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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Asymmetric effects of changes in the habitat-forming algae Sargassum on different associated mobile faunas along Sao Paulo coast, Brazil

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Author(s):
Leite, Fosca P. P. [1] ; Bottcher, Claudia [1] ; Lewinsohn, Ilana D. A. [1] ; Siqueira, Silvana G. L. [1] ; Mansur, Karine F. R. [2] ; Longo, Pedro A. S. [3] ; Vieira, Edson A. [4]
Total Authors: 7
Affiliation:
[1] Univ Estadual Campinas UNICAMP, Dept Biol Anim, Inst Biol, Campinas - Brazil
[2] Univ Estadual Campinas UNICAMP, Programa Posgrad Biol Anim, Campinas - Brazil
[3] Univ Estadual Campinas UNICAMP, Programa Posgrad Ecol, Campinas - Brazil
[4] Univ Fed Rio Grande Norte UFRN, Ctr Biociencias, Dept Oceanog & Limnol, Lab Ecol Marinha, BR-5901400 Natal, RN - Brazil
Total Affiliations: 4
Document type: Journal article
Source: MARINE ECOLOGY-AN EVOLUTIONARY PERSPECTIVE; v. 42, n. 3 MAR 2021.
Web of Science Citations: 0
Abstract

Macroalgae constitute an important habitat for several marine invertebrates, and their biomass and structural complexity modulates the abundance and diversity of species that live on them. Overall, fluctuations in algae biomass inflict fluctuations in the abundance of the associated mobile macrofauna, but the structure of the community may vary according to how each group/species uses the resources provided by the algal habitat. Here, we evaluated how temporal variations in the biomass of Sargassum algal bed (increase, decrease, or maintenance) can affect the abundance, density, and assemblage structure of distinct associated faunistic groups. The collections were performed in three rocky shores located on the north coast of Sao Paulo, southeastern Brazil, during Fall and Spring. We observed different patterns of algal substrate variation between sampling events, and this reflected on variable effects on the associated fauna. The algal substrate reduction was accompanied by the reduction in the abundance and density of all associated faunal groups. However, the increase or maintenance of the algal substrate was accompanied by an increase in the abundance of peracarids, due to the dominance of herbivorous species, while other taxonomic groups like mollusks and polychaetes decreased or maintained their abundance, although with higher species evenness of gastropods when alga increases. Seasonal biomass variations in macroalgae beds are relevant for the dynamics of its associated fauna, and our results indicate that some taxonomic groups may preferentially use the available extra resources originated from biomass increment when compared to other groups. (AU)

FAPESP's process: 01/08861-8 - Fauna associated with the phytal of the Ilha dos Porcos Pequenos of the region of Picinguaba, Ubatuba, north coast of the State of São Paulo: temporal comparsion of the composition and abundance of the fauna of peracarids
Grantee:Claudia Bottcher
Support Opportunities: Scholarships in Brazil - Scientific Initiation
FAPESP's process: 98/07090-3 - Benthic marine biodiversity in the state of São Paulo
Grantee:Antonia Cecília Zacagnini Amaral
Support Opportunities: BIOTA-FAPESP Program - Thematic Grants
FAPESP's process: 01/08859-3 - Fauna associated to the phytal of the Ilha dos Porcos Pequenos of the region of Picinguaba, Ubatuba, north coast of the State of São Paulo: temporal comparsion temporal of the composition and abundance of the macro and meio fauna
Grantee:Ilana Daniella Araujo Lewinsohn
Support Opportunities: Scholarships in Brazil - Scientific Initiation
FAPESP's process: 02/01199-0 - Benthic marine biodiversity in the State of São Paulo
Grantee:Silvana Gomes Leite Siqueira
Support Opportunities: Scholarships in Brazil - Technical Training Program - Technical Training