scholarly journals Injuries caused by the venomous catfish pintado and cachara (Pseudoplatystoma genus) in fishermen of the Pantanal region in Brazil

2016 ◽  
Vol 88 (3) ◽  
pp. 1531-1537 ◽  
Author(s):  
GIULIANO N.R. DE AQUINO ◽  
CELSO C. DE SOUZA ◽  
VIDAL HADDAD JUNIOR ◽  
JOSÉ SABINO
Keyword(s):  
First Aid ◽  
Fishing Activity ◽  
Mato Grosso ◽  
Level Of Education ◽  
Paraguay River ◽  
Secondary Infections ◽  
Striped Catfish ◽  
Local Necrosis ◽  
Mato Grosso Do Sul ◽  
Venomous Fish

ABSTRACT INTRODUCTION: the fishing activity throughout the Upper Paraguay River Basin has huge financial and biological importance. This retrospective study investigated the occurrence of injuries caused by fish of the Pseudoplatystoma genus (spotted catfish or pintado and striped catfish or cachara) in professional fishermen of the Pantanal of Mato Grosso do Sul State. METHODS: we collected information through a questionnaire, showing that fishing is carried out by workers with low level of education, mainly adults or seniors with low financial gains. RESULTS: in Miranda town, 126 of 315 fishermen were interviewed and 38 individuals reported injuries (30.16%). In Corumbá town, 355 of 627 fishermen were interviewed, and 111 (56,61%) reported injuries. The lacerated lesions were the most common, associate with edema, erythema, radiating pain to the root of the limb, paresthesias and local necrosis. More rarely, they reported the occurrence of fever, cardiac arrhythmias and cold sweating. These manifestations may be associated with late secondary infections or envenomations caused by the toxins in the stingers of the fish. Many questionable and inappropriate treatments are used, sometimes aggravating the injuries. CONCLUSIONS: the freshwater professional fishermen need guidance on first aid measures and prevention of accidents caused by these venomous fish.

scholarly journals Subterranean biodiversity in the Serra da Bodoquena karst area, Paraguay river basin, Mato Grosso do Sul, Southwestern Brazil

2014 ◽  
Vol 14 (3) ◽  
Author(s):  
Lívia Medeiros Cordeiro ◽  
Rodrigo Borghezan ◽  
Eleonora Trajano
Keyword(s):  
River Basin ◽  
Sustainable Use ◽  
Karst Area ◽  
Karst Aquifers ◽  
Effective Protection ◽  
Mato Grosso ◽  
Base Level ◽  
Paraguay River ◽  
Mato Grosso Do Sul ◽  
Subterranean Species

We present herein a synthesis of faunistic data from caves in the Serra da Bodoquena karst area, middle Paraguay River basin, Mato Grosso do Sul State. Those include phreatic, submerged and dry caves. Emphasis is given to troglobites (exclusively subterranean species), potentially threatened due to their morphological, physiological and behavioral specializations, associated to generally small distributions. The Bodoquena karst area distinguishes as a spot of high diversity of troglobites, such as trichomycterid and heptapterid catfishes, aquatic planarians and gastropods, arachnids (Eusarcus opilionids, ctenid spiders), Polydesmida diplopods, several collembolans, some insects, and Peracarida crustaceans, which include interesting phylogenetic relicts as spelaeogriphaceans. Four geographic compartments corresponding to microbasins, seemingly with biogeographic importance for the subterranean fauna, are recognized. Phreatobic troglobites (Trichomycterus catfishes, aquatic peracarids, planarians) distribute widely across these compartments and some well beyond (the spelaeogriphacean Potiicoara brasiliensis reaches Mato Grosso state), while those living in base-level streams (Rhamdia and Ancistrus catfishes) and the terrestrial ones, that live in the vadose (aerated zone) are generally restricted to one compartment. Many subterranean ecosystems in Mato Grosso do Sul are endangered by several threats described here and urgent actions for effective protection are required to guarantee a sustainable use of the land and the karst aquifers.

scholarly journals First record of Trypanosoma sp. (Protozoa: Kinetoplastida) in tuvira (Gymnotus aff. inaequilabiatus) in the Pantanal wetland, Mato Grosso do Sul State, Brazil

2011 ◽  
Vol 20 (1) ◽  
pp. 85-87 ◽  
Author(s):  
Santiago Benites de Pádua ◽  
Márcia Mayumi Ishikawa ◽  
Fabiana Satake ◽  
Gabriela Tomas Jerônimo ◽  
Fabiana Pilarski
Keyword(s):  
Prevalence Rate ◽  
First Record ◽  
Diagnostic Methods ◽  
Mato Grosso ◽  
First Report ◽  
Paraguay River ◽  
Blood Smears ◽  
Mato Grosso Do Sul ◽  
Pantanal Wetland ◽  
Blood Centrifugation

The blood infection by Trypanosoma sp. in tuvira (Gymnotus aff. inaequilabiatus) from the Pantanal wetland was reported in this study. Ten fish from the Paraguay River in the Pantanal were evaluated for the presence of hemoflagellates. Trypomastigotes of Trypanosoma sp. were observed in blood smears from three fish (30% prevalence) and some forms were seen to be undergoing division. Using the diagnostic methods of fresh examination and blood centrifugation in hematocrit capillary tubes, the prevalence rate was 80%. This is the first report of Trypanosoma sp. in tuvira in Brazil.

scholarly journals Mollusca, Gastropoda, Succineidae, Omalonyx unguis (d’Orbigny, 1835): distribution extension and new records for Brazil

Check List ◽  
2011 ◽  
Vol 7 (4) ◽  
pp. 400 ◽  
Author(s):  
Daniel Coscarelli ◽  
Teofânia H. D. A. Vidigal
Keyword(s):  
Reproductive System ◽  
New Records ◽  
Comparative Morphology ◽  
Paraná River ◽  
Mato Grosso ◽  
Parana River ◽  
Paraguay River ◽  
Mato Grosso Do Sul

Omalonyx unguis was previously known to occur in Argentina, Paraguay and Uruguay. We report the first conclusive record of occurrence of this species in Brazil, based on specimens collected in three localities in the Paraguay River sub-basin (Mato Grosso do Sul state – Campo Grande and Miranda; Mato Grosso state – Poconé), and in the Brazilian margin of the Paraná River (Foz do Iguaçu, Paraná State). The species was identified by comparative morphology of the reproductive system, and a map that synthesizes the literature and reports new records is presented.

Exploration for natural enemies of the cassava mealybug, Phenacoccus manihoti (Homoptera: Pseudococcidae), in South America for the biological control of this introduced pest in Africa

1990 ◽  
Vol 80 (4) ◽  
pp. 417-425 ◽  
Author(s):  
B. Löhr ◽  
A.M. Varela ◽  
B. Santos
Keyword(s):  
Natural Enemies ◽  
Mass Rearing ◽  
Phenacoccus Manihoti ◽  
International Institute ◽  
Mato Grosso ◽  
Cassava Mealybug ◽  
Paraguay River ◽  
Introduced Pest ◽  
Mato Grosso Do Sul ◽  
Ibadan Nigeria

AbstractAreas in Argentina, Bolivia, Brazil and Paraguay were searched for the cassava mealybug, Phenacoccus manihoti Matile-Ferrero. The mealybug was located in the Paraguay River basin in the Santa Cruz de la Sierra area of eastern Bolivia, the Mato Grosso do Sul state in South-Western Brazil and in Paraguay east of the Paraguay River. Mealybug populations were extremely low in all areas but there was a period of increase from August to December. Eighteen species of natural enemies were found attacking P. manihoti: the most abundant and also most important were a solitary, internal parasitoid, Epidinocarsis lopezi (DeSantis) (Hymenoptera: Encyrtidae), Hyperaspis notata Mulsant and Diomus spp. (Coleoptera: Coccinellidae), and Ocyptamus spp. (Diptera: Syrphidae). Collections of a closely related mealybug, Phenacoccus herreni Cox & Williams yielded two additional encyrtid parasitoids, Epidinocarsis diversicornis (Howard) and Aenasius sp. nr vexans Kerrich, but they did not survive on P. manihoti. Four parasitoids (E. lopezi, E. diversicornis, Parapyrus manihoti Noyes and Allotropa sp.) and four predators (H. notata, Diomus sp., Sympherobius maculipennis Kimmins, and Exochomus sp.) were sent for quarantine. With the exception of Parapyrus manihoti, all mentioned natural enemy species were forwarded to the International Institute of Tropical Agriculture at Ibadan, Nigeria for mass rearing and subsequent release.

scholarly journals Constitutive heterochromatin heteromorphism in the Neotropical armored catfish Hypostomus regani (Ihering, 1905) (Loricariidae, Hypostominae) from the Paraguay River basin (Mato Grosso do Sul, Brazil)

2019 ◽  
Vol 13 (1) ◽  
pp. 27-39 ◽  
Author(s):  
Greicy Ellen de Brito Ferreira ◽  
Ligia Magrinelli Barbosa ◽  
Ana Camila Prizon-Nakajima ◽  
Suzana de Paiva ◽  
Margarida Maria de Rossi Vieira ◽  
...  
Keyword(s):  
River Basin ◽  
Constitutive Heterochromatin ◽  
5S Rdna ◽  
Pericentromeric Region ◽  
The Novel ◽  
Chromosome Microdissection ◽  
Dapi Staining ◽  
Mato Grosso ◽  
Paraguay River ◽  
Mato Grosso Do Sul

A cytogenetic analysis based on the integration of a number of different chromosomal methodologies, including chromosome microdissection was carried out to characterize the chromosomally polymorphic Hypostomusregani population from the Paraguay River basin, state of Mato Grosso do Sul in Brazil. All specimens had 2n=72 (FN=116) but two distinct karyotype formulas: karyomorph A (12m+14sm+18s+28a) and karyomorph B (13m+14sm+17st+28a). Karyomorph A and B differed only for pair 19 that consisted of two subtelocentrics in karyomorph A and a large metacentric and a subtelocentric in karyomorph B. This heteromorphism was due to extensive heterochromatinization of the short arm of the large metacentric, as highlighted by C-banding. The microdissection of the large metacentric of pair 19 allowed the production of a probe, named HrV (Hypostomusregani Variant), that hybridized to the whole p arm of the large metacentric and the pericentromeric region of the short arm of its (subtelocentric) homologue (karyomorph B) and of both homologs of pair 19 in karyomorph A. Additional cytogenetic techniques (FISH with 18S and 5S rDNA probes, CMA3 and DAPI staining) allowed a finer distinction of the two karyomorphs. These results reinforced the hypothesis that the novel large metacentric of H.regani (karyomorph B) was the result of the amplification of heterochromatin segments, which contributed to karyotypic diversification in this species.

scholarly journals Ancistrus cuiabae Knaack, 1999 (Siluriformes: Loricariidae: Ancistrinae): first record for the Southern Pantanal

Check List ◽  
2014 ◽  
Vol 10 (2) ◽  
pp. 380
Author(s):  
Francisco Severo-Neto ◽  
Priscilla Soares Dos Santos ◽  
Eurico A. Sczeny-Moraes ◽  
Fernando Paiva
Keyword(s):  
River Basin ◽  
First Record ◽  
The State ◽  
Mato Grosso ◽  
Paraguay River ◽  
Mato Grosso Do Sul

Ancistrus cuiabae, an easily identified species of armored catfish from the Upper Paraguay River basin has recently been described from the Cuiabá River basin. Its distribution was previously restricted to the state of Mato Grosso. However, here we report the southernmost record of this species, the first within the Mato Grosso do Sul State.

scholarly journals Anurans of a threatened savanna area in western Brazil

2014 ◽  
Vol 14 (1) ◽  
Author(s):  
José Luiz Massao Moreira Sugai ◽  
Juliana de Souza Terra ◽  
Vanda Lúcia Ferreira
Keyword(s):  
South America ◽  
River Basin ◽  
Rainy Season ◽  
Conservation Priorities ◽  
Sampling Effort ◽  
Aquatic Habitats ◽  
Mato Grosso ◽  
Paraguay River ◽  
The World ◽  
Mato Grosso Do Sul

The Upper Paraguay River Basin is located in the center of South America and harbors one of the largest wetland in the world, known as Pantanal. This floodplain is surrounded by uplands, which presently have most of their area converted into pastures or monocultures, besides being poorly known scientifically. Also, most of these upland areas are considered conservation priorities. Here we present a list of anuran species from a savanna-like area (municipality of Camapuã, state of Mato Grosso do Sul, Brazil) inserted in the uplands surrounding the Pantanal floodplain, in the Upper Taquari River sub-basin, and evaluate the effectiveness of the sampling effort. Data were obtained through active searches in 22 plots in aquatic habitats, during the rainy season (from December 2009 to April 2010). We found 26 species, in four families. Although sampling effort was found to sufficiently represent the local anuran assemblage, future inventories in this region should ideally include samplings during the dry and early rainy seasons, and include both active and passive capturing methods.

scholarly journals Bat-species richness in the Pantanal floodplain and its surrounding uplands

2011 ◽  
Vol 71 (1 suppl 1) ◽  
pp. 311-320 ◽  
Author(s):  
CJR. Alho ◽  
E. Fischer ◽  
LF. Oliveira-Pissini ◽  
CF. Santos
Keyword(s):  
Data Bank ◽  
Common Species ◽  
Forest Patches ◽  
Mato Grosso ◽  
Paraguay River ◽  
Glossophaga Soricina ◽  
Molossus Molossus ◽  
Artibeus Lituratus ◽  
First Time ◽  
Mato Grosso Do Sul

We studied the bat fauna of the Pantanal floodplain and its surrounding plateaus in Mato Grosso do Sul, Brazil, based on the scientific collection at Universidade Anhanguera - Uniderp and on the Projeto Morcegos do Pantanal data bank at UFMS, comprising 9,037 captures of 56 species recorded from 1994 to 2007. The Pantanal surveys were carried out in the Nhecolândia, Aquidauana, Miranda, and Paraguai sub-regions; the uplands surveys took place in the Maracaju, Bodoquena, and Urucum formations. Bat specimens were mist-netted over 376 nights in 35 sites, predominantly near fruiting trees, bat shelters, and forest patches. In the floodplain 46 species were recorded (n = 6,292 individuals), and 44 species were found in the uplands (n = 2,745 individuals). Six families were recorded: Phyllostomidae (30 species), Molossidae (12 species), Verpertilionidae (nine species) Noctilionidae (two species), Emballorunidae (two species) and Mormoopidae (one species). The bat fauna was predominantly composed of insectivore (32) and frugivore (15) species. The frugivorous Artibeus planirostris (n = 3,101 individuals) was the commonest species in floodplain and uplands. Other common species were Myotis nigricans (n = 762), Molossus molossus (n = 692), Noctilio albiventris (n = 681), Platyrrhinus lineatus (n = 633), Sturnira lilium (n = 461), Carollia perspicillata (n = 451), Glossophaga soricina (n = 436), Artibeus lituratus (n = 320), and Desmodus rotundus (n = 281). In the floodplain there were three insectivores among the most common species, contrasting with the uplands dominated by the frugivores. The diversity for the 35 sites assembled (H' = 2.5) is comparable to that recorded for tropical forests. The bat fauna presented here represents 34% of the Brazilian bat species, and 62% of species reported for the Upper Paraguay River Basin. Additionally, five species are reported for the first time in Mato Grosso do Sul.

scholarly journals Juveniles of the piscivorous dourado Salminus brasiliensis mimic the piraputanga Brycon hilarii as an alternative predation tactic

2011 ◽  
Vol 9 (2) ◽  
pp. 351-354 ◽  
Author(s):  
Eduardo Bessa ◽  
Lucélia Nobre Carvalho ◽  
José Sabino ◽  
Paola Tomazzelli
Keyword(s):  
River Basin ◽  
Headwater Streams ◽  
Observation Time ◽  
Body Colour ◽  
Clear Water ◽  
Mato Grosso ◽  
Total Length ◽  
Paraguay River ◽  
Mato Grosso Do Sul ◽  
Salminus Brasiliensis

In the district of Bom Jardim, in Nobres, Mato Grosso State, Brazil, there are clear water streams originating on karstic terrain. The dourado, Salminus brasiliensis, is an apex stalking predator in these streams. In clear waters, where visually oriented prey may perceive predator in advance, surprise is needed for successful attacks. These streams are cohabited by other Characiformes, like the frugivorous piraputanga Brycon hilarii, which lives in schools and exhibits body colour and shape similar to the dourados. Here we describe an alternative predatory tactic for juvenile dourado occurring in headwater streams of the Paraguay River basin, in which they act as an aggressive mimic of the piraputanga. Based on 43 h of observations in Bom Jardim, and on additional 11 h in the Bodoquena Plateau Rivers of Mato Grosso do Sul State, we quantified the number of rushes by dourados when they were among piraputangas or foraging alone, and observed the proportion of piraputangas per dourado in multispecific schools. Dourados of up to 30 cm total length (TL) stayed among the piraputangas of similar size hiding within the school and going to the periphery of the school before rushing against prey. The dourados exhibited colours similar to the piraputangas. They not only stayed longer among piraputangas (78% of the observation time), but also rushed against prey more often than when foraging alone (53 rushes/h against 14 rushes/h, respectively).

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