Fadia Tala

Scopus Publications

Traveling Seaweeds—Seasonal and Latitudinal Diversity of Epiphytic Seaweeds on Stranded Rafts of the Floating Seaweed Durvillaea incurvata Along the Chilean Coast
Boris A. López, Ricardo Jeldres, Macarena Bravo, David Jofré-Madariaga, Camila Latapiat, et al.
Journal of Marine Science and Engineering, 2026
Floating seaweeds can be an effective dispersal vector for non-buoyant seaweeds. An under-explored aspect is the examination of seaweed rafts and their non-buoyant seaweed community after the floating journey ends. In this study, we analyzed 476 entire stranded specimens of the floating seaweed Durvillaea incurvata and their associated epiphytes, which were collected during winters and summers of 2023–2025 at four sites along the continental coast of Chile (between 31° S and 41° S). A total of 57 species of epiphytic seaweeds were found, with a higher predominance of Rhodophyta (71.9%). The most representative morpho-functional group was coarsely branched (29.1%). The species Lessonia spicata, Antithamnionella ternifolia, Corallina chilensis, Gelidium rex, G. chilense, and G. lingulatum were found frequently, and 67% of all epiphyte specimens found were reproductive. A higher taxonomic richness of epiphytes was observed at the southern-central sites compared to the northern site, being higher in summer than in winter. These results confirm that epiphytes associated with floating seaweeds are common and that many of these have reproductive structures. Co-occurrence analysis suggests that interactions among morpho-functional groups of epiphytes facilitate long-distance dispersal events. Future studies should assess the physiological viability and ability to reproduce of epiphytes after extensive floating journeys. This would contribute to understanding the effectiveness of rafting dispersal by floating seaweeds on the connectivity of raft-associated algal populations.
Influence of environmental seasonality and marine pollution on the phenology of the kelp Lessonia spicata (Phaeophyceae)
Geraldine Véliz, Andrés Meynard, Benjamín Pinilla-Rojas, Javier Vera-Duarte, Fadia Tala, et al.
Journal of Applied Phycology, 2025
Influence of intensified upwelling on two different Corallina officinalis Linneo 1758 populations by exploring direct and indirect effects
Eva Rothäusler, Laura Ramajo, Lilly-Mo Kuhn, Fadia Tala, Alejandro B. Rodriguez-Navarro, et al.
Marine Environmental Research, 2025
Kelps on the move: Potential future distribution areas in the face of climate change, on the Pacific coast of South America
Milen Duarte, Natalia Sanhueza, Julio A. Vásquez, Fadia Tala, Alejandra V. González
Plos One, 2025
Kelp forests are critical marine ecosystems that offer key services such as habitat, coastal protection, carbon sequestration, and support for fisheries. Along the temperate Pacific coast of South America, however, these seaweeds have historically been subjected to intense exploitation pressure, given their value as an economic resource. Additionally, they are impacted by oceanographic and climatic factors such as ENSO (El Niño-Southern Oscillation) event and ongoing climate change. The combined effects of these stressors pose a significant threat to their biomass and geographic distribution. Species distribution models under four representative concentration pathways for 2050 were used to assess the current and future potential distribution of two endemic intertidal kelp species, Lessonia berteroana and Lessonia spicata, which represent two of the four primary kelp species targeted by regional fisheries in the region. This approximation allows us to identify future areas of persistence (retained), retreat (lost), and expansion (gained). The results show that the environmental variables that mainly affected the potential distribution were salinity in L. berteroana and surface water temperature for L. spicata. The predictive models suggest that for L. berteroana, the lost area could reach 60.6%, and retained areas could account for 31.6% of the current area. Similarly, for L. spicata, the models indicate a potential loss of 58.6%, with retained areas comprising approximately 58.2% of the current area. Therefore, models predict a significant contraction could lead to the local disappearance of Lessonia species between 14° S and 25° S, profoundly altering coastal ecosystems and diminishing the critical ecosystem services they provide. Our modeling results underscore the urgent need for informed management and conservation strategies for kelp forests, which serve as vital ecosystem engineers. This research is especially critical in the face of climate change and ongoing anthropogenic pressures such as overexploitation. The study provides a robust scientific foundation for proactive measures to mitigate kelp forest decline and preserving their invaluable ecosystem functions along the Pacific coast of South America.
Toward the valorization of Ulva biomass from Chile: Analysis of the bioactive polysaccharide and chemical profile of unprocessed and residual biomass of Ulva uncialis
Karina Véliz, Roberto Abdala-Díaz, Nancy Chandía, Pedro Toledo, Daniel Álvarez-Torres, et al.
Food Chemistry, 2025
Chemical composition of the harvested subtidal kelp, Lessonia trabeculata, from a coastal location in central Chile
Camila Gonzalez-Alonso-de-Linaje, Pippa Moore, Dan Smale, Louise Delion, Catalina S. Ruz, et al.
Algal Research, 2025
Latitudinal changes in blubber fatty acids of the South American sea lion along the Southeast Pacific Coast
Alicia I. Guerrero, Tracey L. Rogers, Carmen Barrios-Guzmán, Heide Heredia-Azuaje, Fadia Tala, et al.
Marine Environmental Research, 2025
Environmental and local habitat variables as predictors of trophic interactions in subtidal rocky reefs along the SE Pacific coast
Catalina A. Musrri, Alistair G. B. Poore, Oscar Pino, Nicolás Riquelme, Wolfgang B. Stotz, et al.
Ecography, 2025
Temperature generally drives latitudinal patterns in the strength of trophic interactions, including consumption rates. However, local community and other environmental conditions might also affect consumption, disrupting latitudinal gradients, which results in complex large‐scale patterns. This study assessed the relative effect of environmental variables and local consumer communities on predation and herbivory along more than 22 degrees of latitude (∼2500 km) of the Chilean coast. Consumption assays with animal prey (porcellanid crabs and squidpops) and the kelp Lessonia spp. were used to assess predation (after 2 h and 24 h) and herbivory (after 24 h) at 12 study sites where important environmental variables (seawater characteristics, habitat features and consumer community characteristics) were measured. For each prey type, we aimed to identify the variables that best explained variation in consumption. Predation rates were positively related to temperature, but also with dissolved oxygen and higher salinities, all variables that are thought to favour higher metabolic rates in consumers. Local habitat characteristics (i.e. higher bare rock cover) negatively affected predation rates on porcellanid crabs, likely because large predatory fish feeding on crabs (which also explain higher crab consumption) are less abundant in seaweed‐free areas (kelp or understory algae). There was a decrease in herbivory with higher understorey algae cover, possibly due to the presence of alternative, more palatable seaweeds. The fact that the offered kelp blades were not consumed at latitudes where phlorotannin contents were very high suggests a relationship between consumption and seaweed palatability. Since many of the explanatory variables did not show a strict latitudinal trend, large‐scale consumption patterns can vary with sources of local variation that affect the consumer metabolism, foraging efficiency and consumption pressure.
Alginate Oligosaccharides Protect Gastric Epithelial Cells against Oxidative Stress Damage through Induction of the Nrf2 Pathway
Samantha Acevedo, Alejandra A. Covarrubias, Paola Haeger, Floria Pancetti, Fadia Tala, et al.
Antioxidants, 2024
Gastric diseases represent a significant global public health challenge, characterized by molecular dysregulation in redox homeostasis and heightened oxidative stress. Although prior preclinical studies have demonstrated the cytoprotective antioxidant effects of alginate oligosaccharides (AOSs) through the Nrf2 pathway, whether such mechanisms apply to gastric diseases remains unclear. In this study, we used the GES-1 gastric cell line exposed to hydrogen peroxide (H2O2) as a damage model to investigate the impact of AOS on cell viability and its associated mechanisms. Our results revealed that pre-incubation with AOS for either 4 h or 24 h significantly improved the viability of GES-1 cells exposed to H2O2. In addition, AOS reduced the intracellular ROS levels, activating the Nrf2 signaling pathway, with increased Nrf2 protein and mRNA expression and a significant upregulation of the target genes HO-1 and NQO1. The activation of Nrf2 was correlated with decreased Keap1 protein expression and an increased level of the autophagy protein p62/SQSTM1, suggesting the activation of Nrf2 through a noncanonical pathway. This study suggests that AOS is a potential treatment for protecting gastric epithelial cells from oxidative stress by activating the p62/SQSTM1-Keap1-Nrf2 axis and laying the foundation for future investigations about its specific therapeutic mechanisms.
Seasonal growth rates of gooseneck barnacles (Lepas spp.): Proxies for floating time of rafts in marine ecosystems
Henry Goehlich, Guillermo Luna-Jorquera, André-Philippe Drapeau Picard, José Pantoja, Fadia Tala, et al.
Marine Biology, 2024
Heterozostera nigricaulis from the south-East Pacific coast of Chile: First insights into its physiology and growth
Eva Rothäusler, Clementina Paz-Soldan Carbone, Boris A. López, Fadia Tala
Marine Environmental Research, 2023
Seaweed restocking along the Chilean coast: History, present, and inspiring recommendations for sustainability
Carolina Oyarzo-Miranda, Ricardo Otaíza, Alexis Bellorín, J.M. Alonso Vega, Fadia Tala, et al.
Frontiers in Marine Science, 2023
Effect of UV-radiation on the physiology of the invasive green seaweed Codium fragile and its associated bacteria
Eva Rothäusler, Sergey Dobretsov, María Fernanda Gómez, David Jofré-Madariaga, Martin Thiel, et al.
Marine Environmental Research, 2022
Chemical composition and heavy metal content of Chilean seaweeds: Potential applications of seaweed meal as food and feed ingredients
Karina Véliz, Pedro Toledo, Michael Araya, María Fernanda Gómez, Vieia Villalobos, et al.
Food Chemistry, 2022
Exposure time modulates the effects of climate change-related stressors on fertile sporophytes and early-life stage performance of a habitat-forming kelp species
Claudio P. González, Mario Edding, Fadia Tala, Rodrigo Torres, Patricio H. Manríquez
Environmental Pollution, 2021
A new threat to local marine biodiversity: Filamentous mats proliferating at mesophotic depths off Rapa Nui
Javier Sellanes, Matthias Gorny, Germán Zapata-Hernández, Gonzalo Alvarez, Praxedes Muñoz, et al.
Peerj, 2021
Macrocystis pyrifera extract residual as nutrient source for the production of sophorolipids compounds by marine yeast rhodotorula rubra
Allison Leyton, Michael Araya, Fadia Tala, Liset Flores, María Elena Lienqueo, et al.
Molecules, 2021
Concise review of the genus Durvillaea Bory de Saint-Vincent, 1825
Marcel Velásquez, Ceridwen I. Fraser, Wendy A. Nelson, Fadia Tala, Erasmo C. Macaya
Journal of Applied Phycology, 2020
Detached Seaweeds as Important Dispersal Agents Across the Southern Ocean
Erasmo C. Macaya, Fadia Tala, Iván A. Hinojosa, Eva Rothäusler
Antarctic Seaweeds Diversity Adaptation and Ecosystem Services, 2020
Impact of UV radiation on the red seaweed Gelidium lingulatum and its associated bacteria
Sergey Dobretsov, Karina Véliz, María Soledad Romero, Fadia Tala, Martin Thiel
European Journal of Phycology, 2020
Long-term persistence of the floating bull kelp Durvillaea antarctica from the South-East Pacific: Potential contribution to local and transoceanic connectivity
Fadia Tala, Boris A. López, Marcel Velásquez, Ricardo Jeldres, Erasmo C. Macaya, et al.
Marine Environmental Research, 2019
Spatio-temporal variability of strandings of the southern bull kelp Durvillaea antarctica (Fucales, Phaeophyceae) on beaches along the coast of Chile—linked to local storms
Boris A. López, Erasmo C. Macaya, Ricardo Jeldres, Nelson Valdivia, César C. Bonta, et al.
Journal of Applied Phycology, 2019
Variation of the photosynthetic activity and pigment composition in two morphotypes of Durvillaea antarctica (Phaeophyceae) in the sub-Antarctic ecoregion of Magallanes, Chile
F. Méndez, J. Marambio, J. Ojeda, S. Rosenfeld, J. P. Rodríguez, et al.
Journal of Applied Phycology, 2019
Epibiont communities on stranded kelp rafts of Durvillaea antarctica (Fucales, Phaeophyceae)—Do positive interactions facilitate range extensions?
Boris A. López, Erasmo C. Macaya, Marcelo M. Rivadeneira, Fadia Tala, Florence Tellier, et al.
Journal of Biogeography, 2018
High acclimation potential in floating Macrocystis pyrifera to abiotic conditions even under grazing pressure – a field study
Eva Rothäusler, Hannes Reinwald, Boris A. López, Fadia Tala, Martin Thiel
Journal of Phycology, 2018
The herbivorous fish, Aplodactylus punctatus, as a potential facilitator of dispersal of kelp, Lessonia trabeculata, in Chile
Catalina S. Ruz, Arley F. Muth, Fadia Tala, Alejandro Pérez-Matus
Journal of Experimental Marine Biology and Ecology, 2018
Morphological and physiological differences between two morphotypes of Durvillaea antarctica (Phaeophyceae) from the sub-Antarctic ecoregion of Magallanes, Chile
F. Méndez, F. Tala, R. Rautenberger, J. Ojeda, S. Rosenfeld, et al.
Journal of Applied Phycology, 2017
Phylogeography of two intertidal seaweeds, Gelidium lingulatum and G. rex (Rhodophyta: Gelidiales), along the South East Pacific: patterns explained by rafting dispersal?
Boris A. López, Florence Tellier, Juan C. Retamal-Alarcón, Karla Pérez-Araneda, Ariel O. Fierro, et al.
Marine Biology, 2017
The variable routes of rafting: stranding dynamics of floating bull kelp Durvillaea antarctica (Fucales, Phaeophyceae) on beaches in the SE Pacific
Boris A. López, Erasmo C. Macaya, Fadia Tala, Florence Tellier, Martin Thiel
Journal of Phycology, 2017
Daily and seasonal changes of photobiological responses in floating bull kelp Durvillaea antarctica (Chamisso) Hariot (Fucales: Phaeophyceae)
Fadia Tala, Miguel Angel Penna-Díaz, Guillermo Luna-Jorquera, Eva Rothäusler, Martin Thiel
Phycologia, 2017
Latitudinal and seasonal effects on short-term acclimation of floating kelp species from the South-East Pacific
Fadia Tala, Marcel Velásquez, Andrés Mansilla, Erasmo C. Macaya, Martin Thiel
Journal of Experimental Marine Biology and Ecology, 2016
Epibiont load causes sinking of viable kelp rafts: seasonal variation in floating persistence of giant kelp Macrocystis pyrifera
Angelika Graiff, Jose F. Pantoja, Fadia Tala, Martin Thiel
Marine Biology, 2016
Short- and long-term acclimation patterns of the giant kelp Macrocystis pyrifera (Laminariales, Phaeophyceae) along a depth gradient
Kristina Koch, Martin Thiel, Wilhelm Hagen, Martin Graeve, Iván Gómez, et al.
Journal of Phycology, 2016
No sex-related dispersal limitation in a dioecious, oceanic long-distance traveller: The bull kelp Durvillaea antarctica
Dominic Lizée-Prynne, Boris López, Fadia Tala, Martin Thiel
Botanica Marina, 2016
Float and raft: Role of buoyant seaweeds in the phylogeography and genetic structure of non-buoyant associated flora
Erasmo C. Macaya, Boris López, Fadia Tala, Florence Tellier, Martin Thiel
Seaweed Phylogeography Adaptation and Evolution of Seaweeds Under Environmental Change, 2016
Effects of kelp phenolic compounds on the feeding-associated mobility of the herbivore snail Tegula tridentata
Mariana Pereira, Fadia Tala, Miriam Fernández, Maria Dulce Subida
Marine Environmental Research, 2015
Species separation within the Lessonia nigrescens complex (Phaeophyceae, Laminariales) is mirrored by ecophysiological traits
Kristina Koch, Martin Thiel, Florence Tellier, Wilhelm Hagen, Martin Graeve, et al.
Botanica Marina, 2015
Environmental tolerance of the two invasive species Ciona intestinalis and Codium fragile: their invasion potential along a temperate coast
David Jofré Madariaga, Marcelo M. Rivadeneira, Fadia Tala, Martin Thiel
Biological Invasions, 2014
Ecophysiological characteristics of Porphyra spp. (Bangiophyceae, Rhodophyta): Seasonal and latitudinal variations in northern-central Chile
Fadia Tala, Fungyi Chow
Journal of Applied Phycology, 2014
Economic valuation of kelp forests in northern Chile: values of goods and services of the ecosystem
Julio A. Vásquez, Sergio Zuñiga, Fadia Tala, Nicole Piaget, Deni C. Rodríguez, et al.
Journal of Applied Phycology, 2014
Major consequences of minor damage: Impacts of small grazers on fast-growing kelps
Alistair G. B. Poore, Lars Gutow, José F. Pantoja, Fadia Tala, David Jofré Madariaga, et al.
Oecologia, 2014
Phenology and photosynthetic performance of Porphyra spp. (Bangiophyceae, Rhodophyta): Seasonal and latitudinal variation in Chile
F. Tala, F. Chow
Aquatic Botany, 2014
Morphological, physiological and reproductive conditions of rafting bull kelp (Durvillaea antarctica) in northern-central Chile (30°S)
F. Tala, I. Gómez, G. Luna-Jorquera, M. Thiel
Marine Biology, 2013
Seasonal variation in floating persistence of detached Durvillaea antarctica (Chamisso) Hariot thalli
Angelika Graiff, Ulf Karsten, Steffi Meyer, David Pfender, Fadia Tala, et al.
Botanica Marina, 2013
Herbivorous amphipods inhabit protective microhabitats within thalli of giant kelp Macrocystis pyrifera
Lars Gutow, Jeremy D. Long, Osvaldo Cerda, Ivan A. Hinojosa, Eva Rothäusler, et al.
Marine Biology, 2012
Kelp rafts in the humboldt current: Interplay of abiotic and biotic factors limit their floating persistence and dispersal potential
Eva Rothä usler, Ivàn Gómez, Ivàn A. Hinojosa, Ulf Karsten, Leonardo Miranda, et al.
Limnology and Oceanography, 2011
Physiological acclimation of floating Macrocystis pyrifera to temperature and irradiance ensures long-term persistence at the sea surface at mid-latitudes
Eva Rothäusler, Iván Gómez, Ulf Karsten, Fadia Tala, Martin Thiel
Journal of Experimental Marine Biology and Ecology, 2011
UV-radiation versus grazing pressure: Long-term floating of kelp rafts (Macrocystis pyrifera) is facilitated by efficient photoacclimation but undermined by grazing losses
Eva Rothäusler, Iván Gómez, Ulf Karsten, Fadia Tala, Martin Thiel
Marine Biology, 2011
Physiological performance of floating giant kelp macrocystis pyrifera (phaeophyceae): Latitudinal variability in the effects of temperature and grazing
Eva Rothäusler, Iván Gómez, Iván A. Hinojosa, Ulf Karsten, Fadia Tala, et al.
Journal of Phycology, 2011
Compensatory growth of the kelp Macrocystis integrifolia (Phaeophyceae, Laminariales) against grazing of Peramphithoe femorata (Amphipoda, Ampithoidae) in northern-central Chile
Osvaldo Cerda, Ulf Karsten, Eva Rothäusler, Fadia Tala, Martin Thiel
Journal of Experimental Marine Biology and Ecology, 2009
Effect of temperature and grazing on growth and reproduction of floating Macrocystis spp. (phaeophyceae) along a latitudinal gradient
Eva Rothäusler, Iván Gómez, Iván A. Hinojosa, Ulf Karsten, Fadia Tala, et al.
Journal of Phycology, 2009
Cultivation of Chondrus canaliculatus (C. Agardh) Greville (Gigartinales, Rhodophyta) in controlled environments
Mario Edding, Erika Fonck, Roberto Acuña, Fadia Tala
Aquaculture International, 2008
The Humboldt Current System of northern and central Chile - Oceanographic processes, ecological interactions and socioeconomic feedback
Oceanography and Marine Biology, 2007
Early life stages of the South Pacific kelps Lessonia nigrescens and Lessonia trabeculata (Laminariales, Phaeophyceae) show recovery capacity following exposure to UV radiation
Fadia Tala, Karina Véliz, Iván Gómez, Mario Edding
Phycologia, 2007
First estimates of productivity in Lessonia trabeculata and Lessonia nigrescens (Phaeophyceae, Laminariales) from the southeast Pacific
Fadia Tala, Mario Edding
Phycological Research, 2007
Morphological variations of Gracilaria chilensis Bird, McLachlan et Oliveira, 1986 (Rhodophyta, Gracilariales) in the southeast Pacific
Mario Edding, Cristina León, Fadia Tala
Gayana, 2006
Growth and loss of distal tissue in blades of Lessonia nigrescens and Lessonia trabeculata (Laminariales)
Fadia Tala, Mario Edding
Aquatic Botany, 2005
Aspects of the reproductive phenology of Lessonia trabeculata (Laminariales: Phaeophyceae) from three populations in northern Chile
Fadia Tala, Mario Edding, Julio Vásquez
New Zealand Journal of Marine and Freshwater Research, 2004
Development of techniques for the cultivation of Lessonia trabeculata Villouta et Santelices (Phaeophyceae: Laminariales) in Chile
Mario E Edding, Fadia B Tala
Aquaculture Research, 2003
Artificial induction of sporulation in Lessonia (Phaeophyta, Laminariales)
Erika Fonck, Mariela Venegas, Fadia Tala, Mario Edding
Journal of Applied Phycology, 1998
Copper transfer and influence on a marine food chain
M. Edding, F. Tala
Bulletin of Environmental Contamination and Toxicology, 1996
Repopulation of intertidal areas with Lessonia nigrescens in northern Chile
Julio A. Vásquez, Fadia Tala
Journal of Applied Phycology, 1995
Sporangial Sori on Stipes of Lessonia nigrescens Bory (Laminariales, Phaeophyta): A High Frequency Phenomenon in Intertidal Populations of Northern Chile
M. Venegas, F. Tala, E. Fonck, J. Vásquez
Botanica Marina, 1992

Fadia Tala

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Scopus Publications