Subtidal benthic marine algae of the Marine State Park of Laje de Santos (São Paulo, Brazil)

Filho, Gilberto M. Amado; Horta, Paulo Antunes; Brasileiro, Poliana S.; Barros-Barreto, Maria Beatriz; Fujii, Mutuê T.

doi:10.1590/s1679-87592006000300006

Cited by 34 publications

(24 citation statements)

References 10 publications

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“…These results can be explained by the high instability caused over the beds by the frequency of typical storm disturbance conditions along the southeastern Brazilian coast, which is higher in winter than in summer (Soares-Gomes and Pires-Vanin 2003). The high species richness or diversity observed in this study is most likely related to the reduced frequency of storm conditions in summer in some areas of the Brazilian continental shelf (Soares-Gomes and Pires-Vanin 2003, Amado-Filho et al 2006).…”

Section: Discussionmentioning

confidence: 70%

“…Estos resultados pueden explicarse por la gran inestabilidad causada sobre los mantos por la frecuencia de las tormentas típicas a lo largo de la costa sudoriental de Brasil, la cual es mayor en invierno que en verano (Soares-Gomes y Pires-Vanin 2003). La gran riqueza de especies o diversidad observada en este estudio probablemente esté relacionada con la menor frecuencia de condiciones de tormenta durante el verano en algunas zonas de la plataforma continental brasileña (SoaresGomes y Pires-Vanin 2003, Amado-Filho et al 2006).…”

Section: Discussionunclassified

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Structure of rhodolith beds from 4 to 55 meters deep along the southern coast of Espírito Santo State, Brazil

et al. 2007

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Rhodoliths are one of the most extensive benthic communities of the Brazilian continental shelf, but their structure is poorly known. The richest marine flora of Brazil´ s coastal zone is found in Espírito Santo State and its diversity has been partly associated with the presence of extensive areas of rhodoliths, extending from the intertidal zone to 120 m across the continental shelf. One species of kelp, Laminaria abyssalis, is endemic to this area and occurs between 45 and 120 m depth. Our objective was to determine the density and physical dimensions of the superficial rhodoliths between 4 and 55 m depth in the southern region of Espírito Santo State. The study area was 3 to 45 km offshore. Samples were obtained in 2004 and 2005 by Scuba diving in three depth zones: 4–18 m, 25–30 m and 50–55 m. Transect lines and video images were used to determine rhodolith density. The diameter and sphericity of at least 60 individuals from each zone were measured. Rhodolith size increased and density decreased from the shallow to the deeper zones. Spheroidal was the typical shape throughout the depth zones. Five rhodolith-forming genera were identified: Lithothamnion, Lithophyllum, Hydrolithon, Neogoniolithon and Sporolithon. Epibenthic biomass and species richness over the rhodolith bed in the shallow zone was lowest in winter, likely the result of disturbance caused by typical winter storms. Changes in light and temperature are probably the most important factors in the changes observed in the rhodolith beds from the deepest zones.

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Section: Discussionmentioning

confidence: 70%

Section: Discussionunclassified

Structure of rhodolith beds from 4 to 55 meters deep along the southern coast of Espírito Santo State, Brazil

et al. 2007

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“…2) (Amado-Filho et al 2006Peña y Bárbara 2008). A lo largo de cada línea, se colocaron aleatoriamente cuatro cuadrantes (n = 8 para cada profundidad).…”

Section: Materiales Y Métodosunclassified

Seaweed diversity associated with a Brazilian tropical rhodolith bed

et al. 2010

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ABSTRACT. This study describes the predominantly tropical, subtidal seaweed populations growing on rhodoliths between 4 and 18 m depth in the southern part of Espírito Santo State (Brazil). Qualitative and quantitative sampling revealed species-rich algal communities, comprising 167 species. Three species of rhodophytes represent new records for the Brazilian marine flora (Lithothamnion muelleri, Scinaia aborealis, and Mesophyllum engelhartii). Marked seasonal differences in fleshy algal species composition and abundance were related to seasonal instabilities caused by winter-storm disturbance over the rhodolith beds. In relation to depth, rhodolith density appears to be an important factor for the variation in the abundance of fleshy algae. The rhodolith community is composed of at least seven nongeniculate crustose coralline algal species. Rhodolith beds in southern Espírito Santo State, in an area of 150 km 2 , provide an important habitat for epibenthic communities, supporting 25% of the known macroalgal species richness along the Brazilian coast.Key words: rhodoliths, marine algae of Brazil, benthic algal community, Espírito Santo State, crustose coralline algae. RESUMEN.Se describen las poblaciones de las macroalgas submareales predominantemente tropicales que crecen sobre rodolitos entre 4 y 18 m de profundidad en la parte sur del estado de Espírito Santo (Brasil). Muestreos cualitativos y cuantitativos revelaron comunidades ricas en especies de algas, incluyendo 167 especies. Tres especies de rodofitas son nuevas adiciones a la flora marina de Brasil (Lithothamnion muelleri, Scinaia aborealis y Mesophyllum engelhartii). Las marcadas diferencias estacionales en la composición y abundancia de especies de algas carnosas se relacionaron con la inestabilidad causada por el disturbio de tormentas invernales sobre los mantos de rodolitos. En cuanto a la profundidad, la densidad de rodolitos parece ser un factor importante para la variación en la abundancia de algas carnosas. La comunidad de rodolitos está formada por al menos siete especies de algas coralinas no geniculadas. Se demostró que los mantos de rodolitos, en un área de 150 km 2 , proporcionan un hábitat importante para las comunidades bentónicas, manteniendo 25% de la riqueza de especies de macroalgas conocidas para la costa brasileña.Palabras clave: rodolitos, algas marinas de Brasil, comunidad algal bentónica, estado de Espírito Santo, algas coralinas incrustantes.

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“…Studying the impact of coastal urbanization on the structure of phytobenthic communities in southern Brazil, Martins et al (2012) suggest that pristine-like environments are characterized by an increase of Rhodophyta species and that urbanized environments are dominated by opportunistic algae, including such green algae as Ulva and Cladophora. Amado-Filho et al (2006) studied the infralittoral seaweeds from Laje de Santos, Sã o Paulo State, identifying Cladophora vagabunda, Padina gymnospora, Hypnea spinella (C. Agardh) Kü tz., Centroceras clavulatum and Amphiroa beauvoisii J.V. Lamour as conspicuous species during the summer and winter.…”

Section: Discussionmentioning

confidence: 99%

“…Also, these activities can cause species introduction, as well disappearance of sensitive species and/or the predominance of opportunistic taxa. In general, natural system degradation occurs at a faster rate than the remediation of natural systems by the introduction of conservation initiatives (Amado-Filho et al 2006). For these reasons, this study proposed a biological database focused on seaweed diversity in insular areas of Paraná , aiming to support future coastal monitoring and or conservation programs.…”

Section: Introductionmentioning

confidence: 99%

Benthic marine algae from the insular areas of Paraná, Brazil: new database to support the conservation of marine ecosystems

et al. 2014

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This study describes the diversity of benthic marine algae from insular areas of the southern Brazilian coast. Algal samples were collected between 2006 and 2010 during the winter and the summer seasons at three sites in the coastal waters of Paraná , Brazil: Ilha do Mel, Currais Archipelago and Ilha do Farol. The samples were collected along parallel transects on the coast. In this survey, Paraná marine phycoflora comprised 139 taxa (90 Rhodophyta, 27 Chlorophyta and 22 Phaeophyceae). Fifty-two species represent new records for the state, and 14 taxa are present at all sampling sites and in both seasons. Higher diversities of rhodophytes and chlorophytes were observed at Ilha do Mel, while phaeophytes were more diverse at Currais Archipelago. Lower algal diversity was observed at Ilha do Farol, a sampling station which is near an urban area. Ceramiaceae, Rhodomelaceae and Corallinaceae were dominant among Rhodophyta, Cladophoraceae and Ulvaceae among Chlorophyta, and Dictyotaceae and Sargassaceae among Phaeophyceae. Seasonal and spatial differences in species composition could be explained by the availability of consolidated substrate, water transparency and proximity to an urban area. Seaweed biodiversity from the Paraná coast also presents low species richness compared to other Brazilian states as a result of the shorter coastline, lower availability of rocky shores, and the location between estuarine systems (Paranaguá and Guaratuba Bays). These bays input a large amount of continental water, resulting in decreased salinity, high concentrations of suspended particulate matter and low transparency in the water column. Knowledge of seaweed diversity is essential for conservation studies. In addition, environmental monitoring programs undertaken during medium-to long-term seasonal changes could be improved to reflect changes detected through new records, the introduction of alien species in the area of interest, or even dominance of opportunistic species over other taxa. Therefore, a database able to support the monitoring of biodiversity is a fundamental step in detecting environmental impacts that could change seaweed biogeography, mainly in urbanized and harbor areas. Keywords: Seaweeds, inventory, Paraná Coast, Southern Atlantic.PELLIZZARI, F., BERNARDI, J., SILVA, E.M., SILVA, M.C., YOKOYA, N.S. Algas marinhas bentônicas de áreas insulares do Paraná, sul do Brasil: checklist, novas ocorrências para o Estado e implicações para a conservação.http Biota Neotropica. 14(2): e20130011.Biota Neotropica. 14(2): e20130011.Farol, ponto amostral mais pró ximo a uma á rea urbana. Ceramiaceae, Rhodomelaceae e Corallinaceae foram dominantes entre Rhodophyta, Cladophoraceae e Ulvaceae entre Chlorophyta, e Dictyotaceae e Sargassaceae entre Phaeophyceae. A diversidade de algas marinhas bentô nicas na costa do Paraná é menor quando comparada a outros estados brasileiros e isto está associado à menor extensã o de sua linha de costa, menor disponibilidade de substratos consolidados para recrutamento e localizaçã o e...

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Subtidal benthic marine algae of the Marine State Park of Laje de Santos (São Paulo, Brazil)

Cited by 34 publications

References 10 publications

Structure of rhodolith beds from 4 to 55 meters deep along the southern coast of Espírito Santo State, Brazil

Structure of rhodolith beds from 4 to 55 meters deep along the southern coast of Espírito Santo State, Brazil

Seaweed diversity associated with a Brazilian tropical rhodolith bed

Benthic marine algae from the insular areas of Paraná, Brazil: new database to support the conservation of marine ecosystems

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