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Last modified
7/14/2009 5:01:45 PM
Creation date
5/22/2009 6:20:35 PM
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UCREFRP
UCREFRP Catalog Number
7325
Author
McNatt, R. M. and D. L. Skates.
Title
Fishery Investigation of the Yampa and Green Rivers, Dinosaur National Monument, Colorado and Utah, 1981.
USFW Year
1981.
USFW - Doc Type
91-100.
Copyright Material
YES
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19 <br />1 <br />U. S. Fish and Wildlife Service, CPFp <br />447 E. Main, Vernal, Utah 84078 <br />91 <br /> <br />)7?1 <br />Abstract--The whitewater canyons of the Yampa and Green rivers within <br />Dinosaur National Monument, Colorado and Utah, have been reported as important <br />habitat for endangered fishes. The U. S. Fish and Wildlife Service initiated <br />a cooperative fishery study in Dinosaur National Monument, in March, 1981, as <br />part of a larger study of the fishes of the Green River Basin. Results from <br />a standardized sampling program indicated eight native species (Catostomus <br />discobolus, Catostomus latipinnis, Xyrauchen texanus, Ptychocheilus lucius, <br />Gila robusta, Gila cypha, Rhinichthys osculus, and Cottus bairdi) were present <br />in both the Yampa and Green rivers within the monument. Ptychocheilus lucius <br />was found throughout the monument, but was uncommon in abundance. Xvrauchen <br />texanus was found only in small numbers at the Yampa/Green confluence during <br />May and June. G. cypha was extremely rare; a total of 5 individuals was found <br />at one sample site on the Green and two sites on the Yampa. Cyprinus carpio, <br />Ictalurus punctatus-, Notropis lutrensis, Notroois stramineus, and Richardsonius <br />balteatus were the most abundant and widely distributed of the twelve introduced <br />species collected. <br />Investigaciones Pesqueras en los Rios Yampa y Verde, <br />Monumento Nacional de "Dinosaur", Estados <br />de Colorado y Utah, 1981 <br />R. M. McNatt y D. L. Skates <br />Servicio de Peces y Animales Silvestres, CRFP <br />Abstracto--Los canones de corrientes ligeras en los Rios Yampa y <br />Verde entre el Monumento Nacional de "Dinosaur", estados de Colorado y Utah, <br />han sido exponidos como habitat importante para los peces empeligrados. <br />El Servicio de Peces y Animales Silvestres de los Estados Unidos inicio un <br />estudio cooperativo de peces en el Monumento Nacional de "Dinosaur", en Marzo, <br />1981, como parte de un estudio mayor de los peces de la Cuenca del Rio Verde, <br />Resultados de un programa cla'sico de muestra indicaron que ocho especies <br />nativas (Catostomus discobolus, Catostomus latipinnis, Xyrauchen texanus, <br />Ptychocheilus lucius, Gila robusta, Gila cypha, Rhinichthys osculus, y Cottus <br />bairdi) fueron presente en los Rios Yampa y Verde entre el monumento. <br />Ptychocheilus lucius se encontro por todo el monumento, pero sin ser comum en <br />abundancia. Xyrauchen texanus se hallo solamente en numeros escasos en la <br />confluencis de los R Yampa y Verde durante Mayo y Junio. G. cypha fue <br />estremamente raro; un total de 5 individos se hallaron en un sitio de muestra <br />en el Rio Verde y en dos sitios en el Rio Yampa. Cyprinus carpio, Ictalurus <br />punctatus, Notropis lutrensis, Notropis stramineus, y Richardsonius balteatus <br />fueron las mas abundantes y mejor destribuidas de las doce especies introducidas <br />que se colectaron. <br />& " l ?Jsk Govr-ck( "c. I3 <br /> <br /> <br />Fishery investigation of the Yampa and Green Rivers, <br />Dinosaur National Monument, Colorado and Utah, 1981 <br />R. M. McNatt and D. L. Skates <br />1981
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