A5051917714- Marine and coastal plant biology
- Marine Biology and Ecology Research
- Coastal wetland ecosystem dynamics
- Biocrusts and Microbial Ecology
- Lichen and fungal ecology
- Marine Bivalve and Aquaculture Studies
- Heavy metals in environment
- Ocean Acidification Effects and Responses
- Geology and Paleoclimatology Research
- Polar Research and Ecology
- Marine and coastal ecosystems
- Seaweed-derived Bioactive Compounds
- Algal biology and biofuel production
- Adsorption and biosorption for pollutant removal
- Genetic diversity and population structure
- Plant Stress Responses and Tolerance
- Phosphorus and nutrient management
- Wildlife Ecology and Conservation
- Microplastics and Plastic Pollution
- Environmental and Cultural Studies in Latin America and Beyond
- Diatoms and Algae Research
- Toxic Organic Pollutants Impact
- Echinoderm biology and ecology
- Amphibian and Reptile Biology
- Coastal and Marine Management
Center of Applied Ecology & Sustainability
2019-2024
Universidad Andrés Bello
2017-2024
Viña del Mar University
2021-2023
Pontificia Universidad Católica de Chile
2005-2014
Station Biologique de Roscoff
2009
Centre National de la Recherche Scientifique
2009
Sorbonne Université
2009
The role of dispersal potential on phylogeographic structure, evidenced by the degree genetic structure and presence coincident biogeographic breaks, was evaluated in a macrogeographic comparative approach along north-central coast Chile, across transition zone at 30°S. Using 2,217 partial sequences mitochondrial Cytochrome Oxidase I gene eight benthic invertebrate species ca. 2,600 km coast, we contrasted with determined concordance between divergence regions Genetic diversity...
Green algae blooms of the genus Ulva are occurring globally and primarily attributed to anthropogenic factors. At Los Tubos beach in Algarrobo Bay along central Chilean coast, there have been these that persist almost year-round over past 20 years, leading environmental, economic, social issues affect local government communities. The objective this study was characterize species form green tides based on a combination ecological, morpho-anatomical, molecular information. For purpose,...
Phylogeographic relationships were evaluated at the intraspecific level using nucleotide sequence data from mitochondrial cytochrome b gene of representative specimens "colilargo" (Oligoryzomys longicaudatus) 31 localities, along its distributional range over a large part western Andes and southern Argentina. Based on approximately 1,000 base pairs (bp), we recognized single species both Chilean Argentinean side as far least latitude 51°S, rejecting subspecific distinctiveness longicaudatus...
The industrial park of Quintero Bay (QB) in the central coast Chile was established 1960s, presents high levels pollution due to activity, and it is known as one five Chilean "sacrifice zones". Lessonia spicata most important habitat-forming kelp species intertidal along south shores Chile, currently there are no morphometric population studies L. (or other seaweed species) nor about effects on its development QB neighbouring sites. In this context, aims study were (i) register abundance...
A recent molecular taxonomic study along the Chilean coast (18° S-53° S) described 18 candidate species of bladed Bangiales which only two were formally described. Few studies focused on local genetic and morphological diversity attempted to determine their intertidal distribution in contrasting habitats, none performed Chile. To delimit distributions species, 66 samples collected at Maitencillo (32° four zones: a rocky platform, wall, boulders zones surrounded by sandy bottoms,...
The identity of two phaeophycean taxa that monopolized the middle‐lower rocky intertidal zone a coastal area chronically exposed to copper mine wastes in northern Chile was unraveled. One them preliminarily identified as gametophytic stage Scytosiphon lomentaria (Lyngbye) Link. other, dark crust, resembled alternate some species. Comparative analysis morphology, life history, and DNA sequences strongly suggests crusts corresponded sporophytic S. tenellus Kogame confirm erect thalli belonged...
El registro de la diversidad algas permite reconocer especies que podrían generar información base para medidas manejo, protección los ambientes y presentar nuevas oportunidades uso. En este contexto, el objetivo del presente trabajo fue determinar riqueza, cobertura composición ensamble macroalgas en zona intermareal Maitencillo, Valparaíso, Chile, durante 3 años monitoreo (2013-2015). Un total 29 fueron registradas, donde 23 ellas pertenecen a Rhodophyta, Ochrophyta; clase Phaeophyceae,...
Macrocystis pyrifera reaches distant areas after detachment, accumulate heavy metals, and serve as trophic subsidy. In this context, effects on both adults larvae of Tetrapygus niger fed with polluted kelps were determined by assessing growth, fertility, early larval development. Results revealed that sea urchins from highly impacted zone (HIZ) showed a lower growth (3.6% gained weight) gamete release (358 cells mL−1) than those non-impacted (NIZ) (19.3% 945 mL−1). The HIZ treatment...
Seaweed biochar is an efficient alternative bioadsorbent for Cu2+ removal due to its low cost and heavy metal capacity. Using the slow pyrolysis process, we produced biochars from Macrocystis pyrifera at 300 (BC300), 450 (BC450), 600 °C (BC600). The physicochemical structural properties of samples improved with increasing temperature °C, whereas no significant differences were observed further increases in °C. yield ranged between 49% 62% had a high ash content (57.5–71.1%). BC450 BC600...
The study of pollution effects in the marine environment has become important recent decades, and exposure to simultaneous pollutants especially relevant. Indeed, key organisms, such as ecosystem engineers, can show a broader view pollutants. In this context, we evaluate situ short (7-day) pulse combined solutions heavy metals polycyclic aromatic hydrocarbons (PAHs) (Cu + PAHs, Cd Cu Cd, PAHs) on development morphological features Macrocystis pyrifera sporophytes over period 90 days....
PAHs and heavy metals are characteristic pollutants in urbanized coastal areas, especially those with industrial activity. Given this context the ability of
The red seaweed Pyropia orbicularis is an economic important species that occurs predominantly in the high intertidal zone along chilean coast where it experiences extreme conditions under daily turning tides. Its gametophytic phase has been demonstrated to have a desiccation tolerance, both at genomic and proteomic levels, but studies metabolomic level are still lacking. This research aimed characterizing compounds related stress tolerance by performing several solid extractions with...
Abstract Coastal shores near the industrial park of Quintero Bay in central Chile exhibit increasing concentrations copper (Cu) and polycyclic aromatic hydrocarbons (PAHs), well above international standards. This raises concern about their combined toxic effects on early development stages kelps. Accordingly, we aimed to assess more accurately independent Cu PAHs gametogenesis sporophyte kelp Lessonia spicata from by vitro cultivation. Independent PAH trials were performed using nominal...
Recently 18 Bangiales seaweed species were reported for the Chilean coast, including Pyropia orbicularis and variabilis (large [LM] green [GM] morphotypes). Porphyra/Pyropia spp. occur mainly in upper intertidal where desiccation stress is triggered by tidal fluctuations. However, influence of environmental ecophysiological variables seasonal differences on (microhabitats) distributions unknown. Accordingly, we determined (i) effect (temperature [T], relative humidity [RH],...
One of the most important factors regulating distribution and abundance seaweeds is desiccation, triggered mainly by tidal changes climatic variation. Porphyra Pyropia species have evolved multiple strategies to tolerate desiccation stress; however, how these tolerance differ in inhabiting different latitudes still unknown. In this context, we analyzed, situ, physiological responses (collected from 18° S 41° along Chilean coast) stress using biochemical molecular analyses. The hyper-arid...
Global green tide blooms of the Ulva genus have been increasing due to human activities, with mass accumulation in Algarrobo Bay, Chile, causing ecological and social issues. In this area, five species were previously identified, stenophylloides dominating across seasons intertidal zones; uncialis was second most abundant, mainly winter. study, we tested hypothesis that U. is more tolerant desiccation than uncialis, explaining its dominance upper zone. Based on vitro cultures, assessed...
Gracilaria chilensis is distributed in New Zealand (including Chatham Island) and South America. This species has a three-stage sexual life cycle, as well asexual vegetative reproduction, commercially important it valuable source for producing agar. However, basing the crops exclusively on clonal reproduction propagation led to reduction their genotypic diversity, an increase susceptibility infection by epiphytes, decrease quality. Thus, establish indoor cultures of G. from thalli with mixed...