ECOTOXICOLOGICAL ASSESSMENT WITH PSEUDOKIRCHNERIELLA SUBCAPITATA (CHLOROPHYTA) AND PHYSICOCHEMICAL PARAMETERS IN THE UPPERMIDDLE PART OF CAMANA-MAJES-COLCA BASIN (AREQUIPA-PERU)

Autores

  • Ronald Huarachi Laboratory of Aquatic Biology, Academic Department of Biology, National University of Saint Augustine (UNSA), Av. Alcides Carrión s/n, Arequipa, Peru. https://orcid.org/0000-0002-3504-3399
  • Alex Dueñas Laboratory of Aquatic Biology, Academic Department of Biology, National University of Saint Augustine (UNSA), Av. Alcides Carrión s/n, Arequipa, Peru. https://orcid.org/0000-0001-8972-0386
  • Gustavo Mendoza Laboratory of Aquatic Biology, Academic Department of Biology, National University of Saint Augustine (UNSA), Av. Alcides Carrión s/n, Arequipa, Peru. https://orcid.org/0000-0002-3230-5015
  • Ursulo Yapo Laboratory of Aquatic Biology, Academic Department of Biology, National University of Saint Augustine (UNSA), Av. Alcides Carrión s/n, Arequipa, Peru. https://orcid.org/0000-0002-5863-129X
  • Giovani Alatrista Laboratory of Aquatic Biology, Academic Department of Biology, National University of Saint Augustine (UNSA), Av. Alcides Carrión s/n, Arequipa, Peru. https://orcid.org/0000-0003-3134-2997
  • Rosaura Gonzalez Laboratory of Aquatic Biology, Academic Department of Biology, National University of Saint Augustine (UNSA), Av. Alcides Carrión s/n, Arequipa, Peru. https://orcid.org/0009-0006-6194-1658

DOI:

https://doi.org/10.24039/rtb2014122347

Palavras-chave:

bioindicator, ecotoxicological, EQS, Pseudokirchneriella, rate of growth.

Resumo

The ecotoxicological evaluation of the upper-middle part of Camana-Majes-Colca Basin, Peru was -1carried out in three sampling points: Capiza, Colca and Majes compared with CuSO (1 mg·L ), 4 which is a toxic standard for the bioindicator microalga Pseudokirchneriella subcapitata. In each sampling point, pH, temperature, conductivity, dissolved oxygen, total suspended solids (TSS), biochemical oxygen demand (BOD), chemical oxygen demand (COD), sulfides, ammoniacal nitrogen, cyanide WAD, free cyanide, nitrates, total phosphorus, total nitrogen, thermo-tolerant coliforms, oils grease and heavy metals were measured. The lowest rate of P. subcapitata growth was in Capiza's sampling Point (0.008) where values of pH, manganese and iron exceeded Peruvian EQS (Environment Quality Standard) for water in category 3. These results show a correlation with high level of significance (P<0.01) between the physicochemical parameters pH, Mn, TSS and the growth inhibition percentage of P. subcapitata explained by the Pearson coefficient (r=0.98).

Downloads

Não há dados estatísticos.

Publicado

2014-02-26

Como Citar

Huarachi, R., Dueñas, A., Mendoza, G., Yapo, U., Alatrista, G., & Gonzalez, R. (2014). ECOTOXICOLOGICAL ASSESSMENT WITH PSEUDOKIRCHNERIELLA SUBCAPITATA (CHLOROPHYTA) AND PHYSICOCHEMICAL PARAMETERS IN THE UPPERMIDDLE PART OF CAMANA-MAJES-COLCA BASIN (AREQUIPA-PERU). The Biologist, 12(2), 181–192. https://doi.org/10.24039/rtb2014122347

Edição

Seção

Artigos Originais