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Daniel Abraham Varela Zapata

Investigador

Universidad de Los Lagos

Puerto Montt, Chile

Ecophysiology; Harmful algae. Different approaches (molecular, biochemical, and physiological) to understand the marine photosynthetic organisms respond to environmental drivers, where harmful algae are main focus of study.

Ecología y Biología Evolutiva, UNIVERSIDAD DE CHILE. Chile, 2003

Investigador Full Time

Universidad de Los Lagos

Puerto Montt, Chile

2003 - A la fecha

Investigador Full Time

Universidad de Los Lagos

Puerto Montt, Chile

2003 - A la fecha


Impacts of harmful algal blooms on the aquaculture industry: Chile as a case study Díaz, Patricio A.; Álvarez, Gonzalo; Varela, Daniel; Pérez-Santos, Iván; Díaz, Manuel; Molinet, Carlos.; Seguel, Miriam; Aguilera-Belmonte, Alejandra; Guzmán, Leonardo; Uribe, Eduardo; Rengel, José; Hernández, Cristina; Segura, Cristian; Figueroa, Rosa I. Article Perspectives in Phycology (2019)
Population Genetic Structure at the Northern Edge of the Distribution of Alexandrium catenella in the Patagonian Fjords and Its Expansion Along the Open Pacific Ocean Coast Paredes, Javier; Varela, Daniel; Martínez, Camila; Zúñiga, Andrea; Correa, Karen; Villarroel, Adrián; Olivares, Bianca Article FRONTIERS IN MARINE SCIENCE (2019)
Photosynthesis and nitrogen uptake of the giant kelp Macrocystis pyrifera (Ochrophyta) grown close to salmon farms Varela DA; Hernriquez, LA; Fernandez, PA; Leal, P; Hernandez-Gonzalez, MC; Figueroa, FL; Buschmann AH. Article ISI SCOPUS MARINE ENVIRONMENTAL RESEARCH (2018)
Role of resting cysts in Chilean Alexandrium catenella dinoflagellate blooms revisited Mardones J.I.; Bolch C.; Guzman, L; Paredes, J; Varela D.; Hallegraeff G.M. Article ISI SCOPUS Harmful Algae (2016)
Role of resting cysts in Chilean Alexandrium catenella dinoflagellate blooms revisited Mardones J.I.; Bolch C.; guzman l; Paredes J.; Varela D.; Hallegraeff G.M. Article Harmful Algae (2016)
Ecophysiological plasticity of annual populations of giant kelp (Macrocystis pyrifera) in a seasonal variable coastal environment on the Northern Patagonian Inner Seas in southern Chile". Buschmann A., Pereda S., Varela D., Rodríguez-Maulén J., López A., González-Carvajal L., Schilling M., Henríquez-Tejo E., Hernández-González M. Article J. of Appl. Phycol. (2014)
Ecophysiological plasticity of annual populations of giant kelp (Macrocystis pyrifera) in a seasonally variable coastal environment in the Northern Patagonian Inner Seas of Southern Chile Buschmann AH.; Pereda, SV; Varela DA; Rodriguez-Maulen, J; Lopez A.; Gonzalez-Carvajal, L; Schilling M.; Henriquez-Tejo, EA; Hernandez-Gonzalez, MC Article ISI SCOPUS JOURNAL OF APPLIED PHYCOLOGY (2014)
Seasonal variability of Dinophysis spp. and Protoceratium reticulatum associated to lipophilic shellfish toxins in a strongly stratified Chilean fjord Alves-de-Souza, C; Varela D.; Contreras C.; de La Iglesia, P; Fernández P.; Hipp, B; Hernandez C.; Riobó P; Reguera, B; Franco JM; Diogene, J; Garcia C.; Lagos, N. Article ISI DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY (2014)
Seasonal variability of Dinophysis spp. and Protoceratium reticulatum associated to lipophilic shellfish toxins in a strongly stratified Chilean fjord. Alves-de-Souza C., Varela D., Contreras C., de La Iglesia P.m, Fernández P., Hipp B., Hernández C., Riobó P., Reguera B., Franco J.M., Diogène J., García C. and Lagos, N. Article Deep-Sea Research Part II: Topical Studies in Oceanography (2014)
The status of kelp exploitation and marine agronomy, with emphasis on Macrocystis pyrifera, in Chile. Buschmann, A.H. , S. Prescott; P. Potin, S. Faugeron, J.A. Vásquez, C. Camus, J. Infante, M. C. Hernández-González, A. Gutierrez, D. A. VARELA Article Advances in Botanical Research (2014)
Efecto de diferentes proporciones de nitrógeno/fósforo en el crecimiento y toxicidad de Alexandrium Catenella (Dinoflagellata) Cristi Garrido; M Frang; Daniel Varela Article SCIELO Anales del Instituto de la Patagonia (2012)
Effects of the toxic dinoflagellate Alexandrium catenella on histopathogical and escape responses of the Northern scallop Argopecten purpuratus Hégaret H.; Brokordt K.B.; Gaymer, C.F.; Lohrmann K.B.; Garcia C.; Varela D. Article ISI SCOPUS Harmful Algae (2012)
Effects of the toxic dinoflagellate Alexandrium catenella on histopathogical and escape responses of the Northern scallop Argopecten purpuratus. Hégaret H., Brokordt K. B., Gaymer C. F., Lohrmann K. B., García C, Varela D. Article Harmful Algae (2012)
Growth and toxin profile of Ostreopsis cf. ovata (Dinophyta) from Rio de Janeiro, Brazil Nascimento S.M.; Correa E.V.; Menezes, M; Varela D.; Paredes, J; Morris S, Article ISI SCOPUS Harmful Algae (2012)
Growth and toxin profile of Ostreopsis cf. ovata (Dinophyta) from Rio de Janeiro, Brazil. Nascimento N. M., Corrêa E. V., Menezes M., VARELA D., Paredes J., Morris S. Article Harmful algae (2012)
Infection dynamic of Amoebophryidae on harmful dinoflagellates in a southern Chilean fjord dominated by diatoms. Alves-de-Souza C., Varela D., Iriarte J.L., González H.E., Guillou L. Article Aquatic Microbial Ecology (2012)
Infection dynamics of Amoebophryidae parasitoids on harmful dinoflagellates in a southern Chilean fjord dominated by diatoms Alves-de-Souza, C; Varela D.; Iriarte, J.L. ; González H.E.; Guillou, L Article ISI SCOPUS Aquatic Microbial Ecology (2012)
Intraregional variation among Alexandrium catenella (Dinophyceae) strains from southern Chile: Morphological, toxicological and genetic diversity Varela D.; Paredes, J; Alves-de-Souza, C; Seguel, M.; Sfeir, A; Frangopulos, M. Article ISI SCOPUS Harmful Algae (2012)
Intraregional variation among Alexandrium catenella (Dinophyceae) strains from southern Chile: morphological, toxicological and genetic diversity. Varela D., Paredes J., Alves-de-Souza C., Seguel M., Sfeir A. & Frangópulos M Article Harmful Algae (2012)
IDENTIFICATION OF THE TOXIC ALGA ALEXANDRIUM TAMIYAVANICHI (DINOPHYCEAE) FROM NORTHEASTERN BRAZIL: A COMBINED MORPHOLOGICAL AND rDNA SEQUENCE (PARTIAL LSU AND ITS) APPROACH Menezes, M; Varela D.; Proenca, LAD; Tamanaha, MD; Paredes, J Article ISI SCOPUS Journal of Phycology (2010)
Identification of the toxic alga Alexandrium tamiyavanichi (Dinophyceae) from northeastern Brazil: A convined morphological, toxinological and rDNA sequence (partial LSU and ITS) approach. Menezes M., Varela D., Proença L.A., Tamanaha M.D. & Paredes J. Article J. Phycol (2010)
Light acclimation strategies of three commercially important red algal species Marquardt, R.; Schubert H.; Varela DA; Huovinen, P; Henriquez L.; Buschmann AH. Article ISI SCOPUS Aquaculture (2010)
Light acclimation strategies of three commercially important red algal species. Marquardt, R., Schubert H., D VARELA, Huovinen P., Henríquez L. & Buschmann A. Article Aquaculture (2010)
Traditional vs. Integrated Multi-Trophic Aquaculture of Gracilaria chilensis C. J. Bird, J. McLachlan & E. C. Oliveira: Productivity and physiological performance Abreu, MH; Varela DA; Henriquez L.; villarroel a.; Yarish, C; Sousa-Pinto, I; Buschmann AH. Article ISI SCOPUS Aquaculture (2009)
Traditional vs. Integrated Multi-Trophic Aquaculture of Gracilaria chilensis C. J. Bird, J. McLachlan & E. C. Oliveira: Productivity and physiological performance. Abreu M.E., Varela D., Henríquez L., Villarroel A., Yarish C, Sousa-Pinto I, Buschmann A. Article Aquaculture (2009)
Distribution, abundance and diversity of modern dinoflagellate cyst assemblages from southern Chile (43-54 degrees S) Alves-de-Souza, C; Varela D.; Navarrete F.; Fernández P.; Leal P. Article ISI SCOPUS BOTANICA MARINA (2008)
Distribution, abundance and diversity of modern dinoflagellate cyst assemblages from Southern Chile (43-54° S). Alves de Souza C., VARELA D., Navarrete F.. Leal P. & Fernández, P. Article Botanica Marina (2008)
Opportunities and challenges for the development of an integrated seaweed-based aquaculture activity in Chile: determining the physiological capabilities of Macrocystis and Gracilaria as biofilters Buschmann A.; Varela D.; Hernandez-Gonzalez, M; Huovinen, P Article ISI SCOPUS JOURNAL OF APPLIED PHYCOLOGY (2008)
Opportunities and challenges for the development of an integrated seaweed-based aquaculture activity in Chile: Determining the physiological capabilities of Macrocystis and Gracilaria as biofilters. Buschmann A., Varela D., Hernández-González M. & Huovinen P. Article Journal of Applied Phycology (2008)
Seaweed future cultivation in Chile: perspective and challenges for the future. Buschmann A., Hernandez-González M., Astudillo C. & Varela D. Article Int. J. Environment and Pollution (2008)
A review of the impacts of salmon farming on marine coastal ecosystems in the southeast Pacific. Buschmann A., Riquelme V., Hernández-González M., VARELA D., Jiménez J., Henríquez L., Vergara P., Guíñez R. & Filún L. Article ICES Journal of Marine Science 63: 1338-1345. (2006)
Spatial and temporal variation of photosynthesis in intertidal Mazzaella laminarioides (Bory)Fredericq (Rhodophyta, Gigartinales) Varela DA; Santelices, B.; Correa, JA; Arroyo, MK Article ISI SCOPUS JOURNAL OF APPLIED PHYCOLOGY (2006)
Spatial and temporal variation of photosynthesis in intertidal Mazzaella laminarioides (Rhodophyta, Gigartinales). Varela, D., Santelices, B., Correa, J. & Arroyo, MK Article Journal of Applied Phycology 18:827–838. (2006)
Experimental indoor cultivation of carrageenophytic red alga Gigartina skottsbergii. Buschmann, A., Varela, D., Cifuentes M., Hernández-Ganozález M., Henríquez L., Westermaier R. & Correa J. Article Aquaculture (2004)
Experimental indoor cultivation of the carrageenophytic red alga Gigartina skottsbergii Buschmann AH.; Varela D.; Cifuentes M.; Hernandez-Gonzalez, MD; Henriquez L.; Westermeier R.; Correa, JA Article ISI Aquaculture (2004)
Salinity effects on germination and growth of Prosopis chilensis. Cazebone, C., Vega A., Varela, D. y Cardemil L. Article Revista Chilena de Historia Natural (1999)
Sporeling coalescence and intra-clonal variation in Gracilaria chilensis (Gracilariales, Rhodophyta). Santelices, B. Correa, J., Meneses, I., Aedo, D. y Varela, D. Article Journal of Phycology (1996)
Causes and implications of intraclonal variation in Gracilaria chilensis (Rhodophyta). Causes and implications of intraclonal variation in Gracilaria chilensis (Rhodophyta). Journal of Applied Phycology 7(3): 283 - 290. Article Journal of Applied Phycology (1995)
Regeneration capacity of Gracilaria fragments. Effect of size, age, position and reproductive state. Santelices, B. y Varela, D. 1995. Regeneration capacity of Gracilaria fragments. Effect of size, age, position and reproductive state. Journal of Applied Phycology 7: 283 - 290. Article Journal of Applied Phycology (1995)
Abiotic control of reattachment in Gelidium chilensis (Gelidiales; Rhodophyta). Santelices, B. y Varela, D. 1994. Abiotic control of reattachment in Gelidium chilensis (Gelidiales; Rhodophyta). Journal of Experimental Marine Biology and Ecology 177:145-155. Article Journal of Experimental Marine Biology and Ecology (1994)
Intraclonal variation in the red seaweed Gracilaria chilensis. Santelices, B. y Varela, D. 1993. Intraclonal variation in the red seaweed Gracilaria chilensis. Marine Biology 116: 543-552. Article Marine Biology (1993)
Exhudate from Gracilaria chilensis stimulate settlement of epiphytic ulvoids. Santelices, B. y Varela, D. 1992.Exhudate from Gracilaria chilensis stimulate settlement of epiphytic ulvoids. Hydrobiologia 260/261: 327-333. Article Hydrobiologia (1992)


ECOPHYSIOLOGICAL RESPONSES OF ANNUAL POPULATIONS OF MACROCYSTIS PYRIFERA UNDER WINTER LIGHT CONDITIONS Buschmann AH.; Pereda, SV; Varela DA; Hernandez-Gonzalez, MC; Rodriguez-Maulen, J; Lopez A.; Gonzalez-Carvajal, L Abstract ISI PHYCOLOGIA (2013)
ECOLOGY OF ANNUAL POPULATIONS OF GIANT KELP IN SOUTHERN CHILE Buschmann AH.; Hernandez-Gonzalez, MC; Varela DA; Pereda, SV; Rodriguez-Maulen, JF; Henriquez, LA; Lopez, AP; Maldonado, MA; Graham, MH Abstract ISI JOURNAL OF PHYCOLOGY (2012)


Fortaleciendo las capacidades científicas y académicas del Centro i-mar: Evaluando el efecto de la variabilidad climática sobre las floraciones algales nocivas (FANs) en la región sur austral de Chile Daniel Varela; Patricio Díaz Proyecto (2017)
Resting cyst stage relevance in Alexandrium catenella population dynamic and its bloom events developed in the Chilean southern coast. Daniel Varela Proyecto (2013)
Desarrollo de un sistema para la detección y cuantificación molecular de organismos productores de toxinas paralizantes Mónica Vázquez; Daniel Varela Proyecto (2012)
Variabilidad de la actividad fotosintética en macroalgas las pardas Macrocystis pyrifera y Durvillaea antarctica: evaluación de la variabilidad intra e inter individuales Daniel Varela; Alejandro Buschmann Proyecto (2010)
Expansion of Alexandrium catenella in southern region of Chile: invasion or late recognition of its real distribution? Máximo Frangopulus; Daniel Varela Proyecto (2008)
Nuevas perspectivas en el estudio de la relación entre la microalga tóxica Alexandrium catenella y sus herbívoros: promoción de una nueva área de investigación y contribución a la docencia de postgrado Daniel Varela; Hans Dam Proyecto (0)


The Status of Kelp Exploitation and Marine Agronomy, with Emphasis on Macrocystis pyrifera, in Chile Buschmann AH.; Prescott, S; Potin P.; Faugeron, S; Vasquez, JA; Camus, C.,; Infante, J.; Hernandez-Gonzalez, MC; Gutierrez A.; Varela DA Review ISI SCOPUS SEA PLANTS (2014)
Salmon aquaculture and coastal ecosystem health in Chile: Analysis of regulations, environmental impacts and bioremediation systems Buschmann AH.; Cabello, F; Young, K.; Carvajal, J.; Varela DA; Henriquez L. Review ISI SCOPUS Ocean and Coastal Management (2009)
Seaweed future cultivation in Chile: perspectives and challenges Buschmann AH.; Hernandez-Gonzalez, MD; Varela D. Review ISI INTERNATIONAL JOURNAL OF ENVIRONMENT AND POLLUTION (2008)