A5003342932- Marine animal studies overview
- Marine and fisheries research
- Aquaculture disease management and microbiota
- Environmental Sustainability and Education
- Avian ecology and behavior
- Identification and Quantification in Food
- Cephalopods and Marine Biology
- Turtle Biology and Conservation
- Ichthyology and Marine Biology
- Lepidoptera: Biology and Taxonomy
- Wildlife-Road Interactions and Conservation
- Fish biology, ecology, and behavior
- Isotope Analysis in Ecology
- Plant and animal studies
- Microbial infections and disease research
- Marine Bivalve and Aquaculture Studies
- Coral and Marine Ecosystems Studies
- Aerospace Engineering and Energy Systems
- Microbial Natural Products and Biosynthesis
- Global Maternal and Child Health
- Antimicrobial Resistance in Staphylococcus
- Aquaculture Nutrition and Growth
- Animal Virus Infections Studies
- Genomics and Phylogenetic Studies
- Viral gastroenteritis research and epidemiology
Universidade Federal do Rio Grande do Sul
2014-2024
Centro Universitário Barão de Mauá
2024
Universidade Federal de Pernambuco
2021
University of Rio Grande and Rio Grande Community College
2015-2021
Universidade Federal do Rio Grande
2015
Pontifícia Universidade Católica do Rio Grande do Sul
2010
The Brazilian South coast seasonally hosts numerous marine species, observed particularly during winter months. Some animals, including fur seals, are found dead or debilitated along the shore and may harbor potential pathogens within their microbiota. In present study, a metagenomic approach was performed to evaluate viral diversity in feces of seals deceased state Rio Grande do Sul. fecal virome two seal species characterized: American (Arctocephalus australis) Subantarctic tropicalis)....
The evaluation of road-kill spatial patterns is an important tool to identify priority locations for mitigation measures aiming reduce wildlife mortality on roads. Single target or multi-species approaches are usually adopted implement such measures, although their success must be evaluated. We aim test if hotspots coincident among different vertebrate groups. If this true, data accidents from one group could used plan applicable other identified using five grouping criteria: classes...
The franciscana dolphin has been considered the most threatened small cetacean in south-western Atlantic Ocean due to gillnet by-catch. estimation of species' abundance recommended as highest research priority. A line transect aerial survey estimate Rio Grande do Sul, southern Brazil, was carried out February 2004. overall surveyed area comprised 13,341 km 2 and at least 20 lines. Abundance estimated using distance sampling methods assuming g(0) = 0.304. corrected density is 0.51...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 538:23-34 (2015) - DOI: https://doi.org/10.3354/meps11464 Latitudinal changes in structure of marine food webs Southwestern Atlantic Ocean F. Saporiti1,*, S. Bearhop2, D. G. Vales3, L. Silva3, Zenteno1, M. Tavares4, E. A. Crespo3,5, Cardona1 1Department Animal Biology and Institut de Recerca la Biodiversitat...
Abstract This study describes operational interactions between coastal gillnet fishing and South American sea lions ( Otaria flavescens ) off the southern Brazilian coast. In total, 263 onboard surveys were carried out during three periods 1992 2012 in boats from two harbours on northern coast of Rio Grande do Sul State: Passo de Torres (29°19'S; 49°43'W) Imbé (29°58'S; 50°07'W). Interactions observed 116 (24.0%) 484 operations. These more frequent (frequency occurrence FO = 42.8%) than...
ABSTRACT The common dolphins (genus Delphinus ) have one of most problematic taxonomies and complex distribution patterns all cetaceans. Although the taxonomy seem to been clarified somewhat in eastern North Pacific Indo‐Pacific Oceans, many questions remain Southwestern Atlantic Ocean (SWA). We review biogeography SWA. reviewed data from strandings, incidental catches sightings since 1922. Systematic surveys were conducted five major areas. Twenty‐one natural history collections examined,...
New ecosystems are being actively mined for new bioactive compounds. Because of the large amount unexplored biodiversity, bacteria from marine environments especially promising. Further, host-associated microbes special interest because their low toxicity and compatibility with host health. Here, we identified characterized biosynthetic gene clusters encoding antimicrobial compounds in enterococci recovered fecal samples wild animals remote human-affected ecosystems. Putative genomes 22...
Marine Mammal ScienceEarly View e13163 NOTE Impacts and lessons learned from the first highly pathogenic avian influenza (H5N1) outbreak in South American pinnipeds along southern Brazilian coast Renan C. de Lima, Corresponding Author Lima [email protected] orcid.org/0000-0002-9311-7085 Laboratório Ecologia e Conservação da Megafauna Marinha, Universidade Federal do Rio Grande, RS, Brazil Correspondence Brazil. Email: Contribution: Conceptualization, Data curation, Formal analysis,...
Abstract The southern right whale (SRW), Eubalaena australis , was heavily depleted by the whaling in Southern Hemisphere. In southwestern Atlantic, studies on SRWs have been concentrated two main breeding grounds: Península Valdés, Argentina (~42°′S) and Santa Catarina (SC) State, Brazil (~28°′S). To better understand ecology of region located between these grounds, shore-based surveys were carried out off Torres (29°19′S, 49°43′W), Rio Grande do Sul (RS). Whales observed area July October...
We assessed the level of genetic variability and population structure common bottlenose dolphin (Tursiops truncatus) in tropical subtropical portions southwestern Atlantic Ocean compared results with previous morphological findings. analyzed 109 samples dolphins that were sequenced for control region mtDNA genotyped seven polymorphic microsatellite loci. The suggested species this can be separated two major biological units, northern southern, an area parapatry at southern Brazil. unit seems...
Fibropapillomatosis (FP) is a benign tumoral disease that affects sea turtles, hampering movement, sight and feeding, ultimately leading to death. In Brazil, the was described for first time in 1986. Research suggests involvement of herpesvirus association with environmental genetic factors as causal agents FP. The objective present study detect characterize this turtles living coast state Rio Grande do Sul (RS), Brazil. From October 2008 July 2010, 14 were observed between beaches Torres...
In the Southwest Atlantic Ocean wintering breeding ground of Megaptera novaeangliae is located in northeastern coast Brazil, mainly Abrolhos Bank (16°55′ S, 38°50′ W) and its surroundings. During migratory percussion, events strandings are thought to occur. A total 58 stranded humpback whales were recorded between 1981 2011 along Rio de Janeiro state, Brazil. The number 20 years (1992–2011) increased during period study, with a mean 2.6 per year. 2010 peak occurred 13 records strandings....
Analyses using culture-independent molecular techniques have improved our understanding of microbial composition. The aim this work was to identify and quantify enterococci in fecal samples wild marine species real-time quantitative PCR. Seven Enterococcus were examined DNA South American fur seals (Arctocephalus australis), Subantarctic tropicalis), green turtles (Chelonia mydas), Magellanic penguins (Spheniscus magellanicus), snowy-crowned tern (Sterna trudeaui), white-backed stilt...
There have been few studies on Magellanic penguins (Spheniscus magellanicus). In 2008, these washed ashore along the Brazilian coast in unusually high numbers, some reaching as far northeast Brazil. As show little sexual dimorphism, sex determination by morphological features is not accurate. Here, we tested a molecular procedure for sexing specimens of S. magellanicus coasts Sergipe, Rio de Janeiro and Grande do Sul comparing ratio between localities. Tissue samples were collected from 135...
The microbiota of wild marine mammals is poorly understood, perhaps due to the migratory habits some species and difficulty in obtaining samples. Using high-throughput sequencing, present study examines faecal bacterial community young South American (Arctocephalus australis) Subantarctic fur seals (A. tropicalis). Faecal samples from (n = 6) 4) found dead along south coast Brazil were collected. Sequences assigned taxa using Ribosomal Database Project-Bayesian classifier. Diversity was...
Abstract Although the body size of consumers may be a determinant factor in structuring food webs, recent evidence indicates that fail to fully explain differences resource use patterns predators some situations. Here we compared trophic niche three sympatric and sexually dimorphic air‐breathing marine (the South American sea lion, Otaria flavescens , fur seal, Arctocephalus australis Magellanic penguin, Spheniscus magellanicus ) areas Southwestern Atlantic Ocean (Río de la Plata adjoining...
Enterococci are commensals that proliferated as animals crawled ashore hundreds of millions years ago. They also leading causes multidrug-resistant hospital-acquired infections. While most studies driven by clinical interest, comparatively little is known about enterococci in the wild or effect human activity on them. Pharmaceutical pollution and runoff from other activities encroaching widely into natural habitats. To assess their reach remote habitats, we investigated identity, genetic...
Externai rnorphology of the irnrnature stages neotropical heliconians.IH.Heliconills erato