A5029758936- Aquaculture disease management and microbiota
- Aquaculture Nutrition and Growth
- Invertebrate Immune Response Mechanisms
- Vibrio bacteria research studies
- Marine Sponges and Natural Products
- Taxation and Compliance Studies
- Marine Bivalve and Aquaculture Studies
- Coral and Marine Ecosystems Studies
- Barrier Structure and Function Studies
- Cephalopods and Marine Biology
- Coastal wetland ecosystem dynamics
- Agricultural and Food Production Studies
- Insect Pest Control Strategies
- Caveolin-1 and cellular processes
- Corporate Taxation and Avoidance
- Microbial Metabolites in Food Biotechnology
- Fiscal Policy and Economic Growth
- Fish Biology and Ecology Studies
- Pharmaceutical and Antibiotic Environmental Impacts
- Plant and soil sciences
- Bacterial biofilms and quorum sensing
- Biochemical and Structural Characterization
- Marine Biology and Environmental Chemistry
- Meat and Animal Product Quality
- Venomous Animal Envenomation and Studies
Valore (United States)
2025
Escuela Superior Politecnica del Litoral
2018-2024
Pontificia Universidad Católica de Valparaíso
2024
Universidad de La Laguna
1985
Abstract Background Acute hepatopancreatic necrosis disease (AHPND) is an important shrimp bacterial caused by some Vibrio species. The severity of the impact this on aquaculture worldwide has made it necessary to develop alternatives prophylactic antibiotics use, such as application probiotics. To assess potential use probiotics in order limit detrimental effects AHNPD, we evaluated effect ILI strain, a sp. bacterium and efficient probiotic, using metabarcoding ( 16S rRNA gene)...
Abstract This research studies the effects of a value added tax (VAT) reform that raised rate from 11 to 16 per cent at localities close international borders in Mexico. Using difference‐in‐differences, we find VAT hike increased prices by one‐third size full‐passthrough counterfactual. Moreover, workers absorbed part hike, as had negative effect on workers’ compensation. Informality, competition across border, worker mobility and earnings level drive find.
Bacterial diseases cause high mortality in Penaeus (Litopenaeus) vannamei postlarvae. Therefore, appropriate application of efficient therapeutic products is vital importance for disease control. This study evaluated through vitro analyses the antimicrobial effectiveness commercial used P. bacterial and antibiotics against pathogenic Vibrio strains circulating Ecuadorian hatcheries. Twenty were isolated from 31 larvae samples with counts 10 hatcheries collected during events. The virulence...
Some yeast strains have been proposed as probiotics to improve the health of cultured fish. Cobia is a tropical benthopelagic fish species with potential for marine aquaculture; however, one main limitations its large-scale production high mortality larvae. In this study, we evaluated probiotic autochthonous yeasts from intestines cobia. Thirty-nine isolates were recovered intestinal mucosa 37 adult healthy cobia by culture methods. Yeasts identified sequencing ITS and D1/D2 regions 28S rRNA...
To mitigate the economic losses provoked by disease outbreaks, shrimp producers employ therapeutic additives. However, important issues such as toxicity of these products on are not always considered. In vivo assays require a lot time and large physical resources. Here, we describe an in vitro procedure to evaluate functional additives, used production Penaeus vannamei. This method adapted cell viability assay based reduction tetrazolium salts (MTT) primary cultures hemocytes. •A simple...
White spot syndrome virus (WSSV) is one of the most virulent pathogens cultured penaeid shrimp. Several control strategies are used commonly to mitigate economic losses caused by pathogen, such as application antiviral products at farm level. One practical method for screening potential anti-WSSV through challenge tests. Therefore, it essential develop simple, reproducible and effective bioassays able simulate specific mortality levels. The purpose this study was a simple bioassay that...
Despite a large occurrence, especially over the Pacific Ocean, chemical diversity of marine invertebrates belonging to order Zoantharia is largely underexplored. For two species genus Antipathozoanthus no study has been reported so far. The first investigation hickmani collected at Marine Protected Area "El Pelado", Santa Elena, Ecuador, led isolation four new ecdysteroid derivatives named ecdysonelactones. structures ecdysonelactones A-D (1-4) were determined based on their spectroscopy...
The first chemical study of the marine sponge Callyspongia cf. californica widely distributed along coasts Tropical Eastern Pacific led to identification a new family amphiphilic derivatives called callyspongidic acids. four isolated metabolites 1–4 feature hydrophilic diacid end opposed both an aromatic moiety and long alkyl chain. They were evaluated against panel pathogenic microbes seven tumoral cell lines, displaying moderate inhibitory properties A2058 melanoma line with IC50 3.2 μM...
<title>Abstract</title> Acute Hepatopancreatic Necrosis Disease (AHPND), caused by various species of <italic>Vibrio</italic>, results in significant mortality rates global penaeid shrimp aquaculture. While antibiotics are commonly employed to combat this disease, concerns about the rapid emergence resistant strains and their potential adverse effects on human health environment rising. In context, plant-derived essential oils have shown promising for controlling vibriosis farming. This...
The marine biodiversity program of CENAIM-ESPOL focuses on sessile invertebrates from the “‘El Pelado’ reserve”. present study aims at understanding different hierarchical levels found “El Pelado” and to guide biodiscovery initiatives. Generated data were systematized in a database (Darwin Core standard) integrated into geographic information system that uses webGIS as search engine. In this way, becomes available academy entities involved management coastal resources.