Biodiversidade de parasitos da piranha vermelha Pygocentrus nattereri (Kner, 1858) (Characiformes; Serrasalmidae) e sua avaliação como bioindicadores na Amazônia Central
355 specimens were studied Pygocentrus captured for four nattereri expeditions, in March, June, September and December 2008 in six lakes lowland river Solimões: Baixio Black Iauara, Anana, Campina and Maracá. The points of collections are situated between the cities of Manaus and Coari in Amazona...
| Autor principal: | Morais, Aprigio Mota |
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| Grau: | Tese |
| Idioma: | por |
| Publicado em: |
Instituto Nacional de Pesquisas da Amazônia - INPA
2020
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| Assuntos: | |
| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/11480 http://lattes.cnpq.br/1303297048201877 |
| Resumo: |
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355 specimens were studied Pygocentrus captured for four nattereri
expeditions, in March, June, September and December 2008 in six lakes
lowland river Solimões: Baixio Black Iauara, Anana, Campina and Maracá. The points of
collections are situated between the cities of Manaus and Coari in Amazonas State in a
path of approximately 400 km which is the route for oil and gas transportation in the Amazon
Central, therefore, sensitive to accidents arising out of such transport. Fish measured
15,4cm ± 3.5 and 2.7 ± weighed 230,9g. The objectives of this study were to describe
taxonomically the parasitic fauna of Pygocentrus nattereri (red bitch) and through
qualitative, quantitative methods (ecological descriptors) and assess the bioaccumulative
Use of parasitic species as bioindicators tool for environmental changes in
Central Amazon. All fish were infected by at least one sort of
metazoan. They were collected and identified 52 664 parasites belonging to 4 phyla
recorded in 9 different taxonomic groups: Filo Platyhelminthes (Monogenoidea,
Cestoda and Trematoda), Acantocephala Filo, Filo Nematoda, and Phylum Arthropoda (Copepoda,
Branchiura, Pentastomida and Isopoda). Rose from 47 to 57 the number of cited species
P. nattereri. The parasitological indexes, ecological descriptors, and statistical analysis,
highlighted species Monogenoidea and Nematodes as bioindicator effect. The analysis
by qualitative spectroscopy enegia Dispersive (EDS) recorded the presence of Al, C, Co,
Fe, Mg, O, P, S, Si, Zn, Pt, Po, K, PSA, Na, Er, Tm, Ru, Hf, Ti, Cu, Br, W, Cl, Cd, Pd, Ni and Pb
the nematode Procamallanus (Spirocamallanus) inopinatus. Elements such as Zn, Co, Pd, Cu,
Hf and Er have known biological function at low concentrations while Pb,
Cd, Ni, Tm, W, Ru, Pt, Po and Ti do not have a defined biological function and can be
due to small leaks from vessels sailing through the area.
In the nematode Procamallanus (S.) inopinatus been detected bioaccumulating ability
for trace elements, mainly heavy metals such as Cu, Pb, Cd and Ni, at levels
concentrations above those found in the host and collection environment. The study
He concluded that the parasitic fauna P. nattereri can be used as an effective
bioindicator tool effect and accumulation, contributing to monitoring the
studied environment. |