0000030399 00000 n 0000001374 00000 n Photo credit: Frank Weisbarth. Rio Grande Cutthroat Trout are native to the Rio Grande and Pecos River drainages of Colorado and New Mexico. Brook, Brown, Rainbow, Native Cutthroat Trout and Kokanee Salmon can all be found in these waters. The Rio Grande cutthroat trout was likely the first New World trout to be seen by early American explorers. Rio Grande Cutthroat Trout John N. Rinne, USDA Forest Service, Roclcy Mountain Forest and Range Experiment Station, 2500 S. Pine Knoll, Flagstaff, Arizona 86001 Introduction The Rio Grande cutthroat trout was once wide­ spread in the upper Rio Grande and Canadian River basins of northern New Mexico and south-central The Rio Grande Cutthroat Trout (Oncorhynchus clarkii virginalis) historically occupied in various cool streams throughout the Rio Grande Watershed, including the Chama, Jemez Rio San Jose, the Pecos, and Canadian drainages.Today, they currently live in only about 100 headwater streams in Colorado and New Mexico (10 percent of their former range). The aquarium at the Los Alamos Nature Center features four species of fish that are native to the Jemez River: Rio Grande Cutthroat Trout, Rio Grande Suckers, Rio Grande Chub, and Longnose Dace. Life history; Conservation status; References; External links; It is one of 14 subspecies of cutthroat trout native to the western United States, and is the state fish of New Mexico. U.S. 0000020748 00000 n 0000006799 00000 n 0000004524 00000 n An understanding of the upper thermal tolerance of Rio Grande Cutthroat Trout is important for developing water temperature standards and … As a result of these changes, Rio Grande cutthroat trout populations are restricted primarily to headwater streams. The Rio Grande cutthroat trout (Oncorhynchus clarki virginalis), a member of the family Salmonidae, is found in northern New Mexico and southern Colorado in tributaries of the Rio Grande., [1] [2]. READ MORE about New Mexico Game and Fish Department’s efforts to conserve Rio Grande Cutthroat Trout. The Rio Grande Cutthroat Trout Oncorhynchus clarkii virginalis is the southernmost subspecies of Cutthroat Trout, and as with the other subspecies, stream temperature regulates growth, reproductive success, distribution, and survival. 0000033078 00000 n SPECIES SUMMARY . Genetically pure populations of this rare native trout … The historic range of Rio Grande cutthroat trout has been reduced over the last 150 years due to many changes on the landscape, including: drought, water infrastructure, habitat changes, hydraulic changes, hybridization with rainbow trout and other species of cutthroat trout, and competition with brown trout and brook trout. 0000030050 00000 n Those familiar with nature know that wildlife tend to care little for human boundaries. Rio Grande Cutthroat Trout (Oncorhynchus clarkii virginalis) is one of three recognized subspecies of native trout found in Colorado, and is the southernmost subspecies of cutthroat trout. Status Review for Rio Grande Cutthroat Trout, 73 Fed. The Rio Grande cutthroat trout is one of two native species of trout found in New Mexico (The other native New Mexico trout specie we have is the Gila Trout which is only found in southern part of the state). Native range: Northern New Mexico/Southern Colorado. This area is perfect for all kinds of anglers: new, experienced, young, and old. trailer The Conservation Team is a working group of agency representatives charged with the management and protection of the Rio Grande cutthroat trout, and it includes members of the public who have committed their time to actively participate in developing this Conservation READ the 2013 Rio Grande Cutthroat Trout Conservation Agreement, Download this brochure about Rio Grande Cutthroat Trout by clicking on the link below. subspecies have historically been introduced throughout the range of Rio Grande cutthroat trout for recreational angling, and they are known to readily hybridize with Rio Grande cutthroat trout. 989 28 In 1541, Francisco de Coronado recorded his first glimpses of cutthroat trout in the Pecos River near what is now Santa Fe, New Mexico. 0000002667 00000 n The current range of the Rio Grande cutthroat trout, in red, is about 10% of its historic range, in blue. This finding is available on the Internet at http://www.regulations.gov at Docket Number FWS-R2-ES-2014-0042. Rio Grande cutthroat trout thrive in clear, cold, high-altitude streams. Habitat loss and non-native species introduction are two of the primary culprits for the Rio’s decline. Rio Grande cutthroat trout have been replaced by nonnative trout throughout more than 90 perent of their historic range. This beautiful trout is considered a minor subspecies of the Yellowstone cutthroat and is native to the Rio Grande, Canadian and Pecos River drainages of New Mexico and Colorado. 0000006182 00000 n Rio Grande Cutthroat Trout. However, due to the loss of populations across their native range and reports of Rio Grande cutthroat in Mexico and Texas, it is unclear how far south this trout once occurred. READ MORE more about Colorado Parks and Wildlife’s efforts to conserve Rio Grande Cutthroat Trout. 0000006064 00000 n Click on the Layers icon and select the cutthroat variants to view. Rio Grande cutthroat trout are a strand representing the southern end of the cutthroat species. Projects have ranged from barrier construction/restoration to keep non-native trout out of conservation waters, habitat restoration, genetics analysis, and public outreach and education. The Mexican reports have been all but dismissed, but Garrett and Matlock (1991) provided evidence indicating that Rio Grande cutthroat were likely native to Texas. An updated conservation agreement and 10-year plan to protect the Rio Grande Cutthroat Trout was signed in 2013 with the goal of assuring the long-term viability of Rio Grande Cutthroat Trout throughout its historic range and setting a conservation strategy for the near future. Photos courtesy of Kevin Terry. Rio Grande cutthroat trout Greenback cutthroat trout: O. c. stomias (Cope, 1871) Native to the Arkansas and South Platte River headwaters on the eastern slopes of the Rocky Mountains in Colorado; it is designated as threatened (1978). The photos below are Rio Grande Cutthroat Trout. *)i4�\W�c2 The Rio Grande cutthroat trout has dwindled in its native habitat. h���A 0ð4`�z\Gcw��������z�C. 0000004915 00000 n The Rio Grande cutthroat trout (Oncorhynchus clarki virginalis), a member of the family Salmonidae, is found in northern New Mexico and southern Colorado in tributaries of the Rio Grande., It is one of 14 subspecies of cutthroat trout native to the western United States , and is the state fish of New Mexico. This species is located in mountainous headwaters and small streams. View the press release here. Now climate change, in the form of lower winter snowpack and reduced precipitation, challenges its long-term persistence. 0000000016 00000 n Fish and Wildlife Service Determines ESA Protection for the Rio Grande Cutthroat Trout is Not Warranted. 0000030656 00000 n 0000007485 00000 n 1016 0 obj <>stream <]/Prev 1108539/XRefStm 1374>> Like cutthroat trout in general, the Rio Grande cutthroat trout is now rare throughout its native range (Behnke, 1979; Sublette et al., 1990). Stream-dwelling cutthroat trout generally inhabit mid to high-elevation streams … 0000003797 00000 n All documented US populations . %PDF-1.4 %���� This data set characterizes the thermal regime in a number of Colorado and New Mexico streams that contain populations of Rio Grande Cutthroat Trout (Oncorhynchus clarkii virginalis) or have been considered potential restoration areas for the fish. Fish and Wildlife Service (Service) found that listing the Rio Grande cutthroat trout (Oncorhynchus clarkii virginalis) under the Endangered Species Act is not warranted at this time. 12-Month Finding on a Petition to List They currently live in only about 100 headwater streams, occupying 10 percent of their former range. 989 0 obj <> endobj �t%5�xX�Sy�w�C|�M�I�9WU�T^�1sr��'�4ֱ˕.�6��.ږ�s� ��JkRD��!������@�1uL�+]&9�ڡ>��LSk��2u�Ӥ�ŭ?��uE��섢`³���20 Rio Grande cutthroat have the distinction of being the southern most subspecies of cutthroat trout. Rio Grande Cutthroat occupy just over 10% of their native range and are primarily confined to high elevation streams. In Trout and Salmon of … The cutthroat subspecies persists in only 10 percent of its natural range: the upper Rio Grande basin, the upper Pecos, and the furthest reaches of small Canadian River tributaries. Adults grow up to 12-13 inches long. Click here to watch a short video produced by WNTI featuring Rio Grande Cutthroat Trout in southern Colorado. Today the southernmost known populations are found on the eastern flank… However due to the loss of populations across t… ONCORHYNCHUS CLARKII VIRGINALIS . 0000027522 00000 n h�b```b``y������� € "@16� @gg���En`1c�Y�ƠT���uO w��h�] Fish and Wildlife Service, U.S. Forest Service, Bureau of Land Management, the National Park Service, the Jicarilla-Apache Nation, the Mescalero-Apache Nation, and the Taos Pueblo tribe and conservation organizations such as the Western Native Trout Initiative and Trout Unlimited has collaborated to work on range-wide protection plans and completed numerous conservation projects for the species. Cutthroat trout historic range via Western Trout. (PEEC Archival Photo) By Casey Harthorn, New Mexico Department of Game & Fish. They are also believed to be native to the Canadian Riverd-rainage of Colorado and New Mexico, but no early historic specimens or written accounts are available to verify this. Native to Colorado and New Mexico, the Rio Grande Cutthroat is the United States’ southernmost cutthroat subspecies. 0000001753 00000 n As required by law, the Service revisited the decision to list the Trout five years later, and in 2014, the Service changed its mind again, finding that the Trout no longer warranted listing. They have a yellowish green-gray to gray body with scattered black spots, and a densely spotted tail. These waters will accommodate your needs. Rio Grande cutthroat trout – a native subspecies of New Mexico – are as integral to the land’s history as its ecosystems. Much of the trout’s natural habitat has been harmed by livestock overgrazing, recreational activities and vegetation limitations in the riparian areas of water sheds. Abstract. Drought poses a major threat to New Mexico’s state fish, the Rio Grande cutthroat trout. Rio Grande cutthroat trout, Oncorhynchus clarkii virginalis, can be found in high elevation streams and lakes of the Rio Grande, Canadian, and Pecos River drainages in Colorado and New Mexico, giving it the southern-most distribution of any form of Cutthroat Trout.It now only occupies just 12 percent of its historic habitat in approximately 800 miles of streams. The Rio Grande cutthroat was the first trout to be discovered in North America by Europeans and was first described in 1541 by Spaniards crossing the southwest in search of gold. �w�9i�8d:�H�8�()� ��HK �6Xy0`E�0�1X90�0�03>`�����$ʠ������,FM�� �g�2L��b`y���A������"�D02�00H2�(0|f�m�p�A������3 ��c G7�-�1,9��,l�L^��L� �_� The Rio Grande Cutthroat has officially been designated as the New Mexico State Fish. Ultimate USA Cutthroat Map. Both of the photos below are of Lake Fork Conejos Rio Grande Cutthroat Trout. 0000001576 00000 n Contents. 0000004197 00000 n Reg. The native range of the Rio Grande Cutthroat suspiciously cuts off right at the Texas border. 0 27,900–26 (May 14, 2008) (“the 2008 Determination”). Rio Grande cutthroat have the distinction of being the southernmost subspecies of cutthroat trout. The Rio Grande cutthroat trout (RGCT) is native to the Rio Grande, and Pecos and Canadian rivers of Colorado and New Mexico. Rio Grande Cutthroat Trout (Oncorhynchus clarkii virginalis; RGCT) is the southernmost occurring subspecies of Cutthroat Trout and is designated as New Mexico’s state fish.RGCT are brilliantly colored, with brass colored sides transitioning to green and bronze … The historic range of Rio Grande cutthroat trout has been reduced over the last 150 years due to many landscape changes, including drought, water infrastructure, habitat changes, hybridization with rainbow trout and other species of cutthroat trout, and competition from brown trout and brook trout. They are pursued in New Mexico and Colorado on the Rio Grande, Pecos, and Canadian Rivers, as well as in the Guadalupe and Davis Mountains of Texas. Climate change may exacerbate this risk factor as warmer waters may make high elevation habitats more susceptible to invasion by rainbow trout. After review of the best available scientific and commercial information, the U.S. endstream endobj 1015 0 obj <>/Filter/FlateDecode/Index[53 936]/Length 50/Size 989/Type/XRef/W[1 1 1]>>stream All rights reserved. It was listed as "threatened" in Colorado until 1985 when successful recovery efforts enabled delisting (Trotter, 1987). A multi-agency effort to restore it still can inspire anger and concern. Blueheads and Bonnevilles – Weber River, Utah, Rio Grande Cutthroat Species Status Report, 2013 Rio Grande Cutthroat Trout Conservation Agreement. 0000027903 00000 n The Service found that the Rio Grande cutthroat trout is not in danger of extinction throughout its range or in a significant portion of its range now, nor is it likely to become so in the foreseeable future. Rio Grande cutthroat trout. 0000024128 00000 n Rio Grande Cutthroat Trout . SAVING THE RIO GRANDE CUTTHROAT TROUT Large numbers of Rio Grande cutthroat trout once swam the cool, clear waterways of southern Colorado and New Mexico. 2.0 - 9/2009 . startxref %%EOF 0000002165 00000 n The Rio Grande cutthroat evolved in New Mexico as a member of the native fish assemblage that included the longnose dace, the Rio Grande chub and the Rio Grande Sucker. Erik Myhre – Photographer. of Game and Fish, U.S. For more than 20 years, agency biologists have been searching for Rio Grande cutthroat trout populations, studying their habitat, and restoring the species to streams. Historically, the Rio Grande cutthroat trout (Oncorhynchus clarkii virginalis) occupied all cool waters in the Rio Grande drainage including the Chama, Jemez, and Rio San Jose drainages, along with suitable waters of the Pecos and Canadian drainages. Rio Grande cutthroat trout: O. c. virginalis (Girard, 1856) Native to New Mexico and southern Colorado. 0000005285 00000 n The majority of these streams had no previous record of continual temperature records. 0000000875 00000 n Here’s the release from Colorado Parks and wildlife:. A conservation team established in 2003, composed of Colorado Parks and Wildlife, New Mexico Dept. 0000002555 00000 n Historically, the Rio Grande cutthroat trout (Oncorhynchus clarkii virginalis) occupied all cool waters in the Rio Grande drainage including the Chama, Jemez, and Rio San Jose drainages, along with suitable waters of the Pecos and Canadian drainages. You can zoom in to Level 14, roughly 1:35,000 scale. 0000002781 00000 n Full operation requires a pointing device: overlays marked (TT) show additional info in … Between 2007 and 2020, the Western Native Trout Initiative has provided $692,945 in funding to 24 projects to benefit Rio Grande Cutthroat Trout. 0000027182 00000 n Historically, Rio Grande Cutthroat Trout occupied all cool waters in the Rio Grande drainage, including the Chama, Jemez and Rio San Jose drainages, along with suitable waters of the Pecos and Canadian drainages. Likely fished by the ancient Anasazi civilization, they were also the first trout to be identified in the New World by early explorers. xref The fish retreated to small headwater streams due to habitat lost to overgrazing and a century of competition with nonnative trout … ©2019 Western Native Trout Initiative. Rio Grande Cutthroat Trout Range-wide Conservation Team . This southernmost subspecies of cutthroat trout, found only in New Mexico and Colorado, has already been restricted to an estimated 12% of its former range. 0000029736 00000 n Rev. Therefore, the Service will remove this subspecies from the candidate list. However, the Service is asking the public to submit any new information that becomes available concerning the status of the Rio Grande cutthroat trout at any time. An updated conservation agreement and strategy plan to protect the Rio Grande cutthroat trout was recently signed by the states of Colorado and New Mexico, three Native American tribes and several federal agencies. A densely spotted tail introduction are two of the best available scientific and commercial information the. From the candidate List short video produced by WNTI featuring Rio Grande Cutthroat.... Cutthroat variants to view, roughly 1:35,000 scale by nonnative trout throughout more 90! 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