlicr acccssillc lakcs the south end of Warner. Valley in Twc~~ty~iiilc and slo~~ghsin W.irner. Valley, and low- to Crcck bctwccn the south crrd of Lllc valley modcratc-gradient rcaclics of tributary floor and the confluence with Twclvcmilc streams. The species description by Snyder Cheek, and in Twelvelr~ileCreekimmedkately (1908) WF had011 specimens collected +om ahove and helow the O'Keefr Diversion lhm. In 1980 C~rumlrsand fiu~~d(1980) sampled lakes hy use of traps, gill ncts, adsciucs, and 22 sites thro11gh1111tthe Isasin. ci+piuri~lg46 From streams with dip nets, tri~pnets, clcc- Warner sr~ckersat 4 lomlities: Ilu~~cyCrcck trrrslio~!ker,kick nets. unrl seines. Most fishes betwcc~lHart lake and the dl111 at Plush. were identified, measured, and retunlerl to canals of Dccp (.:r,cek at the rutend ~dFclican rhcir hal,itat. Volwhel- specimens or thme ac- Jake, the spillway i~~l~rlctliatclyoorth of I-1x1-t cidcntally killed d~rringcollecting are honszd Like, and Swamp Lake. 111 1983 Smith ct al. ;it the Wildlife ii~dFisheries Muscu~n,Urli- (1984) caprurcd 1 adult Warner sucker in vcrsity of Caliti~rnh,Uavis. Opercles fro~rl Grump l.alw and 2 juve~lilcs(approximately five suckkcrs wcrc aged accordulg to the meth- 130 rnrrl total length F1.j) in Deep Crcck ods described hy Sr:rrp~~ettrme(I&%). Visual hetween Adel adrllc hlls. In 1987 an adult obscrvaiio~lswcre made of spawning Warner Warner sucker was caughi by a11 angler Ang suckers in IIoncy i.:~,cck. the slongh just south crf FkgstalTI.akc 0. I.: Williams, personal ol)servntiu~~). This paper s~~mmarizesthc currcni stallrs of these two thrcntcncd Sishes, as deterrrli~~cd In 1987 the RLM a<:~luil-ed1"oskett Spring hy sllrveys co~ductcdLorn 1987 to 198'3. and ihc surv,o~~nding(5 ha, ofwhirh appnrxi- Clthcr. native fishes ofWi~rrrerVallcy i~icl~ldea mately 28 ha wcrc Ccrlccd to cxcludc cattle. local hr~nof redband trout (Oncnrl~~nchtrsThe dace pop~llationat Poskett Spring has mykiss ssp.), tlli chd~(Cih hicolor), and the sinre rxI~ndrdto the spring pol, its outllow, common form 01" spccklcd dace (ti. o,sculue). :d downstream m;lrsli. Ilxeline water qual- The Warnel- Valley rcdla~ldtro~~t 1;lrgely tias ity aud vcgctation inonitoring at Foskett and been displaced tjy ir~troduccd tr.ont and 1s L)ace springs wcrc i~ritialr-dby RI,M in 1987. listed as "of special ~wnce1-n"Ly illc Amwican 'l'he ti~llowingdatu collcctcd 011 28 Scptcmbc~. Fishcries Society (Williams ct nl. 1989). 1988 frrm 1"oskctt Spring iirrd Dacc Spring. respectively, exemplify the two hid)it;lt sini- laritics: air temperahlre 19 mci 17 C, water iemprraturc 17 &id 1.0 (:, dissolved oxygen Thc Wwwr Hasin c~rm~~riscs6858 sq km in 5.3 md 5.9 nlg/l. ~(~~lductivity350 and 250 south central Oregon and small porti(rns of r~lohslcm,pH 8.1 ;md 8.2, alkalinity 114 and ~iorthcasternCalihrrnia and ~mrhwcstc~~nNr- 9H mg/I CaCO,, l~arhcss40.0 ad24.7 mgll, vadii (Fig. I.). 13rainage is internal urld is di- RIKI twhirlity 1.4 and 1.8 N'I'U. vided l~etwcc~iC:olcmao Valley and the much The dace pop111;ltion maintains itself at larger Wxrrrcr Valley. Coleman Valley is n Ui~ccSpri~~gtlcspite a tendency h.vegetati~ln sep;lrate r11-iiinagc in thc southeastem isart of toclajkcout most opca water. The introduced the basin and receives sparse rur~olT.Obscrva- popi~lati~rnl~iis expanded by ~rlovc~r~c~itof fish tiljns oCthc Foslrrtt spetrlded dace ard its habi- throngh a connecting pipe into fi livestock tat in C~rlcrnanVallcy wcre nwdr hn1987 tr~ watcri~iEtrolt:h just east nf the spring. No 1989. Stmdiu-did tl-a~lsccls wcn. estah- ~ltherfish rJccur ill Colcma~lVallcy. lishcd along Foskrtt Spring and ita outflow lo m~init~i-vegctatior~ recovery following cessa- tion of' glazing, urd to qi~mtifyaamo~~nts of opcwwater. hahitat. S~lrveyson 'l'wenty~rlileCreck above ad 111 Warmer Valley all water fl~~wsinlo a SS- helnw the Uyke Uiversion Um1 located I rics of ~iortli-snnth oriented shallow lakcs. adult and 2 la]-val Warner suckers in 1988. slouglls, adpotholes. Ihring with Additional 1987 md 1988 surveys fiiiled tu ahove-avcragc prccipitRtion, as ow111-reddur- locaic War.ncr s~ickerselsewhrre in 'I'welve- ing the eal-ly 1980s and again in 1989, thew milt. Crcck (i~lcludiugsections in Nevada and lakcs fill fimm the south and c.vc11iually over,. Oregon upstreurn of tlrc Nevada Lordcr), the flow i~dothe northern p;wt (+the vallcy. Only canal north of Hal-t Lake, the slough lretwce~l tho three most ~t~uthfrlyIakcs. Pelic;m, VlagataE LiAc a11cI MU~WUIIIPLake, the Crurnp, ad Hart, are permanent. Fish col- slough between hwer Chniphell and Camp- Iecti~rnsin Warner Valley were nixie ti-or11 bell lakcs, 01, Stone (:orma1 1,;ike. In April 1987 to 1989. Sa~nplcswcrc collected hrrn 1989, 28 adult sockcr.s wcrc capti~redat the OREGON wnrnrr 246 J. E. WILLI~MSETAL. [Volume 50 rrmuth of flti~~cyC:rrek in Hart lake, ard 42 Hart Lake, 01- the canal immediately north of wcre rapturcd dong thc cast side of Hart the l;~ke.111trod11ced fishes dominated tlrc Lake. Fish mnged fro111 31 1 to 440 mtn TL Fauna ol'Hart Lukc and other lakes and slo~~ghs (avg. 385.2, ?I = 70), with nlusr 351) to 410 rnm. in thc valley. Whtc crappie (Pornoxis nnnri- Approximately 80-100 other idull Warner lnris) a~ldbrown bullhcad (lctnlunrs nebukr- s~lclwrswcrp ohsenled ill Honey Crcck hr- .su,sj ou~r~r~mhei-edualive fiches in our collec- twecu the most downrtrrnn~divcrion diw tirins from Hart Lakc by slightly morc hn and Hart Lakc. These fish wcre in lirecding 25:l. 'l'ni chub, which liisiorically was tlic condition ar~rl riiilpstr-eim~, uh1-r most ahnnriant fish in lentir hahats, largely they were visible hr(:ause flow in the creek has L)ccr~r.eplaced by white crappie. was reducccl by npstreani clivrrsior~s.In mid- 'lhe W'iirwr s~~clw~-pi~pulation appears to May I989 walcr h~ganspilhfi from Hart Iir lurgcst in Halt Lakc, but no ieaent rccroit- Ixkr into tlic canal toward Andel-son Lake.
Load more

Recommended publications
  • Endangered Species
    FEATURE: ENDANGERED SPECIES Conservation Status of Imperiled North American Freshwater and Diadromous Fishes ABSTRACT: This is the third compilation of imperiled (i.e., endangered, threatened, vulnerable) plus extinct freshwater and diadromous fishes of North America prepared by the American Fisheries Society’s Endangered Species Committee. Since the last revision in 1989, imperilment of inland fishes has increased substantially. This list includes 700 extant taxa representing 133 genera and 36 families, a 92% increase over the 364 listed in 1989. The increase reflects the addition of distinct populations, previously non-imperiled fishes, and recently described or discovered taxa. Approximately 39% of described fish species of the continent are imperiled. There are 230 vulnerable, 190 threatened, and 280 endangered extant taxa, and 61 taxa presumed extinct or extirpated from nature. Of those that were imperiled in 1989, most (89%) are the same or worse in conservation status; only 6% have improved in status, and 5% were delisted for various reasons. Habitat degradation and nonindigenous species are the main threats to at-risk fishes, many of which are restricted to small ranges. Documenting the diversity and status of rare fishes is a critical step in identifying and implementing appropriate actions necessary for their protection and management. Howard L. Jelks, Frank McCormick, Stephen J. Walsh, Joseph S. Nelson, Noel M. Burkhead, Steven P. Platania, Salvador Contreras-Balderas, Brady A. Porter, Edmundo Díaz-Pardo, Claude B. Renaud, Dean A. Hendrickson, Juan Jacobo Schmitter-Soto, John Lyons, Eric B. Taylor, and Nicholas E. Mandrak, Melvin L. Warren, Jr. Jelks, Walsh, and Burkhead are research McCormick is a biologist with the biologists with the U.S.
    [Show full text]
  • Conservation Status of Threatened Fishes in Warner Basin, Oregon
    Great Basin Naturalist Volume 50 Number 3 Article 5 10-31-1990 Conservation status of threatened fishes in arnerW Basin, Oregon Jack E. Williams Division of Wildlife and Fisheries, Bureau of Land Management, Washington, D.C. Mark A. Stern The Nature Conservancy, Portland, Oregon Alan V. Munhall Bureau of Land Management, Lakeview, Oregon Gary A. Anderson Oregon Department of Fish and Wildlife, Lakeview, Oregon Follow this and additional works at: https://scholarsarchive.byu.edu/gbn Recommended Citation Williams, Jack E.; Stern, Mark A.; Munhall, Alan V.; and Anderson, Gary A. (1990) "Conservation status of threatened fishes in arnerW Basin, Oregon," Great Basin Naturalist: Vol. 50 : No. 3 , Article 5. Available at: https://scholarsarchive.byu.edu/gbn/vol50/iss3/5 This Article is brought to you for free and open access by the Western North American Naturalist Publications at BYU ScholarsArchive. It has been accepted for inclusion in Great Basin Naturalist by an authorized editor of BYU ScholarsArchive. For more information, please contact [email protected], [email protected]. Creat &Isio N:l.luraUst 50(3), 1900, pp. 243-248 CONSERVATION STATUS OF THREATENED FISHES IN WARNER BASIN, OREGON 1 l 3 Jack E. Williams , MarkA. Stern \ Alan V. Munhall , and Cary A. Anderson"" A8S'TRACT.-Two fedemlJy listed fisbes, the Foskett speckled daceand Warnersucker, are endemic to Warner Basin in south central Oregon. The Foskett speckled dace is native only to a single spring in Coleman Valley. Anearby'spring was stocked with dace in 1979 and 1980, and now provides a second population. The present numbers ofdace probably are at their Wgbest levels since settlement ofthe region.
    [Show full text]
  • Amphibian Cascades Frog SOC X X Mountain Meadows, Bogs, Ponds Or
    Taxa Species Species SMU/ESU/D Federal State BM CP CR EC KM NR WC WV NS Special needs Limiting factors Data gaps Conservation actions Key reference or plan, if available Common Scientific PS/Group Listing listing Name Name Status status Amphibian Cascades SOC X X Mountain meadows, bogs, ponds or potholes Montane species vulnerable to genetic Habitat requirements and how they may vary by Maintain connectivity of habitat. Monitor effects of fish http://www.fs.fed.us/psw/publications/documents/ frog above 2,400 feet elevation. Requires access isolation. Experiencing substantial elevation within the species' range. Habitat stocking and water quality on populations. Carefully manage psw_gtr244/psw_gtr244.pdf to permanent water. Lays eggs in shallow reductions in southern parts of range characteristics that could enhance migration livestock grazing in occupied wet meadows. Use prescribed sunny edges of ponds, or on low vegetation (e.g., CA). Potentially sensitive to and gene flow. Feeding habits. Effects of burning or hand-felling of trees periodically to set plant near ponds where warm sunlight speeds egg waterborne pathogens. pathogens airborne environmental pollution. succession. If reintroductions are warranted, use individuals development. Larvae may “school” in large Feasibility studies on reintroduction at historic from nearby populations and consult results of feasibility masses. sites. studies. Conservation actions in Oregon are particularly valuable given reductions in other parts of range. Amphibian Cascade X X Cold, fast-flowing, clear, permanent headwater Larvae take several years to reach sexual Basic inventory, abundance and population Maintain stream buffers to maintain cool water Howell, B.L. and N. M. Maggiulli. 2011.
    [Show full text]
  • United States Department of the Interior
    United States Department of the Interior FISH AND WILDLIFE SERVICE Oregon Fish and Wildlife Office 2600 SE 98th Avenue, Suite 100 Portland, Oregon 97266 Phone: (503) 231-6179 FAX: (503) 231-6195 Reply To: 8330.F0047(09) File Name: CREP BO 2009_final.doc TS Number: 09-314 TAILS: 13420-2009-F-0047 Doc Type: Final Don Howard, Acting State Executive Director U.S. Department of Agriculture Farm Service Agency, Oregon State Office 7620 SW Mohawk St. Tualatin, OR 97062-8121 Dear Mr. Howard, This letter transmits the U.S. Fish and Wildlife Service’s (Service) Biological and Conference Opinion (BO) and includes our written concurrence based on our review of the proposed Oregon Conservation Reserve Enhancement Program (CREP) to be administered by the Farm Service Agency (FSA) throughout the State of Oregon, and its effects on Federally-listed species in accordance with section 7 of the Endangered Species Act (Act) of 1973, as amended (16 U.S.C. 1531 et seq.). Your November 24, 2008 request for informal and formal consultation with the Service, and associated Program Biological Assessment for the Oregon Conservation Reserve Enhancement Program (BA), were received on November 24, 2008. We received your letter providing a 90-day extension on March 26, 2009 based on the scope and complexity of the program and the related species that are covered, which we appreciated. This Concurrence and BO covers a period of approximately 10 years, from the date of issuance through December 31, 2019. The BA also includes species that fall within the jurisdiction of the National Oceanic and Atmospheric Administration’s Fisheries Service (NOAA Fisheries Service).
    [Show full text]
  • Joseph R. Tomelleri 28 27
    Nevada 29 34 35 32 2 31 30 3 1 33 20 18 6 4 19 5 8 17 16 12 7 23 15 24 9 21 25 22 10 26 14 13 11 41 36 39 40 38 37 Illustrations by JOSEPH R. TOMELLERI 28 27 N A T I V E F I S H E S O F N E V A D A G R O U P IN G S B Y F A M ILY KILLIFISHES ∙ Cyprinodontidae 11. Big Spring spinedace ∙ Lepidomeda mollispinis pratensis† POOLFISHES ∙ Empetrichthyidae 31. Mountain sucker ∙ Catostomus platyrhynchus 1. Devils Hole pupfish ∙ Cyprinodon diabolis* 12. Moapa dace ∙ Moapa coriacea* 22. Preston White River springfish ∙ Crenichthys baileyi albivallis 32. Warner sucker ∙ Catostomus warnerensis† 2. Ash Meadows Amargosa pupfish ∙ Cyprinodon nevadensis mionectes* 13. Woundfin ∙ Plagopterus argentissimus* 23. Hiko White River springfish ∙ Crenichthys baileyi grandis* 33. Wall Canyon sucker ∙ Catostomus sp. 3. Warm Springs Amargosa pupfish ∙ Cyprinodon nevadensis pectoralis* 14. Colorado pikeminnow ∙ Ptychocheilus lucius* 24. Moapa White River springfish ∙ Crenichthys baileyi moapae 34. Cui-ui ∙ Chasmistes cujus* 25. Railroad Valley springfish ∙ Crenichthys nevadae† 35. Razorback sucker ∙ Xyrauchen texanus* MINNOWS ∙ Cyprinidae 15. Northern pikeminnow ∙ Ptychocheilus oregonesis 26. Pahrump poolfish ∙ Empetrichthys latos* 4. Desert dace ∙ Eremichthys acros† 16. Relict dace ∙ Relictus solitarius TROU T S ∙ Salmonidae 17. Moapa speckled dace ∙ Rhinichthys osculus moapae 5. Humpback chub ∙ Gila cypha* S CUL P INS ∙ Cottidae 36. Mountain whitefish ∙ Prosopium williamsoni 18. Ash Meadows speckled dace ∙ Rhinichthys osculus nevadensis* † 6. Bonytail chub ∙ Gila elegans* 27. Mottled sculpin ∙ Cottus bairdii 37. Lahontan cutthroat trout ∙ Onchorhynchus clarkii henshawi 19. White River speckled dace ∙ Rhinichthys osculus ssp.
    [Show full text]
  • Guam Marine Biosecurity Action Plan
    GuamMarine Biosecurity Action Plan September 2014 This Marine Biosecurity Action Plan was prepared by the University of Guam Center for Island Sustainability under award NA11NOS4820007 National Oceanic and Atmospheric Administration Coral Reef Conservation Program, as administered by the Office of Ocean and Coastal Resource Management and the Bureau of Statistics and Plans, Guam Coastal Management Program. The statements, findings, conclusions, and recommendations are those of the author(s) and do not necessarily reflect the views of the National Oceanic and Atmospheric Administration. Guam Marine Biosecurity Action Plan Author: Roxanna Miller First Released in Fall 2014 About this Document The Guam Marine Biosecurity Plan was created by the University of Guam’s Center for Island Sustainability under award NA11NOS4820007 National Oceanic and Atmospheric Administration Coral Reef Conservation Program, as administered by the Office of Ocean and Coastal Resource Management and the Bureau of Statistics and Plans, Guam Coastal Management Program. Information and recommendations within this document came through the collaboration of a variety of both local and federal agencies, including the National Oceanic and Atmospheric Administration (NOAA) National Marine Fisheries Service (NMFS), the NOAA Coral Reef Conservation Program (CRCP), the University of Guam (UOG), the Guam Department of Agriculture’s Division of Aquatic and Wildlife Resources (DAWR), the United States Coast Guard (USCG), the Port Authority of Guam, the National Park Service
    [Show full text]
  • Nevada Supplement Revised October 2000
    CERL Special Report 96/009 October 1995 Revised October 2000 US Army Corps of Engineers Engineer Research and Development Center The Environmental Assessment and Management (TEAM) Guide Nevada Supplement Revised October 2000 Environmental assessments help determine compliance with current environmental regulations. The U.S. Air Force, U.S. Army, Defense Logistics Agency (DLA), and Corps of Engi- neers (Civil Works) have adopted environmental compliance programs that identify compliance problems before they are cited as violations by the U.S. Environmental Protection Agency. Since 1984, the U.S. Army Construction Engineering Research Laboratory, in cooperation with numerous Department of Defense (DOD) components, has developed environmental compliance assessment checklist manuals. The Environmental Assessment and Management (TEAM) Guide was developed for use by all DOD components. Currently there are five participating DOD components: the Air Force, Air National Guard, Army, Civil Works, and DLA. These agencies have agreed to share the development and maintenance of this Guide. The Guide combines Code of Federal Regulations and management practices into a series of checklists that show legal requirements and the specific operations or items to review. TEAM Guide is supplemented by DOD component- specific manuals detailing DOD component regulations and policies. The Nevada Supplement was developed to be used in conjunction with the TEAM Guide, using existing Nevada state environmental legislation and regulations as well as suggested management practices. Approved for public release; distribution is unlimited. FOREWORD This is USACERL Special Report 96/09. The report is based on the information available on Enflex Federal and State Regulations of August 2000. The research was performed for the Air National Guard under Military Interdepartmental Purchase Request (MIPR) number OMAF57/3400/357/A/9830147/PO, technical monitor Chuck Smith; and the U.S.
    [Show full text]
  • Conservation Status of Imperiled North American Freshwater And
    FEATURE: ENDANGERED SPECIES Conservation Status of Imperiled North American Freshwater and Diadromous Fishes ABSTRACT: This is the third compilation of imperiled (i.e., endangered, threatened, vulnerable) plus extinct freshwater and diadromous fishes of North America prepared by the American Fisheries Society’s Endangered Species Committee. Since the last revision in 1989, imperilment of inland fishes has increased substantially. This list includes 700 extant taxa representing 133 genera and 36 families, a 92% increase over the 364 listed in 1989. The increase reflects the addition of distinct populations, previously non-imperiled fishes, and recently described or discovered taxa. Approximately 39% of described fish species of the continent are imperiled. There are 230 vulnerable, 190 threatened, and 280 endangered extant taxa, and 61 taxa presumed extinct or extirpated from nature. Of those that were imperiled in 1989, most (89%) are the same or worse in conservation status; only 6% have improved in status, and 5% were delisted for various reasons. Habitat degradation and nonindigenous species are the main threats to at-risk fishes, many of which are restricted to small ranges. Documenting the diversity and status of rare fishes is a critical step in identifying and implementing appropriate actions necessary for their protection and management. Howard L. Jelks, Frank McCormick, Stephen J. Walsh, Joseph S. Nelson, Noel M. Burkhead, Steven P. Platania, Salvador Contreras-Balderas, Brady A. Porter, Edmundo Díaz-Pardo, Claude B. Renaud, Dean A. Hendrickson, Juan Jacobo Schmitter-Soto, John Lyons, Eric B. Taylor, and Nicholas E. Mandrak, Melvin L. Warren, Jr. Jelks, Walsh, and Burkhead are research McCormick is a biologist with the biologists with the U.S.
    [Show full text]
  • California's Freshwater Biodiversity
    CALIFORNIA’S FRESHWATER BIODIVERSITY IN A CONTINENTAL CONTEXT Science for Conservation Technical Brief November 2009 Department of Conservation Science The Nature Conservancy, California Freshwater Biodiversity in California 2 California’s Freshwater Ecoregions in a Continental Context A Science for Conservation Technical Brief The Nature Conservancy, California The Freshwater Conservation Challenge Worldwide, freshwater species and habitats are, on average, more imperiled than their terrestrial or marine counterparts. In continental North America alone, 40% of freshwater fish are at risk of extinction or already extinct (Jelks et al. 2008). Despite concerns over the health of the world’s freshwater species and systems (Millennium Ecosystem Assessment 2005), there have been few attempts to systematically describe patterns of freshwater biodiversity on Earth. This is due in part to the lack of comprehensive, synthesized data on the distributions of freshwater species (Abell 2008). Without a robust biodiversity foundation, conservationists face challenges in setting freshwater protection priorities and agendas at the global, continental and regional scales. Freshwater Ecoregions of the World Project To fill this void, in 2008, World Wildlife Fund-US, The Nature Conservancy, and more than 130 scientists participated in the Freshwater Ecoregions of the World (FEOW) project. FEOW identified 426 freshwater ecoregions and provided information on freshwater biogeography and biodiversity; similar analyses exist for the terrestrial and marine realms. Until this effort, global biodiversity classification and planning efforts had been characterized using land-based parameters. FEOW is the first attempt to describe the world from a freshwater perspective. With this information, scientists and conservationists can more clearly compare freshwater biota and their conservation needs across large geographies.
    [Show full text]
  • Ner Sucker, Catostomus Warnerensis, Con
    Creat &Isio N:l.luraUst 50(3), 1900, pp. 243-248 CONSERVATION STATUS OF THREATENED FISHES IN WARNER BASIN, OREGON 1 l 3 Jack E. Williams , MarkA. Stern \ Alan V. Munhall , and Cary A. Anderson"" A8S'TRACT.-Two fedemlJy listed fisbes, the Foskett speckled daceand Warnersucker, are endemic to Warner Basin in south central Oregon. The Foskett speckled dace is native only to a single spring in Coleman Valley. Anearby'spring was stocked with dace in 1979 and 1980, and now provides a second population. The present numbers ofdace probably are at their Wgbest levels since settlement ofthe region. 'The Warner sucker historically occurred throughout much of the Warner Valley, but its distribution and abundance have been reduced by construction ofreservoirs and irrigation dams and the introduction of predatory game fishes. Lentic habitats have become dominated by introduced fishes, particularly white crappie, black crappie, and brown bullhead. The largest remaining IXlPulation ofWarner suckers occurs in Hart Lake, where successful reproduction was documented but there is no evidence of recruitment to the adult population. Two threatened fishes inhabit separate val­ Deep (= Warner) Creek near Adel. The leys in Warner Basin, Oregon. In Coleman Warner sucker was listed as threatened pri­ Valley the only native fish is the Foskett marily because of fragmentation of stream speckled dace, Rhiuichthys osculus ssp., habitats by irrigation diversion dams and the which occurs in Foskett Spring along the west establishment of large populations of intro­ margin oftbe Coleman Lake bed. The lake is duced piscivorous fishes in lentic habitats dryexcept during years ofexceptional rainfall. (U.S.
    [Show full text]
  • Read the Full Recovery Plan
    U.S. Fish & Wildlife Service Recovery Plan forthe Threatened and Rare Native Fishes ofthe Warner Basin and Alkali Subbasin Warner Sucker (Castostom us ‘warmeren sir) I ‘=1W’~ Hutton Thi Chub Foskett Speckled Dace (Gila. bicolor ssp.) (Ril inichthys osenins ssp.) RECOVERY PLAN FOR THE NATIVE FISHES OF THE WARNER BASIN AND ALKALI SUBBASIN: Warner sucker (Threatened) Catostomus warnerensis Hutton tui chub (Threatened) Gila bicolor ssp. Foskett speckled dace (Threatened) Rhinichthys osculus ssp. Prepared By U.S. Fish and Wildlife Service (Oregon State Office) for Region 1 U.S. Fish and Wildlife Service Portland, Oregon Appoved: “I Date: DISCLAIMER PAGE Recovery plans delineate reasonable actions which are believed to be required to recover and/or protect listed species. Plans are published by the U.S. Fish and Wildlife Service, sometimes prepared with the assistance of recovery teams, contractors, State agencies, and others. Plans are reviewed by the public and submitted to additional peer review before they are adopted by the Service. Objectives will be attained and any necessary finds made available subject to budgetary and other constraints affecting the parties involved, as well as the need to address other priorities. Costs indicated for task implementation and/or time of achievement ofrecovery are estimates and subject to change. Recovery plans do not necessarily represent the views nor official positions or approval ofany individuals or agencies involved in the plan formulation, other than the U.S. Fish and Wildlife Service. They represent the official position ofthe U.S. Fish and Wildlife Service only after they have been signed by the Regional Director or Director as approved.
    [Show full text]
  • Information Reports Number 2011-02
    INFORMATION REPORTS NUMBER 2011-02 FISH DIVISION Oregon Department of Fish and Wildlife Status, Distribution, and Life History Investigations of Warner Suckers, 2006- 2010 Status, Distribution, and Life History Investigations of Warner Suckers, 2006-2010 Sunset on Hart Lake looking southwest with the Warner Mountains in the background. Photo credit: S. Starcevich Paul Scheerer1, Steven Jacobs1, Mark Terwilliger2, Stephanie Miller1, Stephanie Gunckel1, Shannon Richardson1, and Michael Heck3 1Oregon Department of Fish and Wildlife Native Fish Investigations Project 28655 Highways 34, Corvallis, Oregon 97333 2Oregon State University Department of Fisheries and Wildlife Nash Hall, Corvallis, Oregon 97330 3U.S. Geological Service Forest and Rangeland Ecosystem Science Center 3200 SW Jefferson Way, Corvallis, Oregon 97331 This project was financed with funding from the U.S. Bureau of Land Management (task orders 134206M093, HLP073006, HLP083003), U.S. Fish and Wildlife Service (task orders 134206M086, 134207M085, and 134208J814 and contracts E-2-46 and E-2-50), U.S. Army Corps of Engineers (task orders W66QKZ8094612 and W66QKZ90227848) and Oregon Conservation Strategy (contract T-17-1). CONTENTS Page INTRODUCTION .......................................................................................................................... 1 METHODS .................................................................................................................................... 3 Distribution and Abundance of Suckers in the Warner Lakes ........................................
    [Show full text]