| Identificación de prioridades y análisis de vacíos y omisiones en la conservación de la biodiversidad de México P Koleff, M Tambutti, IJ March, R Esquivel, C Cantú, A Lira-Noriega, ... Capital natural de México 2, 651-718, 2009 | 104 | 2009 |
| Planeación ecorregional para la conservación marina: Golfo de California y costa occidental de Baja California Sur R Ulloa, J Torre, L Bourillón, A Gondor, N Alcantar Informe final a The Nature Conservancy. Guaymas (México), 2006 | 60 | 2006 |
| Fish community structure in San Agustín Bay, Huatulco, Mexico M Ramirez-Gutierrez, M Tapia-Garcia, E RAMOS-SANTIAGO, R Ulloa Revista Chilena de Historia Natural 80 (4), 419-430, 2007 | 50 | 2007 |
| Bathymetric distribution of chaetognaths and their association with water masses off the coast of Valparaıso, Chile R Ulloa, S Palma, N Silva Deep Sea Research Part I: Oceanographic Research Papers 47 (11), 2009-2027, 2000 | 48 | 2000 |
| Sifonóforos, quetognatos y eufáusidos de los canales australes entre el golfo de Penas y el estrecho de Magallanes S Palma, R Ulloa, L Linacre Cienc. Tecnol. Mar 22, 111-142, 1999 | 37 | 1999 |
| Observed tendencies in maximum and minimum temperatures in Zacatecas, Mexico and possible causes L Brito‐Castillo, SC Díaz Castro, RS Ulloa Herrera International Journal of Climatology: A Journal of the Royal Meteorological …, 2009 | 30 | 2009 |
| SEASONAL CHANGES IN THE BATHYMETRIC DISTRIBUTlON OF SIPHONOPHORES, CHAETOGNATHS AND EUPHAUSllDS ASSOCIATED TO WATER MASSES OFF VALPARAISO, ClDLE (SOUTHEAST PACIFIC) SP Raúl Ulloa, L Línacre, N Silva | 26 | 2000 |
| Phylogenetic Relationships of the Shafted Bonefish Albula Nemoptera (Albuliformes: Albulidae) from the Eastern Pacific Based on Cytochrome B Sequence … E Pfeiler, BG Bitler, R Ulloa Copeia 2006 (4), 778-784, 2006 | 24 | 2006 |
| Molecular identification of the bonefish Albula esuncula (Albuliformes: Albulidae) from the tropical eastern Pacific, with comments on distribution and morphology E Pfeiler, BG Bitler, R Ulloa, AM van der Heiden, PA Hastings Copeia 2008 (4), 763-770, 2008 | 21 | 2008 |
| Determination of net sediment transport patterns in lirquén Harbor, Chile, through grain-size trend analysis: a test of methods F Ríos, R Ulloa, ICS Correa Pesquisas em Geociências. Porto Alegre, RS. Vol. 30, n. 1 (2003), p. 65-81, 2003 | 17 | 2003 |
| Relationship between spatial distribution of chaetognaths and oceanographic conditions off Concepción Bay, Chile R Ulloa, S Palma, N Silva Deep Sea Research Part II: Topical Studies in Oceanography 51 (6-9), 537-550, 2004 | 16 | 2004 |
| Distribución larval de Petrolisthes violaceus, P. laevigatus y Allopetrolisthes angulosus en el plancton de la bahía de R Ulloa, S Palma Revista de Biologia marina y Oceanografia 33 (1), 125-138, 1998 | 12 | 1998 |
| Zoning of the Mejillones Peninsula marine protected coastal area of multiple uses, northern Chile R Ulloa, A Vargas, C Hudson, MM Rivadeneira Latin American Journal of Aquatic Research 41 (3), 506-518, 2013 | 10 | 2013 |
| Eggs and larvae of anchoveta Engraulis ringens off northern Chile during the 1997-1998 El Niño event PM Rojas, MF Landaeta, RU Herrera Revista de biología marina y oceanografía 46 (3), 405-419, 2011 | 10 | 2011 |
| Feeding habits of four species of mesopelagic fishes from the Northern Chilean E Oliva A, R Ulloa H, J Bleck Z Revista de biología tropical 54 (2), 613-622, 2006 | 9 | 2006 |
| Estrategias de sustentabilidad para las principales pesquerías bentónicas de la I y II regiones P Pizarro, L Herrera, M Medina, G Guzmán, J Godoy, J Jaque, D Bravo, ... Informes Técnicos FIP, FIP/IT 45, 584, 2006 | 9 | 2006 |
| Regionalización en base a indicadores ambientales en cuatro áreas marinas de México S Castillo, R Ulloa, D Alvarado Informe Final a la Red Iberoamericana de Ecosistemas. Universidad Autónoma …, 2009 | 7 | 2009 |
| First record of the association of the crab Pinnaxodes gigas (Decapoda: Pinnotheridae) with the geoduck clam Panopea globosa (Bivalvia: Hiatellidae) EJM Emparanza, R Ulloa, A Montiel-Ramos, R Molina-Ocampo Marine Biodiversity Records 4, e40, 2011 | 6 | 2011 |
| Expediente Tecnico ‘Area de conservación regional Morro Sama-Quebrada de Burros’ Tacna R Ulloa, M Zambrano, A Chevarria Perú, 2010 | 6 | 2010 |
| Planeacion para la conservacion marina: Golfo de California y costa occidental de Baja California Sur R Ulloa, J Torre, L Bourillon, A Gonder, N Alcantar Guaymas, MX: Comunidad y Biodiversidad, AC, 2006 | 6 | 2006 |
