Do changes in riparian zones affect periphyton growth and invertebrate colonization on rocky substrates in Atlantic Forest streams?

Author:

Kiffer Jr. Walace P.1ORCID,Giuberti Thaís Z.2ORCID,Serpa Karoline V.1ORCID,Mendes Flávio2ORCID,Moretti Marcelo S.1ORCID

Affiliation:

1. Universidade Vila Velha, Brazil; Universidade Vila Velha, Brazil

2. Universidade Vila Velha, Brazil

Abstract

ABSTRACT: We evaluated the growth of periphyton and colonization of sterilized cobbles by invertebrates in three coastal streams of the Atlantic Forest (Southeast Brazil) that differ in the conservation level of riparian zones. Because of differences in light availability and water temperature, we hypothesized the growth of periphytic algae would be higher in the most altered stream. Consequently, invertebrate assemblages would differ among streams. Cobbles with similar sizes were ashed and incubated for 7, 15, 30, 45 and 60 days in the studied streams. Despite periphyton growth was faster in the most altered stream, contents of chlorophyll-a did not differ among streams. A total of 954 individuals (98% insects) belonging to 36 taxa was found. Invertebrate density was higher and increased throughout the experiment in the preserved stream, while invertebrate biomass was higher on the initial sampling intervals (7 and 15 days). A stream effect on invertebrate assemblages was observed after the 15th day and 17 taxa were found only in the preserved stream. Leptophlebiidae (Ephemeroptera), Hydroptilidae, Helichopsychidae, Leptoceridae (Trichoptera) and Orthocladiinae (Diptera) showed specificities with the assemblages found in the preserved stream and no taxa proved to be an indicator of the assemblages found in the altered streams. These results showed that changes in the riparian zones of Atlantic Forest streams did not affect the content of chlorophyll-a on rocky substrates, but the growth of periphyton influenced the density and structural composition of invertebrate assemblages. Our findings partially support the proposed hypothesis and conform to the notion of the importance of periphyton community for the colonization of exposed substrates by invertebrates and for evaluating the consequences of anthropogenic changes in ecosystem functioning and aquatic communities.

Publisher

FapUNIFESP (SciELO)

Subject

Animal Science and Zoology

Reference57 articles.

1. Köppen’s climate classification map for Brazil;Alvares C. A.;Meteorologische Zeitschrift,2013

2. Influence of habitat and land use on the assemblages of Ephemeroptera, Plecoptera, and Trichoptera in neotropical streams;Amaral P. H. M.;Journal of Insect Science,2015

3. Canonical analysis of principal coordinates: A useful method of constrained ordination for ecology;Anderson M. J.;Ecology,2003

4. Method 446.0, In vitro determination of chlorophylls a, b, c1, +c2 and pheopigments in marine and freshwater algae by visible spectrophotometry;Arar E. J,1997

5. Functional feeding groups of Brazilian Ephemeroptera nymphs: ultrastructure of mouthparts;Baptista D. F.;International Journal Limnology,2006

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