A. Antonucci, R. M. Takemoto, Fernanda Menezes França, Patrícia CoelhoTeixeira, Cláudia Maris Ferreira
Most parasites represent a serious socioeconomic problem, because they affect pets, commercially raised, wild, and zoonotic animals. Weight loss, growth retardation, predisposition to other diseases and death are symptoms presented by the parasitized animals. The aim of this study was to evaluate the helminth fauna in bull-frog Lithobates catesbeianus raised for sale. We worked with five frog farms in the Vale do Paraiba, Sao Paulo, Brazil, and examined a total of 185 animals. The autopsies were performed, and all bodies that may have parasites were examined. Diagnostic parasitology tests were also performed. We found one species of nematode, Longibucca catesbeianae, with a prevalence of 1.7%, mean abundance of 14.16 and an average intensity of 850 (with a range of 729 to 1014). Given that most studies of parasitology in amphibians is conducted in free-living animals, more research on frogs in captivity should be performed to better understand these pests and prevent future problems in the operations frog farm.
{"title":"LONGIBUCCA CATESBEIANAE (NEMATODA: CYLINDROCORPORIDAE) EN LA RANA-TORO LITHOBATES CATESBEIANUS (ANURA: AMPHIBIA) DE LAS GRANJAS DE RANAS EN EL ESTADO DE SÃO PAULO, BRASIL","authors":"A. Antonucci, R. M. Takemoto, Fernanda Menezes França, Patrícia CoelhoTeixeira, Cláudia Maris Ferreira","doi":"10.24039/RNH2012621011","DOIUrl":"https://doi.org/10.24039/RNH2012621011","url":null,"abstract":"Most parasites represent a serious socioeconomic problem, because they affect pets, commercially raised, wild, and zoonotic animals. Weight loss, growth retardation, predisposition to other diseases and death are symptoms presented by the parasitized animals. The aim of this study was to evaluate the helminth fauna in bull-frog Lithobates catesbeianus raised for sale. We worked with five frog farms in the Vale do Paraiba, Sao Paulo, Brazil, and examined a total of 185 animals. The autopsies were performed, and all bodies that may have parasites were examined. Diagnostic parasitology tests were also performed. We found one species of nematode, Longibucca catesbeianae, with a prevalence of 1.7%, mean abundance of 14.16 and an average intensity of 850 (with a range of 729 to 1014). Given that most studies of parasitology in amphibians is conducted in free-living animals, more research on frogs in captivity should be performed to better understand these pests and prevent future problems in the operations frog farm.","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128654586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
espanolThe aim of the present study is to report the occurrence of Styphlotrema solitaria Looss, 1899 infecting sea turtles of the species Eretmochelys imbricata Linnaeus, 1758 found in the North Coast of Sao Paulo State, Brazil. Only nine S. solitaria specimens were found in the hosts studied, with a mean intensity of infection of 4.5. Since 2002, 14 specimens of E. imbricata from this region were necropsied and the prevalence of S. solitaria was 14.2%. New variations on morphological data were presented for this digenetic species. This is the first occurrence of S. solitaria in sea turtles from Brazilian Coast, expanding the information on the helminth fauna of E. imbricata and the geographical distribution of S. solitaria. EnglishEl objetivo de esta investigacion es presentar la ocurrencia de Styphlotrema solitaria Looss, 1899 en las tortugas marinas de la especie Eretmochelys imbricata Linnaeus 1758 encontradas en el litoral Norte del Estado de Sao Paulo, Brasil. Apenas nueve especimenes fueron encontrados en los hospederos analizados correspondiendo a una intensidad media de 4,5. Desde el ano de 2002, 14 ejemplares de E. imbricata provenientes de esta misma region fueron necropsiados lo que corresponde a una prevalencia de 14,2 %. Nuevas variaciones y datos morfologicos se presentan para esta especie de digeneo. Esta es la primera ocurrencia de S. solitaria en las tortugas marinas encontradas en el litoral brasileno, ampliando asi la informacion sobre la helmintofauna de E. imbricata y distribucion geografica de S. solitaria.
本研究的目的是报告在巴西圣保罗州北海岸发现的Eretmochelys imbricata Linnaeus, 1758种海龟中发生的Styphlotrema solitaria loos, 1899感染。在被研究的宿主中仅发现9个孤孢子虫标本，平均感染强度为4.5。自2002年以来，该地区共检获褐毛棘螨14份，褐毛棘螨感染率为14.2%。该遗传种的形态数据出现了新的变化。这是首次在巴西海岸的海龟中发现独角螺，进一步扩大了独角螺蠕虫区系和地理分布的资料。【中文】目的:对巴西圣保罗北部沿海地区的树木进行调查，发现于1899年的一种植物，特别是在巴西的一种植物中，发现于1758年的一种植物。Apenas是一种新技术，可用于分析、通信和其他内部媒体(4、5)。Desde el另2002,14《德大肠imbricata provenientes de esta堂吉诃德地区fueron necropsiados瞧此时una prevalencia de 14, 2%。数据形态上的新变化，特别是数据形态上的新变化。本文从地理分布的角度分析了柽柳在沿海地区的主要分布特征，并对柽柳的分布特征进行了进一步的研究。
{"title":"INFECCIÓN POR STYPHLOTREMA SOLITARIA LOOSS, 1899 (DIGENEA, STYPHLOTREMATIDAE) EN ERETMOCHELYS IMBRICATA LINNAEUS 1758 (TESTUDINES, CHELONIDAE) EN BRASIL","authors":"Max Rondon Werneck, Reinaldo José da Silva","doi":"10.24039/RNH2012611003","DOIUrl":"https://doi.org/10.24039/RNH2012611003","url":null,"abstract":"espanolThe aim of the present study is to report the occurrence of Styphlotrema solitaria Looss, 1899 infecting sea turtles of the species Eretmochelys imbricata Linnaeus, 1758 found in the North Coast of Sao Paulo State, Brazil. Only nine S. solitaria specimens were found in the hosts studied, with a mean intensity of infection of 4.5. Since 2002, 14 specimens of E. imbricata from this region were necropsied and the prevalence of S. solitaria was 14.2%. New variations on morphological data were presented for this digenetic species. This is the first occurrence of S. solitaria in sea turtles from Brazilian Coast, expanding the information on the helminth fauna of E. imbricata and the geographical distribution of S. solitaria. EnglishEl objetivo de esta investigacion es presentar la ocurrencia de Styphlotrema solitaria Looss, 1899 en las tortugas marinas de la especie Eretmochelys imbricata Linnaeus 1758 encontradas en el litoral Norte del Estado de Sao Paulo, Brasil. Apenas nueve especimenes fueron encontrados en los hospederos analizados correspondiendo a una intensidad media de 4,5. Desde el ano de 2002, 14 ejemplares de E. imbricata provenientes de esta misma region fueron necropsiados lo que corresponde a una prevalencia de 14,2 %. Nuevas variaciones y datos morfologicos se presentan para esta especie de digeneo. Esta es la primera ocurrencia de S. solitaria en las tortugas marinas encontradas en el litoral brasileno, ampliando asi la informacion sobre la helmintofauna de E. imbricata y distribucion geografica de S. solitaria.","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132811020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Iannacone, L. Alvariño, Jorge Cárdenas-Callirgos
Soil contaminated with helminth parasites of animals can pose risks of zoonoses to humans. It is important to determine the transmission dynamics of embryonated eggs of Toxocara canis (Werner, 1782). The aim of this study was to evaluate soil contamination by T. canis eggs in public parks in the district of Santiago de Surco, Lima, Peru in 2007 and 2008. The study was descriptive, longitudinal and comparative. Soil samples were evaluated in November-2007 (spring, n = 39), June-2008 (autumn, n = 37) and November-2008 (spring, n = 41); a total of 117 samples of soil (n = 84) and grass (n = 33) from 51 public parks representing the district of Santiago de Surco, Lima, Peru. At each site we measured the area of the park, collecting between 1 to 1.5 kg of soil sample into five equidistant points (four laterals and one central) at a depth of 5 cm. The samples were stored at room temperature for parasitological examination for 2-3 days and 7 days for physicochemical characterization: pH and particle size (texture). The samples were analyzed using the method with supersaturated solution of sodium chloride (NaCl) (Willis-Molloy) for egg flotation. Eggs of T. canis were found in 69.2% (81/117) of the samples. 73.8% (62/84) of soil samples and 57.6% (19/33) of the grass samples were positive for T. canis. The presence of T. canis showed significant differences and the following sequence according to sampling: Spring 2007 (85.4%), spring 2008 (82.1%), autumn 2008 (37.8%). No relationship was found between pH and particle size in the presence of T. canis. No differences were observed between the presence of eggs in the grass and soil of public parks studied. An analysis of 40 references from 11 Latin American countries showed that the average prevalence of soil with eggs of Toxocara sp. was 46.9% ± 23.2% and the average number of samples examined was 144 ± 202. Public parks are areas of risk of zoonosis by nematoda ascaroidea.
{"title":"Contaminación de los suelos con huevos de Toxocara Canis en parques públicos de Santiago de Surco, Lima, Perú 2007 - 2008.","authors":"J. Iannacone, L. Alvariño, Jorge Cárdenas-Callirgos","doi":"10.24039/RNH2012611000","DOIUrl":"https://doi.org/10.24039/RNH2012611000","url":null,"abstract":"Soil contaminated with helminth parasites of animals can pose risks of zoonoses to humans. It is important to determine the transmission dynamics of embryonated eggs of Toxocara canis (Werner, 1782). The aim of this study was to evaluate soil contamination by T. canis eggs in public parks in the district of Santiago de Surco, Lima, Peru in 2007 and 2008. The study was descriptive, longitudinal and comparative. Soil samples were evaluated in November-2007 (spring, n = 39), June-2008 (autumn, n = 37) and November-2008 (spring, n = 41); a total of 117 samples of soil (n = 84) and grass (n = 33) from 51 public parks representing the district of Santiago de Surco, Lima, Peru. At each site we measured the area of the park, collecting between 1 to 1.5 kg of soil sample into five equidistant points (four laterals and one central) at a depth of 5 cm. The samples were stored at room temperature for parasitological examination for 2-3 days and 7 days for physicochemical characterization: pH and particle size (texture). The samples were analyzed using the method with supersaturated solution of sodium chloride (NaCl) (Willis-Molloy) for egg flotation. Eggs of T. canis were found in 69.2% (81/117) of the samples. 73.8% (62/84) of soil samples and 57.6% (19/33) of the grass samples were positive for T. canis. The presence of T. canis showed significant differences and the following sequence according to sampling: Spring 2007 (85.4%), spring 2008 (82.1%), autumn 2008 (37.8%). No relationship was found between pH and particle size in the presence of T. canis. No differences were observed between the presence of eggs in the grass and soil of public parks studied. An analysis of 40 references from 11 Latin American countries showed that the average prevalence of soil with eggs of Toxocara sp. was 46.9% ± 23.2% and the average number of samples examined was 144 ± 202. Public parks are areas of risk of zoonosis by nematoda ascaroidea.","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"405 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127597550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
espanolEn el presente trabajo se describe e ilustra una nueva especie, parasita del estomago de la anchoa de rio Lycengraulis grossidens (Agassiz, 1829) en el estuario de Bahia Blanca y el rio Parana, Argentina, proponiendo su denominacion como Stomachicola lycengraulidis n. sp. El nuevo taxon se diferencia de sus congeneres del golfo de Guinea y oceano Indico, S. bayagbonai y S. singhi, respectivamente, principalmente en la estructura del aparato reproductor, el desarrollo del ecsoma y del saco del sinus. De la primera de ellas se distingue principalmente por la presencia de dos protuberancias frontales a nivel del lobulo preoral, ausentes en los especimenes estudiados. Ademas en terminos generales S. bayagbonai comprende individuos ligeramente mas grandes con faringe, testiculos y ovarios de mayor tamano. Yse distingue de S. singhi por el ducto y saco hermafrodita mas pequenos y poseer un receptaculo seminal bien desarrollado, ausente en los especimenes de la Bahia de Bengala. Cuando se comparo el tamano relativo del ecsoma, se encontraron diferencias significativas entre ambas poblaciones de digeneos examinadas, siendo que los especimenes colectados en el Rio Parana tenian un mayor desarrollo que aquellos obtenidos en el estuario de Bahia Blanca. El hospedador, L. grossidens, migra hacia el rio Parana en invierno y primavera y luego, desde diciembre a marzo, realiza migraciones troficas hacia el mar y se lo encuentra a todo lo largo de la costa de la Provincia de Buenos Aires. Por esta razon, aqui se hipotetiza que el desarrollo de la cola es afectado por condiciones ambientales, tales como el pH y la osmolaridad del estomago, asi como la salinidad o temperatura del agua. EnglishThis paper describes and illustrates a new species of digenetic trematode, parasitic in the stomach of the sabretooth anchovy Lycengraulis grossidens (Agassiz, 1829) from the Bahia Blanca estuary and the Parana River, Argentina, designated as Stomachicola lycengraulidis n.sp. The new taxon differs from S. bayagbonai and S. singhi congeneric species from the Gulf of Guinea and Indian Ocean respectively, mainly in the body size, the structure of the reproductive system, the development of the ecsoma and the sinus sac. It differs from the first one mainly in the presence of two frontal protuberances at the level of the preoral lobe, which are absent in the specimens studied here. Also in general terms, S. bayagbonai is comprised of slightly larger individuals, with larger pharynx, testicles and ovary. And it differs from S. singhi by their smaller duct and hermaphroditic sac and for having a well developed seminal receptacle, which is absent in the Bay of Bengal specimens. When comparing the relative size of the ecsoma, we found significant differences among both of the populations of digeneans examined, the worms collected in the Parana River was more developed than those from the Bahia Blanca estuary. The host, L. grossidens, migrates to the Parana river in winter and s
espanolEn本工作描述和演示了一个新的物种,parasita鳀鱼的胃在里约热内卢Lycengraulis grossidens (Agassiz, 1829年)在河口Bahia Blanca和河里的Parana,阿根廷提出的denominacion Stomachicola lycengraulidis n .属新几内亚及其海湾congeneres taxon区别和海洋的s . bayagbonai和s分别singhi,特别是在生殖系统的结构,外体细胞和窦囊的发育。第一种主要的区别在于在口前叶水平处存在两个额突起，这在研究的标本中是没有的。此外，一般来说，S. bayagbonai包括稍大的个体，有较大的咽、睾丸和卵巢。它与S. singhi的区别在于更小的雌雄同体的管和囊，以及发育良好的种子受体，这在孟加拉湾的标本中是不存在的。在本研究中，我们分析了在巴拉那河和巴伊亚布兰卡河口采集的两种digeneos种群之间的相对ecsoma大小差异。寄主L. grossidens在冬季和春季迁移到巴拉那河，然后从12月到3月进行营养迁移到海洋，在布宜诺斯艾利斯省的整个海岸都能找到它。因此，这里假设尾巴的发育受到环境条件的影响，如胃的pH值和渗透压，以及水的盐度或温度。这篇论文描述和说明了一种新的digenetic吸虫，寄生在阿根廷Bahia Blanca河口和巴拉那河的sabretooth anchovy Lycengraulis grossidens (Agassiz, 1829)的胃里，指定为Stomachicola lycengraulidis n.sp。The new taxon differs from s . bayagbonai足singhi congeneric species from The Gulf of几内亚和印度洋respectively mainly in The body size, The structure of The生殖系统,The development of The ecsoma and The sinus sac。= =地理= =根据美国人口普查，这个县的面积为，其中土地面积为，其中土地面积为。= =地理= =根据美国人口普查，这个县的面积为，其中土地面积为，其中土地面积为。And it differs from s . singhi by their smaller duct And hermaphroditic sac为a well发达精囊receptacle, which is absent in the Bay of Bengal标本。在比较ecsoma的相对大小时，我们发现两个digeneans种群之间存在显著差异，在巴拉那河收集的蠕虫比在Bahia Blanca河口收集的蠕虫更发展。它在冬季和春季迁移到巴拉那河，然后从12月到3月进行营养迁移到海洋，在布宜诺斯艾利斯的大西洋海岸发现。For this reason, it is here hypothesized that the: development of the尾等环境条件影响,is,进行pH and osmolarity of the stomach, salinity and / or water temperature。
{"title":"STOMACHICOLA LYCENGRAULIDIS N. SP. (DIGENEA, HEMIURIDAE), PARASITE OF THE ATLANTIC SABRETOOTH ANCHOVY LYCENGRAULIS GROSSIDENS (CLUPEIFORMES, ENGRAULIDAE)","authors":"R. Tanzola, S. Seguel","doi":"10.24039/RNH201261996","DOIUrl":"https://doi.org/10.24039/RNH201261996","url":null,"abstract":"espanolEn el presente trabajo se describe e ilustra una nueva especie, parasita del estomago de la anchoa de rio Lycengraulis grossidens (Agassiz, 1829) en el estuario de Bahia Blanca y el rio Parana, Argentina, proponiendo su denominacion como Stomachicola lycengraulidis n. sp. El nuevo taxon se diferencia de sus congeneres del golfo de Guinea y oceano Indico, S. bayagbonai y S. singhi, respectivamente, principalmente en la estructura del aparato reproductor, el desarrollo del ecsoma y del saco del sinus. De la primera de ellas se distingue principalmente por la presencia de dos protuberancias frontales a nivel del lobulo preoral, ausentes en los especimenes estudiados. Ademas en terminos generales S. bayagbonai comprende individuos ligeramente mas grandes con faringe, testiculos y ovarios de mayor tamano. Yse distingue de S. singhi por el ducto y saco hermafrodita mas pequenos y poseer un receptaculo seminal bien desarrollado, ausente en los especimenes de la Bahia de Bengala. Cuando se comparo el tamano relativo del ecsoma, se encontraron diferencias significativas entre ambas poblaciones de digeneos examinadas, siendo que los especimenes colectados en el Rio Parana tenian un mayor desarrollo que aquellos obtenidos en el estuario de Bahia Blanca. El hospedador, L. grossidens, migra hacia el rio Parana en invierno y primavera y luego, desde diciembre a marzo, realiza migraciones troficas hacia el mar y se lo encuentra a todo lo largo de la costa de la Provincia de Buenos Aires. Por esta razon, aqui se hipotetiza que el desarrollo de la cola es afectado por condiciones ambientales, tales como el pH y la osmolaridad del estomago, asi como la salinidad o temperatura del agua. EnglishThis paper describes and illustrates a new species of digenetic trematode, parasitic in the stomach of the sabretooth anchovy Lycengraulis grossidens (Agassiz, 1829) from the Bahia Blanca estuary and the Parana River, Argentina, designated as Stomachicola lycengraulidis n.sp. The new taxon differs from S. bayagbonai and S. singhi congeneric species from the Gulf of Guinea and Indian Ocean respectively, mainly in the body size, the structure of the reproductive system, the development of the ecsoma and the sinus sac. It differs from the first one mainly in the presence of two frontal protuberances at the level of the preoral lobe, which are absent in the specimens studied here. Also in general terms, S. bayagbonai is comprised of slightly larger individuals, with larger pharynx, testicles and ovary. And it differs from S. singhi by their smaller duct and hermaphroditic sac and for having a well developed seminal receptacle, which is absent in the Bay of Bengal specimens. When comparing the relative size of the ecsoma, we found significant differences among both of the populations of digeneans examined, the worms collected in the Parana River was more developed than those from the Bahia Blanca estuary. The host, L. grossidens, migrates to the Parana river in winter and s","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"142 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114537018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
An amateur in Lima, Peru that deals with the breeding of varieties of the ornamental fish, Golden carp (Carassius auratus), reported high occurrence of mortalities, 60%-70% of 2000 specimens in a few days. Of these, 15 specimens (varieties of black telescope, oranda, red cap, lion's head and green coral) were selected in order to study and evaluate the gills and skin. Adult mobile spores and different juvenile stages of Ichthyophthirius multifiliis "Ich", were found. The �disease of the white point� was also observed in the presence of monogenean Gyrodactylus sp. and Dactylogyrus sp. Protozoans and monogeneans were found to be the cause of mortality that also provoked an increase of mucus in the gills as well as a strong detachment of the epidermis and the loss of the caudal fin. Only one specimen was found with hemorrhage in the bottom of the left eyeball. In order to control mortality, we applied diluted formaldehyde, potassium permanganate and methylene blue. The best survival was obtained with the formaldehyde treatment. In the Laboratory of Aquatic Biopathology of the Faculty of Fisheries (UNALM), three specimens were placed in a fish tank with saline solution; Three days later, the presence of large amounts of yellowish balls and numerous mobile young spores of the "Ich" were observed on the surface of the aquarium. Furthermore, specimens of Zschokkella sp. were found in the gallbladder; Thellohanellus sp. in both gills and internal structures. Hyphae of unidentified fungi were also found inside the liver of some fishes. The parasites in C. auratus, the life cycle of I. multifiliis , its histological alterations, and the success in treatment with formaldehyde are reported for the first time.
{"title":"Parasitofauna en variedades del pez ornamental Carassius auratus y descripción del ciclo biológico de Ichthyophthirius multifiliis (Ciliatea, Ichthyophthiriidae), causante de mortalidades en un criadero de Lima, Perú, 2007","authors":"Julio G. Gonzáles-Fernández","doi":"10.24039/RNH201261999","DOIUrl":"https://doi.org/10.24039/RNH201261999","url":null,"abstract":"An amateur in Lima, Peru that deals with the breeding of varieties of the ornamental fish, Golden carp\u0000(Carassius auratus), reported high occurrence of mortalities, 60%-70% of 2000 specimens in a few\u0000days. Of these, 15 specimens (varieties of black telescope, oranda, red cap, lion's head and green coral)\u0000were selected in order to study and evaluate the gills and skin. Adult mobile spores and different\u0000juvenile stages of Ichthyophthirius multifiliis \"Ich\", were found. The �disease of the white point� was\u0000also observed in the presence of monogenean Gyrodactylus sp. and Dactylogyrus sp. Protozoans and\u0000monogeneans were found to be the cause of mortality that also provoked an increase of mucus in the\u0000gills as well as a strong detachment of the epidermis and the loss of the caudal fin. Only one specimen\u0000was found with hemorrhage in the bottom of the left eyeball. In order to control mortality, we applied\u0000diluted formaldehyde, potassium permanganate and methylene blue. The best survival was obtained\u0000with the formaldehyde treatment. In the Laboratory of Aquatic Biopathology of the Faculty of\u0000Fisheries (UNALM), three specimens were placed in a fish tank with saline solution; Three days later,\u0000the presence of large amounts of yellowish balls and numerous mobile young spores of the \"Ich\" were\u0000observed on the surface of the aquarium. Furthermore, specimens of Zschokkella sp. were found in the\u0000gallbladder; Thellohanellus sp. in both gills and internal structures. Hyphae of unidentified fungi were\u0000also found inside the liver of some fishes. The parasites in C. auratus, the life cycle of I. multifiliis , its\u0000histological alterations, and the success in treatment with formaldehyde are reported for the first time.","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134379721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Amanda Nascimento Martins, Cláudia da Silveira de São Sabas, Marilia de Carvalho Brasil-Sato
Prosthenhystera obesa (Diesing, 1850) (Digenea, Callodistomidae), parasitizes the gall bladder of freshwater fish and was first found in Leporinus reinhardti Lutken, 1875 (Characiformes, Anostomidae) and Pimelodus pohli Ribeiro & Lucena, 2006 (Siluriformes, Pimelodidae). These omnivorous fish were collected in the upper Sao Francisco River, Minas Gerais, Brazil. prevalence (%) and mean abundance of P. obesa were 1.58% and 0.02 ± 0.127 in L. reinhardti, and 3.85% and 0.04 ± 0.196 in P. pohli, respectively. Prosthenhystera obesa has already been reported in a carnivorous characin Salminus franciscanus Lima & Britski, 2007 and in an omnivorous pimelodid Pimelodus maculatus Lacepede, 1803 both in the Sao Francisco River, but their ecological parameters are here presented for the first time together with the data for L. reinhardti and P. pohli, two new hosts in the Neotropical Region. The ecological descriptors of P. obesa were similar, i. e., they were low in all fish of the Sao Francisco River and also in most fish from different hydrographic basins in accordance to literature review. It is noteworthy that despite the considerable morphometric variability, pregnant adult specimens of P. obesa occurred mainly in characin fish, especially ichthyophagous, top carnivores.
{"title":"PROSTHENHYSTERA OBESA (DIESING, 1850) (DIGENEA, CALLODISTOMIDAE) DEL RÍO SÃO FRANCISCO, BRASIL: NUEVOS REGISTROS DE HOSPEDEROS Y SUS PARÁMETROS ECOLÓGICOS","authors":"Amanda Nascimento Martins, Cláudia da Silveira de São Sabas, Marilia de Carvalho Brasil-Sato","doi":"10.24039/RNH201261994","DOIUrl":"https://doi.org/10.24039/RNH201261994","url":null,"abstract":"Prosthenhystera obesa (Diesing, 1850) (Digenea, Callodistomidae), parasitizes the gall bladder of freshwater fish and was first found in Leporinus reinhardti Lutken, 1875 (Characiformes, Anostomidae) and Pimelodus pohli Ribeiro & Lucena, 2006 (Siluriformes, Pimelodidae). These omnivorous fish were collected in the upper Sao Francisco River, Minas Gerais, Brazil. prevalence (%) and mean abundance of P. obesa were 1.58% and 0.02 ± 0.127 in L. reinhardti, and 3.85% and 0.04 ± 0.196 in P. pohli, respectively. Prosthenhystera obesa has already been reported in a carnivorous characin Salminus franciscanus Lima & Britski, 2007 and in an omnivorous pimelodid Pimelodus maculatus Lacepede, 1803 both in the Sao Francisco River, but their ecological parameters are here presented for the first time together with the data for L. reinhardti and P. pohli, two new hosts in the Neotropical Region. The ecological descriptors of P. obesa were similar, i. e., they were low in all fish of the Sao Francisco River and also in most fish from different hydrographic basins in accordance to literature review. It is noteworthy that despite the considerable morphometric variability, pregnant adult specimens of P. obesa occurred mainly in characin fish, especially ichthyophagous, top carnivores.","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132919400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
V. D. Abdallah, Rodney Kozlowiski de Azevedo, E. D. Carvalho, Reinaldo José da Silva
A study on the nematode parasites of nine species of freshwater fishes from Peixe River Sao Paulo, State, Brazil. was conducted. Fish were ollected between February 2010 and March 2011 and the following species were found: Procamallanus (Spirocamallanus)inopinatus and Contracaecum sp. (larvae) in Astyanax altiparanae; Contracaecum sp. (larvae), Dioctophyma renale (larvae), Philometroides caudata, P. (Spirocamallanus) inopinatus, P. (Spirocamallanus) neocaballeroi (larvae) and P. (Spirocamallanus) saofranciscensis in Acestrorhynchus lacustris; Contracaecum sp. (larvae), Guyanema sp., Hysterothylacium sp. (larvae) and Icthyouris sp. in Cyphocharax modestus; Contracaecum sp. (larvae), Cosmoxynemoides aguirrei and Pharyngodonidae gen. sp. in C. nagelii; Dioctophyma renale (larvae), Hysterothylacium sp. (larvae) and Rhabdochona sp. in Gymnotus sylvius; Capillariidae gen. sp. in Hoplosternum littorale; Cosmoxynema vianai, Guyanema sp., Ichthyouris sp. and Travnema travnema in Steindachnerina insculpta; Contracaecum sp. (larvae), Procamallanus (Spirocamallanus) rebecae (larvae) in Triportheus angulatus and Rhabdochona acuminata in Triportheus nematurus. This is first study of nematode parasites from the Peixe River, therefore all the species found are new geographical records and 19 are new host records.
{"title":"NUEVO HOSPEDADORES Y REGISTROS DE DESTRIBUCIÓN PARA NEMATODOS PARÁSITOS DE PECES DE ÁGUA DULCE DEL ESTADO DE SÃO PAULO, BRASIL","authors":"V. D. Abdallah, Rodney Kozlowiski de Azevedo, E. D. Carvalho, Reinaldo José da Silva","doi":"10.24039/RNH201261995","DOIUrl":"https://doi.org/10.24039/RNH201261995","url":null,"abstract":"A study on the nematode parasites of nine species of freshwater fishes from Peixe River Sao Paulo, State, Brazil. was conducted. Fish were ollected between February 2010 and March 2011 and the following species were found: Procamallanus (Spirocamallanus)inopinatus and Contracaecum sp. (larvae) in Astyanax altiparanae; Contracaecum sp. (larvae), Dioctophyma renale (larvae), Philometroides caudata, P. (Spirocamallanus) inopinatus, P. (Spirocamallanus) neocaballeroi (larvae) and P. (Spirocamallanus) saofranciscensis in Acestrorhynchus lacustris; Contracaecum sp. (larvae), Guyanema sp., Hysterothylacium sp. (larvae) and Icthyouris sp. in Cyphocharax modestus; Contracaecum sp. (larvae), Cosmoxynemoides aguirrei and Pharyngodonidae gen. sp. in C. nagelii; Dioctophyma renale (larvae), Hysterothylacium sp. (larvae) and Rhabdochona sp. in Gymnotus sylvius; Capillariidae gen. sp. in Hoplosternum littorale; Cosmoxynema vianai, Guyanema sp., Ichthyouris sp. and Travnema travnema in Steindachnerina insculpta; Contracaecum sp. (larvae), Procamallanus (Spirocamallanus) rebecae (larvae) in Triportheus angulatus and Rhabdochona acuminata in Triportheus nematurus. This is first study of nematode parasites from the Peixe River, therefore all the species found are new geographical records and 19 are new host records.","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117150997","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Strongyloides cruzi Rodrigues, 1968 was found in Ophiodes striatus (Spix, 1825) from Itabirito, state of Minas Gerais, Brazil. The morphology of the nematodes obtained was briefly described and compared with previous reports of Strongyloides spp. from lizards. Taxonomic comments about these parasites are presented and a species of Strongyloides, a genus whose members have rarely been reported in lizards, is for the first time observed in an anguid reptile.
{"title":"STRONGYLOIDES CRUZI (RHABDITIDA: STRONGYLOIDIDAE) EN OPHIODES STRIATUS (SQUAMATA: ANGUIDAE) EN EL BRASIL: NUEVOS REGISTROS DE HUÉSPED Y LOCALIDAD CON COMENTARIOS TAXONÓMICOS SOBRE STRONGYLOIDES DE LOS LAGARTOS","authors":"V. Mati, H. A. Pinto, A. L. Melo","doi":"10.24039/RNH201372989","DOIUrl":"https://doi.org/10.24039/RNH201372989","url":null,"abstract":"Strongyloides cruzi Rodrigues, 1968 was found in Ophiodes striatus (Spix, 1825) from Itabirito, state of Minas Gerais, Brazil. The morphology of the nematodes obtained was briefly described and compared with previous reports of Strongyloides spp. from lizards. Taxonomic comments about these parasites are presented and a species of Strongyloides, a genus whose members have rarely been reported in lizards, is for the first time observed in an anguid reptile.","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"81 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113960846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In order to study the host-parasite interaction of native fish Middle Parana system, Santa Fe, Argentina, the digestive tracts of 64 specimens of Hoplias malabaricus (Pisces, Erythrinidae) and of 70 specimens of Pimelodus maculatus (Pisces, Pimelodidae) were analyzed. These native species are important for the economy and recreational activities of the region. The fish were collected from two lentic environments associated with the San Javier River, Cayasta, in the province of Santa Fe, Argentina. After dissecting the digestive tracts, parasites were detected by stereoscopic microscopy, collected and preserved in alcohol at 70% for subsequent taxonomic identification and description. In the intestines of both hosts, sixty-nine specimens of Quadrigyrus machadoi (Acanthocephala, Quadrigyridae) were reported for the first time in the Middle Parana System in this province. The parasitic prevalence was determined for each case (P= 20.31 %, H. malabaricus; P= 28.6 %, P. maculatus) and an extended description of the icthyoparasite was carried out. This work broadens the geographical distribution of Q. machadoi for both hosts and contributes to the advancement of knowledge on the icthyoparasites associated with the regional icthyc fauna.
为了研究阿根廷圣塔菲中部Parana系统本地鱼类的寄主-寄生虫相互作用，对64份双鱼(Hoplias malabaricus)和70份Pimelodus maculatus(双鱼，Pimelodidae)的消化道进行了分析。这些本地物种对该地区的经济和娱乐活动至关重要。这些鱼是从阿根廷圣达菲省卡亚斯塔的圣哈维尔河相关的两个真实环境中收集的。在解剖消化道后，用立体显微镜检测寄生虫，收集并保存在70%酒精中，用于随后的分类鉴定和描述。在两种寄主的肠道中，本省中巴拉那系统中首次报道了69只马氏Quadrigyrus machadoi(棘头纲，Quadrigyridae)标本。测定每个病例的寄生虫流行率(P= 20.31%， malabaricus;P= 28.6%， P. maculatus)，并对鱼鳞虫进行了扩展描述。这一研究拓宽了麻瓜蛾的地理分布范围，有助于提高对与区域鱼栖动物相关的鱼栖寄生虫的认识。
{"title":"DESCRIPCIÓN DE QUADRIGYRUS MACHADOI (FABIO, 1983) (ACANTHOCEPHALA, QUADRIGYRIDAE) EN PECES NATIVOS DE HUMEDALES ASOCIADOS AL RIO SAN JAVIER, SANTA FE, ARGENTINA","authors":"S. Chemes, Romina G. Brusa","doi":"10.24039/RNH201372976","DOIUrl":"https://doi.org/10.24039/RNH201372976","url":null,"abstract":"In order to study the host-parasite interaction of native fish Middle Parana system, Santa Fe, Argentina, the digestive tracts of 64 specimens of Hoplias malabaricus (Pisces, Erythrinidae) and of 70 specimens of Pimelodus maculatus (Pisces, Pimelodidae) were analyzed. These native species are important for the economy and recreational activities of the region. The fish were collected from two lentic environments associated with the San Javier River, Cayasta, in the province of Santa Fe, Argentina. After dissecting the digestive tracts, parasites were detected by stereoscopic microscopy, collected and preserved in alcohol at 70% for subsequent taxonomic identification and description. In the intestines of both hosts, sixty-nine specimens of Quadrigyrus machadoi (Acanthocephala, Quadrigyridae) were reported for the first time in the Middle Parana System in this province. The parasitic prevalence was determined for each case (P= 20.31 %, H. malabaricus; P= 28.6 %, P. maculatus) and an extended description of the icthyoparasite was carried out. This work broadens the geographical distribution of Q. machadoi for both hosts and contributes to the advancement of knowledge on the icthyoparasites associated with the regional icthyc fauna.","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121856261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Trachemys dorbigni, the Brazilian slider turtle, is native to Uruguay, Argentina and Brazil. In Brazil the species is abundant in the southern region. This research investigated the helminth fauna of this species. We examined sixty chelonians from aquatic environments of urban and rural areas in two municipalities in the State of Rio Grande do Sul, Brazil. During the research we found Telorchis achavali and Telorchis corti (Digenea). This is the first record of T. achavali in Brazil.
{"title":"TELORCHIS SPP. (DIGENEA: TELORCHIIDAE) EN TRACHEMYS DORBIGNI (DUMÉRIL & BIBRON, 1835) (TESTUDINES: EMYDIDAE) EN EL SUR DE BRASIL","authors":"C. S. Mascarenhas, Gertrud Müller","doi":"10.24039/RNH201372978","DOIUrl":"https://doi.org/10.24039/RNH201372978","url":null,"abstract":"Trachemys dorbigni, the Brazilian slider turtle, is native to Uruguay, Argentina and Brazil. In Brazil the species is abundant in the southern region. This research investigated the helminth fauna of this species. We examined sixty chelonians from aquatic environments of urban and rural areas in two municipalities in the State of Rio Grande do Sul, Brazil. During the research we found Telorchis achavali and Telorchis corti (Digenea). This is the first record of T. achavali in Brazil.","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125550158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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