Royal Ontario Museum

Collections & Research Staff

Hernán López-Fernández
Associate Curator

Licenciate in Biology, Universidad de Los Andes in Mérida, Venezuela, 1998
Ph.D., Texas A&M University, 2004
Postdoctoral Fellow, Integrative Biology (Dan Bolnick Lab), University of Texas at Austin, 2005
Postdoctoral Research Associate, EEB program (Kirk Winemiller lab), Texas A&M University, 2006

Hernán López-Fernández is Associate Curator of Ichthyology in the Department of Natural History at the ROM.

Hernán was born in Montevideo, Uruguay but lived most of his life in Venezuela. His fascination with fishes started at an early age when his father bought him the first of many aquariums. A few years later, he discovered cichlid fishes and decided to dedicate his career to studying them. For his B.Sc., he studied the feeding ecology of cichlids of the genus Satanoperca with Donald Taphorn. He then moved to the United States to obtain his Ph.D., studying the phylogeny of geophagine cichlids under Kirk Winemiller and Rodney Honeycutt. Following that, he went to the University of Texas at Austin as a postdoctoral fellow in Daniel Bolnick’s lab, to work on the genetics of speciation in North American sunfishes in the genus Lepomis. In 2006, he returned to Texas A&M as a postdoctoral fellow funded by the US National Science Foundation to continue studying phylogenetics, adaptive radiation and convergent evolution in cichlids from South and Central America.

As an Associate Curator at the ROM, Hernán's research focuses on the evolutionary biology of South and Central American cichlids. The freshwaters of South and Central America are estimated to harbor well over 6,000 species of fishes; more than any other biogeographic region on Earth. Among this great diversity, cichlid fishes are remarkable for their morphological, ecological and behavioral diversity. Although cichlids are well-known models of adaptive evolution in lakes, little is known about their diversification in rivers. Hernán combines field and laboratory research in systematics, biogeography and evolutionary biology to study the radiations of American cichlids as models of the evolutionary history of Neotropical fishes. Comparative evolutionary studies of cichlids and other groups should provide a powerful tool to understand the origin of the most diverse freshwater fish fauna on the planet.

Recent Publications

In press
Willis, S.C., H. López-Fernández, C.G. Montaña, I.P. Farias, and G. Orti. "Species-level phylogeny of 'Satan's perches' based on discordant gene trees (Teleostei: Cichlidae: Satanoperca Günther 1862)." Molecular Phylogenetics and Evolution.

2012
López-Fernández, H., K.O. winemiller, C.G. Montaña, R.L. Honeycutt. "Diet-morphology correlations in the radiation of South American geophagine cichlids (Perciformes: Cichlidae: Cichlinae)" PLoS ONE, 7(4): e33997. doi:10.1371/journal.pone.0033997 (PDF)

2011
Arbour, J. and H. López-Fernández. "Guianacara dacrya, a new species from the Rio Branco and Essequibo River drainages of the Guiana Shield (Cichlidae, Perciformes)." Neotropical Ichthyology, 9: 87-96. (PDF)

2011
López-Fernández, H. and J.S. Albert. "Paleogene radiations." In Historical Biogeography of Neotropical Freshwater Fishes, edited by J. Albert, and R.E. Reis. University of California Press, pp. 105-117.

2011
Hulsey, C.D. and H. López-Fernández. "Nuclear Central America." In Historical Biogeography of Neotropical Freshwater Fishes, edited by J. Albert, and R.E. Reis. University of California Press, pp. 279-291.

2010
Taphorn, D.C., J.W. Armbruster, H. López-Fernández, and C.R. Bernard. “Description of Neblinichthys brevibracchium and N. echinasus from the upper Mazaruni River, Guyana (Siluriformes: Loricariidae), and recognition of N. roraima and N. yaravi as distinct species.” Neotropical Ichthyology, 8: 615-624.

2010
López-Fernández, H., K.O. Winemiller, and R.L. Honeycutt. "Multilocus phylogeny and rapid radiations in Neotropical cichlid fishes (Perciformes: Cichlidae: Cichlinae)." Molecular Phylogenetics and Evolution, 55: 1070-1086.

2008
Winemiller, K.O., H. Lopez-Fernandez, D.C. Taphorn, L. Nico, and A. Barbarino. "Fish assemblages of the Casiquiare river, a corridor and zoogeographic filter for dispersal between the Orinoco and Amazon basins." Journal of Biogeography, 35: 1551-1563.

2008
Bolnick, D.I., M. Turelli, H. Lopez-Fernandez, P.C. Wainwright, and T.J. Near. "Accelerated mitochondrial evolution and 'Darwin's corollary': Assymetric viability of reciprocal F1 hybrids in centrarchid fishes." Genetics, 178: 1037-1048. (PDF)

2007
Lopez-Fernandez H. and D.I. Bolnick. "What causes partial F1 hybrid viability? Incomplete penetrance versus genetic variation." PLoS ONE 2: e1294. (PDF)

2007
Correa, S.B., K.O. Winemiller, H. Lopez-Fernandez, and M. Galetti. "Seed consumption and dispersal by fishes: evolutionary perspectives." BioScience, 57: 748-756. (PDF)

Publications List ( PDF)

Research Projects
Multilocus phylogeny and historical biogeography of Neotropical Cichlids
Adaptive radiation, convergent evolution and speciation in Neotropical cichlids.
Freshwater fish diversity of Guyana.

ROM Images
Fishes

Other Links
Three new South American Fish identified
Curriculum Vitae (PDF)

Contact Information
Royal Ontario Museum
Department of Natural History
100 Queen's Park
Toronto, ON
M5S 2C6

Tel: 416.586.7948
Fax: 416.586.5553
E-mail: Natural History

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In press	Willis, S.C., H. López-Fernández, C.G. Montaña, I.P. Farias, and G. Orti. "Species-level phylogeny of 'Satan's perches' based on discordant gene trees (Teleostei: Cichlidae: Satanoperca Günther 1862)." Molecular Phylogenetics and Evolution.
2012	López-Fernández, H., K.O. winemiller, C.G. Montaña, R.L. Honeycutt. "Diet-morphology correlations in the radiation of South American geophagine cichlids (Perciformes: Cichlidae: Cichlinae)" PLoS ONE, 7(4): e33997. doi:10.1371/journal.pone.0033997 (PDF)
2011	Arbour, J. and H. López-Fernández. "Guianacara dacrya, a new species from the Rio Branco and Essequibo River drainages of the Guiana Shield (Cichlidae, Perciformes)." Neotropical Ichthyology, 9: 87-96. (PDF)
2011	López-Fernández, H. and J.S. Albert. "Paleogene radiations." In Historical Biogeography of Neotropical Freshwater Fishes, edited by J. Albert, and R.E. Reis. University of California Press, pp. 105-117.
2011	Hulsey, C.D. and H. López-Fernández. "Nuclear Central America." In Historical Biogeography of Neotropical Freshwater Fishes, edited by J. Albert, and R.E. Reis. University of California Press, pp. 279-291.
2010	Taphorn, D.C., J.W. Armbruster, H. López-Fernández, and C.R. Bernard. “Description of Neblinichthys brevibracchium and N. echinasus from the upper Mazaruni River, Guyana (Siluriformes: Loricariidae), and recognition of N. roraima and N. yaravi as distinct species.” Neotropical Ichthyology, 8: 615-624.
2010	López-Fernández, H., K.O. Winemiller, and R.L. Honeycutt. "Multilocus phylogeny and rapid radiations in Neotropical cichlid fishes (Perciformes: Cichlidae: Cichlinae)." Molecular Phylogenetics and Evolution, 55: 1070-1086.
2008	Winemiller, K.O., H. Lopez-Fernandez, D.C. Taphorn, L. Nico, and A. Barbarino. "Fish assemblages of the Casiquiare river, a corridor and zoogeographic filter for dispersal between the Orinoco and Amazon basins." Journal of Biogeography, 35: 1551-1563.
2008	Bolnick, D.I., M. Turelli, H. Lopez-Fernandez, P.C. Wainwright, and T.J. Near. "Accelerated mitochondrial evolution and 'Darwin's corollary': Assymetric viability of reciprocal F1 hybrids in centrarchid fishes." Genetics, 178: 1037-1048. (PDF)
2007	Lopez-Fernandez H. and D.I. Bolnick. "What causes partial F1 hybrid viability? Incomplete penetrance versus genetic variation." PLoS ONE 2: e1294. (PDF)
2007	Correa, S.B., K.O. Winemiller, H. Lopez-Fernandez, and M. Galetti. "Seed consumption and dispersal by fishes: evolutionary perspectives." BioScience, 57: 748-756. (PDF)