• Skip to primary navigation
  • Skip to main content
  • Skip to footer
UT Shield
Hendrickson Lab
  • Home
  • Bio
  • What we do
  • Projects
  • Publications
  • Blogs

Biodiversity Collections (Texas Natural History Collections),
building LSF/PRC176 (campus mail R4000), 10100 Burnet Rd.
Austin, TX 78758-4445

Mexican Trout

December 11, 2024, Filed Under: Mexican Trout

Trout Conservation

Over the years we were able to initiate at least some on-the-ground conservation efforts for what we perceived to be the most threatened species (see our 2013 white paper and this book chapter). Since then:

2019

  • Hendrickson’s presentation at the Desert Fishes Council meeting in November provided an update on what is known of these fishes and their conservation status, and has nice illustrations of some of them.
  • In December our formal conservation assessments for each of the species that the Truchas Mexicanas team is working to describe were published by the International Union for the Conservation of Nature in its IUCN Red List:
    • Three species were determined to be Critically Endangered, 5 Endangered, 3 Near Threatened, and 1 Data Deficient. 
    • This link (when further filtered on “Land Areas” and “Mesoamerica”) will retrieve the assessments for all 12 Mexican species (11 yet to be described, as well as the formally described Mexican Golden Trout).  The same documents are also individually available in our project’s publication list (see the Hendrickson & Tomelleri 2019 ones and click on their dois in the Info tab). 
    • We are optimistic that these will help spark additional conservation efforts and generate much-needed funding.

2020

  • Hendrickon co-authored a book that provides an overview of the recently updated conservation status of all Mexican Freshwater fishes, that contains a short feature section (separately available here) about Mexican trout.

December 11, 2024, Filed Under: Mexican Trout

Sponsors

Administrative and financial support

Since our first expedition in 1997 we have paid for travel and other expenses with our own personal funds and relied on support from our diverse institutions for equipment and basic supplies, however, our 2002 fieldwork and related genetic analyses were sponsored by the U.S. National Science Foundation.

  • General
    • National Science Foundation (SGER: Biodiversity of Native Mexican Trout (Genus Oncorhynchus spp.) and The Impending Threat of Their Demise by The Exotic Rainbow Trout O. mykiss gairdneri (Teleostei: Salmonidae). DEB 0240184
    • Texas Memorial Museum and Department of Integrative Biology, University of Texas at Austin (for web support and server space for these pages and associated field and office time of webmaster Dean Hendrickson)
  • Northern Conchos Trout
    • World Wildlife Fund, Chihuahua (http://www.worldwildlife.org/)
    • Trout Unlimited (http://www.tu.org)
    • Native Fish Conservancy (http://www.nativefish.org)
    • Mexico-North Research Network (http://www.mexnor.org)

December 11, 2024, Filed Under: Mexican Trout

Publications

Truchas Mexicanas published its first overview paper on the project in 2003, and our most recent overview came out in a new book on Trout and Char of the World in September 2019. It has a map, habitat photos and Joseph R. Tomelleri’s beautiful illustration’s of most species in the process of being described. Tomelleri also does video production – check out his impressive video story of the fishes and the group’s work.

A doctoral dissertation and resultant paper used many of Truchas Mexicana’s extensive DNA samples that solidified the growing evidence of the genetic distinctiveness of all Mexican forms, and documented that Mexico has perhaps more overall genetic diversity in its trout than is found across all US species. The genetics also substantiated our field observations that often indicated very small, isolated populations.

In 2016, our Mexican colleagues published a book focused on the one formally named species, the Mexican Golden Trout (which will likely ultimately be split into multiple species). It includes chapters covering everything from basic biology and ecology, computer modeling of genetic landscapes, trout culture operations, to socio-economic issues confronting trout management and conservation.  

Our Zotero Group-based bibliography is maintained with the intent of facilitating access by anyone interested to all of the resources now available for research and conservation efforts. Exploring it will quickly demonstrate that though these species are still un-described, significant progress toward understanding them and the conservation challenges they confront has been made, and is ongoing, by an increasinly diverse goup of researchers than ever before.

Finally, though most items from it have been added to the Zotero Group, some remain only in our complete 2003 – present publication list, so we maintain a link to that as we continue working on getting everything into the Zotero group.

December 11, 2024, Filed Under: Mexican Trout

Mexican Trout publications list

We’re testing out a Zotero Group where all team members will be able to help this collection continue to evolve, but for now, here’s a static Mexican Trout publication list current as of July 17, 2019: 

(46) Hendrickson, Dean A., and Joseph R. Tomelleri. in press 2019. “Mexican Trout: Treasures of the Sierra Madre.” In Trout and Char of the World, edited by Jeffrey L. Kershner, Jack E. Williams, Robert E. Gresswell, and Javier Lobón-Cerviá. Bethesda, Maryland, USA: American Fisheries Society. 

(45) Escalante, M. A.; León, F. J. G.-D.; Ruiz‐Luna, A.; Landguth, E.; Manel, S. The Interplay of Riverscape Features and Exotic Introgression on the Genetic Structure of the Mexican Golden Trout (Oncorhynchus Chrysogaster), a Simulation Approach. Journal of Biogeography 2018, 45(7), 1500–1514. https://doi.org/10.1111/jbi.13246.

(44) Escalante, M. A.; Perrier, C.; Garcia de Leon, F. J.; Ruiz Luna, A.; Ortega Abboud, E.; Manel, S. Effect of Riverscape and Exotic Introgression on the Genetic Structure and Local Adaptation of the Endangered Mexican Golden Trout ( ). bioRxiv 2018. https://doi.org/10.1101/500041.

(43) Williams, J. E.; Isaak, D. J.; Imhof, J.; Hendrickson, D. A.; McMillan, J. R. Cold-Water Fishes and Climate Change in North America. In The Encyclopedia of the Anthropocene; DellaSala, D. A., Goldstein, M. I., Eds.; Reference Module in Earth Systems and Environmental Sciences; Elsevier, 2017; Vol. 2, pp 103–111.

(42) Ruiz-Luna, A.; Hernández-Guzmán, R.; León, F. J. G.-D.; Ramírez-Huerta, A. L. Potential Distribution of Endangered Mexican Golden Trout (Oncorhynchus Chrysogaster) in the Rio Sinaloa and Rio Culiacan Basins (Sierra Madre Occidental) Based on Landscape Characterization and Species Distribution Models. Environ Biol Fish 2017, 1–13. https://doi.org/10.1007/s10641-017-0624-z.

(41) Ruiz Campos, G. La Trucha Arcoíris de la Sierra San Pedro Mártir: bionomía, ecología poblacional, hábitat y conservación / The Rainbow Trout of the Sierra San Pedro Mártir: bionomics, population ecology, habitat and conservation; colección UABC; Universidad Autónoma de Baja California: Mexicali, Baja California, México, 2017.

(40) Escalante Sanchez, M. A. Riverscape Genetics in the Endangered Mexican Golden Trout (Oncorhynchus Chrysogaster) in Sierra Madre Occidental, Mexico. Ph.D., Université Montpellier: Montpellier, France, 2017.

(39) Tomelleri, J. R. Truchas Mexicanas, the Native Trout of Mexico (video); 2016. https://www.youtube.com/watch?v=IgLvcImJW1I&t=12s

(38) Sánchez Ortiz, E.; Cassio Madrazo, E.; Medina Herrera, E. La política pública mexicana de truchicultura / The public policy of trout farming in Mexico. In La Trucha Dorada Mexicana; Arturo Ruiz Luna and Francisco García de León: México, 2016; pp 203–215.https://cibnor.repositorioinstitucional.mx/jspui/handle/1001/1364

(37) Ruiz-Luna, A.; Hernández Guzmán, R.; García De León, F. J.; Ramírez Huerta, A. L. Predicción de la distribución geográfica de trucha dorada Oncorhynchus chrysogaster (Needham y Gard 1964) en los ríos Sinaloa y Culiacán, México / Prediction of the geographical distribution of Golden Trout Oncorhynchus chrysogaster (Needham and Gard 1964) in the Sinaloa and Culiacán rivers, Mexico. In La Trucha Dorada Mexicana; Ruiz-Luna, A., Garcia De León, F. J., Eds.; Arturo Ruiz Luna and Francisco García de León: México, 2016; pp 97–114.https://cibnor.repositorioinstitucional.mx/jspui/handle/1001/1364

(36) Ruiz-Luna, A.; Garcia De León, F. J. La trucha dorada mexicana: estado actual, oportunidades de estudio y retos para el manejo y conservación de una especie endémica en riesgo / Mexican Golden Trout: current status, study opportunities and challenges for the management and conservation of an endemic species at risk. In La Trucha Dorada Mexicana; Arturo Ruiz Luna and Francisco García de León: México, 2016; pp 1–12.https://cibnor.repositorioinstitucional.mx/jspui/handle/1001/1364

(35) La Trucha Dorada Mexicana / The Mexican Golden Trout, 1st ed.; Ruiz-Luna, A., Garcia De León, F. J., Eds.; Arturo Ruiz Luna and Francisco García de León: México, 2016.https://cibnor.repositorioinstitucional.mx/jspui/handle/1001/1364

(34) Ruiz-Luna, A.; García De León, F. J. Análisis del contenido estomacal de la trucha dorada mexicana Oncorhynchus chrysogaster (Needham y Gard 1964) en los ríos Fuerte, Culiacán y Sinaloa, México / Analysis of the stomach content of the Mexican golden trout Oncorhynchus chrysogaster (Needham and Gard 1964) in the Fuerte, Culiacán and Sinaloa rivers, Mexico. In La Trucha Dorada Mexicana; Arturo Ruiz Luna and Francisco García de León: México, 2016; pp 39–52. https://cibnor.repositorioinstitucional.mx/jspui/handle/1001/1364

(33) Ruiz-Luna, A. Relaciones biométricas y aspectos poblacionales de la trucha dorada mexicana Oncorhynchus chrysogaster en las cuencas de los ríos Fuerte, Sinaloa y Culiacán, México / Biometric relationships and population aspects of the Mexican golden trout Oncorhynchus chrysogaster in the Fuerte, Sinaloa and Culiacán river basins, Mexico. In La Trucha Dorada Mexicana; Arturo Ruiz Luna and Francisco García de León: México, 2016; pp 73–86. https://cibnor.repositorioinstitucional.mx/jspui/handle/1001/1364

(32) Ruiz Campos, G.; Reyes Valdez, C. A.; Camarena Rosales, F.; González Acosta, A. F. Relaciones biométricas comparativas de peso y longitud y longitud-longitud entre la trucha dorada mexicana (Oncorhynchus chrysogaster) y otras truchas nativas del noroeste de México / Comparative biometric relationships of weight and length and length-length between Mexican Golden Trout (Oncorhynchus chrysogaster) and other native trout from northwestern Mexico. In La Trucha Dorada Mexicana; Arturo Ruiz Luna and Francisco García de León: México, 2016; pp 87–96. https://cibnor.repositorioinstitucional.mx/jspui/handle/1001/1364

(31) Penaluna, B. E.; Abadía-Cardoso, A.; Dunham, J. B.; León, F. J. G.-D.; Gresswell, R. E.; Ruiz-Luna, A.; Taylor, E. B.; Shepard, B. B.; Al-Chokhachy, R.; Muhlfeld, C. C.; et al. Conservation of Native Pacific Trout Diversity in Western North America. Fisheries 2016, 41 (6), 286–300. https://doi.org/10.1080/03632415.2016.1175888.

(30) Penaluna, B. E. Conservación de truchas del Pacífico / Conservation of Pacific trout. In La Trucha Dorada Mexicana; Arturo Ruiz Luna and Francisco García de León: México, 2016; pp 183–188. https://cibnor.repositorioinstitucional.mx/jspui/handle/1001/1364

(29) Hernández Guzmán, R.; Ruiz-Luna, A. Caracterización paisajística e hidrológica de la Sierra Madre Occidental utilizando técnicas de Percepción Remota, Modelos Digitales de Elevación y Sistemas de Información Geográfica / Landscape and hydrological characterization of the Sierra Madre Occidental using Remote Sensing techniques, Digital Elevation Models and Geographic Information Systems. In La Trucha Dorada Mexicana; Arturo Ruiz Luna and Francisco García de León: México, 2016; pp 13–28.https://cibnor.repositorioinstitucional.mx/jspui/handle/1001/1364

(28) Hendrickson, D. A. Prologo / Prologue. In La Trucha Dorada Mexicana; Arturo Ruiz Luna and Francisco García de León: México, 2016; pp v–vii.https://cibnor.repositorioinstitucional.mx/jspui/handle/1001/1364

(27) García De León, F. J.; Getino Mamet, L. N.; Rodríguez Jaramillo, M. del C.; Sánchez González, S.; Márquez, F.; Ruiz-Luna, A. Dimorfismo sexual y periodo reproductivo de la trucha dorada mexicana, Oncorhynchus chrysogaster en los ríos Fuerte, Sinaloa y Culiacán / Sexual dimorphism and reproductive period of the Mexican Golden Trout, Oncorhynchus chrysogaster in the Fuerte, Sinaloa and Culiacán rivers. In La Trucha Dorada Mexicana; Arturo Ruiz Luna and Francisco García de León: México, 2016; pp 53–72.https://cibnor.repositorioinstitucional.mx/jspui/handle/1001/1364

(26) Espinosa Pérez, H.; Lambarri Martínez, C.; Martínez Castro, A. La truticultura en México y sus implicaciones para las truchas nativas / Trout farming in Mexico and its implications for native trout. In La Trucha Dorada Mexicana; Arturo Ruiz Luna and Francisco García de León: México, 2016; pp 173–182. https://cibnor.repositorioinstitucional.mx/jspui/handle/1001/1364

(25) Escalante, M. A.; García De León, F. J.; Dillman, C. B.; De los Santos Camarillo, A. B.; George, A.; Barriga Sosa, I. de los Á. Introgresión genética de la trucha arcoíris exótica en poblaciones de trucha dorada mexicana / Genetic introgression of exotic Rainbow Trout in populations of Mexican Golden Trout. In La Trucha Dorada Mexicana; Arturo Ruiz Luna and Francisco García de León: México, 2016; pp 125–136. https://cibnor.repositorioinstitucional.mx/jspui/handle/1001/1364

(24) Cassio Madrazo, E.; Medina Herrera, E.; Sánchez Ortiz, E.; Hernández Ramírez, C. I.; Moreno Sánchez, J. F. Caracterización Socioeconómica de la Actividad Truchícola en el estado de Durango: Un acercamiento para dimensionar su importancia / Socioeconomic characterization of the trout culture activity in the state of Durango: An approach to measure its importance. In La Trucha Dorada Mexicana; Arturo Ruiz Luna and Francisco García de León: México, 2016; pp 189–202. https://cibnor.repositorioinstitucional.mx/jspui/handle/1001/1364

(23) Barriga Sosa, I. de los Á.; Arredondo-Figueroa, J. L.; Ingle de la Mora, G.; García De León, F. J. Estrategias acuícolas para la conservación de trucha nativa: primeras experiencias / Aquaculture strategies for the conservation of native trout: first experiences. In La Trucha Dorada Mexicana; Arturo Ruiz Luna and Francisco García de León: México, 2016; pp 137–152. https://cibnor.repositorioinstitucional.mx/jspui/handle/1001/1364

(22) Aguilar Zárate, G.; Ruiz Luna, A.; Betancourt Lozano, M. Presencia de Compuestos Organoclorados Persistentes (COPs) en poblaciones de trucha dorada mexicana (Oncorhynchus chrysogaster), especie endémica de la Sierra Madre Occidental / Persistent presence of organochlorine compounds (COPs) in populations of Mexican Golden Trout (Oncorhynchus chrysogaster), endemic species of the Sierra Madre Occidental. In La Trucha Dorada Mexicana; Arturo Ruiz Luna and Francisco García de León: México, 2016; pp 115–124. https://cibnor.repositorioinstitucional.mx/jspui/handle/1001/1364

(21) Abadía-Cardoso, A.; García De León, F. J.; Garza, J. C. Historia evolutiva y biodiversidad genética de las truchas de la Sierra Madre Occidental / Evolutionary history and genetic biodiversity of the trout of the Sierra Madre Occidental. In La Trucha Dorada Mexicana; Arturo Ruiz Luna and Francisco García de León: México, 2016; pp 29–38.https://cibnor.repositorioinstitucional.mx/jspui/handle/1001/1364

(20) Abadía-Cardoso, A.; Damas Aguilar, J. L.; Falcón Rodríguez, J. L.; García De León, F. J.; Garza, J. C.; Ingle de la Mora, G. Primeras gestiones para el cultivo de trucha nativa de la Sierra Madre Occidental: recolecta, determinación de identidad genética y reproducción / First steps for the cultivation of native trout of the Western Sierra Madre: collection, determination of genetic identity and reproduction. In La Trucha Dorada Mexicana; Arturo Ruiz Luna and Francisco García de León: México, 2016; pp 153–172. https://cibnor.repositorioinstitucional.mx/jspui/handle/1001/1364

(19) Williams; Daniel J. Isaak; Imhof, J.; Hendrickson, D. A.; McMillan, J. R. Cold-Water Fishes and Climate Change in North America. Reference Module in Earth Science Systems and Environmental Sciences, Elsevier 2015, 1–10. https://doi.org/10.1016/B978-0-12-409548-9.09505-1.

(18) Ramírez-Huerta, A. L. Modelación y Caracterización Ambiental del Área de Distribución Potencial de Oncorhynchus chrysogaster (Needham y Gard, 1964) en las Cuencas de los Ríos Sinaloa y Culiacán. Master of Science, Centro de Investigación en Alimentación y Desarrollo, A.C.: Mazatlán, Sinaloa, México, 2015.

(17) Abadía-Cardoso, A.; Garza, J. C.; Mayden, R. L.; García de León, F. J. Genetic Structure of Pacific Trout at the Extreme Southern End of Their Native Range. PLOS ONE 2015, 10 (10), e0141775. https://doi.org/10.1371/journal.pone.0141775.

(16) Abadía-Cardoso, A.; Garza, J. C.; Mayden, R. L.; García de León, F. J. Data from: Genetic Structure of Pacific Trout at the Extreme Southern End of Their Native Range. 2015. https://doi.org/10.5061/dryad.4t80s.

(15) Escalante, M.; García-De-León, F.; Dillman, C.; de los Santos Camarillo, A.; George, A.; de los A. Barriga-Sosa, I.; Ruiz-Luna, A.; Mayden, R.; Manel, S. Genetic Introgression of Cultured Rainbow Trout in the Mexican Native Trout Complex. Conserv Genet 2014, 15 (5), 1063–1071. https://doi.org/10.1007/s10592-014-0599-7.

(14) Abadía-Cardoso, A. Genetic Investigation Of The Pacific Trout Complex: From Pedigrees To Phylogenies. Ph.D, University of California Santa Cruz: Santa Cruz, California, 2014.

(13) García-De-León, F. J.; Lozano-Garza, O. A.; Mayden, R. L.; Delgado-Vega, R.; Camarena-Rosales, F.; Ruiz-Campos, G.; Escalante-Sánchez, M. A.; Ruiz-Luna, A.; Río-Portilla, M. Á. D.; Barriga-Sosa, I. de los A.; et al. Isolation and Characterization of 17 Tetranucleotide Microsatellite Loci in the Mexican Golden Trout (Oncorhynchus Chrysogaster, Needham & Gard 1964) Derived from 454 Pyrosequencing. Conservation Genet Resour 2013, 5 (4), 1009–1012. https://doi.org/10.1007/s12686-013-9956-y.

(12) Merrill, W. The Historical Linguistics of Uto-Aztecan Agriculture; 2012; Vol. 54. https://doi.org/10.1353/anl.2012.0017.

(11) Mayden, R. L.; Dillman, C. B.; Espinosa-Pérez, H.; Tomelleri, J. R.; Kuhajda, B. R.; Hendrickson, D. A.; Ruíz-Campos, G.; de los Santos-Camarillo, A. B.; Francisco, G. de L.; Varela-Romero, A.; et al. Evolution and Diversity of Trout Species in the Sierra Madre Occidental of Mexico. In Conserving wild trout, Proceedings of the Wild Trout X Symposium; Bozeman, Montana, USA, 2010; Vol. X, pp 134–144.

(10) Escalante, M. A. Análisis del Paisaje Genético en Poblaciones de Truchas Mexicanas Nativas de la Sierra Madre Occidental. B.S.Geography, Universidad de Guadalajara: Guadalajara, Jalisco, México, 2010.

(9) De Los Santos Camarillo, A. B. Definición de Unidades Taxonómicas En El Complejo de Truchas Del Noroeste de México, Mediante El Análisis de Marcadores Microsatelites. M.S., Centro de Investigaciones Biológicos del Noroeste: La Paz, Baja California, México, 2008.

(8) Camarena-Rosales, F.; Ruiz-Campos, G.; Rosa-Vélez, J.; Mayden, R. L.; Hendrickson, D. A.; Varela-Romero, A.; García de León, F. J. Mitochondrial Haplotype Variation in Wild Trout Populations (Teleostei: Salmonidae) from Northwestern Mexico. Rev.Fish Biol.Fish. 2008, 18 (1), 33–45.

(7) Hendrickson, D. A.; Neely, D. A.; Mayden, R. L.; Anderson, K.; Brooks, J. E.; Camarena-Rosales, F.; Cutter, R. F.; Cutter, L.; De Los Santos Camarillo, A. B.; Ernsting, G. W.; et al. Conservation of Mexican Native Trout and the Discovery, Status, Protection and Recovery of the Conchos Trout, the First Native Oncorhynchus of the Atlantic Drainage in Mexico. In Studies of North American Desert Fishes in Honor of E. P. (Phil) Pister, Conservationist; Lozano-Vilano, M. de L., Contreras-Balderas, A. J., Eds.; Dirección de Publicaciones, Universidad Autónoma de Nuevo León, Facultad de Ciencias Biológicas: Monterrey, Nuevo León, México, 2007; pp 162–201. https://doi.org/10.15781/T2N873K64

(6) Espinosa Pérez, H.; Garcia De León, F. J.; Ruiz Campos, G.; Varela Romero, A.; Barriga Sosa, I. de los Á.; Arredondo-Figueroa, J. L.; Hendrickson, D. A.; Camarena-Rosales, F.; De los Santos Camarillo, A. B. Las Truchas Mexicanas: Peces enigmáticos del Noroeste. Especies: Revista Sobre Conservación y Biodiversidad (una publicación de Naturalia A.C.). Ene-Feb. 2007, pp 8–14.

(5) Mayden, Richard L. SGER: Biodiversity of Native Mexican Trout (Genus Oncorhynchus Spp.) and The Impending Treat of Their Demise by The Exotic Rainbow Trout O. Mykiss Gairdneri (Teleostei: Salmonidae). DEB 0240184; DEB 0240184; 2006; p 33.

(4) Fleming, W.; Forbes, W. Following in Leopold’s Footsteps: Revisiting and Restoring the Rio Gavilan Watershed. Ecological Rest. 2006, 24 (1), 25–31. https://doi.org/10.3368/er.24.1.25.

(3) Camarena-Rosales, F.; Cutter, R.; de Los Santos, A. B.; Espinosa-Pérez, H.; García de León, F. J.; Hendrickson, D. A.; Kuhajda, B. R.; Mayden, R. L.; Neely, D. A.; Pfeifer, F.; et al. Conservation of the Conchos Trout: A White Paper on History of Its Discovery, Report on Its Status, and an Urgent Plea for Action; University of Texas, Austin, Texas, USA, 2006; pp 1–11. http://hdl.handle.net/2152/22233

(2) Forbes, W. Revisiting Aldo Leopold’s “Perfect” Land Health: Conservation and Development in Mexico’s Rio Gavilan. Ph.D., University of North Texas: Denton, Texas, 2004.

(1) Hendrickson, D. A.; Espinosa-Pérez, H.; Findley, L. T.; Forbes, W.; Tomelleri, J. R.; Mayden, R. L.; Nielsen, J. L.; Jensen, B.; Ruiz-Campos, G.; Varela-Romero, A.; et al. Mexican Native Trouts: A Review of Their History and Current Systematic and Conservation Status. Rev.Fish Biol.Fish.2003, 12(2002) (4), 273–316. https://doi.org/10.1023/A:1025062415188.

December 11, 2024, Filed Under: Mexican Trout

Map

Truchas Mexicana’s database of trout samples:

Click here to it on Maps!

December 11, 2024, Filed Under: Mexican Trout

Mexican Trout (Truchas Mexicanas)

Hendrickson’s first samples in 1978 of the undescribed and amazingly diverse species of trout native to the Sierra Madre Occidental (SMO) of northwestern mainland Mexico (Sonora, Chihuahua, Sinaloa and Durango) immediately engaged his interest. In the 1990s he began inviting others to join him on collecting trips and the diverse group of Méxican and U.S. collaborators that now goes by the name “Truchas Mexicanas” quickly took shape. For more than 2 decades now, that group has worked toward improving knowledge of fishes, especially trout, throughout the SMO, collecting specimens needed to describe new species, of which there are clearly many in México.  It’s been a slow process. Travel in this rugged and remote terrain is painfully slow, and trout are inherently difficult to describe (see Turner (2019) for an overview of the difficulties for cutthroat trout – most of the same issues apply here). Hendrickson’s November 2019 presentation at the Desert Fishes Council provides a recent update on what is known of these fishes, and has nice illustrations of them. It reported results of conservation assessment analyses (add a filter on “Land Regions” and “Mesoamerica” to see just the Mexican species) done with the International Union for Conservation of Nature (IUCN). More recent conservation-related publications are mentionec in the Conservation tab to the left). More recently, Joe Tomelleri was interviewed by the U.S. Fish and Wildlife Service’s Fish of the Week Podcast about our work on these species: Liebich, K., & Eroh, G. (n.d.). Fish of the Week: S4:E10—Truchas Mexicanas/Mexico’s native trout (S4:E10). Retrieved March 8, 2024, from https://podcasts.apple.com/us/podcast/truchas-mexicanas-mexicos-native-trout/id1546630514?i=1000647887578.

Other menu links to the left lead to additional information, and our original, now very outdated web page (will open in a new tab), is still available, but we’re in the process of moving that content and updating it here.

December 11, 2024, Filed Under: Mexican Trout

Truchas Mexicanas collaborators and sponsors

We’re in the process of updating the content of this page. Our binational group has grown since the list below was last revised (2007).

Collaborators listed do not include the many local guides whose assistance has been invaluable, but all other individuals who have contributed field and laboratory assistance before 2007 are included here (in alphabetical order):

COLLABORATORS (in alphabetical order)

  • Barriga Sosa, Irene de los Angeles – Laboratorio de Genética y Biología Molecular, Planta Experimental de Producción Acuícola, Departamento de Hidrobiología, División de Ciencias Biológicas y de la Salud, México, Distrito Federal 9340 México
  • Bishop II, Walter – , Durango, Durango 34001 México
  • Bishop III, Walter – EXCURSIONES PANTERA, S.A. DE C.V., Apdo. postal 670 Admón. No. 1, Durango, Durango 34001 México
  • Brandenburg, Howard W. – Museum of Southwestern Biology, Albuquerque, NM  U.S.A.
  • Brooks, James E. – U.S. Fish and Wildlife Service, New Mexico Fishery Resources Office, 3800 Commons Avenue NE, Albuquerque, NM 87109 U.S.A.
  • Camarena Rosales, Faustino – Facultad de Ciencias, Universidad Autónoma de Baja California., Km. 106 Carretera Tijuana – Ensenada, Apdo. Postal 1653, Ensenada, Baja California 22800 México
  • Cutter, Ralph – 14140 Sunrock Rd., Nevada City, California 95959 U.S.A.
  • Daza, Angélica – Instituto de Biología, México, Distrito Federal  México
  • de León, Greta – Mexico North, 231 F. ST., N.E., Washington, DC 20002 USA, Washington, D.C. 20002 México
  • de los Santos Camarillo, Ana Belia – Programa de Planeación Ambiental y Conservación, Mar Bermejo No. 195, Col. Playa Palo de Santa Rita, Apartado postal 128, La Paz, Baja California Sur  México
  • Ernsting, Guy W. – Rt. 2, Box 153, Ellinwood, KS 67526 U.S.A.
  • Espinosa-Pérez, Héctor – Instituto de Biología, Universidad Nacional Autónoma de México, Departamento de Zoología, A. P. 70-153, México, Distrito Federal 04510 México
  • Findley, Lloyd T. – Centro de Investigación en Alimentación y Desarrollo – Unidad Guaymas, Lote 18 Manzana 1, Calle Banamichi, Fracc. Lomas de Cortes, Guaymas, Sonora  México
  • Forbes, William – University of North Texas, Dept. Biological Sciences, Environmental Science Program, P.O. Box 310559, Denton, TX 76203-0559 U.S.A.
  • García de León, Francisco – Programa de Planeación Ambiental y Conservación, Mar Bermejo No. 195, Col. Playa Palo de Santa Rita, Apartado postal 128, La Paz, Baja California Sur  México
  • George, Anna L. – Department of Biology, 3507 Laclede Ave., Saint Louis University, St. Louis, MO 63103-2010 U.S.A.
  • Hatch, John – 8001 E. North Mesa, Box 169, Colonia Juárez, Chihuahua 79932 México
  • Hendrickson, Dean A. – University of Texas, Texas Memorial Museum, Texas Natural History Collection R4000 / PRC 176, 10100 Burnet Rd., Austin, TX 78758-4445 U.S.A.
  • Ingle de la Mora, Genoveva – Instituto Nacional de la Pesca Dirección de Acuacultura Pitagoras 1320 CP 03310 Santa Cruz Atoyac Del. Benito Jáurez, México DF, México
  • Jensen, Buddy – 9750 Granary Place, Washington, D.C. 20136 U.S.A.
  • Kuhajda, Bernard R. – University of Alabama Ichthyological Collection, Department of Biological Sciences, University of Alabama, Tuscaloosa, AL 35487-0345 U.S.A.
  • Lopez-Gonzalez, Celia – CIIDIR IPN Unidad Durango, Sigma s/n, Fracc. 20 de Noviembre II, Durango, Durango 34220 México
  • Mayden, Richard L. – Department of Biology, 3507 Laclede Ave., Saint Louis University, St. Louis, MO 63103-2010 U.S.A.
  • McNyset, Kristina M. – , Lawrence, KS  U.S.A.
  • Merrill, William – Curator of Anthropology, Department of Anthropology, National Museum of Natural History, Smithsonian Institution, 1000 Constitution Ave., N.W, Washington, D.C. 20560-0112 U.S.A.
  • Meyer, Kelly – , Pinetop, AZ  U.S.A.
  • Neely, David A. – Department of Biology, 3507 Laclede Ave., Saint Louis University, St. Louis, MO 63103-2010 U.S.A.
  • Nielsen, Jennifer – USGS, Alaska Science Center, 1011 East Tudor Rd., Anchorage, AK 99703 U.S.A.
  • Nix, Charles – , New York, NY  U.S.A.
  • Pfeiffer, Frank W. – , Albuquerque, NM  U.S.A.
  • Plascencia, Héctor – , Mazatlán, Sinaloa  México
  • Propst, David L. – Conservation Services Division, New Mexico Department of Game and Fish, P.O. Box 25112, Santa Fe, NM 87504 U.S.A.
  • Rosales, Jessica – Texas Natural History Collection, 10100 Burnet, PRC176, Austin, TX 78758 U.S.A.
  • Ruiz, Leslie – Arizona Fishery Resources Office, P.O. Box 39, Pinetop, AZ 85935 U.S.A.
  • Ruiz-Campos, Gorgonio – Facultad de Ciencias, Universidad Autónoma de Baja California., Km. 106 Carretera Tijuana – Ensenada, Apdo. Postal 1653, Ensenada, Baja California 22800 México
  • Salazar Guajardo, Azael – Privado Victoria #735, Col. Eulalia Gtz., , Monterrey, Nuevo León 25500 México
  • Scott, George – Chanticleer Press, 665 Broadway, Suite 1001, New York, NY 10012 U.S.A.
  • Smith, Nick – New Mexico Dept. Fish and Game, U.S.A.
  • Sotelo Holguin, Baltazar – Domicilio Conocido, Norogachi, Chihuahua  México
  • St. Clair, Eric – 222 Winchester Place, St. Louis, MO 63103-2010 U.S.A.
  • Stonkus, Arny – 6521 Palatine Ave N, Seattle, Washington 98103 U.S.A.
  • Tomelleri, Joseph R. – 8436 Meadow Lane, , Leawood, KS 66206 U.S.A.
  • van der Heiden, Albert – Centro de Investigacion en Alimentación y Acuicultura, Unidad Mazatlan, Ap. Postal 711, Mazatlán, Sinaloa 82000 México
  • van der Heiden, Alwin – , Mazatlán, Sinaloa  México
  • Varela Romero, Alejandro – Universidad de Sonora; DICTUS – Depto. de Investigaciones, Cientificas y Tecnologicas, Rosales y Niños Héroes s/n, A.P. 1819, Hermosillo, Sonora 83000 México
  • Villalobos, José Luís – Colección Nacional de Crustáceos, Instituto de Biología, Apartado Postal 70 153, México, Distrito Federal 04510 México
  • Zamora Balbuena, Gerardo – Centro Acuícola del Zarco, SAGARPA (Secretaria de Agricultura, Ganaderia,  Desarrollo Rural, Pesca y Alimentación), México, Distrito Federal  México

Administrative and financial support

Since our first expedition in 1997 we have paid for travel and other expenses with our own personal funds and relied on support from our diverse institutions for equipment and basic supplies. Our 2002 trip (and related genetic analyses), however, was sponsored by the U.S. National Science Foundation.

  • General
    • National Science Foundation (SGER: Biodiversity of Native Mexican Trout (Genus Oncorhynchus spp.) and The Impending Threat of Their Demise by The Exotic Rainbow Trout O. mykiss gairdneri (Teleostei: Salmonidae). DEB 0240184
    • Texas Memorial Museum and Department of Integrative Biology, University of Texas at Austin (for web support and server space for these pages and associated time of webmaster Dean Hendrickson)
  • Conchos Trout
    • World Wildlife Fund, Chihuahua (http://www.worldwildlife.org/)
    • Trout Unlimited (http://www.tu.org)
    • Native Fish Conservancy (http://www.nativefish.org)
    • Mexico-North Research Network (http://www.mexnor.org)

Footer

Fish Collection

UT Home | Emergency Information | Site Policies | Web Accessibility | Web Privacy | Adobe Reader

© The University of Texas at Austin 2025