Metazoan parasites of Geophagus brasiliensis (Perciformes: Cichlidae) in Patos lagoon, extreme south of Brazil

Abstract This study has evaluated the parasitic fauna of 79 pearl cichlids (Geophagus brasiliensis) from the estuary of Patos Lagoon (31° 57' S and 52° 06' W), Rio Grande do Sul, Brazil, during the months of May and June in 2011 and 2012. All the hosts analyzed were infected with at least one species of parasite. A total of eleven metazoa were identified in 459 specimens collected. The trematode Austrodiplostomum compactum (34.2%) and ergasilids Ergasilus lizae (32.9%) and Gauchergasilus lizae (32.9%) were the most prevalent species. The trematodes Thometrema overstreeti and Posthodiplostomum sp. had significantly higher prevalence in fish longer than 20 cm. The sex of the host had no effect on parasite prevalence and abundance. Pearl cichlids are registered as a new host for the trematodes Lobatostoma sp., Homalometron pseudopallidum and Thometrema overstreeti, for the ergasilids Ergasilus lizae and Gauchergasilus euripedesi and for the argulid Argulus spinolosus. The crustacean E. lizae is recorded in Rio Grande do Sul for the first time.

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Catalogue of the tick collection (Acari, Ixodida) of the Museu de História Natural Capão da Imbuia, Curitiba, Paraná, Brazil

Revista Brasileira de Zoologia ◽

10.1590/s0101-81752005000300015 ◽

2005 ◽

Vol 22 (3) ◽

pp. 623-632 ◽

Cited By ~ 39

Author(s):

Márcia Arzua ◽

Valeria C. Onofrio ◽

Darci M. Barros-Battesti

Keyword(s):

Rio Grande ◽

The State ◽

State Parks ◽

Rio Grande Do Sul ◽

Type Specimens ◽

New Host ◽

Green Areas ◽

Historia Natural ◽

First Time ◽

New Host Species

The tick collection of the Museu de Historia Natural Capão da Imbuia was first sorted in the end of the 80's, and a list of specimens was published in 1992. During the last ten years, the collection has grown substantially and became the depository collection for type-specimens. The collection is the most regional representative depository of ticks from the State of Paraná, and it is one of the four largest Brazilian collections in number of specimens. All material was revised, and the data were computerized and catalogued in cards. To date, the collection includes 504 vials, with 2,073 specimens, belonging to 25 species and six genera of the families Argasidae and Ixodidae. The ticks were collected in regional and state parks and in green areas from 60 municipalities distributed within eight Brazilian states. This catalogue corrects some of the records published in 1992 for the state of Paraná and records new host species for Amblyomma aureolatum (Pallas, 1772), A. cajennense (Fabricius, 1787), A. longirostre (Koch, 1844), A. tigrinum Koch, 1844, Ixodes aragaoi Fonseca, 1935, I. auritulus Neumann, 1904, I. fuscipes Koch, 1844 and I. paranaensis Barros-Battesti, Arzua, Pichorim & Keirans, 2003. Amblyomma brasiliense Aragão, 1908, A. coelebs Neumann, 1899, A. nodosum Neumann, 1899 and I. fuscipes are recorded, for the first time, from the state of Paraná; A. longirostre from Rio Grande do Sul; I. fuscipes from Santa Catarina; I. schulzei Aragão & Fonseca, 1951 from Rondônia; and A. rotundatum Koch, 1844 from Bahia. In addition Haemaphysalis juxtakochi Cooley, 1946 and I. fuscipes are recorded for the first time, infesting birds.

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New species and records of mites of the superfamily Sarcoptoidea (Acariformes: Psoroptidia) from mammals in Brazil

Acta Parasitologica ◽

10.1515/ap-2016-0003 ◽

2016 ◽

Vol 61 (1) ◽

Cited By ~ 1

Author(s):

Andre V. Bochkov ◽

Michel P. Valim

Keyword(s):

New Species ◽

Rio Grande ◽

Minas Gerais ◽

Rio Grande Do Sul ◽

New Host ◽

The Family ◽

Molossus Molossus ◽

Host Parasite ◽

First Time ◽

Metachirus Nudicaudatus

AbstractSixteen species of the superfamily Sarcoptoidea (Acariformes: Psoroptidia) belonging to 10 genera of the families Atopomelidae, Listrophoridae, Chirodiscidae, and Listropsoralgidae are recorded in Brazil. Among them, three species, Prolistrophorus hylaeamys sp. nov. from Hylaeamys laticeps (Lund, 1840) (Cricetidae: Sigmodontinae) from Minas Gerais, Lynxacarus serrafreirei sp. nov. from Galictis cuja (Molina, 1782) (Carnivora: Mustelidae) from Rio de Janeiro (Listrophoridae), and Didelphoecius micoureus sp. nov. (Atopomelidae) from Micoureus paraguayanus (Tate, 1931) (Didelphimorphia: Didelphidae) from Minas Gerais are described as new for science. Three species of the family Listrophoridae, Prolistrophorus bidentatus Fain et Lukoschus, 1984 from Akodon cursor (Winge, 1887) (Rodentia: Cricetidae) (new host), Prolistrophorus ctenomys Fain, 1970 from Ctenomys torquatus Lichtenstein, 1830 (Rodentia: Ctenomyidae) (new host), and Leporacarus sylvilagi Fain, Whitaker et Lukoschus, 1981 from Sylvilagus brasiliensis (Linnaeus, 1758) (Lagomorpha: Leporidae) (new host) -from Minas Gerais and Rio Grande do Sul, and one species of the family Chirodiscidae, Parakosa tadarida McDaniel and Lawrence, 1962 from Molossus molossus (Pallas, 1766) (Chiroptera: Molossidae) are recorded for the first time in Brazil. The previously unknown female of Didelphoecius validus Fain, Zanatta-Coutinho et Fonseca, 1996 (Atopomelidae) from Metachirus nudicaudatus (Geoffroy, 1803) (Didelphimorphia: Didelphidae) from Minas Gerais is described. All data on host-parasite associations of sarcoptoids in Brazil are summarized. Totally, 61 sarcoptoid species of 8 families are recorded in Brazil.

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Pisces, Perciformes, Gobiidae, Ctenogobius stigmaticus (Poey, 1860): new species record at Patos Lagoon estuary, state of Rio Grande do Sul, Brazil

Check List ◽

10.15560/6.1.056 ◽

2010 ◽

Vol 6 (1) ◽

pp. 056 ◽

Cited By ~ 5

Author(s):

Marcelo Dias de Mattos Burns ◽

Alexandre Miranda Garcia ◽

João Paes Vieira

Keyword(s):

New Species ◽

Present Note ◽

Rio Grande ◽

Southern Brazil ◽

Rio Grande Do Sul ◽

Patos Lagoon ◽

Gobiid Fish ◽

Patos Lagoon Estuary ◽

First Time

The present note records for the first time the gobiid fish Ctenogobius stigmaticus (Poey, 1860) at Patos Lagoon stuary, state of Rio Grande do Sul, southern Brazil. The known distribution of this species is therefore extended 600 km southwards.

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Helminths Assemblage of the bare-faced ibis, Phimosus infuscatus (Lichtenstein, 1823) (Pelecaniformes: Threskiornithidae), in southern Brazil

Revista Brasileira de Parasitologia Veterinária ◽

10.1590/s1984-29612019001 ◽

2019 ◽

Vol 28 (1) ◽

pp. 40-46

Author(s):

Simone Scheer ◽

Carolina Silveira Mascarenhas ◽

Márcia Raquel Pegoraro de Macedo ◽

Gertrud Muller

Keyword(s):

Rio Grande ◽

Helminth Fauna ◽

Southern Brazil ◽

Rio Grande Do Sul ◽

Intensity Of Infection ◽

Mean Intensity ◽

Male Bird ◽

Significant Difference ◽

First Time ◽

Prevalent Species

Abstract Birds act as hosts for a variety of parasites, many of these are unreported. The literature provides scant information on the helminth fauna of Phimosus infuscatus. The presence of helminths were investigate in 28 birds from Pelotas, Capão do Leão, and Rio Grande in Rio Grande do Sul. The preparation and identification of helminths followed protocols. Prevalence (P%), mean intensity of infection (MII), and mean abundance (MA) were estimated. The following helminths were found: Hystrichis acanthocephalicus , Dioctophyme renale (larva), Porrocaecum heteropterum , Baruscapillaria sp., Aproctella carinii , Paradeletrocephalus minor, and Cyathostoma sp. (Nematoda); Echinostomatidae gen. sp., Tanaisia valida, and Athesmia sp. (Trematoda: Digenea) and Megalacanthus sp. (Cestoda). The most prevalent species were H. acanthocephalicus, P. heteropterum, Megalacanthus sp., and Echinostomatidae gen. sp. and Megalacanthus sp. had the highest MII and MA. There was a significant difference in the prevalence of H. acantocephalicus between female and male bird hosts. We report Echinostomatidae gen. sp., T. valida, Athesmia sp., Cyathostoma sp., A. carinii, P. minor, D. renale (larva), Baruscapillaria sp., and Megalacanthus sp. for the first time in P. infuscatus in Brazil.

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Crustacea, Isopoda, Oniscidea Latreille, 1802: new continent record and distribution extension in Brazil

Check List ◽

10.15560/6.2.217 ◽

2010 ◽

Vol 6 (2) ◽

pp. 217 ◽

Cited By ~ 8

Author(s):

Mariana Juventina Magrini ◽

Paula Beatriz Araujo ◽

Marcio Uehara-Prado

Keyword(s):

Rio Grande ◽

Sao Paulo ◽

The State ◽

Southeastern Brazil ◽

Pitfall Traps ◽

São Paulo ◽

Undescribed Species ◽

Rio Grande Do Sul ◽

Serra Do Mar ◽

First Time

Terrestrial Isopods were sampled in four protected Atlantic Forest areas located in Serra do Mar, state of São Paulo, southeastern Brazil. A total of 2,217 individuals of six species (Atlantoscia sp., Benthana werneri, Pseudodiploexochus tabularis, Pudeoniscus obscurus, Styloniscus spinosus and Trichorhina sp.) were captured in pitfall traps. The exotic species S. spinosus is recorded for the first time for the Americas. Another introduced species, P. tabularis, previously recorded only from the state of Rio Grande do Sul, had its geographic distribution extended to the state of São Paulo. The most abundant isopods in this study belong to an undescribed species of Atlantoscia.

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Acuariidae (Nematoda) in Procellariiformes (Aves) on the southern coast of Rio Grande do Sul, Brazil

Revista Brasileira de Parasitologia Veterinária ◽

10.1590/s1984-29612017073 ◽

2018 ◽

Vol 27 (1) ◽

pp. 7-11

Author(s):

Camila Costa Schramm ◽

Carolina Silveira Mascarenhas ◽

Silvia Bainy Gastal ◽

Simone Scheer ◽

Gertrud Müller ◽

...

Keyword(s):

Digestive Tract ◽

Rio Grande ◽

Southern Coast ◽

Rio Grande Do Sul ◽

Aquatic Birds ◽

Diomedea Exulans ◽

Procellaria Aequinoctialis ◽

Calonectris Borealis ◽

First Time

Abstract Acuariidae nematodes are normally found in the digestive tract of aquatic birds, including Procellariiformes. Were examined Calonectris borealis (n = 4), Diomedea exulans (n = 1), Macronectes giganteus (n = 8), Thalassarche chlororhynchos (n = 5), Thalassarche melanophrys (n = 15), Procellaria aequinoctialis (n = 4), Puffinus gravis (n = 2) and Puffinus puffinus (n = 6), collected on the southern coast of RS, Brazil. A total of 16 birds (35.5%) were parasitized by two species of Acuariidae. Stegophorus diomedeae and Seuratia shipleyi were identified, with prevalences of 26.1% and 21.7%, respectively. Few studies on nematodes in Procellariiformes have been conducted. Here, the acuariids Seuratia shipleyi in Calonectris borealis and Procellaria aequinoctialis and Stegophorus diomedeae in Diomedea exulans, Procellaria aequinoctialis and Thalassarche chlororhynchos were reported for the first time.

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New records of the occurrence of biting midges (Diptera: Ceratopogonidae) species in rural area of Santa Maria, Rio Grande do Sul, in the South of Brazil

International Journal of Tropical Insect Science ◽

10.1007/s42690-021-00708-z ◽

2022 ◽

Author(s):

Julia Somavilla Lignon ◽

Emanuelle de Souza Farias ◽

Felipe Arley Costa Pessoa ◽

Eduarda Maria Trentin Santi ◽

Lucas Alexandre Farias de Souza ◽

...

Keyword(s):

Rural Area ◽

New Records ◽

Rio Grande ◽

Rio Grande Do Sul ◽

The South ◽

Biting Midges ◽

South Of Brazil ◽

Santa Maria

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List of Odonates from the Floresta Nacional de São Francisco de Paula (FLONA - SFP), with two new distribution records for Rio Grande do Sul, Brazil

Biota Neotropica ◽

10.1590/1676-0611-bn-2015-0132 ◽

2016 ◽

Vol 16 (3) ◽

Cited By ~ 8

Author(s):

Samuel Renner ◽

Eduardo Périco ◽

Göran Sahlén

Keyword(s):

Rio Grande ◽

Rio Grande Do Sul ◽

Generalist Species ◽

Small Streams ◽

Specialist Species ◽

Ombrophilous Forest ◽

First Time ◽

Pristine Forest ◽

New Distribution ◽

Open Fields

Abstract A survey of Odonata was carried out in the National Forest FLONA - SFP, Northeastern region of the Rio Grande do Sul state, Brazil. This conservation unit is mainly covered by Mixed Ombrophilous Forest (MOF), a subtype of Atlantic Forest biome, being also areas covered in planted Pinus, planted Araucaria and open fields. Our sampling efforts were conducted in thirty aquatic environments inside this reserve during the period between January 2014 and November 2014. The sampling sites were selected randomly, comprehending lakes, bogs, small streams and river sections, all inserted in the four vegetation types occurring in the reserve. Fortysix species of Odonata were collected and grouped into 23 genera and seven families. The dominant families were Coenagrionidae (32%), Libellulidae (32%), Aeshnidae (12%), and, Calopterygidae and Lestidae (9%). As expected, the findings revealed the presence of a highly diverse Odonate assemblage, mainly represented by generalist species in the most human disturbed sectors (Pinus and Open fields) and some specialist species in the pristine forest. Two species were registered for the first time in the state of Rio Grande do Sul, Brazil: Libellula herculea Karsch, 1889 (Libellulidae) and Heteragrion luizfelipei Machado, 2006 (Heteragrionidae).

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Use of LST images from MODIS/AQUA sensor as an indication of frost occurrence in RS

Revista Brasileira de Engenharia Agrícola e Ambiental ◽

10.1590/1807-1929/agriambi.v19n10p920-925 ◽

2015 ◽

Vol 19 (10) ◽

pp. 920-925 ◽

Cited By ~ 2

Author(s):

Débora de S. Simões ◽

Denise C. Fontana ◽

Matheus B. Vicari

Keyword(s):

Spatial Distribution ◽

Land Surface Temperature ◽

Land Surface ◽

Rio Grande ◽

Rio Grande Do Sul ◽

Weather Stations ◽

Aqua Satellite ◽

South Of Brazil ◽

June July ◽

Minimum Air Temperature

ABSTRACTAlthough frost occurrence causes severe losses in agriculture, especially in the south of Brazil, the data of minimum air temperature (Tmin) currently available for monitoring and predicting frosts show insufficient spatial distribution. This study aimed to evaluate the MDY11A1 (LST – Land Surface Temperature) product, from the MODIS sensor on board the AQUA satellite as an estimator of frost occurrence in the southeast of the state of Rio Grande do Sul, Brazil. LST images from the nighttime overpass of the MODIS/AQUA sensor for the months of June, July and August from 2006 to 2012, and data from three conventional weather stations of the National Institute of Meteorology (INMET) were used. Consistency was observed between Tmin data measured in weather stations and LST data obtained from the MODIS sensor. According to the results, LSTs below 3 ºC recorded by the MODIS/AQUA sensor are an indication of a favorable scenario to frost occurrence.

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O gênero Prosopis L. (Leguminosae Mimosoideae) no Rio Grande do Sul

Ciência e Natura ◽

10.5902/2179460x25025 ◽

1983 ◽

Vol 5 (5) ◽

pp. 171

Author(s):

José Newton Cardoso Marchiori ◽

Solon J. Longhi ◽

Luiz Galvão

Keyword(s):

Rio Grande ◽

Rio Grande Do Sul ◽

First Time

In this study the two species of the genus Prosopis native to Rio Grande do Sul (Brazil), are described. They are Prosopis algarobilla Gris., named “Inhanduvá”, and the “algarrobo”- Prosopis nigra (Gris.) Hieron. Prosopis nigra is cited for the first time for theflora of Rio Grande do Sul in this work.

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