Consulta: subjectFacets:"Sandy beaches"
Registros recuperados: 16
Data/hora: 03/06/2024 10:17:38

Temporal variability of benthic macrofauna on Cassino beach, southernmost Brazil
Provedor de dados: Iheringia Série Zoologia
Autores: Neves,Luciano P. das; Silva,Pedro de S. R. da; Bemvenuti,Carlos E.
The temporal variability of benthic macrofauna on Cassino beach, southernmost Brazil, was studied for a period of one year (June 2004 to May 2005) based on monthly sampling. Three sites were selected distant 50m from each other. At each site, 3 transects were established, 2m equidistant from one another. Each transect extended from the base of the primary dunes to the inner surf zone at approximately 1m in depth, with 7 or 8 sampling levels. Within transects, the distance between the levels was 20m until the upper swash zone, from which distance was 10m until the 1-meter isobath. The temporal variation in the abundance of benthic macrofauna observed in the present study can be attributed to (1) the positive effects of the recruitment peaks and migration of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sandy beaches; Benthic macrofauna; Temporal variation; Cassino beach.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212008000100005

How does eutrophication impact bundles of ecosystem services in multiple coastal habitats using state-and-transition models
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Kermagoret, Charlene; Claudet, Joachim; Derolez, Valerie; Nugues, Maggy M.; Ouisse, Vincent; Quillien, Nolwenn; Baulaz, Yoann; Le Mao, Patrick; Scemama, Pierre; Vaschalde, Diane; Bailly, Denis; Mongruel, Remi.
One of the current major scientific challenges to sustain social-ecological systems is to improve our understanding of the spatial and temporal dynamics of the relationships between biodiversity, ecosystem functioning and ecosystem services. Here, we analyse the bundles of ecosystem services supplied by three coastal ecosystems (coastal lagoons, coral reefs and sandy beaches) along a gradient of eutrophication. Based on a state-and-transition model, we analyses the dynamic responses of ecological communities to environmental change and management actions. Although few exceptions are highlighted, increasing eutrophication in the three ecosystem types leads to a degradation of the ecosystem service bundles, particularly for nutrient and pathogen...
Tipo: Text
Palavras-chave: Sandy beaches; Coral reefs; Coastal lagoons; Ecosystem service bundles; Temporal dynamics; Management.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00488/59930/63322.pdf

Changes in the intertidal community structure after a mass mortality event in sandy beaches of Argentina
Provedor de dados: Naturalis Digital Academic Repository
Autores: Dadon, J.R.
After a massive mortality of the dominant species (the clam Mesodesma mactroides) occurred in 1995, changes in the intertidal community in sandy beaches of Argentina were monitored. Eight sampling stations were established in a 40 km open stretch and samples were taken every October each year up to 2001. Biomass, density, size frequency distribution and mean growth rates for the most abundant species were analyzed. During the mortality event, only the benthic stages of M. mactroides were affected, their total mean biomass diminishing from 1,399 g to 2 g per running meter beach. Post-mortality recruitment was normal and the growth rates for the youngest cohorts were similar to those previously reported. After a two years’ lag, the wedge clam Donax...
Tipo: Article / Letter to the editor
Palavras-chave: Surf clams; Mesodesma mactroides; Donax hanleyanus; Sandy beaches; Benthos; Argentina; Species interactions; 42.73.
Ano: 2005
URL: http://www.repository.naturalis.nl/record/214338

Modification paysagères et mecanisation des côtes sableuses de la région d'alicante (S-E de l'Espagne)
Provedor de dados: Ocean Docs: e-repository of  publications
Autores: El Gtari, M.; Bouriga, N.; Medini-Bouaziz, L.; Hamaied, S.; Charfi-Cheikhrouha, F.
Dans le but de mettre en évidence l’impact des modifications paysagères et la mécanisation des plages sur la faune carcinologique semi-terrestre, une campagne de terrain a été effectuée en février 2004 au niveau de deux sites de la province d’Alicante (Sud-Est de l’Espagne). La plage de Santa Pola, partiellement épargnée de l’accès des machines de nettoyage et celle d’El Pinet où la mécanisation est très intense. Les résultats obtenus ont montré que, malgré une faible densité des arthropodes récoltés, la biodiversité de la plage de Santa Pola est plus élevée que celle de la plage d’EL Pinet caractérisée par la quasi absence des amphipodes semi-terrestres. Seule l’espèce Tylos europaeus est commune dans les 2 sites. Ce résultat s’expliquerait par l’impact...
Tipo: Journal Contribution
Palavras-chave: Biodiversity; Sandy beaches; Crustaceans; Landscape; Amphipoda.
Ano: 2012
URL: http://hdl.handle.net/1834/5314

Distribución espacial de los macroinvertebrados de playas arenosas de  Cuba oriental
Provedor de dados: Ocean Docs: e-repository of  publications
Autores: Ocaña, F.A.; Apín, Y.; Cala, Y.; Vega, A.; Fernández, A.; Córdova, E.
El objetivo del presente trabajo es realizar un inventario de los macroinvertebrados bentónicos y describir su estructura  espacial en 15 playas de la costa oriental de Cuba. Se registró un total de 30 especies de las cuales ocho son poliquetos, ocho  moluscos, 13 crustáceos y un cefalocordado. Las  especies con mayor abundancia relativa fueron  Donax striatus, D.  denticulatus,  Parhyalella nisbetae, Thalorchestia fritzi, Eurydice convexa, Emerita talpoida  y Ocypode quadrata. En la zona  supralitoral se encontraron solo cuatro  especies. De ellas tres aparecen también  en la zona intermareal. En la zona  intermareal se presenta la mayor riqueza de especies (21); mientras en la zona sublitoral se encontraron 13 especies. Las  playas protegidas con...
Tipo: Journal Contribution
Palavras-chave: Marine invertebrates; Sandy beaches; Zonation (ecological).
Ano: 2012
URL: http://hdl.handle.net/1834/4546

Sandy beach macroinfauna from the coast of Ancud, Isla de Chiloé, southern Chile
Provedor de dados: Revista Chilena de Historia Natural
Autores: JARAMILLO,EDUARDO; DUARTE,CRISTIAN; CONTRERAS,HERALDO.
Six sandy beaches were sampled on the coast of Ancud, Isla de Chiloé, southern Chile (ca. 42º S) with the following purposes: 1) to study community structure and across shore zonation of the intertidal macroinfauna in relation to different beach types, and 2) to analyze how similar or different is the taxonomic composition and community structure of the macroinfaunal assemblages, compared to those inhabiting sandy beaches located further north of Canal de Chacao, the limit between Isla de Chiloé and the mainland coast. Sediment samples (0.1 m², 30 cm deep) were collected (April-May 1998) with plastic cylinders at fifteen equally spaced levels along three replicated transects (separated by 1 m) extending from above the drift line to the swash zone. The...
Tipo: Journal article
Palavras-chave: Sandy beaches; Macroinfauna; Isla de Chiloé.
Ano: 2000
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2000000400019

The effect of physical and chemical parameters on the macroinfaunal community structure of San Vicente bay, Chile
Provedor de dados: Revista Chilena de Historia Natural
Autores: SIEMENS,ROCÍO A.; MUDGE,STEPHEN M.; CANCINO,JUAN M.
San Vicente bay is a heavily industrialised bay located in central Chile, which has a sand beach extending from an area of recreational use in the south to an area of industrial use and discharge in the north. A survey of the macrofauna in the intertidal zone revealed a non-homogeneous distribution; a maximum of five invertebrate species were found with all five only occurring in one of six transects down the beach. The density ranged from 0 to 188 individuals m-2, with the highest density at the recreational end. The most common species, Emerita analoga (Stimpson), was chosen to study the macrofaunal response to beach morphodynamics, physicochemical parameters and metal concentrations. The E. analoga distribution was not significantly correlated with the...
Tipo: Journal article
Palavras-chave: Intertidal macrofauna; Central Chile; Sandy beaches; Beach morphodynamics; Interstitial water; Heavy metals.
Ano: 2001
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2001000200017

Locomotor activity of Phalerisida maculata Kulzer (Coleoptera, Tenebrionidae) on Chilean sandy beaches
Provedor de dados: Revista Chilena de Historia Natural
Autores: JARAMILLO,EDUARDO; AVELLANAL,MARIA H; GONZALEZ,MARCIA; KENNEDY,FERGUS.
The locomotor activity of the beetle Phalerisida maculata Kulzer (Coleoptera Tenebrionidae) was studied on the surface of the substrate in two sandy beaches of the Chilean coast: one in north central (ca. 29ºS) and the other in south central Chile (ca.39ºS). During the summer period of 1991 the circadian locomotor activity was studied in the southern beach, while during that of 1997 in both beaches. To analyze the activity, pitfall traps were used which were ordered along two transects extended between the upper beach and the resurgence zone. The traps were checked (i.e. collection of captured insects) every two hours for a total period of 26 hours. The results showed that the adults of P. maculata were mostly active during the night hours, whereas the...
Tipo: Journal article
Palavras-chave: Sandy beaches; Insecta; Coleoptera; Locomotor activity.
Ano: 2000
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2000000100008

Malacofauna da região entremarés de praias da ilha de São Sebastião (São paulo, Brasil)
Provedor de dados: Zoologia
Autores: Salvador,Lara Bellintani; Domaneschi,Osmar; Amaral,Antonia Cecília Zacagnini; Morgado,Eloisa Helena; Henriques,Silvaria Aparecida.
This paper reports a concise characterization, based on shell morphology, of 52 species collected dunng one year at intertidal regions of Barra Velha, Perequê and Engenho D'água beaches. Substrate information, species occurrence and geographic distribution are also provided.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mollusca; Sandy beaches; Intertidal; São Paulo; Brazil.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751998000400020

Imposex in Olivancillaria vesica vesica (Gmelin) (Gastropoda, Olividae) from a Southeastern Brazilian sandy beach
Provedor de dados: Zoologia
Autores: Caetano,Carlos Henrique Soares; Absalão,Ricardo Silva.
Imposex, the development of male sex organs on the female, is registered and described for Olivancillaria vesica vesica (Gmelin, 1791) at Restinga da Marambaia beach, Rio de Janeiro state, Brazil.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gastropoda; Olividae; Olivancillaria vesica vesica; Imposex; Sandy beaches; Rio de Janeiro; Brazil.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000600022

A extração de corrupto, Callichirus major (Say) (Crustacea, Thalassinidea), para uso como isca em praias do litoral do Paraná: as populações exploradas
Provedor de dados: Zoologia
Autores: Souza,José R. B.; Borzone,Carlos A.
A recreational fishery that use ghost-shrimp as bait was evaluated along 11 km of a sandy beach of Paraná State. The beach was divided in five sectors and samples were obtained along a transect extended on the middle of each sector, after and before months of major extractive activity. The highest densities were found in beaches with well select very fine sands and gentle slope. The density decreased only at the sector that presented greater extractive activity. In this sector, the smallest mean modal size was detected too. The total standing stock of the whole area was 2,486,250 individuals before summer's months, with a mean density of de 4.48 ind.m-2. Annual fishing effort represented nearly 10 % of total standing stock.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bayt; Crustacea; Recreational fishery; Sandy beaches; Thalassinidea.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752003000400011

Population structure of Callichirus major (Say 1818) (Crustacea: Callianassidae) and conservation considerations at Southeast coast of São Paulo, Brazil
Provedor de dados: Anais da Academia Brasileira de Ciências
Autores: Moschetto,Fernanda Augusto; Borges,Roberto Pereira; Duarte,Luis Felipe de Almeida.
Abstract  Globally, there is limited knowledge about management and conservation of Callianassidae family. Their catches seem to be recently increasing in several parts of the world and evidences raise concern on the need of specialized literature focused on populations monitoring. At Southeast of Brazil, the species Callichirus major (Say 1818), known as the ghost shrimp, is frequently captured for use as bait in sport fishing and, according to previous studies, the overexploitation could threaten the population. The aim of this study was evaluated over a year this harmful human pressure on the species C. major in two beaches contiguous but susceptible to different anthropogenic impacts due to the existence of legislation on one beach that prohibits the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Callianassidae; Ghost shrimp; Conservation; Overexploitation; Sandy beaches; Crustacean.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100701

Taxonomy, morphology and distribution of Cymatosiraceae (Bacillariophyceae) in the littorals of Santa Catarina and Rio Grande do Sul
Provedor de dados: Biota Neotropica
Autores: Garcia,Marinês.
Species of Cymatosiraceae (diatoms) studied from Santa Catarina and Rio Grande do Sul littorals: Campylosira cymbelliformis, Cymatosira belgica, Cymatosirella minutissima, Plagiogrammopsis minima and Plagiogrammopsis vanheurckii) are presented with a morphological description, dimension data, distribution in the studied area and are illustrated in light microscope, and scanning and transmission electron microscopes. Superficial sand samples from the swash zone and plankton were collected from over 30 marine sandy beaches. Cymatosirella minutissima and Plagiogrammopsis minima are new recordings in Brazil widening their distribution to South America, previously being restricted to Europe. Campylosira cymbelliformis was the species most often observed in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biodiversity; Psammic diatoms; Sandy beaches; South Atlantic Ocean.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032016000200208

Composition and assemblage structure of demersal fish from São Cristóvão beach, Areia Branca, RN
Provedor de dados: Biota Neotropica
Autores: Dantas,Natália Carla Fernandes de Medeiros; Feitosa,Caroline Vieira; Araújo,Maria Elisabeth de.
Fish assemblages are an important element of sandy beaches, as they are fundamental for these ecosystems' balance of energy. Descriptions of the structure of fish assemblages in the sandy beaches of northeastern Brazil are scarce; this is especially true for the state of Rio Grande do Norte, which northern coast is poorly studied. This study aimed to identify the fish fauna of São Cristóvão Beach and to determine their assemblage structure. Three trawlings, considered as replicates, were undertaken monthly, in the same day, during 10 minutes each time, parallel to the coastal line, and in the direction of current, from February 2010 to January 2011. To describe the general pattern of the fish assemblage, the abundance, frequency and trophic categories of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sandy beaches; Bottow otter trawl; Ichthyofauna.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032012000300012

The birds at Ilha Comprida beach (São Paulo State, Brazil): a multivariate approach
Provedor de dados: Biota Neotropica
Autores: Barbieri,Edison; Paes,Eduardo Tavares.
Birds were censused weekly from January 1999 to January 2001 along Ilha Comprida beach, a barrier island off São Paulo, southeastern Brazil. To evaluate the similarity in the bird's species composition among the weekly surveys, species counts data were arranged on a data matrix with 144 weekly surveys, analyzed following a multivariate analysis protocol. We counted a total of 205,399 individuals and 52 species. Migratory birds were an important component of the avifauna (maximum N = 21,294 individuals and 14 species). The largest numbers of birds were observed during summer, when Nearctic migrants arrive. All 14 of the most common species were migrants, including Calidris alba, Sterna maxima, Charadrius semipalmatus, Sterna hirundo, Thalasseus maximus,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Seabirds; Ecology; Ilha Comprida; Migration; Shorebirds; Sandy beaches; Multivariate analysis.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032008000300003

Macroinfauna of Six Beaches near Guaratuba Bay, Southern Brazil
Provedor de dados: Brazilian Archives of Biology and Technology
Autores: 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