A5078437576- Marine and coastal ecosystems
- Marine Toxins and Detection Methods
- Marine Biology and Ecology Research
- Aquatic Ecosystems and Phytoplankton Dynamics
- Geology and Paleoclimatology Research
- Isotope Analysis in Ecology
- Marine Bivalve and Aquaculture Studies
- Microbial Community Ecology and Physiology
- Aquatic Invertebrate Ecology and Behavior
- Marine and coastal plant biology
- Marine and environmental studies
- Coral and Marine Ecosystems Studies
- Algal biology and biofuel production
- Ocean Acidification Effects and Responses
- Petroleum Processing and Analysis
- Reproductive biology and impacts on aquatic species
- Biodiesel Production and Applications
- Aquaculture Nutrition and Growth
- Animal Ecology and Behavior Studies
- Environmental Toxicology and Ecotoxicology
- Cephalopods and Marine Biology
- Marine Invertebrate Physiology and Ecology
Universidad de Los Lagos
2020-2025
University of Concepción
2021
Abstract In recent decades, global dissolved oxygen (DO) measurements have registered a decrease of ∼1%–2% in content, raising concerns regarding the negative impacts ocean deoxygenation on marine life and greenhouse gas cycle. By combining situ data from 2016 to 2022, satellite remote sensing, outputs physical‐biogeochemical model, we revealed process Patagonian fjords for first time. Deoxygenation was associated with advection equatorial subsurface water (ESSW) mass into northern region...
At the end of summer 2020, a moderate (~105 cells L−1) bloom potential fish-killing Karenia spp. was detected in samples from 24 h study focused on Dinophysis outer reaches Pitipalena-Añihue Marine Protected Area. Previous events with devastating effects caged salmon and wild fauna Chilean Patagonia had been restricted to offshore waters, eventually reaching southern coasts Chiloé Island through channel connecting Inland Sea Pacific Ocean. This event occurred at onset COVID-19 lockdown when...
Abstract Species of the Dinophysis acuminata complex are main cause diarrhetic shellfish poisoning worldwide. These mixotrophs perform photosynthesis with plastids stolen from specific ciliate prey. Current transport models forecast advection established populations, but modelling bloom development and maintenance also needs to consider prey (Mesodinium spp.) Dinophysis. Predator have distinct niches, success relies on matching populations in time place. During autumn 2019, red tides...
The kelp genus Macrocystis presents populations recognizable by distinct morphological traits, which has raised discussions on its taxonomical status. Recently, whole genome sequencing arose global evidence of ecomorphs "integrifolia" and "pyrifera" being genetically distinct. In the southern hemisphere, both maintain a separated distribution that coincides, without overlap, in area 33° S. Besides fact are interfertile, at least under laboratory conditions, several differences their...
Dinophysis acuminata and D. acuta, which follows it seasonally, are the main producers of lipophilic toxins in temperate coastal waters, including Southern Chile. Strains two species differ their toxin profiles impacts on shellfish resources. acuta is considered major cause diarrhetic poisoning (DSP) outbreaks Chile, but there uncertainty about toxicity acuminata, little information microscale oceanographic conditions promoting blooms. During austral summer 2020, intensive sampling was...
Harmful algal blooms, in particular recurrent blooms of the dinoflagellate Alexandrium catenella, associated with paralytic shellfish poisoning (PSP), frequently limit commercial harvests, resulting serious socio-economic consequences. Although PSP-inducing species that threaten most vulnerable are very patchy and spatially heterogeneous their distribution, spatial temporal scales effects have largely been ignored monitoring programs by researchers. In this study, we examined dynamics PSP...
Over the recent decades, an apparent worldwide rise in Harmful Algae Blooms (HABs) has been observed due to growing exploitation of coastal environment, exponential growth monitoring programs, and global maritime transport. HAB species like
The bloom-forming toxic dinoflagellate Alexandrium catenella was first detected in southern Chile (39.5-55° S) 50 years ago and is responsible for most of the area's cases paralytic shellfish poisoning (PSP). Given complex life history A. catenella, which includes benthic sexual cysts, this study, we examined potential link between latitude, toxicity, compatibility. Nine clones isolated from Chilean Patagonia were used self- out-crosses all possible combinations (n = 45). effect latitude on...
The bloom-forming toxic dinoflagellate Alexandrium catenella was first detected in Southern Chile (39.5–55°S) 50 years ago and is responsible for most of the area’s cases paralytic shellfish poisoning (PSP). Given complex life history A. catenella, which includes benthic sexual cysts, this study we examined potential link between latitude, toxicity, compatibility. Nine clones isolated from Chilean Patagonia were used self- out-crosses all possible combinations...