Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Relationship among carnivorous macrophyte Utricularia foliosa L. and species composition and life forms of periphytic algae community

Full text
Author(s):
Thiago Rodrigues dos Santos [1] ; Carla Ferragut [2] ; Carlos Eduardo de Mattos Bicudo [3]
Total Authors: 3
Affiliation:
[1] Instituto de Botânica,. Núcleo de Pesquisas em Ecologia. Programa de Pós-gradução Biodiversidade Vegetal e Meio Ambiente - Brasil
[2] Instituto de Botânica,. Núcleo de Pesquisas em Ecologia. Programa de Pós-gradução Biodiversidade Vegetal e Meio Ambiente - Brasil
[3] Instituto de Botânica,. Núcleo de Pesquisas em Ecologia. Programa de Pós-gradução Biodiversidade Vegetal e Meio Ambiente - Brasil
Total Affiliations: 3
Document type: Journal article
Source: Acta Limnol. Bras.; v. 30, 2018-11-14.
Abstract

Abstract Aim Present study evaluated the life forms and taxonomic structure of the periphytic algae community on Utricularia foliosa L. (modified leaf and stem) and artificial substrate during the four seasons in a tropical shallow reservoir. Methods We evaluated the periphyton on natural and artificial substrate in order to evaluate the influence of substrate type on the taxonomic structure of algal community. Monospecific stands of U. foliosa were selected. Water and periphyton sampling were performed within U. foliosa stands in the autumn (April/2010), winter (July/2010), spring (November/2010) and summer (February/2011). Nylon thread was used as the artificial substrate. The community structure was evaluated through life forms, species richness, diversity and species composition. Results Species diversity was significantly different only among seasons. The life forms and species richness were different between substrate types and seasons. Entangled filamentous algae had higher biovolume in the periphyton on artificial substrate and unicellular flagellated algae had higher biovolume on natural substrate. Species composition changed among the seasons and species descriptors differed among substrates types. Species-level taxonomic classification responded clearly to the substrate type. Conclusions We concluded that the taxonomic structure and life forms of periphytic algae on artificial substrate poorly represented the natural periphyton on U. foliosa. The type of substrate strongly influenced the periphyton–Utricularia relationship. (AU)

FAPESP's process: 09/11721-5 - Seasonal avaluation of structrure and nutrient status (N,P) of the periphytic community growth on artificial substratum and associated to the canivorous macrophyte Utricularia spp. in the Ninféias Pond (PEFI, São Paulo)
Grantee:Thiago Rodrigues dos Santos
Support Opportunities: Scholarships in Brazil - Master