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Aspectos nutricionais na vegetação de manguezal do estuário do Rio Mucuri, Bahia, Brasil Rev. Bras. Bot.
CUZZUOL,GERALDO ROGÉRIO FAUSTINI; CAMPOS,ANDRÉA.
A existência de zonas monoespecíficas é característica no manguezal do rio Mucuri, BA, onde Laguncularia racemosa L. e Rhizophora mangle L. ocupam locais sob maior influência da maré e Avicennia germinans L. está restrita a locais de salinidade mais baixa. A vegetação neste manguezal é classificada em bosques ribeirinhos (margem do rio) e bosques de bacia (interior). Parâmetros físicos e químicos do sedimento e suas relações com a concentração dos nutrientes foliares foram associados à distribuição das espécies estudadas. Os resultados mostraram que A. germinans dominou sítios com menores valores de pH, de salinidade, de carga de troca catiônica e de silte e alto teor de argila, quando comparada às outras duas espécies estudadas. O substrato de R. mangle...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Mangrove; Minerals; Zonation; Avicennia germinans; Laguncularia racemosa; Rhizophora mangle.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042001000200013
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Concentrations and fractionation of carbon, iron, sulfur, nitrogen and phosphorus in mangrove sediments along an intertidal gradient (semi-arid climate, New Caledonia) ArchiMer
Deborde, Jonathan; Marchand, Cyril; Molnar, Nathalie; Della Patrona, Luc; Meziane, Tarik.
In mangrove ecosystems, strong reciprocal interactions exist between plant and substrate. Under semi-arid climate, Rhizophora spp. are usually predominant, colonizing the seashore, and Avicennia marina develops at the edge of salt-flats, which is the highest zone in the intertidal range. Along this zonation, distribution and speciation of C, Fe, S, N, and P in sediments and pore-waters were investigated. From the land-side to the sea-side of the mangrove, sediments were characterized by I/ increase in: (i) water content; (ii) TOC; (iii) mangrove-derived OM; II/ and decrease in: (i) salinity; (ii) redox; (iii) pH; (iv) solid Fe and solid P. Beneath Avicennia and Rhizophora, TS accumulated at depth, probably as a result of reduction of iron oxides and...
Tipo: Text Palavras-chave: Mangrove; Zonation; Biogeochemistry; New Caledonia.
Ano: 2015 URL: https://archimer.ifremer.fr/doc/00251/36252/34802.pdf
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Crustacea decapoda da praia rochosa da Ilha do Farol, Matinhos, Paraná: II. Distribuição espacial de densidade das populações Zoologia
Masunari,Setuko; Dubiaski-Silva,Janete.
Decapod crustaceans from rocky shore at Farol Isle, Matinhos, Paraná, Brazil. II. Spatial distribution of population densities. A study of the spatial distribution of the decapod populations from a rocky shore at Farol Isle, Matinhos, State of Paraná, Brazil (25º51'S, 48º32'W) was canied out. In the supralittoral the rocky surface is covered partially by a layer of litter coming from the terrestrial habitats; in the midlittoral boulders and pebbles cover the rocky basin and in the infralittoral, there is a belt of seaweeds. A total of 8 samples were taken by hand, two from each of the following levels: supralittoral (emersion time 8-12 hours), upper midlittoral (4-8), lower midlittoral (0-4) and limit between midlittoral and infralittoral, monthly, from...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Decapod crustacean; Spatial density distribution; Zonation; Rocky shore; Farol Isle.
Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751998000300010
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Développement d'une méthodologie de qualification de l'espace côtier. Application à la Façade Méditerranéenne ArchiMer
Denis, Jacques; Miossec, Laurence.
Le milieu littoral est soumis à une forte influence de la part du milieu terrestre. Sa qualité, dont la tendance est à la dégradation, est l'objet de fortes préoccupations suscitées par la nécessité d'une gestion plus rigoureuse de la ressource Eau, dans l'ensemble de la zone côtière. L'évaluation même de la qualité du milieu littoral devient un élément clé dans ce processus de gestion, dit de l'amont par l'aval et demande, pour ce faire, un outil adapté capable de satisfaire cette exigence. Cet outil consiste en une méthodologie d'approche de l'espace côtier. Elle est à la fois globale, pour son échelle d'application à la façade méditerranéenne entière et intégrée, pour la prise en compte d'un ensemble de facteurs influants sur la qualité résultante. La...
Tipo: Text Palavras-chave: Gestion intégrée de la zone côtière; Zonation; Analyse multicritère; Qualité du milieu littoral; Système d'information sur l'environnement; Integrated Coastal Zone Management; Coastal Zoning; Multicriteria Analysis; Coastal Quality; Environmental Information System.
Ano: 1996 URL: http://archimer.ifremer.fr/doc/00132/24276/22274.pdf
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Dry season distribution of hydroids in a small tropical estuary, Pernambuco, Brazil Naturalis
Calder, D.R.; Maÿal, E.M..
Hydroid distribution patterns along a horizontal ecocline in the Rio Formoso/Rio Ariquindá/Rio Porto Alegre system, a small and seasonally poikilohaline estuary on the tropical northeast coast of Brazil, were investigated. Collecting was undertaken during the dry season, in November 1993, by diving (with and without SCUBA). Nine stations were sampled on a transect extending from a reef outside the river mouth to a mangrove system at the upper end of the estuary. Four major regions were distinguished along the ecocline based on numerical analyses of hydroid species/station location data: (1) nearshore reef — a sandstone ledge outside the entrance of the estuary; (2) river mouth — a sandy and shelly flood-tidal delta area inside the entrance of the Rio...
Tipo: Article / Letter to the editor Palavras-chave: Cnidaria; Hydrozoa; Hydroids; Estuary; Zonation; Distribution; Ecology; Brazil.; 42.72.
Ano: 1998 URL: http://www.repository.naturalis.nl/record/317616
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Longitudinal variation of attributes from flagellate protozoan community in tropical streams - doi: 10.4025/actascibiolsci.v33i2.7228 Biological Sciences
Camargo, Janielly Carvalho; Universidade Estadual de Maringá; Machado Velho, Luiz Felipe; Universidade Estadual de Maringá.
This study verified the existence of longitudinal patterns in species composition, richness, density and biomass of flagellate protozoan in tropical streams and investigated whether the possible zonation patterns are different between two periods of the year. For this, samplings were carried out in three regions from 10 streams, during the summer and winter. The flagellate community may be considered species-rich, because it was represented by 106 taxa, belonging to 8 orders and 1 residual group. The values of density and biomass are greater than those commonly found in other lotic environments, with mean values close to 2.3x104 cels. mL-1 and 150.8 µgC L-1. We did not observe any conspicuous and significant longitudinal pattern of the attributes...
Palavras-chave: 2.05.00.00-9 Protozooplankton; Community structure; Zonation; Lotic environments Ecologia Protozooplankton; Community structure; Zonation; Lotic environments.
Ano: 2011 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/7228
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Macroinfauna of Six Beaches near Guaratuba Bay, Southern Brazil BABT
Barros,Francisco; Borzone,Carlos Alberto; Rosso,Sergio.
Benthic macroinfauna of six beaches near to Guaratuba Bay, Paraná, Brazil were studied in summer and winter of 1994. Sampling stations were distributed along a transect, from upper of the drift line to depths of nearly 3 m behind the first break of the surf zone. Biological and sedimentological samples, slope, wave height and period were recorded. Subtidal samples were collected by scuba diving. The beaches varied from extremely inclined, composed of coarse sediments, to low inclined, composed of fine and very fine sands. The polychaete Scolelepis squamata, was the numerically dominant species in those beaches composed by fine to very fine sand in the subaereal profile. The echinoderm Mellita quinquiesperforata occurred in the last stations of the surf...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Macroinfauna; Sandy beaches; Zonation; Morphodynamics; Paraná; Brazil.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132001000400005
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Recolonization of experimental gaps by the mussels Brachidontes darwinianus and B. solisianus in a subtropical rocky shore BABT
Tanaka,Marcel Okamoto.
In this study, the recolonization speed of the mussels Brachidontes darwinianus and B. solisianus was compared to evaluate their responses to gaps opened by disturbances in the rocky shore. B. darwinianus was much faster than B. solisianus, rapidly closing gaps in the mussel bed. When they co-occurred, distribution patterns of these species were related not only with distinct physiological tolerances but also with responses to disturbance. B. darwinianus was more tolerant to low salinities, dominated estuarine zones generally occuring lower in the midlittoral, and presented a faster response to opened gaps.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bivalve; Intertidal; Rocky shore; Zonation; Mytilidae.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000100015
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Spatial distribution of the Ocypode quadrata (Crustacea: Ocypodidae) along estuarine environments in the Paranaguá Bay Complex, southern Brazil Zoologia
Rosa,Leonardo C. da; Borzone,Carlos A..
This study examines the spatial distribution of the ghost crabs, Ocypode quadrata Fabricius, 1787, in thirteen estuarine sandy beaches located along two main axes of the Paranaguá Bay Estuarine Complex, southern Brazil. Burrow densities of ghost crabs were measured at three beach levels established around the high tide mark during the summer and winter of 2005. All beaches showed a steep beach face slope (2.6 to 8.3º) with sediment composition varying from well sorted fine sand to very poorly sorted coarse sand towards the upper estuary. Water salinity ranged from around 31 at those beaches near the bay inlet, to 14 at beaches in the inner estuary. The burrow densities of O. quadrata in the estuarine beaches were similar to those observed in the oceanic...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Estuarine sandy beaches; Low-energy environments; Management and conservation; Salinity; Zonation.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752008000300001
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Spatial structure of coral reef fish communities in the Ryukyu Islands, southern Japan ArchiMer
Lecchini, D; Adjeroud, M; Pratchett, Ms; Cadoret, L; Galzin, R.
Coral reef fishes often exhibit a high degree of structure in their distribution and abundance, but the factors that influence their spatial arrangement are poorly understood. This study sought to explain the spatial structure of coral reef fish communities in the Ryukyu Archipelago. southern Japan. Visual surveys of coral reef fishes were conducted at multiple stations across the fringing reef (from the inner reef flat to the outer slope) at each of three different islands; Aka, Ishigaki and Sesoko. Spatial variation in fish communities (within and among reefs) was then compared to changes in environmental variables (water depth, distance from the shoreline, reef zone, coral abundance and coral richness). Despite being small islands, the total species...
Tipo: Text Palavras-chave: Analyse des correspondances canoniques; Répartition spatiale; Pomacentridae; Zonation; Canonical correspondence analysis; Distribution; Pomacentridae; Zonation.
Ano: 2003 URL: http://archimer.ifremer.fr/doc/00321/43246/42977.pdf
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Systematic conservation planning in the eastern English Channel: comparing the Marxan and Zonation decision-support tools ArchiMer
Delavenne, Juliette; Metcalfe, Kristian; Smith, Robert J.; Vaz, Sandrine; Martin, Corinne S.; Dupuis, Ludovic; Coppin, Franck; Carpentier, Andre.
The systematic conservation approach is now commonly used for the design of efficient marine protected area (MPA) networks. Identifying these priority areas often involves using specific conservation-planning software. Several of these software programmes have been developed in recent years, each of which differs in the underlying algorithms used. Here, we investigate whether the choice of software influences the location of priority areas by comparing outputs from Marxan and Zonation, two widely used conservation-planning, decision-support tools. Using biological and socio-economic data from the eastern English Channel, we compared their outputs and showed that the two software packages identified similar sets of priority areas, even though the relatively...
Tipo: Text Palavras-chave: Eastern English Channel; Marine conservation planning; Marxan; Spatial conservation prioritization; Zonation.
Ano: 2012 URL: http://archimer.ifremer.fr/doc/00054/16518/14088.pdf
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Zoneamento ecológico para plantios florestais no Estado de Santa Catarina. Infoteca-e
EMBRAPA. Centro Nacional de Pesquisa de Florestas..
1988
Tipo: Documentos (INFOTECA-E) Palavras-chave: Ecologia florestal; Zoneamento bioclimático; Meio ambiente; Brasil; Santa Catarina; Forests; Forest ecology; Zonation; Environments; Climatics zones; Espécie exótica; Bioma; Zoneamento.
Ano: 1988 URL: http://www.infoteca.cnptia.embrapa.br/handle/doc/294054
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