This study collected records of 135 taxa of parasitic helminths (Nematoda, Trematoda, Cestoda, Monogenoidea and Acanthocephala) and ectosimbionts (Temnocephalida) associated with continental Testudines from South America. Eighty-nine helminths were identified at the species level while others were identified up to genus or family levels. The greatest diversity of helminths associated with Testudines was reported in Brazil. Chelidae was the family with the largest number of helminth species. Regarding the conservation status, 17 Testudines species with helminth records are cited in the IUCN Red List of Threatened Species. Knowledge of helminth biodiversity and of relations between these organisms and Testudines can provide important data on host biology. Therefore, information generated by studies of helminths can contribute to research which aims at the conservation of organims and their habitats.
{"title":"LISTA DE HELMINTOS ASOCIADOS A LOS TESTUDINES CONTINENTALES DE AMÉRICA DEL SUR","authors":"C. S. Mascarenhas, Gertrud Müller","doi":"10.24039/RNH20211511047","DOIUrl":"https://doi.org/10.24039/RNH20211511047","url":null,"abstract":"This study collected records of 135 taxa of parasitic helminths (Nematoda, Trematoda, Cestoda, Monogenoidea and Acanthocephala) and ectosimbionts (Temnocephalida) associated with continental Testudines from South America. Eighty-nine helminths were identified at the species level while others were identified up to genus or family levels. The greatest diversity of helminths associated with Testudines was reported in Brazil. Chelidae was the family with the largest number of helminth species. Regarding the conservation status, 17 Testudines species with helminth records are cited in the IUCN Red List of Threatened Species. Knowledge of helminth biodiversity and of relations between these organisms and Testudines can provide important data on host biology. Therefore, information generated by studies of helminths can contribute to research which aims at the conservation of organims and their habitats.","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129869619","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}
Germán Augusto Murrieta-Morey, Linda Lizeth Flores-Villacorta, Raúl Yalán-Villafana, Carlos Chuquipiondo-Guardia
Platynematichthys notatus (Jardine, 1841), popularly known as "lince cat" stands out for being a very popular species in the ornamental fish market, being exported to different parts of the world. Despite its economic importance, the existing information on helminths that parasitize this species is very scarce. In this sense, the present study identified monogenoids that parasitize the gills of this fish. The gills of ten specimens of P. notatus from the commercial aquarium AQUATRADE SAC, placed in Iquitos-Peru were analyzed. After taxonomic identification, Boegeriella conica Mendoza-Palmero, Mendoza-Franco, Acosta & Scholz, 2019 was reported as the species that parasitizes the gills of P. notatus. The main morphological characteristics of the species are: a coiled tubular male copulatory organ forming approximately 2 1/2 rings, an accessory piece of a sigmoid shape, bars with anteriorly directed lateral projections. This species is mentioned for the second time parasitizing P. notatus. In addition, the results of this study indicate a high specificity between B. conica and its host P. notatus.
{"title":"BOEGERIELLA CONICA MENDOZA-PALMERO, MENDOZA-FRANCO, ACOSTA & SCHOLZ, 2019 (MONOGENOIDEA: DACTYLOGYRIDAE) PARÁSITO DE LAS BRANQUIAS DEL “LINCE CAT” PLATYNEMATICHTHYS NOTATUS (JARDINE, 1841) (SILURIFORMES: PIMELODIDAE) COLECTADOS EN IQUITOS, PERÚ","authors":"Germán Augusto Murrieta-Morey, Linda Lizeth Flores-Villacorta, Raúl Yalán-Villafana, Carlos Chuquipiondo-Guardia","doi":"10.24039/RNH20211511045","DOIUrl":"https://doi.org/10.24039/RNH20211511045","url":null,"abstract":"Platynematichthys notatus (Jardine, 1841), popularly known as \"lince cat\" stands out for being a very popular species in the ornamental fish market, being exported to different parts of the world. Despite its economic importance, the existing information on helminths that parasitize this species is very scarce. In this sense, the present study identified monogenoids that parasitize the gills of this fish. The gills of ten specimens of P. notatus from the commercial aquarium AQUATRADE SAC, placed in Iquitos-Peru were analyzed. After taxonomic identification, Boegeriella conica Mendoza-Palmero, Mendoza-Franco, Acosta & Scholz, 2019 was reported as the species that parasitizes the gills of P. notatus. The main morphological characteristics of the species are: a coiled tubular male copulatory organ forming approximately 2 1/2 rings, an accessory piece of a sigmoid shape, bars with anteriorly directed lateral projections. This species is mentioned for the second time parasitizing P. notatus. In addition, the results of this study indicate a high specificity between B. conica and its host P. notatus.","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131280640","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}
David Minaya, José Iannacone, L. Alvariño, Carla Cepeda, Maurício Laterça Martins
Nile Tilapia Oreochromis niloticus (Linnaeus, 1758) is an endemic freshwater fish native to Africa. Oreochromis is the most critical genus in aquaculture because it has the highest growth rates, easy reproduction, and management. The present work's objective was to evaluate some ecological aspects of the invading metacercaria Centrocestus formosanus (Nishigori, 1924) (Trematoda: Heterophyidae) in O. niloticus in the wetlands of Pantanos de Villa, Lima, Peru. Twenty specimens of O. niloticus collected in the Genesis, and Marvilla lagoons in Pantanos de Villa's wetlands were inspected parasitologically during February and October of 2012. The fish had an average weight and length of 221.3 g ± 111.4 and 19.6 cm ± 4.24 cm, respectively. The invasive ectoparasite metacercariae were cataloged and evaluated using standard parasitological protocols. During the entire sampling, a total of 130 C. formosanus trematodes was collected, with an average abundance of sixty percent of the Nile Tilapias were parasitized by C. formosanus. The relative condition factor (kn), an indicator of host fish health, was not influenced by the presence of C. formosanus. Centrocestus formosanus has been recorded in birds and mammals, including humans producing heterophils, a worldwide emerging disease in humans transmitted by raw fish consumption. Centrocestus formosanus in Peru represents a potential zoonotic impact on public health. The presence of the dynozoan ectoparasite Amyloodinium ocellatum Brown & Hovasse, 1946, can cause pathological alterations in marine fish and saline environments found in gills in a single host.
尼罗罗非鱼(Oreochromis niloticus, Linnaeus, 1758)是非洲特有的淡水鱼。Oreochromis是水产养殖中最重要的属，因为它具有最高的生长速度，易于繁殖和管理。本研究的目的是评估入侵秘鲁利马Pantanos de Villa湿地的O. niloticus中Centrocestus formosanus (Nishigori, 1924)(吸虫目:异藻科)的一些生态学方面。2012年2月和10月，在潘塔诺斯德维拉湿地的Genesis和Marvilla泻湖采集了20份niloticus标本进行了寄生虫学检查。鱼的平均体重和长度分别为221.3 g±111.4和19.6 cm±4.24 cm。采用标准寄生虫学方法对侵入性体外寄生虫囊蚴进行分类和评价。在整个采样过程中，共采集到台湾罗非鱼吸虫130只，平均60%的罗非鱼被台湾罗非鱼寄生。相对条件因子(kn)对宿主鱼的健康状况没有影响。在鸟类和哺乳动物中，包括人类中都发现了台湾中央螺杆菌，这是一种世界范围内通过食用生鱼传播的新疾病。秘鲁的福尔摩沙央牛对公共卫生有潜在的人畜共患影响。动态动物外寄生虫Amyloodinium ocellatum Brown & Hovasse, 1946，可引起海洋鱼类和盐水环境中单个宿主鳃的病理改变。
{"title":"ASPECTOS ECOLÓGICOS DEL TREMÁTODO INVASOR CENTROCESTUS FORMOSANUS (NISHIGORI, 1924) (TREMATODA: HETEROPHYIDAE) EN LA TILAPIA DEL NILO OREOCHROMIS NILOTICUS (LINNAEUS, 1758) (PERCIFORMES: CICHLIDAE), EN EL HUMEDAL LOS PANTANOS DE VILLA, LIMA, PERÚ","authors":"David Minaya, José Iannacone, L. Alvariño, Carla Cepeda, Maurício Laterça Martins","doi":"10.24039/RNH20211511044","DOIUrl":"https://doi.org/10.24039/RNH20211511044","url":null,"abstract":"Nile Tilapia Oreochromis niloticus (Linnaeus, 1758) is an endemic freshwater fish native to Africa. Oreochromis is the most critical genus in aquaculture because it has the highest growth rates, easy reproduction, and management. The present work's objective was to evaluate some ecological aspects of the invading metacercaria Centrocestus formosanus (Nishigori, 1924) (Trematoda: Heterophyidae) in O. niloticus in the wetlands of Pantanos de Villa, Lima, Peru. Twenty specimens of O. niloticus collected in the Genesis, and Marvilla lagoons in Pantanos de Villa's wetlands were inspected parasitologically during February and October of 2012. The fish had an average weight and length of 221.3 g ± 111.4 and 19.6 cm ± 4.24 cm, respectively. The invasive ectoparasite metacercariae were cataloged and evaluated using standard parasitological protocols. During the entire sampling, a total of 130 C. formosanus trematodes was collected, with an average abundance of sixty percent of the Nile Tilapias were parasitized by C. formosanus. The relative condition factor (kn), an indicator of host fish health, was not influenced by the presence of C. formosanus. Centrocestus formosanus has been recorded in birds and mammals, including humans producing heterophils, a worldwide emerging disease in humans transmitted by raw fish consumption. Centrocestus formosanus in Peru represents a potential zoonotic impact on public health. The presence of the dynozoan ectoparasite Amyloodinium ocellatum Brown & Hovasse, 1946, can cause pathological alterations in marine fish and saline environments found in gills in a single host.","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"121 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122382212","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}
Rafael Armiñana-García, Rigoberto Fimia-Duarte, Yolepsy Castillo-Fleites, Regla Teresa López-Pérez, José Alberto Fernández-Pérez, J. Iannacone
The research proposes through interviews, workshops, talks and sociocultural encounters, to link the inhabitants of the town of Caibarien located in the municipality of the same name in the province of Villa Clara, Cuba, to the knowledge of Invasive Exotic Species and their undesirable effects to the Cuban vulnerable ecosystems and to human health and in particular of the Lissachatina fulica (Bowdich, 1822) species, the Giant African Snail. For the effective development of this research, theoretical and empirical methods are used to address the multilateral study of the research object. The research represents a novel way of appropriating new knowledge about the L. fulica species by the inhabitants of Caibarien. In the interviews carried out, it was found that some inhabitants had certain knowledge about the African Giant Snail, not about the harmful effects that this animal can cause to the vulnerable Cuban ecosystems and to human health. The proposal of the workshops, talks and sociocultural meetings were valued as relevant by the different external evaluators, which allowed applying the activities in different popular councils. Through these activities, spaces for exchange and reflection were created about the importance of knowing important aspects of this Invasive Exotic Species. This link of cooperation and awareness, allowed a rapprochement of the inhabitants with the researchers and the feedback of scientific knowledge with popular knowledge and it was possible to control this IAS in some areas of the city of Caibarien, with the active participation of the population.
{"title":"LISSACATHINA FULICA (BOWDICH, 1822) (MOLLUSCA: GASTROPODA: STYLOMMATOPHORA: ACHATINIDAE), AMENAZA LOS ECOSISTEMAS CUBANOS Y LA SALUD HUMANA","authors":"Rafael Armiñana-García, Rigoberto Fimia-Duarte, Yolepsy Castillo-Fleites, Regla Teresa López-Pérez, José Alberto Fernández-Pérez, J. Iannacone","doi":"10.24039/RNH20211511043","DOIUrl":"https://doi.org/10.24039/RNH20211511043","url":null,"abstract":"The research proposes through interviews, workshops, talks and sociocultural encounters, to link the inhabitants of the town of Caibarien located in the municipality of the same name in the province of Villa Clara, Cuba, to the knowledge of Invasive Exotic Species and their undesirable effects to the Cuban vulnerable ecosystems and to human health and in particular of the Lissachatina fulica (Bowdich, 1822) species, the Giant African Snail. For the effective development of this research, theoretical and empirical methods are used to address the multilateral study of the research object. The research represents a novel way of appropriating new knowledge about the L. fulica species by the inhabitants of Caibarien. In the interviews carried out, it was found that some inhabitants had certain knowledge about the African Giant Snail, not about the harmful effects that this animal can cause to the vulnerable Cuban ecosystems and to human health. The proposal of the workshops, talks and sociocultural meetings were valued as relevant by the different external evaluators, which allowed applying the activities in different popular councils. Through these activities, spaces for exchange and reflection were created about the importance of knowing important aspects of this Invasive Exotic Species. This link of cooperation and awareness, allowed a rapprochement of the inhabitants with the researchers and the feedback of scientific knowledge with popular knowledge and it was possible to control this IAS in some areas of the city of Caibarien, with the active participation of the population.","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126697594","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}
1) El Oso hormiguero gigante u oso palmero Myrmecophaga tridactyla Linnaeus, 1758 (Mammalia: Xenarthra) es una especie corpulenta que mide entre 1 y 1,9 m, con un peso que varia entre 22 y 39 kg. Posee una cola voluminosa que mide entre 60 y 90 cm de longitud y que debido a su pelaje muy largo y rigido, parece una hoja de palmera. Su coloracion dorsal va desde grisacea hasta parduzca con tonalidades blancas y una banda ancha de color negro desde la garganta hasta el pecho. El vientre es negro o pardo grisaceo oscuro. La cabeza y el rostro son muy alargados, con un craneo que no posee dientes. En las extremidades anteriores presenta tres enormes y poderosas garras que le permiten cavar y hurgar en la tierra en busca de alimento, principalmente de hormigas (genero Camponotus y de la subfamilia Dorylinae) y termitas. A escala internacional la especie se encuentra incluida en el Apendice II del CITES. En Venezuela se establece su veda indefinida mediante el Decreto N° 1.485 (11/09/96). Su distribucion geografica abarca numerosas areas protegidas.
{"title":"Miositis parasitaria asociada a la infestación por Trichinella en Myrmecophaga trydactila: registro de un caso en Venezuela","authors":"Israel Cañizales","doi":"10.24039/RNH2011511040","DOIUrl":"https://doi.org/10.24039/RNH2011511040","url":null,"abstract":"1) El Oso hormiguero gigante u oso palmero Myrmecophaga tridactyla Linnaeus, 1758 (Mammalia: Xenarthra) es una especie corpulenta que mide entre 1 y 1,9 m, con un peso que varia entre 22 y 39 kg. Posee una cola voluminosa que mide entre 60 y 90 cm de longitud y que debido a su pelaje muy largo y rigido, parece una hoja de palmera. Su coloracion dorsal va desde grisacea hasta parduzca con tonalidades blancas y una banda ancha de color negro desde la garganta hasta el pecho. El vientre es negro o pardo grisaceo oscuro. La cabeza y el rostro son muy alargados, con un craneo que no posee dientes. En las extremidades anteriores presenta tres enormes y poderosas garras que le permiten cavar y hurgar en la tierra en busca de alimento, principalmente de hormigas (genero Camponotus y de la subfamilia Dorylinae) y termitas. A escala internacional la especie se encuentra incluida en el Apendice II del CITES. En Venezuela se establece su veda indefinida mediante el Decreto N° 1.485 (11/09/96). Su distribucion geografica abarca numerosas areas protegidas.","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115474475","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, J. P. Cerapio, Jorge Cárdenas-Callirgos, K. Sanchez, F. Briceño, Antonio Dueñas
Labrisomus philippii (Steindachner, 1866) es un pez de fondos rocosos intermareales y submareales con distribucion en las costas de Peru y Chile. Entre mayo y septiembre del 2008, 124 especimenes de L. philippii fueron obtenidos desde el Terminal Pesquero de Chorrillos, Lima, Peru para la evaluacion cuantitativa de su fauna parasitaria. De los peces estudiados 64 fueron hembras y 60 fueron machos. Los peces mostraron una longitud promedio de 19,1 cm (10 cm a 24,5 cm). Los parasitos fueron colectados y censados empleando las tecnicas convencionales. El ensamble parasitario registro una mayor abundancia de endoparasitos (99,3%) que de ectoparasitos (0,7%). El promedio de la riqueza de especies de parasitos fue 1,1 (0 a 5). 47 hospederos no presentaron ningun parasito y 77 hospederos mostraron infeccion con al menos un solo parasito. Se encontraron ocho parasitos con la siguiente prevalencia y abundancia media (± desviacion estandar) un mixosporea no identificado (7,2%; 0,1±0,5), el copepodo Acanthochondria syciasis (Kroyer, 1863) (4%; 0,04±0,2), tres trematodos, Zoogonus rubellus (Olsson, 1868) (32,2; 18,4±128,9), Prosorhynchoides rioplatensis (Szidat, 1970) Lunaschi, 2003 (30,6%; 3,6±12,1), y Helicometra fasciata (Rudolphi, 1819) (13,7%; 4,7±19,4), el acantocefalo (larva) Corynosoma australe Johnston, 1937 (15,3%; 0,5±2,0), el nematodo Proleptussp. (2,4%; 0,02± 0,1) y un Piscicolidae gen. especie no identificada (1,6%; 0,02± 0,1). El concepto de importancia de Bursey mostro que Z. rubellus (1872), H. fasciata (483,7) y P. rioplatensis (390) presentaron los valores numericos mas altos. Cinco de los ocho parasitos mostraron una distribucion agregada. Se compararon los resultados obtenidos con la estructura comunitaria parasitaria registrada 20 anos atras en L. philippii en la misma localidad
{"title":"Comunidades de parásitos en el trambollo Labrisomus philippii (Steindachner, 1866) (Perciformes: Labrisomidae) de la zona costera de Chorrillos Lima, Perú","authors":"J. Iannacone, J. P. Cerapio, Jorge Cárdenas-Callirgos, K. Sanchez, F. Briceño, Antonio Dueñas","doi":"10.24039/RNH2011511037","DOIUrl":"https://doi.org/10.24039/RNH2011511037","url":null,"abstract":"Labrisomus philippii (Steindachner, 1866) es un pez de fondos rocosos intermareales y submareales con distribucion en las costas de Peru y Chile. Entre mayo y septiembre del 2008, 124 especimenes de L. philippii fueron obtenidos desde el Terminal Pesquero de Chorrillos, Lima, Peru para la evaluacion cuantitativa de su fauna parasitaria. De los peces estudiados 64 fueron hembras y 60 fueron machos. Los peces mostraron una longitud promedio de 19,1 cm (10 cm a 24,5 cm). Los parasitos fueron colectados y censados empleando las tecnicas convencionales. El ensamble parasitario registro una mayor abundancia de endoparasitos (99,3%) que de ectoparasitos (0,7%). El promedio de la riqueza de especies de parasitos fue 1,1 (0 a 5). 47 hospederos no presentaron ningun parasito y 77 hospederos mostraron infeccion con al menos un solo parasito. Se encontraron ocho parasitos con la siguiente prevalencia y abundancia media (± desviacion estandar) un mixosporea no identificado (7,2%; 0,1±0,5), el copepodo Acanthochondria syciasis (Kroyer, 1863) (4%; 0,04±0,2), tres trematodos, Zoogonus rubellus (Olsson, 1868) (32,2; 18,4±128,9), Prosorhynchoides rioplatensis (Szidat, 1970) Lunaschi, 2003 (30,6%; 3,6±12,1), y Helicometra fasciata (Rudolphi, 1819) (13,7%; 4,7±19,4), el acantocefalo (larva) Corynosoma australe Johnston, 1937 (15,3%; 0,5±2,0), el nematodo Proleptussp. (2,4%; 0,02± 0,1) y un Piscicolidae gen. especie no identificada (1,6%; 0,02± 0,1). El concepto de importancia de Bursey mostro que Z. rubellus (1872), H. fasciata (483,7) y P. rioplatensis (390) presentaron los valores numericos mas altos. Cinco de los ocho parasitos mostraron una distribucion agregada. Se compararon los resultados obtenidos con la estructura comunitaria parasitaria registrada 20 anos atras en L. philippii en la misma localidad","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129192497","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}
Danielle Priscilla Correia Costa, M. C. Albuquerque, M. C. Brasil-Sato
Rhabdochona (Rhabdochona) acuminata (Molin, 1860) (Rhabdochonidae) parasitizes the intestine of several species of fish and it has a broad geographical distribution. The present study is the first to report adult specimens of this helminth in Acestrorhynchus britskii Menezes, 1969 and Acestrorhynchus lacustris Lutken, 1875 (Acestrorhynchidae), collected in the Tres Marias reservoir, upper Sao Francisco River, State of Minas Gerais, Brazil. At the same locality, Rhabdochona sp. larvae were found in sympatric populations of forage fishes, Tetragonopterus chalceus Spix & Agassiz, 1829 and Triportheus guentheri (Garman, 1890) which are potential prey to the piscivorous Acestrorhynchids and they are mentioned as possible intermediate or paratenic hosts of this parasite species. The parasite indices of R. acuminata were not influenced by either sex or total length of these piscivorous hosts.
{"title":"RHABDOCHONA (RHABDOCHONA) ACUMINATA (NEMATODA) IN FISHES (CHARACIFORMES, ACESTRORHYNCHIDAE) FROM THE TRÊS MARIAS RESERVOIR, UPPER SÃO FRANCISCO RIVER, BRAZIL","authors":"Danielle Priscilla Correia Costa, M. C. Albuquerque, M. C. Brasil-Sato","doi":"10.24039/RNH2011511031","DOIUrl":"https://doi.org/10.24039/RNH2011511031","url":null,"abstract":"Rhabdochona (Rhabdochona) acuminata (Molin, 1860) (Rhabdochonidae) parasitizes the intestine of several species of fish and it has a broad geographical distribution. The present study is the first to report adult specimens of this helminth in Acestrorhynchus britskii Menezes, 1969 and Acestrorhynchus lacustris Lutken, 1875 (Acestrorhynchidae), collected in the Tres Marias reservoir, upper Sao Francisco River, State of Minas Gerais, Brazil. At the same locality, Rhabdochona sp. larvae were found in sympatric populations of forage fishes, Tetragonopterus chalceus Spix & Agassiz, 1829 and Triportheus guentheri (Garman, 1890) which are potential prey to the piscivorous Acestrorhynchids and they are mentioned as possible intermediate or paratenic hosts of this parasite species. The parasite indices of R. acuminata were not influenced by either sex or total length of these piscivorous hosts.","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"36 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126518964","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 development of eggs to obtain ciliated larvae called miracidia of Fasciola hepatica in the nature occur in aqueous biotopes or shallow banks of accumulations of water where the eggs come in fecal waste. The objective of this research was to make the hatching of miracidia exposed to light and darkness from eggs of F. hepatica from gall bladders of cattle and sheep hosts, and whether there are significant differences in the time of their evolution. The samples from 5 cattle and 10 sheep were collected from July to September 2009. Sieved and washed in cooled boiled water, placing 20 cm3 of sediment in each petri dish in triplicate and a constant temperature of 26°C and were observed daily until hatching, adding cooled boiled water to compensate the evaporation. Developing longer corresponded to the eggs incubated in darkness, being of 404 h and 439 h on eggs of origin sheep and cattle, respectively. The development period was shorter for eggs incubated in the presence of light. Provenance in sheep and cattle was 278 h and 279 h, respectively. Light and origin of the host influence hatching time of eggs of F. hepatica. EnglishEl desarrollo de huevos para la obtencion de larvas ciliadas denominadas miracidios de Fasciola hepatica en el medio natural ocurren en biotopos acuosos poco profundos o en riveras de acumulos de agua, donde llegan los huevos junto con el desecho fecal. El objetivo de la presente investigacion fue realizar la eclosion de miracidios expuestos a luz y oscuridad a partir de huevos de F. hepatica provenientes de vesiculas biliares de vacunos y ovinos hospederos, y establecer si existen diferencias significativas en el tiempo de evolucion de los mismos. Las muestras provinieron de 5 vacunos y 10 ovinos colectadas de julio a septiembre de 2009. Se tamizaron y se lavaron en agua hervida enfriada, colocando 20 cm3 del sedimento en cada placa petri por triplicado y a una temperatura constante de 26°C y se observaron diariamente hasta su eclosion, agregando agua hervida enfriada para compensar la evaporacion. El desarrollo mas prolongado correspondio a los huevos incubados en oscuridad, siendo de 404 h y 439 h en los huevos de procedencia ovina y vacuna, respectivamente. El periodo de desarrollo mas corto fue para los huevos incubados en presencia de luz. En los de procedencia ovina y vacuna fueron de 278 h y 279 h, respectivamente. La luz y el hospedero de procedencia influyen en el tiempo de eclosion de huevos de F. hepatica.
在自然界中，被称为肝片形吸虫miracidia的纤毛幼虫的卵的发育发生在含水生物群落或水的浅滩中，卵来自粪便废物。本研究的目的是观察牛、羊两种宿主胆囊中肝芽胞菌卵在光照和黑暗条件下的孵化情况，以及它们的进化时间是否存在显著差异。2009年7 - 9月采集了5头牛和10只羊的样本。在冷却的沸水中筛过洗净，在每个培养皿中放入20 cm3的沉淀物，一式三份，恒温26°C，每天观察直到孵化，加入冷却的沸水补偿蒸发。在黑暗中孵育的卵发育时间越长，原产羊和原产牛的卵发育时间分别为404 h和439 h。光照条件下孵育的卵发育周期较短。绵羊和牛的种源分别为278 h和279 h。光照和寄主来源影响肝螺旋体卵的孵化时间。【中文】肝片形吸虫的幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫幼虫。El objetivo de la现在investigacion fue realizar la羽化de miracidios expuestos luz y oscuridad从德到了德·f·獐耳细辛provenientes de vesiculas胆汁酸de vacunos y ovinos hospederos, y establecer si existen diferencias significativas en El tiempo de evolucion de对。2009年7月至9月，拉斯韦加斯省共收集了10个葡萄品种和5个葡萄品种。在26°C的低温条件下，将20 cm3的样品沉积到3个培养皿中，观察了不同温度下的沉积过程，并对不同温度下的沉积过程进行了模拟。在这两种情况下，分别有两种情况:一种是延长通信时间，一种是延长通信时间，另一种是延长通信时间，另一种是延长通信时间。El periodo de desarrollo mas corto fute para los huevos incubados en prescia de luz。分别在278年和279年进行了两次真空试验。La luz是一所医院，在肝炎病毒感染的时间内进行了程序性流感治疗。
{"title":"DESARROLLO DE HUEVOS DE FASCIOLA HEPATICA A PARTIR DE HUEVOS AISLADOS DE LA VESÍCULA BILIAR DE OVINOS Y VACUNOS, EXPUESTOS A LUZ Y OSCURIDAD","authors":"Paul Iturbe Espinoza","doi":"10.24039/RNH2011511039","DOIUrl":"https://doi.org/10.24039/RNH2011511039","url":null,"abstract":"espanolThe development of eggs to obtain ciliated larvae called miracidia of Fasciola hepatica in the nature occur in aqueous biotopes or shallow banks of accumulations of water where the eggs come in fecal waste. The objective of this research was to make the hatching of miracidia exposed to light and darkness from eggs of F. hepatica from gall bladders of cattle and sheep hosts, and whether there are significant differences in the time of their evolution. The samples from 5 cattle and 10 sheep were collected from July to September 2009. Sieved and washed in cooled boiled water, placing 20 cm3 of sediment in each petri dish in triplicate and a constant temperature of 26°C and were observed daily until hatching, adding cooled boiled water to compensate the evaporation. Developing longer corresponded to the eggs incubated in darkness, being of 404 h and 439 h on eggs of origin sheep and cattle, respectively. The development period was shorter for eggs incubated in the presence of light. Provenance in sheep and cattle was 278 h and 279 h, respectively. Light and origin of the host influence hatching time of eggs of F. hepatica. EnglishEl desarrollo de huevos para la obtencion de larvas ciliadas denominadas miracidios de Fasciola hepatica en el medio natural ocurren en biotopos acuosos poco profundos o en riveras de acumulos de agua, donde llegan los huevos junto con el desecho fecal. El objetivo de la presente investigacion fue realizar la eclosion de miracidios expuestos a luz y oscuridad a partir de huevos de F. hepatica provenientes de vesiculas biliares de vacunos y ovinos hospederos, y establecer si existen diferencias significativas en el tiempo de evolucion de los mismos. Las muestras provinieron de 5 vacunos y 10 ovinos colectadas de julio a septiembre de 2009. Se tamizaron y se lavaron en agua hervida enfriada, colocando 20 cm3 del sedimento en cada placa petri por triplicado y a una temperatura constante de 26°C y se observaron diariamente hasta su eclosion, agregando agua hervida enfriada para compensar la evaporacion. El desarrollo mas prolongado correspondio a los huevos incubados en oscuridad, siendo de 404 h y 439 h en los huevos de procedencia ovina y vacuna, respectivamente. El periodo de desarrollo mas corto fue para los huevos incubados en presencia de luz. En los de procedencia ovina y vacuna fueron de 278 h y 279 h, respectivamente. La luz y el hospedero de procedencia influyen en el tiempo de eclosion de huevos de F. hepatica.","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"121 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123700809","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}
Maria Izabel Barbosa de Medeiros do Prado, Ana Rita dos Santos-Lopes, R. Silva
The present study aims to identify the helminth fauna of Spheniscus magellanicus Foster, 1781 from themunicipality of Ilha Comprida, southern Sao Paulo State. A total of 28 individuals were analyzed,resulting in an identification of three helminth species: Contracaecum pelagicum Johnston &Mawson, 1942, Cardiocephaloides physalis Sudarikov, 1959 and Tetrabotrium lutzi Parona, 1901.Contracaecum pelagicum and C. physalis were core species, while T. lutzi was considered a satellitespecies. All individuals examined were infected with at least one species (overall prevalence = 100%).The host specimens were all juveniles and the infection may be associated with food items eaten duringmigration to the Brazilian Coast.
{"title":"FAUNA DE HELMINTOS DEL PINGÜINO DE MAGALLANES (SPHENISCUS MAGELLANICUS FOSTER, 1781) DE LA ILHA COMPRIDA, COSTA SUR, ESTADO DE SÃO PAULO, BRASIL","authors":"Maria Izabel Barbosa de Medeiros do Prado, Ana Rita dos Santos-Lopes, R. Silva","doi":"10.24039/RNH2011511035","DOIUrl":"https://doi.org/10.24039/RNH2011511035","url":null,"abstract":"The present study aims to identify the helminth fauna of Spheniscus magellanicus Foster, 1781 from themunicipality of Ilha Comprida, southern Sao Paulo State. A total of 28 individuals were analyzed,resulting in an identification of three helminth species: Contracaecum pelagicum Johnston &Mawson, 1942, Cardiocephaloides physalis Sudarikov, 1959 and Tetrabotrium lutzi Parona, 1901.Contracaecum pelagicum and C. physalis were core species, while T. lutzi was considered a satellitespecies. All individuals examined were infected with at least one species (overall prevalence = 100%).The host specimens were all juveniles and the infection may be associated with food items eaten duringmigration to the Brazilian Coast.","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"297 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124259810","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}
Sicyases sanguineus (Muller & Troschel, 1843) es una especie ictica que vive en la zona litoral del intermareal rocoso adherido a las rocas y bajo la influencia del oleaje y presenta distribucion geografica de Salaverry (Peru) a Punta Arenas (Chile). Entre el mes de agosto y septiembre del 2009, 99 especimenes de S. sanguineus fueron obtenidos en el Terminal Pesquero de Chorrillos, Lima-Peru para la evaluacion de los aspectos cuantitativos de su parasitofauna. De los peces evaluados, 47 fueron hembras y 52 fueron machos. Los peces mostraron una longitud total promedio de 24,5±4,5 cm (11 cm a 35 cm). Los parasitos fueron colectados y cuantificados usando los procedimientos convencionales. El ensamblaje parasitario registro un mayor porcentaje de endoparasitos (83,3%) que de ectoparasitos. El promedio de la riqueza de especies de parasitos fue 1,05 ± 1,4 (0 a 4). Veinte hospederos no presentaron ningun parasito (20,2%) y 79 hospederos mostraron infeccion con al menos un solo parasito (79,8%). Se encontraron seis parasitos con la siguiente localizacion, prevalencia y abundancia media: un copepodo Acanthochondria sicyases (Kroyer, 1863) (branquias y camara branquial, 63,63% y 2,33) y cinco digeneos Proctoeces lintoni Siddiqui et Cable, 1960 (intestino, 9,1% y 0,18), Proctoeces sp. (intestino, 15,15% y 0,49), Helicometrina nimia (intestino, 4,04% y 0,05), Lecithastheridae gen. sp. (intestino, 7,07% y 0,27) y Prosorhynchoides sp. (intestino, 6,06% y 10,67). El indice de importancia parasitaria mostro que Prosorhynchoides sp. presento el valor mas alto. Todos los parasitos mostraron una distribucion contagiosa. No se encontro relacion entre el sexo y la prevalencia y abundancia de los parasitos. De igual forma la longitud total no se observo relacionada con la prevalencia y abundancia media de infeccion, a excepcion de A. sicyases. Se observo diferencias en la talla media de S. sanguineus
{"title":"Aspectos cuantitativos de los parásitos del pejesapo Sicyases sanguineus (Müller & Troshel, 1843) (Perciformes: Gobiesocidae) de la zona costera de Chorrillos, Lima, Perú","authors":"J. Iannacone, L. Alvariño","doi":"10.24039/RNH2011511036","DOIUrl":"https://doi.org/10.24039/RNH2011511036","url":null,"abstract":"Sicyases sanguineus (Muller & Troschel, 1843) es una especie ictica que vive en la zona litoral del intermareal rocoso adherido a las rocas y bajo la influencia del oleaje y presenta distribucion geografica de Salaverry (Peru) a Punta Arenas (Chile). Entre el mes de agosto y septiembre del 2009, 99 especimenes de S. sanguineus fueron obtenidos en el Terminal Pesquero de Chorrillos, Lima-Peru para la evaluacion de los aspectos cuantitativos de su parasitofauna. De los peces evaluados, 47 fueron hembras y 52 fueron machos. Los peces mostraron una longitud total promedio de 24,5±4,5 cm (11 cm a 35 cm). Los parasitos fueron colectados y cuantificados usando los procedimientos convencionales. El ensamblaje parasitario registro un mayor porcentaje de endoparasitos (83,3%) que de ectoparasitos. El promedio de la riqueza de especies de parasitos fue 1,05 ± 1,4 (0 a 4). Veinte hospederos no presentaron ningun parasito (20,2%) y 79 hospederos mostraron infeccion con al menos un solo parasito (79,8%). Se encontraron seis parasitos con la siguiente localizacion, prevalencia y abundancia media: un copepodo Acanthochondria sicyases (Kroyer, 1863) (branquias y camara branquial, 63,63% y 2,33) y cinco digeneos Proctoeces lintoni Siddiqui et Cable, 1960 (intestino, 9,1% y 0,18), Proctoeces sp. (intestino, 15,15% y 0,49), Helicometrina nimia (intestino, 4,04% y 0,05), Lecithastheridae gen. sp. (intestino, 7,07% y 0,27) y Prosorhynchoides sp. (intestino, 6,06% y 10,67). El indice de importancia parasitaria mostro que Prosorhynchoides sp. presento el valor mas alto. Todos los parasitos mostraron una distribucion contagiosa. No se encontro relacion entre el sexo y la prevalencia y abundancia de los parasitos. De igual forma la longitud total no se observo relacionada con la prevalencia y abundancia media de infeccion, a excepcion de A. sicyases. Se observo diferencias en la talla media de S. sanguineus","PeriodicalId":328487,"journal":{"name":"Neotropical helminthology","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124373880","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：