A5035136607- Marine animal studies overview
- Marine and fisheries research
- Aquaculture disease management and microbiota
- Toxoplasma gondii Research Studies
- Underwater Acoustics Research
- Animal Vocal Communication and Behavior
- Arctic and Antarctic ice dynamics
- Ichthyology and Marine Biology
- Marine and coastal plant biology
- Wildlife Ecology and Conservation
- Arctic and Russian Policy Studies
- Coral and Marine Ecosystems Studies
- Cephalopods and Marine Biology
- Aerospace Engineering and Energy Systems
- Isotope Analysis in Ecology
- Human-Animal Interaction Studies
- Parasitic Infections and Diagnostics
- Marine Bivalve and Aquaculture Studies
- Ocean Acidification Effects and Responses
- Toxic Organic Pollutants Impact
- Economic and Environmental Valuation
- Salmonella and Campylobacter epidemiology
- Forensic Entomology and Diptera Studies
- Meat and Animal Product Quality
- Environmental Education and Sustainability
Fundação Instituto de Pesca do Estado do Rio de Janeiro
2016-2025
Migration Institute of Australia
2022-2024
STMicroelectronics (France)
2022
Universidade de São Paulo
2014-2016
Universidad de Las Palmas de Gran Canaria
2014
Centers for Disease Control and Prevention
2014
Drexel University
2014
Baleen whales migrate from productive high-latitude feeding grounds to usually oligotrophic tropical and subtropical reproductive winter grounds, translocating limiting nutrients across ecosystem boundaries in their bodies. Here, we estimate the latitudinal movement of through carcasses, placentas, urea for four species baleen that exhibit clear annual migration, relying on spatial data publicly available databases, present past populations, measurements protein catabolism other sources...
Fidelity of individual animals to breeding sites is a primary determinant population structure. The degree and scale philopatry in reflect the fitness effects social facilitation, ecological adaptation optimal inbreeding. Patterns breeding-site movement fidelity are functions structure frequently sex biased. We report on female humpback whale ( Megaptera novaeangliae ) first identified by natural markings off Brazil that subsequently was photographed Madagascar. minimum travel distance...
Abstract Hepatic and pulmonary lesions are common in cetaceans, despite their poorly understood viral etiology. Herpesviruses (HV), adenoviruses (AdV) hepatitis E virus (HEV) emerging agents associated with liver and/or damage mammals. We isolated molecularly tested DNA for HV AdV (n = 218 individuals; 187 108 lung samples) RNA HEV 147 animals; from six cetacean families. All animals stranded or were bycaught Brazil between 2001 2021. Positive-animals analyzed by histopathology. Statistical...
Since 2010, Guiana dolphin morbillivirus (GDMV; family Paramyxoviridae , genus Morbillivirus species ceti syn. Cetacean ) is recognized as the cause of death multiple cetacean along Brazilian coast, including an unusual mortality event in Rio de Janeiro state. Coronaviruses Gammacoronavirus (family Coronaviridae have been previously detected cetaceans northern hemisphere. After emergence severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), responsible for COVID-19 pandemic and with...
Site fidelity and movements were studied for humpback whales photo-identified from 1989 to 2006 in the Abrolhos Bank, southwestern Atlantic, Brazil. A total of 2,612 individuals identified, 374 which observed on more than one occasion. The cumulative number identified has increased since 1989. Recapture rate was low varied among different years. 33 using Bank longer 10 yr, up a maximum 16 yr. Our data suggest that show distinct movement rates. Some used large extent region. Opportunistic...
This study describes the pathologic findings of 24 humpback whales (Megaptera novaeangliae) found stranded along Brazilian coast from 2004 to 2016. Eighteen (75%) animals evaluated were alive. From these, 13 died naturally on shore and five euthanized. Six at sea washed ashore. Of 24, 19 (79.2%) calves, four (16.7%) juveniles, one (4.2%) was an adult. The most probable cause stranding and/or death (CSD) determined in 23/24 (95.8%) individuals. In CSD included neonatal respiratory distress...
Herpesvirus (HV) infections in cetaceans are frequently associated with skin and mucosal lesions. Although HV have been reported worldwide, their occurrence southern Atlantic marine mammals is still poorly understood. We tested skin, oral genital beta-actin PCR-positive samples from 109 free-ranging Brazilian using a universal herpesvirus DNA polymerase PCR. Herpesvirus-positive Guiana dolphin (Sotalia guianensis), dwarf sperm whale (Kogia sima), Bolivian river (Inia boliviensis), lingual...
Estimating the postmortem interval (PMI) in cetaceans is challenging. These mammals often sink after death, later floating and traveling considerable distances before stranding, complicating decomposition stage analysis. Our study investigates patterns humpback whale, guiana dolphin, franciscana dolphin. We analyzed stages using photographic data from Instituto Baleia Jubarte (IBJ) conducted a controlled dolphin carcass laboratory to establish reliable PMI baseline for carcasses found along...
Although it is largely assumed that shark predation and risk are unimportant to large cetaceans, whales can make up portions of the diets some species. We investigated interactions between sharks cetaceans in Abrolhos Bank (16°40′ 19°40′S), off eastern coast Brazil, including scavenging attempts on living humpback ( Megaptera novaeangliae ). In order determine frequency bites both postmortem, we used carcasses discovered along 2001 2010 photographs during systematic opportunistic visual...
Brucella-exposure and infection is increasingly recognized in marine mammals worldwide. To better understand the epidemiology health impacts of Brucella spp. Brazil, molecular (conventional PCR and/or real-time PCR), serological (Rose Bengal Test [RBT], Competitive [c]ELISA, Serum Agglutination [SAT]), pathological, immunohistochemical (IHC) microbiological investigations were conducted samples 129 stranded or by-caught (orders Cetartiodactyla [n = 124], Carnivora 4] Sirenia 1]). Previous...
Abstract Toxoplasmosis is a parasitic disease caused by the protozoan Toxoplasma gondii. In cetaceans, T. gondii infection significant cause of morbidity and mortality. Despite worldwide range broad cetacean host record infection, there limited information on toxoplasmosis in cetaceans from Southern hemisphere. We investigated occurrence histopathology immunohistochemistry tissue samples 185 animals comprising 20 different species Brazil. Three out (1.6%) presented gondii-associated lesions:...
The humpback whale (HW; Megaptera novaeangliae) population that seasonally resides along the Brazilian coast concentrates in Abrolhos Bank (Bahia and Espírito Santo states) for breeding during austral winter spring. Cetacean morbillivirus (CeMV, Paramyxoviridae family) is currently one of most significant biological threats to cetaceans worldwide with high infection mortality rates. CeMV pleiotropic yet it has special tropism respiratory, lymphoid nervous system primarily transmitted by...
Abstract Humpback whales ( Megaptera novaeangliae ) are a cosmopolitan species and perform long annual migrations between low-latitude breeding areas high-latitude feeding areas. Their populations appear to be spatially genetically segregated due long-term, maternally inherited fidelity natal In the Southern Hemisphere, some humpback whale mix in Ocean waters summer, but very little movement Pacific Atlantic has been identified date, suggesting these constituted an oceanic boundary distinct...
Abstract The cosmopolitan distribution of humpback whales ( Megaptera novaeangliae ) is largely driven by migrations between winter low-latitude breeding grounds and summer high-latitude feeding grounds. Southern Hemisphere faced intensive exploitation during the whaling eras recently show evidence population recovery. Gene flow shared song indicate overlap western (A) eastern (B1, B2) Breeding Stocks in South Atlantic Indian Oceans (C1). Here, we investigated photo-identification...
Guiana dolphins, Sotalia guianensis, are vulnerable to extinction along their distribution on the Brazilian coast and assessing chemical pollution is of utmost importance for conservation. For this study, 51 carcasses dolphins were sampled across investigate legacy emerging brominated flame retardants (BFRs) as well naturally-produced MeO-BDEs. PBDEs MeO-BDEs detected in all samples analyzed, whereas BFRs 16 % samples, Rio de Janeiro state. PBDE concentrations varied between 2.24 799 ng.g-1...
Ocean currents, driven by gravity, wind, and water density, disperse marine biota worldwide, often leading species to shorelines alive or as carcasses. These carcasses provide vital information about species' health conditions threats within their habitats. Marine animal strandings thus offer crucial insights into the ecological implications of population mortality. This research is instrumental for conservation efforts identifying trends threats. Scientists use human forensics approaches...
Aiming to verify the movements of bottlenose dolphin (Tursiops truncatus) at Rio de Janeiro State coast, southeastern Brazil, we performed a photoidentification comparison between catalogued individuals Cagarras Archipelago (23° 02' S and 43° 12' W) in 2004 2006 (n = 26) images obtained 179) during Southeastern Cetaceans Expedition, conducted months June November 2005. Eight (three females five dolphins unknown gender) identified were resighted Grande Island 21'S 44° 15' W), about 100 km...
We develop a framework for natural resource valuation that directly addresses the fundamental collective action problem in environmental protection. Our uses lessons of behavioral economics to create values individual decision makers find credible and relatable, addition stimulating excitement or concern is essential prompting action. then apply this value forest elephants Africa great whales are found off coasts Brazil Chile. The we estimate members these species significant: $1.75 million...
O aumento do tráfego de embarcações motorizadas em áreas utilizadas para alimentação, descanso e reprodução pelos peixes-boi marinhos tem não só afugentado estes animais, mas resultado potenciais casos colisões. Este trabalho como objetivo relatar interações entre (Trichechus manatus) no litoral Nordeste Brasil. As ocorreram nos Estados Ceará, Paraíba Sergipe com três espécimes, sendo um destes quatro registros. Foram observados transtornos clínicos edema da região frontal, proptose ocular,...