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Vianna RT, Pelegrini LS, Vieira DHMD, de Azevedo RK, Abdallah VD. Oncoceratium amphidactylum n. gen. n. sp. (Monogenoidea: Gyrodactylidae) from Hoplosternum littorale (Hancock) (Siluriformes, Callichthyidae) from southeastern Brazil. Syst Parasitol 2023; 100:455-471. [PMID: 37249817 DOI: 10.1007/s11230-023-10097-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 05/18/2023] [Indexed: 05/31/2023]
Abstract
Oncoceratium n. gen. is proposed to accommodate Oncoceratium amphidactylum n. gen. n. sp. (Monogenoidea, Gyrodactylidae). Although the proposed genus is monotypic, the differences presented in the diagnosis clearly establish it as distinct from species from other genera, such as Gyrodactylus von Nordmann, 1832 and especially those that occur exclusively in the Neotropical region. The new genus is diagnosed by the presence of a bulbous male copulatory organ, with one row of spinelets of similar sizes and shapes, while the only spine usually found in the gyrodactylids is absent or not differentiated; a haptor with anchors presenting points folded outwards, and superficial and deep roots continuous and indistinguishable; the absence of a deep bar; and hooks in two bilateral clusters of eight hooks. Oncoceratium amphidactylum n. gen. n. sp. is described from the tamboatá fish, Hoplosternum littorale (Hancock) (Callichthyidae), and is characterized by the presence of a pair of horn-shaped anchors with the point turned outwards, a superficial bar shield and absent deep bar, hooks disposed in bilateral lobes, and a MCO with no spine or with a row with large spinelets visible in place of the spine. In addition to the morphological features, distance analysis and Bayesian inference, based on 5.8s and partial ITS2, support placing the new species in a new genus, and not including it in a cluster of species of Gyrodactylus and near to Gyrodactyloides bychowskii Albova, 1948, Ieredactylus rivuli Schelkle et al., 2011 and Laminiscus gussevi (Bychowsky & Polyansky, 1953) Pálsson & Beverely-Burton, 1983.
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Affiliation(s)
- Rogério Tubino Vianna
- Laboratório de Biologia de Parasitos de Organismos Aquáticos, Instituto de Ciências Biológicas, Universidade Federal do Rio Grande (FURG), Av. Itália, km 8, Rio Grande, Rio Grande do Sul, Brazil
| | - Larissa Sbeghen Pelegrini
- Instituto de Biociências de Botucatu, Universidade Estadual Paulista (UNESP), Rua Prof. Dr. Antônio Celso Wagner Zanin, Distrito de Rubião Júnior, Botucatu, São Paulo, Brazil
| | - Diego Henrique Mirandola Dias Vieira
- Instituto de Biociências de Botucatu, Universidade Estadual Paulista (UNESP), Rua Prof. Dr. Antônio Celso Wagner Zanin, Distrito de Rubião Júnior, Botucatu, São Paulo, Brazil
| | - Rodney Kozlowiski de Azevedo
- Programa de Pós-Graduação em Análise de Sistemas Ambientais, Centro Universitário CESMAC, Rua Cônego Machado, 918, Farol, Maceió, Alagoas, Brazil
| | - Vanessa Doro Abdallah
- Setor de Parasitologia e Patologia, Universidade Federal de Alagoas, Av. Lourival Melo Mota - Tabuleiro do Martins, Maceió, Alagoas, Brazil.
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Leite LAR, Januário FF, Pelegrini LS, Antoniassi B, Azevedo RK, Abdallah VD. Seasonal patterns of infestation by monogenean parasites of fish and their relationship with water parameters in two rivers with different disturbance gradients in southeastern Brazil. BRAZ J BIOL 2023; 83:e255758. [PMID: 37194823 DOI: 10.1590/1519-6984.255758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 11/24/2021] [Indexed: 05/18/2023] Open
Abstract
Here, we evaluate the relationships between the infestation rates of five monogenean parasites species with the dry and wet seasons, with the organic and inorganic parameters of the water of two rivers: the Jacaré-Pepira and Jacaré-Guaçú, and with the condition factors of its fish hosts: Serrasalmus maculatus and Astronotus crassipinnis, in the state of São Paulo, southeastern Brazil. Fish were collected between January and December 2017. Anacanthorus serrasalmi, Amphithecium speirocamarotum and Gussevia asota had higher abundance rates (Student's t test, p ≤ 0.05) in the wet season. Gussevia asota had its abundance negatively correlated to nitrate in the Jacaré-Pepira River and with total nitrogen and potassium in the Jacaré-Guaçú River. Regarding the fish hosts condition factors, was observed a positive correlation with the abundances of G. asota in the Jacaré-Guaçú River, and with A. serrasalmi in the Jacaré-Pepira River. In general, wet season favored an increasing in the infestation rates of the monogeneans parasites in their host species, mainly in the river considered as the most polluted, the Jacaré-Guaçú River. Of the five parasites species analyzed in this study, only Gussevia astronoti and Rhinoxenus piranhus had no interaction with seasonality, river water variables, or fish host condition factors. On the other hand, G. asota had interactions both with water parameters (nitrate and total nitrogen) and with the hosts condition factors, which reflected in the abundance and intensity rates, showing itself as a species sensitive to changes in the environment and, therefore, that can be considered as a bioindicator organism.
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Affiliation(s)
- L A R Leite
- Universidade Estadual Paulista - UNESP, Instituto de Biociências, Botucatu, SP, Brasil
| | - F F Januário
- Centro Universitário do Sagrado Coração - UNISAGRADO, Pró-reitoria de Pesquisa e Pós-graduação, Bauru, SP, Brasil
| | - L S Pelegrini
- Universidade Federal do Amazonas - UFAM, Laboratório de Ictiologia e Ordenamento Pesqueiro do Vale do Rio Madeira, Humaitá, AM, Brasil
| | - B Antoniassi
- Centro Universitário do Sagrado Coração - UNISAGRADO, Pró-reitoria de Pesquisa e Pós-graduação, Bauru, SP, Brasil
| | - R K Azevedo
- Centro Universitário CESMAC, Programa de Pós-graduação em Análise de Sistemas Ambientais, Maceió, AL, Brasil
| | - V D Abdallah
- Centro Universitário CESMAC, Programa de Pós-graduação em Análise de Sistemas Ambientais, Maceió, AL, Brasil
- Universidade Federal de Alagoas - UFAL, Setor de Parasitologia e Patologia, Maceió, AL, Brasil
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Vianna RT, Pelegrini LS, Vieira DHMD, Azevedo RKD, Abdallah VD. A new species of Phanerothecium (Monogenea, Oogyrodactylidae), in Hypostomus regani (Loricariidae) from southeast Brazil. Biota Neotrop 2022. [DOI: 10.1590/1676-0611-bn-2021-1259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract: A new species of Phanerothecium Kritsky & Thatcher, 1977 (Oogyrodactylidae Harris, 1983) is described from locariid fish from southeast Brazil. Phanerothecium macrosomum n. sp. (Oogyrodactylidae) is described from the body surface of Hypostomus regani (Ihering, 1905) (Loricariidae). It is characterized by an armed male copulatory organ containing spines of different size from proximal to distal extremity, short peduncle and robust haptor.
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Leite LAR, Pelegrini LS, Azevedo RKD, Abdallah VD. A new species of Tereancistrum (Monogenea: Dactylogyridae), parasite of Prochilodus lineatus (Characiformes: Prochilodontidae) from southeast Brazil. Rev Bras Parasitol Vet 2020; 29:e017019. [PMID: 32428185 DOI: 10.1590/s1984-29612020024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2019] [Accepted: 03/16/2020] [Indexed: 06/11/2023]
Abstract
A new species of Tereancistrum Kritsky, Thatcher & Kayton, 1980 collected of Prochilodus lineatus gills from the Batalha River, Tietê-Batalha basin, São Paulo State, Brazil is described. The new species can be distinguished from its congeners mainly by the configuration of the ventral bar, which has an anvil-shaped characteristic with corrugated anterior projection. Tereancistrum takemotoi n. sp. is morphologically similar to T. toksonum Lizama, Takemoto & Pavanelli, 2004 in terms of their dorsal bars (Y-shaped), their dorsal anchors with divergent roots (superficial and deep) wherein their deep root rather elongated, and by the fact that they both have the male copulatory organ counterclockwise. However, only T. takemotoi n. sp. presents the male copulatory organ with 2¼ rings and shows undulations in the anterior margin of the dorsal bar. These undulations are absent in T. toksonum (which only has 1¼ rings). This is the fourth Tereancistrum species described for P. lineatus and the first described for the region from the Tietê-Batalha basin.
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Affiliation(s)
| | | | | | - Vanessa Doro Abdallah
- Programa de Pós-graduação em Análise de Sistemas Ambientais, Centro Universitário CESMAC, Maceió, AL, Brasil
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Pelegrini LS, Gião T, Vieira DHMD, Müller MI, da Silva RJ, de León GPP, de Azevedo RK, Abdallah VD. Molecular and morphological characterization of the metacercariae of two species of diplostomid trematodes (Platyhelminthes, Digenea) in freshwater fishes of the Batalha River, Brazil. Parasitol Res 2019; 118:2169-2182. [PMID: 31183598 DOI: 10.1007/s00436-019-06362-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 05/22/2019] [Indexed: 11/26/2022]
Abstract
The Diplostomidae include a large group of flatworms with complex life cycles and are frequently found parasitizing the eyes and central nervous system of freshwater fishes. The morphological identification of the metacercariae at species level is not always possible. Thus, molecular tools have become essential to assist in the parasite species determination. This study was aimed at describing two diplostomid metacercariae found in freshwater fish in São Paulo, Brazil, based on morphological characters and in the genetic characterization of COI sequences. Our results showed that the two recognized taxa (Tylodelphys sp. and Diplostomidae gen. sp.) appear to be different from the species already described in South America. Tylodelphys sp. differs morphologically from Tylodelphys xenopi, T. mashonense, T. jenynsiae, and T. scheuringi. The metacercariae of T. clavata and T. conifera are smaller than Tylodelphys sp., while T. podicipina is larger than the metacercariae described here. The phylogenetic analysis of COI sequences yielded Tylodelphys sp. as the sister species of Tylodelphys sp. 4, a species reported from the brain of the eleotrid Gobiomorus maculatus in Oaxaca, Mexico. The metacercariae identified as Diplostomidae gen. sp. are morphologically different from the known diplostomid metacercariae and did not match with other diplostomid sequences available. Diplostomidae gen. sp. is recovered as the sister species of Diplostomum ardeae. Although the morphological evidence and the COI sequences differentiate the metacercariae found, the absence of adult specimens of both species precludes the specific designation. This is one of the first papers that use an integrative taxonomy approach to describe the species diversity of diplostomid trematodes in Brazil.
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Affiliation(s)
- Larissa Sbeghen Pelegrini
- Instituto de Biociências de Botucatu, Universidade Estadual Paulista (UNESP), Rua Prof. Dr. Antônio Celso Wagner Zanin, Distrito de Rubião Júnior, Botucatu, São Paulo, 18618-970, Brazil
| | - Thayana Gião
- Pró-reitoria de Pesquisa e Pós-graduação, Laboratório de Ictioparasitologia, Rua Irmã Arminda, Universidade do Sagrado Coração (USC), 10-50, Jardim Brasil, Bauru, São Paulo, 17011-160, Brazil
| | - Diego Henrique Mirandola Dias Vieira
- Instituto de Biociências de Botucatu, Universidade Estadual Paulista (UNESP), Rua Prof. Dr. Antônio Celso Wagner Zanin, Distrito de Rubião Júnior, Botucatu, São Paulo, 18618-970, Brazil
| | - Maria Isabel Müller
- Instituto de Biociências de Botucatu, Universidade Estadual Paulista (UNESP), Rua Prof. Dr. Antônio Celso Wagner Zanin, Distrito de Rubião Júnior, Botucatu, São Paulo, 18618-970, Brazil
- Departamento de Ciências Biológicas, Universidade Federal de São Paulo (UNIFESP), Diadema, São Paulo, Brazil
| | - Reinaldo José da Silva
- Instituto de Biociências de Botucatu, Universidade Estadual Paulista (UNESP), Rua Prof. Dr. Antônio Celso Wagner Zanin, Distrito de Rubião Júnior, Botucatu, São Paulo, 18618-970, Brazil
| | - Gerardo Pérez-Ponce de León
- Instituto de Biologia, Universidad Nacional Autónoma de México (UNAM), Av. Universidad 3000, Cd. Universitaria, Coyoacán, 04510, Mexico City, Mexico
| | - Rodney Kozlowiski de Azevedo
- Programa de Pós-Graduação em Análise de Sistemas Ambientais, Centro Universitário CESMAC, Maceió, Alagoas, Brazil
| | - Vanessa Doro Abdallah
- Programa de Pós-Graduação em Análise de Sistemas Ambientais, Centro Universitário CESMAC, Maceió, Alagoas, Brazil.
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Leite LAR, Pelegrini LS, Agostinho BN, Azevedo RKD, Abdallah VD. Biodiversity of the metazoan parasites of Prochilodus lineatus (Valenciennes, 1837) (Characiformes: Prochilodontidae) in anthropized environments from the Batalha River, São Paulo State, Brazil. Biota Neotrop 2018. [DOI: 10.1590/1676-0611-bn-2017-0422] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract: Biodiversity of fish parasites is a field of significant growth worldwide, whether due to the advancement of fish farms or the important role of these organisms as indicators of environment quality and ecosystem health, making them useful tools in the conservation and maintenance of the biodiversity as a whole. The objectives of this study were to evaluate the structure and composition of the parasitic fauna of Prochilodus lineatus collected from two structurally distinct stretches of the Batalha River. Fifty specimens of P. lineatus were collected between June 2015 and June 2016. Of these 50 hosts, 875 parasite specimens were collected, divided into 30 species, belonging to seven groups: Myxozoa, Monogenea, Digenea, Acanthocephala, Nematoda, Copepoda and Hirudinea. In addition to new records of known parasites of P. lineatus for this locality, 13 species were newly recorded parasitizing this fish, including a new monogenean species (Tereancistrum sp. n.), with Monogenea being the most representative class in the study. The findings of this study expands the known geographic distribution of these parasite species and helps to increase the knowledge of the biodiversity of these organisms in different hosts and environments. In general, the structure and composition of the P. lineatus parasitic fauna did not seem to be influenced by the structural characteristics of the two stretches studied, due to the migratory habits of the host.
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Pelegrini LS, Januário FF, Azevedo RKD, Abdallah VD. Biodiversity and ecology of the parasitic infracommunities of Loricaria prolixa (Siluriformes: Loricariidae) from the Tietê-Batalha Basin, SP, Brazil. ACTA ACUST UNITED AC 2018. [DOI: 10.4025/actascibiolsci.v40i1.36294] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Pedro NHO, Pelegrini LS, Azevedo RK, Abdallah VD. First record of Rhipidocotyle santanaensis (Digenea) parasitizing Acestrorhynchus lacustris from Batalha River, Brazil. BRAZ J BIOL 2016; 76:878-883. [PMID: 27143062 DOI: 10.1590/1519-6984.02515] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 07/17/2015] [Indexed: 11/21/2022] Open
Abstract
This paper describes the occurrence of digenetic Rhipidocotyle santanaensis Lunaschi, 2004 in Brazil. This parasite was found in the liver, heart, gonads, intestine, pyloric caeca, stomach, swim bladder and cavity of Acestrorhynchus lacustris (Lütken, 1875) from the Batalha River, São Paulo State, with higher incidence in gonads and digestive tract. The parasite specimens found in this study showed morphological characteristics very similar to specimens from Argentina, with differences only in relation to the ejaculatory duct and seminal vesicle. However, Brazilian specimens presented great morphometrical differences between specimens described in Argentina, with much higher measures. This is the first record of this metazoan parasite species in Brazil and in this host fish.
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Affiliation(s)
- N H O Pedro
- Programa de Pós-graduação em Ciências Biológicas (Zoologia), Departamento de Parasitologia, Instituto de Biociências de Botucatu, Universidade Estadual Paulista "Júlio de Mesquita Filho" - UNESP, Distrito de Rubião Júnior, s/n, CEP 18618-970, Botucatu, SP, Brazil
| | - L S Pelegrini
- Programa de Pós-graduação em Ciências Biológicas (Zoologia), Departamento de Parasitologia, Instituto de Biociências de Botucatu, Universidade Estadual Paulista "Júlio de Mesquita Filho" - UNESP, Distrito de Rubião Júnior, s/n, CEP 18618-970, Botucatu, SP, Brazil
| | - R K Azevedo
- Laboratório de Ictioparasitologia, Central de Laboratórios de Ciência e Tecnologia Ambiental, Universidade do Sagrado Coração - USC, Rua Irmã Arminda, 10-50, Jardim Brasil, CEP 17011-160, Bauru, SP, Brazil
| | - V D Abdallah
- Laboratório de Ictioparasitologia, Central de Laboratórios de Ciência e Tecnologia Ambiental, Universidade do Sagrado Coração - USC, Rua Irmã Arminda, 10-50, Jardim Brasil, CEP 17011-160, Bauru, SP, Brazil
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de Paula HMG, Távora RS, de Almeida MV, Pelegrini LS, da Silva GV, Zaganini RL, Lucindo A. Estudos Preliminares da Presença de Sagüis no Município de Bauru, São Paulo, Brasil. ACTA ACUST UNITED AC 2005. [DOI: 10.1896/1413-4705.13.3.6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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