@booklet {24, title = {How the trout climbed San Pedro Martir mountain, Baja California}, year = {Enviado}, pages = {11}, abstract = {

reports how he moved native trout all over the San Pedro Martir of Baja California, Mexico starting in about 1929. Unpublished and undated typewritten ms, provided to Lloyd Findley by Peter Moyle in August 2014.

}, keywords = {Mexican trout, Truchas Mexicanas}, author = {Utt, C.E.} } @article {23, title = {Genetic introgression of cultured rainbow trout in the Mexican native trout complex}, journal = {Conservation Genetics}, volume = {15}, year = {2014}, month = {2014/10/01/}, pages = {1063 - 1071}, abstract = {

The Mexican native trout complex is the group of salmonids that naturally has the southernmost distribution in the world. Despite its unique status and evidence of more than 13 distinct lineages, there are only two described species (Oncorhynchus mykiss nelsoni and O. chrysogaster). These fishes are threatened by environmental and anthropogenic factors, most notably the introduction of the exotic species O. mykiss (rainbow trout) for aquaculture. Here we applied population genetics analysis in 1,017 wild and cultured trout to understand the extent of genetic introgression of rainbow trout in Mexican native trout. Present results indicate a high degree of introgression and genetic admixture among introduced rainbow trout and some populations of Mexican native trout, exposing them to loss of genetic diversity. Thus, introduction of exotic trout for aquaculture purposes must be strictly regulated or avoided and we advise the use of native trout for aquaculture.

}, keywords = {Genetic hybridization, genetic introgression, Mexican trout, Northwestern Mexico, rainbow trout, Sierra Madre Occidental, Truchas Mexicanas}, isbn = {1566-0621}, url = {http://dx.doi.org/10.1007/s10592-014-0599-7}, author = {Escalante, MarcoA. and Garc{\'\i}a-De-Le{\'o}n, FranciscoJ. and Dillman, CaseyB. and de los Santos Camarillo, Anabelia and George, Anna and de los A. Barriga-Sosa, Irene and Ruiz-Luna, Arturo and Mayden, RichardL. and Manel, St{\'e}phanie} } @book {20, title = {Cat{\'a}logo de los Peces Dulceacu{\'\i}colas de Baja California Sur}, year = {2012}, month = {2012///}, pages = {169}, publisher = {Instituto Nacional de Ecolog{\'\i}a (INE-Semarnat), M{\'e}xico, D.F.}, organization = {Instituto Nacional de Ecolog{\'\i}a (INE-Semarnat), M{\'e}xico, D.F.}, address = {D.F., M{\'e}xico}, abstract = {

A pesar de que Baja California Sur (BCS) es tipificada como una regi\ón\árida y con pocas corrientes epicontinentales en sus vertientes Pac\ífico y Golfo de California (Tamayo, 1962), existen numerosos cuerpos de agua perennes conocidos como \“oasis\” que representan eocosistemas mes\ófilos relictos de afinidad subtropical (Axelrod, 1948, 1979; Grismer y McGuire, 1993). Estos oasis son habitados por peces con diferentes historias biogeogr\áficas y evolutivas, siendo escenarios de endemismos aut\óctonos (Fundulus lima y Gobiesox juniperoserrai) o de colonizaci\ón v\ía fluvial por especies eurihalinas de estirpe marina (Follett, 1960; Espinosa P\érez y Castro-Aguirre, 1996; Ruiz-Campos et al., 2003). En t\érminos ecogeogr\áficos, no hay peces dulceacu\ícolas de origen primario o secundario en BCS (Follett, 1960) y varios factores causales han sido propuestos para explicar tal situaci\ón: (1) discontinuidad paleohidrol\ógica entre los arroyos del sur de California y de la pen\ínsula de Baja California durante la disminuci\ón del nivel del mar en el Pleistoceno tard\ío; (2) la prolongada aridez prevaleciente desde el inicio del Holoceno ha frenado la dispersi\ón de peces por v\ía estuarina a trav\és de la costa peninsular; (3) lo abrupto de gran parte de la costa oriental ha evitado la formaci\ón de lagunas y complicado la dispersi\ón; y (4) el Golfo de California act\úa como una barrera para la entrada de peces dulceacu\ícolas desde Mesoam\érica. ● Peces dulceacu\ícolas de Baja California Sur Follett (1960) report\ó 21 especies dulceacu\ícolas nativas para BCS, sin ning\ún caso de introducci\ón de especies ex\óticas. Posteriormente, Ruiz-Campos y Contreras-Balderas (1987) incrementaron este n\úmero a 28, aportando primeros registros de tres especies perif\éricas espor\ádicas (Harengula thrissina, Hypsopsetta guttulata y Achirus mazatlanus) y tres ex\óticas (Gambusia affinis, Poecilia reticulata y Xiphophorus maculatus). Muchos de los registros referidos por ambos estudios fueron procedentes de las partes bajas de los r\íos Mueleg\é y San Jos\é del Cabo, pero sin evidencia

}, keywords = {Mexican trout}, isbn = {978-607-7908-65-4}, url = {http://www2.ine.gob.mx/publicaciones/consultaPublicacion.html?id_pub=659}, author = {Ruiz-Campos, Gorgonio} } @article {16, title = {Mitochondrial haplotype variation in wild trout populations (Teleostei: Salmonidae) from northwestern Mexico}, journal = {Reviews in Fish Biology and Fisheries}, volume = {18}, year = {2008}, month = {2008///}, pages = {33 - 45}, abstract = {

The variation and composition of Mexican wild trout mitochondrial DNA haplotypes throughout northwestern Mexico was determined by means of polymerase chain reaction-restriction fragment polymorphism analysis (PCR-RFLP), of one region of mitochondrial DNA between cytochrome b and the D-loop. This analysis was based on 261 specimens taken in 12 basins and four hatcheries from northwestern Mexico. From 23 haplotypes, 15 wild trout haplotypes were identified and classified in four groups: (1) one restricted to Nelson\&$\#$39;s trout (Oncorhynchus mykiss nelsoni), (2) four restricted to R\¡o Mayo and R\¡oYaqui trout (O. mykiss sspp.), (3) six to Mexican golden trout (O. chrysogaster) with two subgroups, and (4) one exclusive to R\¡o Piaxtla trout. Distributions of native haplotypes broadly overlap the distribution of non-native hatchery rainbow trout reflecting the historical management of introductions of exotic rainbow trout and the artificial transference of these trout among basins.

}, keywords = {Chihuahua, Conchos, Cytochrome b, endangered, Mayo, Mexican trout, Oncorhynchus, Oncorhynchus mykiss, rainbow trout, Salmonidae, Truchas Mexicanas}, url = {⬚d:\users\dean_h\reprints in pdf or other\Camarena_2008_Mt_haplotype_Mexican_trout.pdf⬚}, author = {Camarena-Rosales, Faustino and Ruiz-Campos, Gorgonio and Rosa-V{\'e}lez, Jorge and Mayden, Richard L. and Hendrickson, Dean A. and Varela-Romero, Alejandro and Garc{\'\i}a de Le{\'o}n, Francisco J.} } @article {6, title = {Fishes of the R{\'\i}o Yaqui Basin, M{\'e}xico and United States}, journal = {Journal of the Arizona-Nevada Academy of Science}, volume = {15}, year = {1980}, month = {1980///}, pages = {65 - 106}, keywords = {Ictalurus pricei, Mexican trout}, isbn = {01938509}, url = {http://www.jstor.org/stable/40025038}, author = {Hendrickson, Dean A. and Minckley, W. L. and Miller, Robert R. and Siebart, Darrel J. and Minckley, Patricia Haddock} } @article {3, title = {Rainbow trout in Mexico and California with notes on the cutthroat series}, journal = {University of California Publications in Zoology}, volume = {67(1)}, year = {1959}, month = {1959///}, pages = {1 - 124}, keywords = {Mexican trout, Truchas Mexicanas}, author = {Needham, P.R. and Gard, R.} } @inbook {7, title = {Geography of western North American freshwater fishes: description and relations to intracontinental tectonism}, booktitle = {Zoogeography of Western North American Freshwater Fishes}, year = {1986}, month = {1986///}, pages = {519 - 613}, publisher = {John Wiley and Sons}, organization = {John Wiley and Sons}, address = {New York, NY}, author = {Minckley, W.L. and Hendrickson, Dean A. and Bond, C.E.}, editor = {Hocutt, C.H. and Wiley, E.O.} } @article {11, title = {Mexican native trouts: a review of their history and current systematic and conservation status}, journal = {Reviews in Fish Biology and Fisheries}, volume = {12(2002)}, year = {2003}, month = {2003///}, pages = {273 - 316}, abstract = {

While biologists have been aware of the existence of native Mexican trouts for over a century, they have received little study. The few early studies that did much more than mention their existence began in the 1930s and continued into the early 1960s, focusing primarily on distributional surveys and taxonomic analyses. Starting in the 1980s the Baja California rainbow trout became the subject of more detailed studies, but very little remains known of mainland trouts of the Sierra Madre Occidental. We review earlier studies and report on our own collections and observations made between 1975 and 2000. We present newly discovered historical evidence that leads us to conclude that a {\textquoteleft}{\textquoteleft}lost\&$\#$39;\&$\#$39; cutthroat trout, a lineage not previously known from Mexico, was collected more than a century ago from headwaters of the R\¡o Conchos (a major tributary of the Rio Grande (= R\¡o Bravo)), a basin not previously considered to harbor a native trout. We review the last century of regional natural resource management and discuss our own observations of trout habitats. Impacts of logging, road building and overgrazing are widespread and expanding. Many streams suffer from heavy erosion, siltation and contamination, and though long-term hydrologic data are generally not available, there is evidence of decreased discharge in many streams. These problems appear related to region-wide land management practices as well as recent regional drought. Trout culture operations using exotic rainbow trout have rapidly proliferated throughout the region, threatening genetic introgression and/or competition with native forms and predation on them. Knowledge of distribution, abundance, relationships and taxonomy, not to mention ecology and population biology, of native trouts of the Sierra Madre Occidental remains inadequate. Vast areas of most mainland drainages are still unexplored by fish collectors, and even rudimentary information regarding basic biology, ecology and population structure of stocks remains lacking. Concentrated exploration, research and management of this long overlooked and undervalued resource are all urgently needed. The history of natural resources exploitation that placed so many native trouts of the western United States on threatened and endangered species lists is repeating itself in the Sierra Madre Occidental. Without concerted action and development of region-wide socio-economic solutions for current, largely non-sustainable resource management practices, native Mexican trout gene pools will soon be in grave danger of extinction.

}, keywords = {Baja California, Chihuahua, Conchos, Durango, genetic introgression, Onchorchynchus mykiss, Onchorynchus, rainbow trout, Rio Grande, Sierra Madre Occidental, Sinaloa, Sonora, Truchas Mexicanas}, author = {Hendrickson, Dean A. and Espinosa-P{\'e}rez, H. and Findley, L.T. and Forbes, W. and Tomelleri, J.R. and Mayden, R.L. and Nielsen, J.L. and Jensen, B. and Ruiz-Campos, Gorgonio and Varela-Romero, A. and Van Der Heiden, A.M. and Camarena, F. and Garc{\'\i}a de Le{\'o}n, Francisco J.} }