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Michelan G, Cavalcanti LD, Lehun AL, Hasuike WT, Takemoto RM. Temporal change in the parasite community of an invasive fish Trachelyopterus galeatus (Siluriformes: Auchenipteridae) in a neotropical floodplain. Parasitol Res 2024; 123:270. [PMID: 38995430 DOI: 10.1007/s00436-024-08285-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 06/29/2024] [Indexed: 07/13/2024]
Abstract
The construction of dams and hydroelectric plants affects biodiversity in aquatic environments and can facilitate the invasion of species. Few studies assess the long-term response of parasite fauna under these events. The aim of this study was to investigate possible changes in the endoparasite composition of the invasive catfish Trachelyopterus galeatus (Linnaeus, 1766) in the floodplain of the upper Paraná River over a 27-year study period. A total of 79 fish were collected in period 1 (1993) and 31 in period 2 (2019/2020) at the same sampling points, and the endoparasites were located in the gastrointestinal system using a stereomicroscope. It was found that the development of the fish and the composition of their endoparasitic fauna changed over time. In the second period, the fish presented smaller values for mass (g) and standard length (cm) when compared to period 1. It was found that three species of endoparasites were found per period, but although the richness was the same, the composition differed, and only one digenean (Microrchis oligovitellum Lunaschi, 1987 (Trematoda: Paramphistomidae)) was shared. The Porto Primavera Dam was built upstream of the site between the sampling periods (1999) and caused a number of environmental changes, possibly being the main factor responsible for changes in components of the parasite community. Anthropic modification to an environment can cause loss of diversity and loss of ecological interactions. Through our results, we emphasize the importance of including parasite fauna in studies that assess environmental impacts.
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Affiliation(s)
- Gabriela Michelan
- Programa de Pós-Graduação em Ecologia de Ambientes Aquáticos Continentais - PEA, Universidade Estadual de Maringá - UEM, Av. Colombo, 5790, Maringá, PR, C.P 87020-900, Brazil.
- Núcleo de Pesquisa em Limnologia, Ictiologia e Aquicultura - Nupélia, Universidade Estadual de Maringá - UEM, Av. Colombo, 5790, Maringá, PR, C.P 87020-900, Brazil.
| | - Lidiany Doreto Cavalcanti
- Programa de Pós-Graduação em Ecologia de Ambientes Aquáticos Continentais - PEA, Universidade Estadual de Maringá - UEM, Av. Colombo, 5790, Maringá, PR, C.P 87020-900, Brazil
- Núcleo de Pesquisa em Limnologia, Ictiologia e Aquicultura - Nupélia, Universidade Estadual de Maringá - UEM, Av. Colombo, 5790, Maringá, PR, C.P 87020-900, Brazil
| | - Atsler Luana Lehun
- Programa de Pós-Graduação em Ecologia de Ambientes Aquáticos Continentais - PEA, Universidade Estadual de Maringá - UEM, Av. Colombo, 5790, Maringá, PR, C.P 87020-900, Brazil
- Núcleo de Pesquisa em Limnologia, Ictiologia e Aquicultura - Nupélia, Universidade Estadual de Maringá - UEM, Av. Colombo, 5790, Maringá, PR, C.P 87020-900, Brazil
| | - Wagner Toshio Hasuike
- Programa de Pós-Graduação em Biologia Comparada - PGB, Universidade Estadual de Maringá - UEM, Av. Colombo, 5790, Maringá, PR, C.P 87020-900, Brazil
- Núcleo de Pesquisa em Limnologia, Ictiologia e Aquicultura - Nupélia, Universidade Estadual de Maringá - UEM, Av. Colombo, 5790, Maringá, PR, C.P 87020-900, Brazil
| | - Ricardo Massato Takemoto
- Programa de Pós-Graduação em Ecologia de Ambientes Aquáticos Continentais - PEA, Universidade Estadual de Maringá - UEM, Av. Colombo, 5790, Maringá, PR, C.P 87020-900, Brazil
- Programa de Pós-Graduação em Biologia Comparada - PGB, Universidade Estadual de Maringá - UEM, Av. Colombo, 5790, Maringá, PR, C.P 87020-900, Brazil
- Núcleo de Pesquisa em Limnologia, Ictiologia e Aquicultura - Nupélia, Universidade Estadual de Maringá - UEM, Av. Colombo, 5790, Maringá, PR, C.P 87020-900, Brazil
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Lima ES, Tavares-Dias M. Component communities and annual and seasonal variations of metazoan parasites in Eleotris pisonis (Gmelin, 1789) (Gobiiformes: Eleotridae) in the Amazon River, Brazil. REVISTA BRASILEIRA DE PARASITOLOGIA VETERINARIA = BRAZILIAN JOURNAL OF VETERINARY PARASITOLOGY : ORGAO OFICIAL DO COLEGIO BRASILEIRO DE PARASITOLOGIA VETERINARIA 2023; 32:e011623. [PMID: 38055437 DOI: 10.1590/s1984-29612023073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 10/23/2023] [Indexed: 12/08/2023]
Abstract
Our hypothesis for this study was that annual and seasonal variations do not influence the structure of the component communities and the diversity of metazoan parasites of spinycheek sleeper (Eleotris pisonis) in the Amazon River, state of Amapá, Brazil. A total of 164 fish were collected between 2020 and 2021, from which 888 parasites were found. In 2020, five species of parasites were found (one Nematoda, one Digenea, one Acanthocephala, one Arachnida and one Crustacea); and in 2021, five species were also found (three Nematoda, one Digenea and one Crustacea). Larvae of Contracaecum sp. were the dominant taxon throughout the study. The parasite species richness and Brillouin diversity index were higher in 2021, without significant differences between seasonal periods. Some component communities of parasites showed differences between years and between seasonal periods. These facts do not support the hypothesis that such variables would not influence the component communities of the parasites. Lastly, this report provides the first records of Spirocamallanus inopinatus, Genarchella genarchella, Acari, Ergasilus sp., Neoechinorhynchus sp., larvae of Pseudoproleptus sp. and larvae of Contracaecum sp. in E. pisonis.
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Affiliation(s)
- Elvis Silva Lima
- Programa de Pós-graduação em Biodiversidade e Biotecnologia (Rede Bionorte), Universidade Federal do Amapá - UNIFAP, Macapá, AP, Brasil
- Universidade do Estado do Amapá - UEAP, Macapá, AP, Brasil
| | - Marcos Tavares-Dias
- Programa de Pós-graduação em Biodiversidade e Biotecnologia (Rede Bionorte), Universidade Federal do Amapá - UNIFAP, Macapá, AP, Brasil
- Embrapa Amapá, Macapá, AP, Brasil
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Lima ES, Oliveira MSB, Tavares-Dias M. Temporal and seasonal variation of metazoan parasites in Pimelodus ornatus (Siluriformes: Pimelodidae) from the Amazon River, Brazil. Parasitol Res 2022; 121:3171-3181. [PMID: 36040631 DOI: 10.1007/s00436-022-07637-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 08/22/2022] [Indexed: 10/15/2022]
Abstract
This study investigated the influence of temporal and seasonal (i.e., rainy and dry seasons) in communities and infracommunities of metazoan parasites in Pimelodus ornatus, a Siluriformes from the Amazon River in the state of Amapá, in northern Brazil. A total of 144 fish were collected during 2020 and 2021. In 2020, five species of parasites were found (1 Monogenea, 3 Nematoda, and 1 Cestoda), and in 2021, seven species of parasites were found (1 Monogenea, 3 Nematoda, 1 Cestoda, 1 Digenea, and 1 Crustacea). In 2020, Spirocamallanus inopinatus was dominant, while in 2021, Contracaecum sp. was dominant. Brillouin diversity, species richness, and evenness were higher in 2021. There were differences for some parasite infracommunities between years and between seasonal periods. Brillouin diversity and species richness were higher in the rainy season, but there were no differences in evenness and Berger-Parker dominance between the seasonal periods. Temporal and seasonal variations were mainly influenced by rainfall levels, oxygen levels, and environmental temperature and, later, by the availability of infective stages of parasites in the environment and the size of the hosts. Lastly, the influence of the temporal and seasonal variations on the structure of communities and infracommunities of parasites was weaker than expected due to the low infection rates of the majority of parasites found.
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Affiliation(s)
- Elvis Silva Lima
- Programa de Pós-Graduação Em Biodiversidade e Biotecnologia (Rede Bionorte), Universidade Federal do Amapá (UNIFAP), Macapá, AP, Brazil. .,Universidade do Estado do Amapá (UEAP), Macapá, AP, Brazil.
| | - Marcos Sidney Brito Oliveira
- Programa de Pós-Graduação Em Biodiversidade Tropical (PPGBio), Universidade Federal do Amapá (UNIFAP), Macapá, Amapá, Brazil
| | - Marcos Tavares-Dias
- Programa de Pós-Graduação Em Biodiversidade e Biotecnologia (Rede Bionorte), Universidade Federal do Amapá (UNIFAP), Macapá, AP, Brazil.,Programa de Pós-Graduação Em Biodiversidade Tropical (PPGBio), Universidade Federal do Amapá (UNIFAP), Macapá, Amapá, Brazil.,Embrapa Amapá, Macapá, AP, Brazil
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