Consulta: creatorFacets:"Zalmon,Ilana Rosental"
Registros recuperados: 9
Data/hora: 11/06/2024 05:17:53

Do natural disturbances have significant effects on sandy beach macrofauna of Southeastern Brazil?
Provedor de dados: 103
Autores: Costa,Leonardo Lopes; Machado,Phillipe Mota; Zalmon,Ilana Rosental.
ABSTRACT The role of morphodynamic features such as grain size, swash climate and wave action on the macrofauna of beaches are well-known. However, few studies have investigated natural disturbances as potential drivers of temporal community variations. In southeastern Brazil, we sampled the intertidal macrofauna of two sandy beaches to test whether seasonal disturbances as the frequency of storm wave events (SWE) and rainfall have significant influence on their composition and abundance. The macrofauna assemblage differed significantly between the rainy and the dry seasons, but rainfall was not the main driver of community changes, although both beaches are in the vicinity of extensive river plumes. Actually, SWE explained most macrofauna richness...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Community structure; Benthic community; Intertidal; Morphodynamics; Seasonality.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702019000100321

Abundance and diversity patterns of the sessile macrobenthic community associated with environmental gradients in Vitória Harbor, southeastern Brazil
Provedor de dados: 103
Autores: Zalmon,Ilana Rosental; Krohling,Werther; Ferreira,Carlos Eduardo Leite.
Harbor terminals and urban sewage effluents affect the composition and distribution of epibenthic organisms. In this study, we hypothesized that the benthic community structure at the Vitoria Harbor changes spatially in a ~3 km scale, and that these changes are associated with environmental gradients resulting from point-source sewage and differences in the physical and chemical parameters of the water along the harbor access channel. Four sites, internal (PI), intermediate-internal (PMI), intermediate-external (PME) and external (PE), varying from 0.5 to 4.0 km off the harbor, were sampled on five quadrats at six sampling dates (N = 30 per site). The epibenthic community on the shallow sublitoral rocky shore was sampled fortnightly from December 2005 to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Epibenthic community; Environmental gradient; Estuary; Sedimentation.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702011000500012

Potencial atrator de peixes ósseos em recife artificial no litoral norte do estado do Rio de Janeiro, Brasil
Provedor de dados: 104
Autores: Gomes,Marcelo Paes; Novelli,Ronaldo; Faria,Vicente Vieira; Zalmon,Ilana Rosental.
Artificial reefs have become an important and popular resource enhancement technique by concentrating fishes and by increasing natural production of biological resources. In order to increase the necto-benthic colonization potencial, an artificial reef was installed on the northern coast of Rio de Janeiro (21º27'S, 41ºOO'W), an area with typically low relief bottom. Measuring nearly 1500 m², the reef consisted of four sets of different materials randomly disposed: concrete pipes (N = 12); tires structures (N = 20); and cement tanks (N = 7) and pre-made blocks (N = 4). ln order to determine the artificial reef effects on the teleost community, trammel nets were used for monthly sampling the reef site (RA) and on a control area (AC) with sandy bottom. During...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artificial reef; Osteichthyes; Community structure; Temporal variation; Northern coast of Rio de Janeiro.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000300014

Potencial atrator de tubarões costeiros em recife artificial no litoral norte do estado do Rio de Janeiro, Brasil
Provedor de dados: 104
Autores: Faria,Vicente Vieira; Novelli,Ronaldo; Gomes,Marcelo Paes; Zalmon,Ilana Rosental.
Artificial reefs have been used in many countries to increase coastal fishery productivity. In order to increase fish attraction to the Northern Coast of Rio de Janeiro State, it was installed an artificial reef (1,500 m²) 5 nautical miles off Manguinhos's Bay (São Francisco de ltabapoana, Rio de Janeiro). The artificial structures were made of tires, concrete and cement blocks. A gill net of 125 x 3 m was monthly used in the artificial reef (AR) and in a control area (CA) to determine the effect of the experimental structures on the stock and diversity of coastal sharks. Considering the complexity of a sustainable elasmobranch exploitation, sharks were focused in this study. During 24 months of investigation (April/96 to March/98), a total of 325...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artificial reefs; Coastal sharks; Rio de Janeiro State Northern Coast.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000300017

Ethnoecology and socioeconomic around an artificial reef: the case of artisanal fisheries from southeastern Brazil
Provedor de dados: 49
Autores: Lima,Juliano Silva; Zappes,Camilah Antunes; Di Beneditto,Ana Paula Madeira; Zalmon,Ilana Rosental.
Abstract: The objective of this study is to describe the ethnoecological aspects, valorization, and commercialization of target species caught by artisanal fishers on the northern coast of Rio de Janeiro, southeastern Brazil. The data were obtained through semi-structured interviews conducted with 60 fishers from the fishing community of Guaxindiba (21°29'S, 41°00'W), which is associated with the Z-1 fishers' colony. Eighty-nine species were cited by the fishers and 44.1% are important commercial fish in the region. The fishers cited five distinct zones used to fish: border zone (68 species), estuary (41 spp.), artificial reef (27 spp.), "malacacheta" (24 spp.), and open ocean (10 spp.). The fishery resources were classified according to their gastronomic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artisanal fishing; Traditional knowledge; Fishery management.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000200213

Benthic Community zonation in a breakwater on the north coast of the state of Rio de Janeiro, Brazil
Provedor de dados: 52
Autores: Masi,Bruno Pereira; Macedo,Isabela Maria; Zalmon,Ilana Rosental.
The present study presents the vertical zonation pattern of the intertidal benthic organisms on granitic boulders in the Farol de São Tomé beach (22º02'S, 41º03'W), Rio de Janeiro State. Four sampling profiles using 20 x 20 cm quadrats through a photo quadrat technique revealed four horizontal bands: (1) Littoral Fringe characterized by empty space and Littorina; (2) Upper eulittoral mainly occupied by Chthamalus and bare rock; (3) Lower eulittoral characterized by Chthamalus, Phragmatopoma, Ulva and Centroceras; and (4) Sublittoral Fringe characterized by Ulva, Phragmatopoma and Hypnea. The high variability in the relative abundance of the dominant species among the profiles may be attributed to the high topographic irregularity, reflecting in different...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Intertidal zonation; Rocky shore; Benthic community; North coast of Rio de Janeiro.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000300016

Temporal and spatial variation on heavy metal concentrations in the bivalve Perna perna (LINNAEUS, 1758) on the northern coast of Rio de Janeiro State, Brazil
Provedor de dados: 52
Autores: Ferreira,Alexandre Gomes; Machado,André Luís dos Santos; Zalmon,Ilana Rosental.
Heavy metal (Cd, Cr, Cu, Fe, Mn, Ni, Pb and Zn) concentrations were studied in Perna perna from three beaches (Barra do Furado, Buena and Ponta do Retiro) on the northern coast of Rio de Janeiro State by ICP-AES. The average concentration was 0.3 ± 0.04 (Cd); 1.9 ± 0.6 (Cr); 6.1 ± 0.7 (Cu); 1,130 ± 113 (Fe); 22 ± 3.2 (Mn); 9.3 ± 4.6 (Ni); 0.4 ± 0.2 (Pb); 44 ± 5.8 (Zn) µg.g-1 dry weight. There were no significant difference for almost all the studied metals in relation to sex. Although, significant spatial variations (p &lt; 0.05) occurred for Cr, Pb and Ni with higher values for Barra do Furado. Temporal variations were significant (p &lt; 0.05) at the three beaches, however, no trends of accumulation were observed. The metal concentrations were similar to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Heavy metals; Mollusk; Spatial variation; Temporal variation.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000200020

Spatial and temporal variations of diurnal ichthyofauna on surf-zone of São Francisco do Itabapoana beaches, Rio de Janeiro State, Brazil
Provedor de dados: 52
Autores: Gomes,Marcelo Paes; Cunha,Miguel Siano; Zalmon,Ilana Rosental.
Spatial and temporal variations of diurnal ichthyofauna and the environmental variables influences on its distribution were studied at the surf-zone of three beaches of São Francisco do Itabapoana, northern coast of Rio de Janeiro, Brazil. From August/1999 to August/2000, three beach seine hauls were made monthly, and environmental variables were recorded. A total number of 4,562 fishes (74,155g) were sampled at the three beaches, where estuarine-dependent species prevailed (44%), followed by marine (31%), estuarine (19%) and freshwater species (3%). Species richness, number of individuals and wet weight were significantly higher at Gargaú, followed by Manguinhos and Barra do Itabapoana, respectively. Canonical Correspondence Analysis highlighted...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Spatial and temporal variations; Community ichthyofauna structure; Surf-zone; Environmental variables; North coast of Rio de Janeiro.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000400020

Epibenthic colonization on an artificial reef in a stressed environment off the north coast of the Rio de Janeiro State, Brazil
Provedor de dados: 52
Autores: Krohling,Werther; Zalmon,Ilana Rosental.
The influence of sedimentation and turbidity caused by the pluviometric precipitation and by the Paraiba do Sul River during the summer was investigated on an artificial reef along the north coast of Rio de Janeiro, Brazil. Four recruitment and four cumulative plates were removed monthly (January 2002 to February 2003) from the external surface of the concrete reef modules. Empty space was not a limiting factor the recruitment. Turnover rate and structural difference index were higher in the first months and reflected low change in the species dominance during almost the entire study period. The high correlation between the precipitation and the empty space suggested that rain influence the recruitment and the succession. The recruitment was possible...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Recruitment; Succession; Benthic community structure; Natural disturbance.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000100025