14 results on '"Colosio AC"'
Search Results
2. A descriptive ultrasonographic and histological evaluation of the eyes of humpback whales (Megaptera novaeangliae).
- Author
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Pavanelli L, Ikeda JMP, Colosio AC, da Cunha Ramos HG, Montiani-Ferreira F, Estrela-Lima A, Silva DN, Muramoto C, and Oriá AP
- Abstract
Objective: To describe morphological features of Megaptera novaeangliae eyes using ultrasonography and histology., Animal Studied: A total of 21 globes from 19 M. novaeangliae were used for the study, including two animals with bilateral assessment. Nine stranded animals were found alive, 10 dead., Procedures: Carcasses were classified according to decomposition state. Globes were assessed ultrasonographically, biometric measurements were taken and then the tissues were sectioned for histological analysis., Results: Seventeen carcasses were classified as decomposition code 2 and two as code 3. Fifteen animals were calves, three juveniles and one adult, twelve males, and five females. The cornea was thinner in the center of the eye and thicker at the periphery. The lens had an oval shape. Fourteen animals showed a structure in the vitreous body which looked triangular and filamentous by ultrasonography and, histologically, originated in the central part of the optic nerve and extended to the posterior region of the lens, composed of connective tissue. The most common abnormalities found by ultrasonograph were retinal detachment (n = 13) and displacement of the lens into the vitreous (n = 4), along with alterations suggestive of hemorrhage, fibrin deposits, and increased echogenicity in the optic nerve (n = 2)., Conclusions: An intraocular structure not previously described in cetaceans was found in this investigation; its function remains unknown. Circulatory changes that were evident in the histopathological analysis may be due to the stranding process and raise the need to consider ophthalmic examinations before reintroducing stranded mysticetes., (© 2024 American College of Veterinary Ophthalmologists.)
- Published
- 2024
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3. PAHs in franciscana dolphins from the Southwestern Atlantic Ocean: Concentration and maternal transfer assessments.
- Author
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Santos-Neto EB, Manhães BMR, Oliveira-Ferreira N, Cordeiro CVS, Corrêa CAC, Brião JA, Guari EB, Botta S, Colosio AC, Ramos HGC, Barbosa LA, Bertozzi C, Cunha IAG, Carreira RS, Meire RO, Bisi TL, Azevedo AF, Cunha HA, and Lailson-Brito J
- Subjects
- Animals, Atlantic Ocean, Brazil, Female, Polycyclic Aromatic Hydrocarbons analysis, Polycyclic Aromatic Hydrocarbons metabolism, Water Pollutants, Chemical analysis, Water Pollutants, Chemical metabolism, Environmental Monitoring, Dolphins metabolism
- Abstract
Polycyclic aromatic hydrocarbons (PAHs) are organic compounds ubiquitous in the environment and known for their toxic, mutagenic, and carcinogenic effects. These compounds can bioaccumulate in the biota and be transferred through trophic webs. The franciscana dolphin (Pontoporia blainvillei), as top predators, can be an environmental sentinels. Thus, this study aimed to provide data about PAHs concentration in their hepatic tissue collected on the coast of Espírito Santo (Franciscana Management Area, FMA Ia), Rio de Janeiro (FMA IIa), and São Paulo states (FMA IIb), in Southeastern Brazil. PAHs were detected in 86 % of franciscana dolphins (n = 50). The highest ∑PAHs
Total median concentration was reported in FMA Ia followed by FMA IIb and FMA IIa (1055.6; 523.9, and 72.1 ng.g-1 lipid weight, respectively). Phenanthrene was detected in one fetus and two neonates, showing maternal transfer of PAHs in these dolphins. Evaluating PAHs with potential toxic effects is of utmost importance for the conservation of a threatened species., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier Ltd. All rights reserved.)- Published
- 2024
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4. Survey of selected viral agents (herpesvirus, adenovirus and hepatitis E virus) in liver and lung samples of cetaceans, Brazil.
- Author
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Sacristán C, Ewbank AC, Duarte-Benvenuto A, Sacristán I, Zamana-Ramblas R, Costa-Silva S, Lanes Ribeiro V, Bertozzi CP, Del Rio do Valle R, Castilho PV, Colosio AC, Marcondes MCC, Lailson-Brito J, de Freitas Azevedo A, Carvalho VL, Pessi CF, Cremer M, Esperón F, and Catão-Dias JL
- Subjects
- Humans, Animals, Brazil epidemiology, Adenoviridae genetics, Liver, Lung, Hepatitis E virus, Herpesviridae genetics, Humpback Whale, Adenoviridae Infections epidemiology, Adenoviridae Infections veterinary
- Abstract
Hepatic and pulmonary lesions are common in cetaceans, despite their poorly understood viral etiology. Herpesviruses (HV), adenoviruses (AdV) and hepatitis E virus (HEV) are emerging agents in cetaceans, associated with liver and/or pulmonary damage in mammals. We isolated and molecularly tested DNA for HV and AdV (n = 218 individuals; 187 liver and 108 lung samples) and RNA for HEV (n = 147 animals; 147 liver samples) from six cetacean families. All animals stranded or were bycaught in Brazil between 2001 and 2021. Positive-animals were analyzed by histopathology. Statistical analyses assessed if the prevalence of viral infection could be associated with the variables: species, family, habitat, region, sex, and age group. All samples were negative for AdV and HEV. Overall, 8.7% (19/218) of the cetaceans were HV-positive (4.8% [9/187] liver and 11.1% [12/108] lung), without HV-associated lesions. HV-prevalence was statistically significant higher in Pontoporiidae (19.2%, 10/52) when compared to Delphinidae (4.1%, 5/121), and in southeastern (17.1%, 13/76)-the most industrialized Brazilian region-when compared to the northeastern region (2.4%, 3/126). This study broadens the herpesvirus host range in cetaceans, including its description in pygmy sperm whales (Kogia breviceps) and humpback whales (Megaptera novaeangliae). Further studies must elucidate herpesvirus drivers in cetaceans., (© 2023. The Author(s).)
- Published
- 2024
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5. Molecular Detection and Characterization of Mycoplasma spp. in Marine Mammals, Brazil.
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Duarte-Benvenuto A, Sacristán C, Ewbank AC, Zamana-Ramblas R, Lial HC, Silva SC, Arias Lugo MA, Keid LB, Pessi CF, Sabbadini JR, Ribeiro VL, do Valle RDR, Bertozzi CP, Colosio AC, Ramos HDCG, Sánchez-Sarmiento AM, Ferioli RB, Pavanelli L, Ikeda JMP, Carvalho VL, Catardo Gonçalves FA, Ibáñez-Porras P, Sacristán I, and Catão-Dias JL
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- Animals, Brazil epidemiology, Mammals, RNA, Ribosomal, 16S, Mycoplasma genetics, Mycoplasma Infections epidemiology, Mycoplasma Infections veterinary, Mycoplasma Infections microbiology, Caniformia, Dolphins
- Abstract
Mycoplasma spp. are wall-less bacteria able to infect mammals and are classified as hemotropic (hemoplasma) and nonhemotropic. In aquatic mammals, hemoplasma have been reported in California sea lions (Zalophus californianus) and river dolphins (Inia spp.). We investigated Mycoplasma spp. in blood samples of West Indian manatees (Trichechus manatus), pinnipeds (5 species), and marine cetaceans (18 species) that stranded or were undergoing rehabilitation in Brazil during 2002-2022. We detected Mycoplasma in blood of 18/130 (14.8%) cetaceans and 3/18 (16.6%) pinnipeds. All tested manatees were PCR-negative for Mycoplasma. Our findings indicate that >2 different hemoplasma species are circulating in cetaceans. The sequences from pinnipeds were similar to previously described sequences. We also detected a nonhemotropic Mycoplasma in 2 Franciscana dolphins (Pontoporia blainvillei) that might be associated with microscopic lesions. Because certain hemoplasmas can cause disease and death in immunosuppressed mammals, the bacteria could have conservation implications for already endangered aquatic mammals.
- Published
- 2023
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6. The deep dive of organohalogen compounds: Bioaccumulation in the top predators of mesopelagic trophic webs, pygmy and dwarf sperm whales, from the Southwestern Atlantic ocean.
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de Oliveira-Ferreira N, Santos-Neto EB, Manhães BMR, Carvalho VL, Gonçalves L, de Castilho PV, Secchi ER, Botta S, Marcondes MCC, Colosio AC, Cremer MJ, Cunha HA, Azevedo AF, Bisi TL, and Lailson-Brito J
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- Animals, Whales metabolism, Hexachlorobenzene metabolism, Mirex, Halogenated Diphenyl Ethers analysis, Bioaccumulation, Atlantic Ocean, Environmental Monitoring, Polychlorinated Biphenyls analysis, Environmental Pollutants metabolism, Water Pollutants, Chemical analysis
- Abstract
Kogia sima and Kogia breviceps are apex predators of mesopelagic trophic webs being far from most anthropogenic threats. However, chemical pollutants and naturally synthesized compounds may travel long distances. This study aimed to use kogiid whales as sentinels of mesopelagic trophic webs in the Southwestern Atlantic Ocean. Persistent organic pollutants (POPs), e.g., polychlorinated biphenyls (PCBs), dichlorodiphenyltrichloroethane (DDT) and metabolites, mirex, hexachlorobenzene (HCB), polybrominated diphenylethers (PBDEs), pentabromoethylbenzene (PBEB) and hexabromobenzene (HBB), and the naturally produced methoxylated BDE (MeO-BDEs) were determined in the blubber of 16 K. sima and 15 K. breviceps. Among the organochlorine compounds, DDTs were the main group found in K. sima and in K. breviceps (1636.6 and 3983.3 ng g
-1 lw, respective medians), followed by PCBs (425.9 and 956.1 ng g-1 lw, respectively), mirex (184.1 and 375.6 ng g-1 lw, respectively), and HCB (132.4 and 340.3 ng g-1 lw, respectively). As for the organobromine, the natural MeO-BDEs were predominant (1676.7 and 501.6 ng g-1 lw, respectively), followed by PBDEs (13.6 and 10.3 ng g-1 lw, respectively) and PBEB (2.2 and 2.9 ng g-1 lw, respectively). In general, POPs concentration was higher in K. breviceps than in K. sima. Conversely, MeO-BDEs concentration was higher in K. sima than in K. breviceps. Differences in concentrations in these sympatric odontocetes were attributed to distinct species, sampling sites, and biological parameters and suggest some level of niche segregation. It is noteworthy the long-range reach and bioaccumulation of these synthetic compounds in an unexplored habitat, that present an increasing economic interest., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier Ltd. All rights reserved.)- Published
- 2023
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7. Spatial trends of trace elements bioaccumulation in the most endangered dolphin from the Southwestern Atlantic Ocean: The franciscana (Pontoporia blainvillei).
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Vannuci-Silva M, Manhães BMR, Guari EB, Botta S, Colosio AC, Barbosa LA, Bertozzi CP, Azevedo AF, Cunha HA, Bisi TL, and Lailson-Brito J
- Subjects
- Animals, Atlantic Ocean, Bioaccumulation, Brazil, Cadmium, Environmental Monitoring, Dolphins, Trace Elements analysis, Water Pollutants, Chemical analysis
- Abstract
Trace elements bioaccumulation patterns can be an important tool to assess differences among cetaceans' populations. In this work, their use as potential chemical markers to differentiate franciscanas (Pontoporia blainvillei) populations was evaluated. Franciscanas were collected from three states in southeastern Brazil, which comprise three different Franciscana Management Areas (FMAs): Espírito Santo (FMA Ia), southern Rio de Janeiro (FMA IIa), and central São Paulo (FMA IIb). The concentrations of As, Cd, Cu, Fe, Hg, Mn and Zn were determined in the muscle, liver and kidney of the animals. Cadmium was the most valuable chemical marker to differentiate stocks, separating at least FMA IIa from the others. The higher Cd levels in FMA IIa, along with dietary information, indicate that the predominant consumption of cephalopods by this population is the main reason for the differences found. Additionally, environmental characteristics of the areas should also be considered as divergent sources of trace elements. Our findings suggest that non-essential trace elements, such as Cd, can be successful markers to differentiate populations. The Mn concentrations in FMA Ia raised concern and must be carefully monitored, as well as other elements that compose the iron ore tailings that have impacted the Espírito Santo coastal area. Additionally, this is the first study to report trace element concentration in the franciscanas from FMA IIa (southern Rio de Janeiro). Trace element concentrations found in franciscanas may represent different contamination levels in their preys and environments, which might pose specific threats to distinct populations. Therefore, our findings are important to characterize and differentiate franciscana populations and to guide precise management and conservation actions for the distinct stocks of this endangered species., (Copyright © 2022 Elsevier Ltd. All rights reserved.)
- Published
- 2022
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8. Franciscana dolphins, Pontoporia blainvillei, as environmental sentinels of the world's largest mining disaster: Temporal trends for organohalogen compounds and their consequences for an endangered population.
- Author
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de Oliveira-Ferreira N, Manhães BMR, Santos-Neto EB, Rocha Y, Guari EB, Botta S, Colosio AC, Ramos HGC, Barbosa L, Cunha IAG, Bisi TL, Azevedo AF, Cunha HA, and Lailson-Brito J
- Subjects
- Animals, Brazil, Environmental Monitoring, Mining, Disasters, Dolphins, Pesticides, Polychlorinated Biphenyls analysis, Water Pollutants, Chemical analysis
- Abstract
On November 5th, 2015, the Fundão dam collapsed in Minas Gerais, southeastern Brazil, releasing millions of cubic meters of mud containing mining residue into the Doce River. Two weeks later, the mud arrived to the marine environment, triggering changes in franciscana dolphin habitat, Pontoporia blainvillei, from Franciscana Management Area Ia. This is an isolated population of the most endangered cetacean species in the South Atlantic Ocean. Organohalogen compounds (OHCs) may pose a threat to this endangered population because of their endocrine disrupting properties. Hence, this study sought to determine if there were differences in the bioaccumulation profile of OHC (PCBs, DDTs, Mirex, HCB, HCHs, PBDEs, PBEB, HBBZ and MeO-BDEs) in franciscana dolphins before and after dam collapse and to build a temporal trend. Blubber of 33 stranded individuals was collected in Espírito Santo state for organohalogen assessment between 2003 and 2019. Differences were found between franciscana dolphins collected prior to and after the disaster. Additionally, significant temporal trends for organochlorine pesticides and natural and anthropogenic organobromine were detected. The increase in pesticide concentrations after 2015 is suggestive of their reavailability in the environment. The decline in organobromine over time could be due to their debromination in the marine environment and alterations in the composition of their natural producers. PCBs remained stable during the period of the study. Our findings show an increase in endocrine disruptor concentrations, which is of great concern for this endangered population., (Copyright © 2022 Elsevier Ltd. All rights reserved.)
- Published
- 2022
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9. Temporal trends of trace elements bioaccumulation by a vulnerable cetacean (Pontoporia blainvillei) before and after one of the largest mining disasters worldwide.
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Manhães BMR, Vannuci-Silva M, Brião JA, Guari EB, Botta S, Colosio AC, Ramos HGC, Barbosa LA, Cunha IAG, Azevedo AF, Cunha HA, Bisi TL, and Lailson-Brito J
- Subjects
- Animals, Bioaccumulation, Brazil, Environmental Monitoring, Mining, Rivers, Disasters, Dolphins, Trace Elements analysis, Water Pollutants, Chemical analysis
- Abstract
One of the largest environmental disasters worldwide occurred on November 5th
, 2015, when the Fundão dam collapsed in Mariana (Minas Gerais State, Southeast Brazil). The tailing mud flooded the Doce River basin and reached the sea in the coast of Espírito Santo State (ES), Southeast Brazil. This coastal region is the habitat of the most isolated population of franciscana dolphins (Pontoporia blainvillei), with the lowest populational census and lowest genetic diversity in Franciscana Management Area Ia (FMA Ia) - 18° 25'S and 21° 17'S. This study aimed to assess the bioaccumulation of trace-elements (As, Cd, Cu, Fe, Hg, Mn, and Zn) in muscle, liver and kidney of franciscana dolphins collected near the Doce River's mouth before (n = 32) and after (n = 19) the tailing mud reached the sea. The Generalized Additive Model (GAM) showed increasing temporal trends of Hg and Zn in muscle and liver after the dam failure, probably related to higher concentrations and bioavailability in the water column and sediments from the Doce River. Declining trends were found for As and Cu muscular and hepatic concentrations and Fe concentrations in kidney due to their lower bioavailability after the disaster, caused by association with tailings mud trapped in the riverbanks and suspended particulate material. Additionally, higher As and Hg concentrations found in the first period of sampling may be due to historical contamination by mining activities. The full extent of the impacts caused by the Fundão dam failure is still unknown. However, due to their rapid increase and remobilization process, toxic effects can be induced in the biota by these elements. Elements' bioaccumulation in this study contributes to the knowledge of franciscana dolphins from FMA Ia. Considering the conservation concern regarding this franciscana population and its scarce knowledge, the impact of this disaster can be alarming for species conservation., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2021 Elsevier B.V. All rights reserved.)- Published
- 2022
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10. Toxoplasma gondii in cetaceans of Brazil: a histopathological and immunohistochemical survey.
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Costa-Silva S, Sacristán C, Gonzales-Viera O, Díaz-Delgado J, Sánchez-Sarmiento AM, Marigo J, Groch KR, Carvalho VL, Ewbank AC, Colosio AC, Marcondes MCC, Meirelles ACO, Bertozzi CP, Lailson-Brito J, Azevedo AF, Ruoppolo V, Oliveira L, Ott PH, and Catão-Dias JL
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- Animals, Brazil epidemiology, Cetacea classification, Immunohistochemistry, Toxoplasmosis, Animal diagnosis, Toxoplasmosis, Animal pathology, Antibodies, Protozoan blood, Cetacea parasitology, Toxoplasma immunology, Toxoplasmosis, Animal epidemiology
- Abstract
Toxoplasmosis is a parasitic disease caused by the protozoan Toxoplasma gondii. In cetaceans, T. gondii infection is a significant cause of morbidity and mortality. Despite the worldwide range and broad cetacean host record of T. gondii infection, there is limited information on toxoplasmosis in cetaceans from the Southern hemisphere. We investigated the occurrence of T. gondii by histopathology and immunohistochemistry in tissue samples of 185 animals comprising 20 different cetacean species from Brazil. Three out of 185 (1.6%) animals presented T. gondii-associated lesions: a captive killer whale Orcinus orca, a free-ranging common bottlenose dolphin Tursiops truncatus and a free-ranging Guiana dolphin Sotalia guianensis. The main lesions observed in these animals were necrotizing hepatitis, adrenalitis and lymphadenitis associated with protozoal cysts or extracellular tachyzoites presenting immunolabeling with anti-T. gondii antibodies. This study widens the spectrum of species and the geographic range of this agent in Brazil, and provides the first reports of T. gondii infection in a captive killer whale and in a free-ranging common bottlenose dolphin in South America.
- Published
- 2019
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11. Molecular, serological, pathological, immunohistochemical and microbiological investigation of Brucella spp. in marine mammals of Brazil reveals new cetacean hosts.
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Sánchez-Sarmiento AM, Carvalho VL, Díaz-Delgado J, Ressio RA, Fernandes NCCA, Guerra JM, Sacristán C, Groch KR, Silvestre-Perez N, Ferreira-Machado E, Costa-Silva S, Navas-Suárez P, Meirelles ACO, Favero C, Marigo J, Bertozzi CP, Colosio AC, Marcondes MCC, Cremer MJ, Dos Santos Silva N, Ferreira Neto JS, Keid LB, Soares R, Sierra E, Fernández A, and Catão-Dias JL
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- Animals, Brazil epidemiology, Brucellosis epidemiology, Brucellosis microbiology, Brucellosis pathology, Enzyme-Linked Immunosorbent Assay veterinary, Polymerase Chain Reaction veterinary, Serologic Tests veterinary, Brucella physiology, Brucellosis veterinary, Cetacea, Fur Seals, Sirenia
- Abstract
Brucella-exposure and infection is increasingly recognized in marine mammals worldwide. To better understand the epidemiology and health impacts of Brucella spp. in marine mammals of Brazil, molecular (conventional PCR and/or real-time PCR), serological (Rose Bengal Test [RBT], Competitive [c]ELISA, Serum Agglutination Test [SAT]), pathological, immunohistochemical (IHC) and/or microbiological investigations were conducted in samples of 129 stranded or by-caught marine mammals (orders Cetartiodactyla [n = 124], Carnivora [n = 4] and Sirenia [n = 1]). Previous serological tests performed on available sera of 27 of the 129 animals (26 cetaceans and one manatee), indicated 10 seropositive cetaceans. Conventional PCR and/or real-time PCR performed in cases with available organs (n = 119) and/or blood or swabs (n = 10) revealed 4/129 (3.1%) Brucella-infected cetaceans (one of them with positive serology; the remaining three with no available sera). Pathological, IHC and/or microbiological analyses conducted in PCR/real-time PCR and/or seropositive cases (n = 13) revealed Brucella-type lesions, including meningitis/meningoencephalitis, pneumonia, necrotizing hepatitis, pericarditis and osteoarthritis in some of those animals, and positive IHC was found in all of them (excepting two live-stranded animals without available organs). Brucella spp. culture attempts were unsuccessful. Our results demonstrated exposure, asymptomatic, acute and chronic Brucella sp. infection in several cetacean species in the Brazilian coast, highlighting the role of this pathogen in stranding and/or death, particularly in Clymene dolphin (Stenella clymene) and short-finned pilot whale (Globicephala macrorhynchus) off Ceará State. Novel hosts susceptible to Brucella included the franciscana (Pontoporia blainvillei), the Guiana dolphin (Sotalia guianensis) and the spinner dolphin (Stenella longirostris). Additionally, three coinfection cases involving Brucella spp. and cetacean morbillivirus, Edwarsiella tarda and Proteus mirabilis were detected. To the best of our knowledge, this is the first long-term and large-scale survey of Brucella spp. in marine mammals of South America, widening the spectrum of susceptible hosts and geographical distribution range of this agent with zoonotic potential., (© 2019 Blackwell Verlag GmbH.)
- Published
- 2019
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12. Pathology and causes of death in stranded humpback whales (Megaptera novaeangliae) from Brazil.
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Groch KR, Díaz-Delgado J, Marcondes MCC, Colosio AC, Santos-Neto EB, Carvalho VL, Boos GS, Oliveira de Meirelles AC, Ramos HGDC, Guimarães JP, Borges JCG, Vergara-Parente JE, St Leger JA, Fernández A, and Catão-Dias JL
- Subjects
- Animals, Bone Diseases mortality, Bone Diseases pathology, Brazil, Communicable Diseases mortality, Communicable Diseases pathology, Respiratory Insufficiency mortality, Respiratory Insufficiency pathology, Bone Diseases veterinary, Cause of Death, Communicable Diseases veterinary, Humpback Whale abnormalities, Respiratory Insufficiency veterinary
- Abstract
This study describes the pathologic findings of 24 humpback whales (Megaptera novaeangliae) found stranded along the Brazilian coast from 2004 to 2016. Eighteen (75%) animals evaluated were found stranded alive. From these, 13 died naturally on shore and five were euthanized. Six died at sea and were washed ashore. Of the 24, 19 (79.2%) were calves, four (16.7%) were juveniles, and one (4.2%) was an adult. The most probable cause of stranding and/or death (CSD) was determined in 23/24 (95.8%) individuals. In calves, CSD included neonatal respiratory distress (13/19; 68.4%), infectious disease (septicemia, omphaloarteritis and urachocystitis; 3/19; 15.8%), trauma of unknown origin (2/19; 10.5%), and vehicular trauma (vessel strike; 1/19; 5.3%). In juveniles and adult individuals, CSD was: emaciation (2/5; 40%), sunlight-thermal burn shock (1/5; 20%); and discospondylitis (1/5; 20%). In one juvenile, the CSD was undetermined (1/5; 20%). This study integrates novel findings and published case reports to delineate the pathology of a South-western Atlantic population of humpback whales. This foundation will aid in the assessment of the population health and establish a baseline for development of conservation policies.
- Published
- 2018
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13. Occurrence of Prosthenorchis elegans in Free-living Primates from the Atlantic Forest of Southern Bahia, Brazil.
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Catenacci LS, Colosio AC, Oliveira LC, De Vleeschouwer KM, Munhoz AD, Deem SL, and Pinto JM
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- Animals, Animals, Wild, Brazil epidemiology, Forests, Helminthiasis, Animal epidemiology, Monkey Diseases epidemiology, Acanthocephala isolation & purification, Callithrix parasitology, Helminthiasis, Animal parasitology, Leontopithecus parasitology, Monkey Diseases parasitology
- Abstract
Parasite prevalence and abundance are important factors affecting species' conservation. During necropsies on a free-living golden-headed lion tamarin ( Leontopithecus chrysomelas ) and two Wied's marmosets ( Callithrix kuhlii ) in the Atlantic Forest of southern Bahia, Brazil, we collected a large number of adult intestinal parasites that we identified as Prosthenorchis elegans. This parasite is pathogenic for neotropical primates. Prosthenorchis spp. infestation is influenced by diet with increased risk of exposure from ingesting invertebrate intermediate hosts. The biological similarities and sympatric nature of these two nonhuman primates support that they may harbor similar infectious and parasitic agents.
- Published
- 2016
- Full Text
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14. Novel cetacean morbillivirus in Guiana dolphin, Brazil.
- Author
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Groch KR, Colosio AC, Marcondes MC, Zucca D, Díaz-Delgado J, Niemeyer C, Marigo J, Brandão PE, Fernández A, and Luiz Catão-Dias J
- Subjects
- Animal Diseases diagnosis, Animals, Female, Genes, Viral, Molecular Sequence Data, Morbillivirus genetics, Phylogeny, Animal Diseases virology, Dolphins virology, Morbillivirus classification, Morbillivirus Infections veterinary
- Published
- 2014
- Full Text
- View/download PDF
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