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Compendio de Ciencias Veterinarias

On-line version ISSN 2226-1761

Abstract

RIOS MORINIGO, V. M. et al. GROWTH EVALUATION AND BIOLOGICAL DEVELOPMENT OF ICHTHYOFAUNA THROUGH OTOLITHS AND SCALES STRUCTURE AND ITS RELATIONSHIP WITH WATER QUALITY OF YPACARAI LAKE. Compend. cienc. vet [online]. 2018, vol.8, n.1, pp.26-32. ISSN 2226-1761.  https://doi.org/10.18004/compend.cienc.vet.2018.08.01.26-32.

The balance of organisms within a system is the ability to cope with and sustain a biotic of organisms in ideal functioning, taking into account species, diversity and organization comparable to that found in an uncontaminated habitat. Water pollution, caused by the activities carried out by the human being, which makes it improper or dangerous for consumption, industry, agriculture, fishing and recreational activities. The current history of pollution at the national level refers to natural bodies of water that cross cities and productive areas, therefore the product of pollution has influence at the level of the basin of Lake Ypacarai. Currently this body of water has a problem of eutrophication due to the presence of algae and cyanobacteria present by the action of external agents (sewage, garbage, etc.). The research evaluated the biological growth and development of the Ichthyofauna through the structure of the otoliths and their relationship with the water quality of Lake Ypacarai. 474 specimens of fish caught by scientific fishing were collected. The results related water quality through physical-chemical parameters and the growth of fish using biometric measurements.

Keywords : Otoliths; Ichthyofauna; Lake Ypacarai; Water quality; growth.

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