NEMATODE COMMUNITY OF CONTINENTAL LAKES WITH DIFFERENT CONCENTRATIONS OF SALTS
DOI:
https://doi.org/10.65259/rnzool.v9i1.4Keywords:
Abiotic factors, Monhystrella, SalinityAbstract
The knowledge of freshwater biodiversity is lesser than that of marine aquatic ecosystems. The nematofauna of continental aquatic environments is less known than many other water groups. Because of such knowledge gaps, this paper aims to describe the structure of the nematode fauna in three water reservoirs, thus contributing to the knowledge on biodiversity in Brazilian continental waters. Abiotic factors varied among analyzed environments. Salinity, especially, had high values, characterizing the analyzed water reservoirs as brackish water or, in the case of the Olivedos reservoir, as saline. The nematofauna was represented by Monhystrella, Crocodorylaimus, Oncholaimus, Paracyatholaimus, Trefusia, Diplolaimella, Microlaimus, Pseudosteineria, Theristus and Odontophoroides. The Monhystrella was relevant for the ecosystems analyzed because it is in all water reservoirs. Trefusia, Pseudosteineria and Odonthoporoides were recorded, although not in inland water bodies. Juveniles and non-selective deposit feeders were prevalent in the nematofauna, as with other freshwater ecosystems in the world. This research brings new and relevant data on the nematofauna of continental waters.
Downloads
References
Rocha, C. F. D. (2005). Diversidade de organismos de água doce: uma revisão. Revista Brasileira de Zoologia, 22(3), 1-10.
Giere, O. (2009). Meiobenthology: The Microscopic Motile Fauna of Aquatic Sediments. Springer-Verlag.
Barbosa, J. E. L., Medeiros, E. S. F., Brasil, J., Cordeiro, R. S., Crispim, M. C. B., & Silva, G. H. G. (2012). Aquatic systems in semi-arid Brazil: limnology and management. Acta Limnologica Brasiliensia, 24(1), 103-118.
Leal, J. J. F., Esteves, F. A., & Bozelli, R. L. (2003). Effects of fish predation and limnological variables on zooplankton communities in a tropical lake. Hydrobiologia, 504(1-3), 1-9.
Ramos, S., & Lima, J. (2005). Biodiversidade e conservação de ecossistemas aquáticos continentais. In: Anais do Congresso Brasileiro de Limnologia, 2005, São Carlos. Anais do Congresso Brasileiro de Limnologia, 1, 1-10.
