A5088236656- Aquatic Invertebrate Ecology and Behavior
- Fish Ecology and Management Studies
- Genetic diversity and population structure
- Aquaculture Nutrition and Growth
- Marine Bivalve and Aquaculture Studies
- Marine Biology and Ecology Research
- Aquatic Ecosystems and Phytoplankton Dynamics
- Microbial Community Ecology and Physiology
- Parasite Biology and Host Interactions
- Fish Biology and Ecology Studies
- Crustacean biology and ecology
- Aquaculture disease management and microbiota
- Reproductive Physiology in Livestock
- Identification and Quantification in Food
- Reproductive biology and impacts on aquatic species
- Environmental DNA in Biodiversity Studies
- Bird parasitology and diseases
- Veterinary Equine Medical Research
- Physiological and biochemical adaptations
- Helminth infection and control
- Animal Behavior and Reproduction
- Marine and coastal ecosystems
- Isotope Analysis in Ecology
- Environmental and Cultural Studies in Latin America and Beyond
- Genetic and phenotypic traits in livestock
Universidad de Los Lagos
2015-2025
Austral University of Chile
2004-2023
Pontificia Universidad Católica de Chile
1993
Instituto Profesional de Chile
1988-1993
Swansea University
1990
Rhizobacteria are capable of stimulating plant growth through a variety mechanisms that include improvement nutrition, production and regulation phytohormones, suppression disease causing organisms.While considerable research has demonstrated their potential utility, the successful application promoting rhizobacteria (PGPR) in field been limited by lack knowledge ecological factors determine survival activity rhizosphere.To be effective, PGPR must maintain critical population density active...
The brine shrimp Artemia is a micro-crustacean, well adapted to the harsh conditions that severely hypersaline environments impose on survival and reproduction. Adaptation these has taken place at different functional levels or domains, from individual (molecular-cellular-physiological) population level. Such are experienced by very few equivalent macro-planktonic organisms; thus, can be considered model animal extremophile offering unique suite of adaptations focus this review. most obvious...
Aquaculture is a major source of invasive aquatic species, despite the fact that cultured organisms often have low genetic diversity and tend to be maladapted survive in wild. Yet, what extent aquaculture escapees become established by means high propagule pressure multiple origins not clear. We analysed 15 populations four farmed stocks non-native rainbow trout Chile, species first introduced for recreational fishing around 1900, but which has recent decades escaped large numbers from fish...
Abstract The brine shrimp Artemia is a highly required, convenient and cost‐effective live food used in fish shellfish larviculture. Its cysts, originating from limited number of inland salt lakes, are traded worldwide. Over the past decades, pond production solar saltworks, integrated with production, has emerged as an alternative to cope possible cyst shortages high prices on international market tool fulfill local biomass demands associated regional aquaculture developments. This article...
Abstract Hypersaline lakes or brines are unique ecosystems with value and biodiversity that provide economic (mining) noneconomic services (waterbird habitat). As they shrinking around the world due to brine diversion climatic oscillations, this article alerts on fragility of Andean high‐altitude hypersaline lagoons in Salar de Atacama hyperarid Desert, northern Chile. an integral part world's largest lithium exploitation from pumped beneath Salar, water shortage should compromise structure,...
The blue mussel Mytilus chilensis is an endemic and key socioeconomic species inhabiting the southern coast of Chile. This bivalve supports a booming aquaculture industry, which entirely relies on artificially collected seeds from natural beds that are translocated to diverse physical–chemical ocean farming conditions. Furthermore, production threatened by broad range microorganisms, pollution, environmental stressors eventually impact its survival growth. Herein, understanding genomic basis...
Abstract Rainbow trout Oncorhynchus mykiss and brown Salmo trutta are the world's two most widespread exotic fishes, dominate fish communities of cold‐temperate waters in southern hemisphere implicated decline extirpation native species. Here, we provide first direct comparison impacts rainbow on populations a by quantifying three components species impact: range, abundance effect. We surveyed 54 small streams island Chiloé Chilean Patagonia found that has colonized significantly more wider...
Exotic salmonids were deliberately introduced to the southern hemisphere during last part of 20th century, initially boost sport fishing and later develop an aquaculture industry. Early introductions justified by governments on purely utilitarian arguments as it was felt that translocated would capitalize otherwise 'underutilized' aquatic niches. A century later, exotic are established in nearly all places where they originally beyond, constitute one main threats endemic fish fauna, amongst...
In agreement with us, Frankham (2021) highlights the urgent necessity for CBD to include an indicator that tracks maintenance of genetic diversity within populations all species-wild and domestic.Draft Headline indicators (which Parties will need report) do not wild species (CBD/ SBSTTA/24/3Add.1).The genetically effective population size (N e ) is a metric quantifies rate change population.We welcome Frankham's comments on relevance this important parameter, appropriate threshold > 500 or N...
Abstract Species of Artemia are regionally endemic branchiopod crustaceans composed sexual species and parthenogenetic lineages, represent an excellent model for studying adaptation speciation to extreme heterogeneous hypersaline environments. We tested hypotheses whether populations from the Tibetan Plateau belong A. tibetianaAbatzopoulos, Zhang & Sorgeloos,1998 a population Kazakhstan is new species, using other Asian as outgroups. conducted multitrait phylogenetic study based on...
The conservation of data deficient species is often hampered by inaccurate delimitation. galaxiid fishes Aplochiton zebra and taeniatus are endemic to Patagonia (and for A. the Falkland Islands), where they threatened invasive salmonids. Conservation complicated because identification presence resident as well migratory ecotypes that may confound morphological discrimination. We used DNA barcoding (COI, cytochrome b) a new developed set microsatellite markers investigate relationships...
Abstract. A critical aspect of predicting soil organic carbon (SOC) concentrations is the lack available information; where information on characteristics available, it usually focused regions high agricultural interest. To date, in Chile, a large proportion SOC data have been collected areas intensive or forestry use; however, vast beyond these forms land use few no available. Here we present new database for country, which result an unprecedented national effort under framework Global Soil...
Abstract The health of the world's oceans is intrinsically linked to biodiversity ecosystems they sustain. importance protecting and maintaining ocean has been affirmed through setting UN Sustainable Development Goal 14 conserve sustainably use for society's continuing needs. decade beginning 2021–2030 additionally declared as Decade Ocean Science Development. This program aims maximize benefits science management, conservation, sustainable development marine environment by facilitating...
The brine shrimp Artemia, a crustacean adapted to the extreme conditions of hypersaline environments, comprises nine regionally distributed sexual species scattered (island-like) over heterogeneous environments and asexual (parthenogenetic) lineages with different ploidies. Such interaction within genus raises questions regarding origin time divergence both lineages, including persistence latter time, problem not yet clarified using single mitochondrial nuclear markers. Based on complete...
Abstract Aim Two species of the brine shrimp, namely Artemia franciscana Kellogg and A. persimilis Piccinelli Prosdocimi, inhabit Chile. Most studies so far have shown that is most widely distributed in Chile, with present only Chilean Patagonia. In general, there good agreement between morphological genetic comparisons populations respect to discrimination. However, a number results indicate an overlap some tending diverge from and/or resembling . Prior mid 90's use DNA markers was rather...
Harmful algae blooms (HABs) cause acute effects on marine ecosystems due to their production of endogenous toxins or enormous biomass, leading significant impacts local economies and public health. Although HAB monitoring has been intensively performed at spatiotemporal scales in coastal areas the world over last decades, procedures have not yet standardized. are complicated consist many methodologies, including physical, chemical, biological water sample measurements. Each program currently...
Determining molecular markers for parasites provides a useful tool their identification, particularly larval stages with few distinguishable diagnostic characters. Avian cestodes play key role in the food webs and biodiversity of hypersaline wetlands, yet they remain understudied. Using naturally infected Artemia, we identified cestode larvae (cysticercoids), assessed genetic diversity, explored phylogenetic relationships relation to morphology waterbird final hosts. We obtained partial 18S...
Abstract Species are fundamental units of nature that need proper identification in order to assess and conserve biodiversity. Artemia is a model crustacean for population analysis comparison regionally endemic sexual species parthenogenetic lineages distributed hypersaline lakes, lagoons, solar saltworks scattered arid semi-arid areas worldwide. The taxonomy two American has been controversial: monicaVerrill, 1869, adapted the carbonate-rich conditions Mono Lake (CA, USA),...
Local adaptations are important in evolution as they drive population divergence and preserve standing genetic diversity essential for resilience under climate change human impacts. Protecting locally adapted populations is aquaculture species. However, high larval connectivity frequent translocations challenge this Chilean blue mussel (Mytilus chilensis) aquaculture, a world-class industry Chiloé Island. This study examined local two ecologically distinct natural beds, Cochamó (northernmost...