AI Article Synopsis
- The study hypothesized that annual and seasonal changes do not affect the structure and diversity of metazoan parasites in spinycheek sleeper fish in the Amazon River.
- A total of 164 fish were analyzed from 2020 to 2021, revealing 888 parasites, with annual variations observed, particularly in parasite species richness and diversity index.
- Findings contradicted the hypothesis, showing that while certain community differences existed between years and seasons, some species were first recorded in E. pisonis as significant contributors to the overall parasitic community.
Article 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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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10704881 | PMC |
| http://dx.doi.org/10.1590/S1984-29612023073 | DOI Listing |
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