Varela Zapata, Daniel Abraham

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Varela Zapata, Daniel Abraham

Doctor Ciencias Mención Ecología y Biología Evolutiva

Posiciones

Investigador , Centro de Investigación y Desarrollo de Recursos y Ambientes Costeros, i-Mar

Áreas de investigación

Enfoque geográfico

Chile País

miembro de

Centro de Investigación y Desarrollo de Recursos y Ambientes Costeros, i-Mar 2003 -

publicaciones seleccionadas

artículo académico
- Phytoplankton detection study through hyperspectral signalling in the Patagonian fjords. Ocean Science. 21:2379-2395. 2025
- Are Alexandrium catenella Blooms Spreading Offshore in Southern Chile? An In-Depth Analysis of the First PSP Outbreak in the Oceanic Coast. Fishes. 9:340. 2024
- Are yessotoxins an emerging problem in Chile? Context and perspectives following the first report of YTX levels exceeding the regulatory limit in the Patagonian fjord system. Environmental Pollution. 361:124844. 2024
- Deep Turbulence as a Novel Main Driver for Multi-Specific Toxic Algal Blooms: The Case of an Anoxic and Heavy Metal-Polluted Submarine Canyon That Harbors Toxic Dinoflagellate Resting Cysts. Microorganisms. 12:2015. 2024
- Experimental transplantation of Durvillaea incurvata in southern Chile: implication for its restocking. Latin American Journal of Aquatic Research. 52:174-180. 2024
- Contrasting genetic diversity and strong genetic break between the Chilean and Japanese strains of the toxic dinoflagellate <i>Alexandrium catenella</i> (Dinophyceae) as revealed by newly developed microsatellite markers. Plankton and Benthos Research. 18:55-59. 2023
- Proteomic and toxicological analysis of the response of dinoflagellate Alexandrium catenella to changes in NaNO3 concentration. Harmful Algae. 125:102428. 2023
- Modelling the Spatial and Temporal Dynamics of Paralytic Shellfish Toxins (PST) at Different Scales: Implications for Research and Management. Toxins. 14:786. 2022
- Latitudinal Variation in the Toxicity and Sexual Compatibility of Alexandrium catenella Strains from Southern Chile. Toxins. 13:900. 2021
- Genetic population structure of the toxigenic dinoflagellate <i>Alexandrium catenella</i> in the Patagonian Fjords System, southern Chile. Revista de biología marina y oceanografía. 55:26-36. 2020
- Growth performance of Alexandrium catenella from the Chilean fjords under different environmental drivers: plasticity as a response to a highly variable environment. Journal of Plankton Research. 42:119-134. 2020
- 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. Frontiers in Marine Science. 5. 2019
- Photosynthesis and nitrogen uptake of the giant kelp Macrocystis pyrifera (Ochrophyta) grown close to salmon farms. Marine Environmental Research. 135:93-102. 2018
- Role of resting cysts in Chilean Alexandrium catenella dinoflagellate blooms revisited. Harmful Algae. 55:238-249. 2016
- 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. Journal of Applied Phycology. 26:837-847. 2014
- Seasonal variability of Dinophysis spp. and Protoceratium reticulatum associated to lipophilic shellfish toxins in a strongly stratified Chilean fjord. Deep Sea Research Part II: Topical Studies in Oceanography. 101:152-162. 2014
- Effects of the toxic dinoflagellate Alexandrium catenella on histopathogical and escape responses of the Northern scallop Argopecten purpuratus. Harmful Algae. 18:74-83. 2012
- Growth and toxin profile of Ostreopsis cf. ovata (Dinophyta) from Rio de Janeiro, Brazil. Harmful Algae. 13:1-9. 2012
- Infection dynamics of Amoebophryidae parasitoids on harmful dinoflagellates in a southern Chilean fjord dominated by diatoms. Aquatic Microbial Ecology. 66:183-197. 2012
- Intraregional variation among Alexandrium catenella (Dinophyceae) strains from southern Chile: Morphological, toxicological and genetic diversity. Harmful Algae. 15:8-18. 2012
- IDENTIFICATION OF THE TOXIC ALGA ALEXANDRIUM TAMIYAVANICHI (DINOPHYCEAE) FROM NORTHEASTERN BRAZIL: A COMBINED MORPHOLOGICAL AND rDNA SEQUENCE (PARTIAL LSU AND ITS) APPROACH¹. Journal of Phycology. 46:1239-1251. 2010
- Light acclimation strategies of three commercially important red algal species. Aquaculture. 299:140-148. 2010
- Salmon aquaculture and coastal ecosystem health in Chile: Analysis of regulations, environmental impacts and bioremediation systems. Ocean & Coastal Management. 52:243-249. 2009
- Traditional vs. Integrated Multi-Trophic Aquaculture of Gracilaria chilensis C. J. Bird, J. McLachlan & E. C. Oliveira: Productivity and physiological performance. Aquaculture. 293:211-220. 2009
- Distribution, abundance and diversity of modern dinoflagellate cyst assemblages from southern Chile (43–54° S). Botanica Marina. 51:399-410. 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. Journal of Applied Phycology. 20:571-577. 2008
- Seaweed future cultivation in Chile: perspectives and challenges. International Journal of Environment and Pollution. 33:432. 2008
- A review of the impacts of salmonid farming on marine coastal ecosystems in the southeast Pacific. ICES Journal of Marine Science. 63:1338-1345. 2006
- Spatial and temporal variation of photosynthesis in intertidal Mazzaella laminarioides (Bory)Fredericq (Rhodophyta, Gigartinales). Journal of Applied Phycology. 18:827-838. 2006
- Experimental indoor cultivation of the carrageenophytic red alga Gigartina skottsbergii. Aquaculture. 241:357-370. 2004
- SPORELING COALESCENCE AND INTRACLONAL VARIATION IN GRACILARIA CHILENSIS (GRACILARIALES, RHODOPHYTA)¹. Journal of Phycology. 32:313-322. 1996
- Causes and implications of intra-clonal variation in Gracilaria chilensis (Rhodophyta). Journal of Applied Phycology. 7:283. 1995
- Abiotic control of reattachment in Gelidium chilense (Montagne) Santelices & Montalva (Gelidiales; Rhodophyta). Journal of Experimental Marine Biology and Ecology. 177:145-155. 1994
- Exudates from Gracilaria chilensis stimulate settlement of epiphytic ulvoids. Hydrobiologia. 260-261:327-333. 1993
- Intra-clonal variation in the red seaweed Gracilaria chilensis. Marine Biology. 116:543-552. 1993
capítulo
- The Status of Kelp Exploitation and Marine Agronomy, with Emphasis on Macrocystis pyrifera, in Chile. 161-188. 2014

Resumen de investigación

FONDEF
Año de concurso: 2020

investigador principal en

Desarrollo de una herramienta tecnológica que permita el uso de huellas hiperespectrales oceánicas para la detección remota de algas nocivas (FAN). FONDEF ID20I10369 2022 - 2024

nombre completo

Daniel Abraham Varela Zapata

correo electrónico principal

dvarela@ulagos.cl

Publicaciones en VIVO

Mapa de la ciencia

Red de Coinvestigador

Información de Contacto

dvarela@ulagos.cl