Spatial and temporal variation of the diversity and abundance of Cyanobacteria of Lake Yojoa (2014-2015)

Authors

  • Alba Isbela Hernandez Oviedo Universidad Nacional Autónoma de Honduras
  • Mirna Marin Universidad Nacional Autónoma de Honduras

DOI:

https://doi.org/10.5377/rct.v0i20.5922

Keywords:

Lake Yojoa, phytoplankton, cyanobacteria, Microcystis aeruginosa, Aphanacapsa delicatissima, Oscillatoria limosa

Abstract

The objective of the study was to identify and analyze the temporal and spatial variations of the diversity and abundance of cyanobacteria in Lake Yojoa between May 2014 and March 2015. 184 samples were analyzed identifying 9 families and 48 species of cyanobacteria, dominating Microcystis aeruginosa, Aphanocapsa delicatissima and Oscillatoria limosa.

The average cell / ml of cyanobacteria per sample decreased progressively, the highest 58,274 in sampling1 and the lowest in sampling 1,665. It is possible that the algal bloom occurred before days 1, since a greenish-brown surface scum corresponding to Oscillatoria limosa and Lyngbya sp. in the process of decomposition, many phytoflagellates and vorticelles between the colonies of Microcystis; Coinciding with high nitrogen and orthophosphate values of that sample.

Spatial and temporal diversity were similar. The temporal dominance was greater than the spatial dominance: Microcystis aeruginosa, Chrococcus limneticus, Chrococcus sp, Aphanocapsa delicatissima, Aphanocapsa mucicola, Aphanocapsa elachista, Lyngbya sp, Gleocapsa sp and Pseudoanabaena mucicola were the dominant species. A monitoring plan and management of toxic cyanobacteria blooms is recommended.

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Author Biographies

Alba Isbela Hernandez Oviedo, Universidad Nacional Autónoma de Honduras

Profesor de Limnologia, Laboratorio Hidrobiología Escuela de Biologia, Facultad de Ciencias

Mirna Marin, Universidad Nacional Autónoma de Honduras

Profesor Jubilado, Escuela de Biología, Facultad de Ciencias.

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Published

2018-05-18

How to Cite

Hernandez Oviedo, A. I. and Marin, M. (2018) “Spatial and temporal variation of the diversity and abundance of Cyanobacteria of Lake Yojoa (2014-2015)”, Jornual of Science and Technology, (20), pp. 47–70. doi: 10.5377/rct.v0i20.5922.

Issue

Number 21, December 2017

Section

Life Sciences and Health

License

© Journal Science and Technology

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