Changes in diet of a neotropical cichlid in response to river damming
Acta sci., Biol. sci
;
41: e43880, 20190000. map, tab, graf
Article
in English
| LILACS, VETINDEX
| ID: biblio-1460847
ABSTRACT
Changes in diet of Laetacara araguaiae Ottoni and Costa, 2009 were evaluated in the Sucuriú River (Upper Paraná basin, Brazil) in an area with a small hydroelectric power plant, both before and after the formation of the reservoir, in order to answer Did the construction of the reservoir affected the diet of this species? The results showed greater change of diet composition in the upstream section of the reservoir. It was observed that before the formation of the reservoir and the first year after, the individuals from upstream section formed a group characterized by an insectivorous diet. With the dam construction and habitat change we observed that aquatic plant material, sediment, and algae predominated in the diet. These results show the opportunistic feeding habit of L. araguaiae and contribute to the understanding of how the impoundment of rivers can influence the trophic dynamics of the ichthyofauna.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Water Reservoirs
/
Cichlids
/
Diet
Limits:
Animals
Language:
English
Journal:
Acta sci., Biol. sci
Year:
2019
Type:
Article
Institution/Affiliation country:
Universidade Estadual de Mato Grosso do Sul/BR
/
Universidade Federal de Mato Grosso do Sul/BR
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