|
|
|
| Registros recuperados: 79 | |
|
| |
|
| |
|
|
| Lima, Silvio Felipe Barbosa; Lucena, Rudá Amorim; Queiroz, Vinicius; Guimarães, Carmen Regina Parisotto; Breves, André. |
| This paper describes the epibiosis of Ostrea cf. puelchana on Callinectes exasperatus (Gerstaecker, 1856), both collected from the estuary of the Paraíba River, in the state of Paraíba, northeastern Brazil. The basibiont crab was captured using a trap installed in mangrove area at a depth of about 2 meters. The oyster was closely attached to the left side of dorsal carapace covering most of the epibranchial, mesobranchial and metabranchial regions. Possible advantages and disadvantages for both the epibiont and the basibiont are discussed. We believe that young O. cf. puelchana may avoid a variety of potential predators due to the considerable movement capacity of C. exasperatus and may also serve as a small protective shield for the basibiont. However,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Taxonomia dos grupos recentes; Associação entre invertebrados marinhos Brachyura; Mangrove; Marine invertebrates; Mollusca; Pteriomorphia; South America. Epibiose (Relação não simbiótica entre dois organismos). |
| Ano: 2017 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/33629 |
| |
|
| |
|
| |
|
|
| Silva,Cesar A.; Madureira,Luiz A.S.. |
| The relative distribution of several compounds identified in four samples of recently deposited sediments of the Itacorubi Mangrove located on the Santa Catarina Island, southern Brazil, was compared with similar data on compounds extracted from fresh leaves of three mangrove species (Avicennia schaueriana, the dominant species in the area, Rhizophora mangle and Laguncularia racemosa) and the Gramineae Spartinna alterniflora. Terpenols, previously identified in mangrove species in northern Brazil, were also found. A. schaueriana mainly contains β-amyrin (90.6 μg g-1 of extractable organic matter); low amounts of friedelin, betulin and germanicol were detected only in the leaf extract of this species. R. mangle also contained a significant amount of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biomarkers; Leaf; Mangrove; Santa Catarina; Sediment. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000300002 |
| |
|
| |
|
|
| Souza-Filho,Pedro W. M.; Paradella,Waldir R.. |
| Synthetic Aperture Radar (SAR) images are being used more extensively than ever before for geoscience applications in the moist tropics. In this investigation, a RADARSAT1-1 C-HH SAR image acquired in 1998 was used for coastal mapping and land-cover assessment in the Bragança area, in the northern Brazil. The airborne GEMS 1000 X-HH radar image acquired in 1972 during the RADAM Project was also used for evaluating coastal changes occurring over the last three decades. The research has confirmed the usefulness of RADARSAT-1 image for geomorphological mapping and land-cover assessment, particularly in macrotidal mangrove coasts. It was possible to map mangroves, salt marshes, chenier sand ridges, dunes, barrier-beach ridges, shallow water morphologies and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Geomorphology; Coastal changes; Remote sensing; Mangrove; Amazon. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652003000300007 |
| |
|
|
| NADIA,TARCILA L.; MACHADO,ISABEL C.. |
| Rhizophora mangle is considered as a self-compatible mangrove, and is pollinated by wind and insects. However, there is no information about fruit production by autogamy and agamospermy and on the foraging behavior of its flower visitors. Hence, the present study analyzed the pollination and reproductive systems of R. mangle in a mangrove community in northern Pernambuco, Brazil. Floral morphology, sequence of anthesis, and behavior of flower visitors were described; the proportion of flowers that resulted in mature propagules was also recorded. Autogamy, agamospermy, and wind pollination tests were performed, and a new anemophily index is proposed. The flowers of R. mangle are hermaphrodite, protandric, and have high P/O rate. Flies were observed on... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anemophily index; Autogamy; Entomophily; Mangrove; Red mangrove. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000100229 |
| |
|
|
| SANT'ANNA,BRUNO S.; BORGES,ROBERTO P.; HATTORI,GUSTAVO Y.; PINHEIRO,MARCELO A. A.. |
| The mangrove crab Ucides cordatus is one of the most exploited crustaceans in Brazil. The present study investigated the breeding season of this species and the period of the “andada” phenomenon, when the crabs are active outside their burrows and perform agonistic behaviors. Furthermore related them to environmental factors, in a mangrove on the coast of Brazil, with inferences about management of this crab. The crabs reproduced from October through February. The “andada” occurred from November through February, with typical characteristics in the first two months, during the full and new moon periods, and was influenced positively by the air and soil temperature, luminosity, and tidal amplitude, and negatively by salinity. Based on the results of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brachyura; Crab; Mangrove; Management; Reproduction. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000301411 |
| |
|
|
| Rocha,Michelle S.P.; Santiago,Idalina M.F.L.; Cortez,Creuza S.; Trindade,Priscila M.; Mourão,José S.. |
| We evaluated the appropriation and use of fishing resources by women residing near the Mamanguape River Estuary (MRE), Paraíba state, Brazil. Were used combinations of qualitative (interviews and direct observations) and quantitative methods (use value and corrected principal use concordance). Thirty women were interviewed and reported the use of 41 species (30 fish, 8 crustaceans, and 3 mollusks), mainly for local consumption and sale. The species with the highest use value were Genidens genidens (0.7), Callinectes exasperatus (0.73) and Anomalocardia brasiliana (0.46). The diversity of resources exploited demonstrates the importance of the mangrove ecosystem to MRE families, and the data gathered can serve as a basis for formulating public policies to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fisher; Fishing resources; Mangrove; Mamanguape River Estuary. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000400032 |
| |
|
|
| PINHEIRO,MARCELO A.A.; SOUZA,MARCELO R.; SANTOS,LUCIANA C.M.; FONTES,ROBERTO F.C.. |
| ABSTRACT Ucides cordatus is a relevant fishery resource of Brazilian mangroves and requires legal normative to sustainable use based on stock assessment and management. This study evaluated some population parameters (structure, density, abundance, fishery potential and stock) of this crab species in Brazil Southeast (São Paulo, State), discussing the use of the results to delineate fishery management strategies. Density was monthly evaluated (September 1998 to August 1999), using five sample quadrats of 2x2 m. Density (ind.m-2) was indirectly estimated by counting the opened (with biogenic activity) and closed galleries, and contrasted with flooding level by tides using the vertical distribution of macroalgae in the base of trees. Density of U. cordatus... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crab; Crustacean; Fishery; Management; Mangrove; Population. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000401381 |
| |
|
| |
|
|
| Godoy,Mario D.P.; Lacerda,Luiz D. de. |
| Mangroves function as a natural coastline protection for erosion and inundation, providing important environmental services. Due to their geographical distribution at the continent-ocean interface, the mangrove habitat may suffer heavy impacts from global climate change, maximized by local human activities occurring in a given coastal region. This review analyzed the literature published over the last 25 years, on the documented response of mangroves to environmental change caused by global climate change, taking into consideration 104 case studies and predictive modeling, worldwide. Most studies appeared after the year 2000, as a response to the 1997 IPCC report. Although many reports showed that the world's mangrove area is decreasing due to direct... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Climate; Mangrove; Limits; Migration. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000200651 |
| |
|
|
| ROHDE,CLÁUDIA; SILVA,DIVA MARIA IZABEL O.; OLIVEIRA,GEÓRGIA F.; MONTEIRO,LIV S.; MONTES,MARTÍN A.; GARCIA,ANA CRISTINA L.. |
| Brazil has a high diversity of flies of the genusDrosophila, and part of this richness is represented by thecardini group. We analyzed the fluctuations in the richness and abundance of this group, in environments that had never previously been studied in the northeastern region of Brazil. Among the 28,204 drosophilids sampled, 1,294 belonged to the cardini group and were represented by D. polymorpha, D. cardini, D. neocardini and D. cardinoides. Occurrences ofD. neocardini and D. cardinoides were registered for the first time in the Caatinga. In this biome,D. cardini stood out as having the highest abundance, andD. polymorpha was not observed. In the coastal Atlantic Forest, D. cardini was not registered, but D. polymorpha was found in all the localities... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ecology; Mangrove; Neotropical region; Pernambuco. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000401711 |
| |
|
|
| MENEZES,NANUZA L. DE. |
| Abstract: The authors of the 19th century had demonstrated the viviparity of the species Rhizophora mangle L. with the formation of propagules in the form of spears devoid a radicle, adapted self-planting in the soil of the mangrove or to leave floating in vertical during the high tide. With low tide the propagules self-planting or remain prostrate on the soil but later become upright later. When the seedlings are unearthed, those who are self-planting are straight from end to end; those that stood erect later show a curvature at the base in the form of J (J-shaped). Authors of the last 30 years have questioned the self-planting and accurately demonstrate how the prostrate propagules rise from the ground. It has been verified that the propagule is stem... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Propagule; Rhizophore; Mangrove; Plant viviparity. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000500617 |
| |
|
|
| SOUZA,BRUNNA T.; ESTRADA,GUSTAVO C.D.; SOARES,MÁRIO L.G.; CALLADO,CÁTIA H.. |
| ABSTRACT The formation of annual growth rings has been confirmed for several mangrove species in the last decade, among which is the Rhizophora mangle. However, the record of annual rings for this species was made in a region with high hydric seasonality, a widely recognized induction factor of annual rings in tropical species. In this sense, the present study aimed to verify the occurrence of annual growth rings in R. mangle in the mangroves of Guaratiba (Rio de Janeiro, Southeastern Brazil), a region with low hydric seasonality. For this purpose, the crossdating technique was applied in ten trees collected with known age (seven years). The growth rings are characterized by alternating layers of low vessel density (earlywood) and high vessel density... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Growth rings; Dendrochronology; Mangrove; Dendroecology; Proxy. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000200517 |
| |
|
|
| Nascimento,Douglas M.; Ferreira,Emmanoela N.; Bezerra,Dandara M.M.S.Q.; Rocha,Pollyana D.; Alves,Rômulo R.N.; Mourão,José S.. |
| The present study was undertaken in two traditional communities that are located on the margins of the estuary and mangrove complex of the Mamanguape River, Paraíba state (PB), Brazil. This work describes the crabs capture techniques tapamento and redinha, and identifies the negative socio-environmental impacts of redinha, using qualitative methods (open and semi-structured interviews, guided tours, direct observation and the administration of questionnaires). Results indicate that currently only two principle techniques are used to capture Ucides cordatus: redinha and tapamento. Tapamento has a low impact in relation to redinha. Redinha was pointed out by interviewees as a system that has social impact (social conflicts, breaking of traditions,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crab catchers; Harvesting techniques; Mangrove; Traditional knowledge. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000400019 |
| |
|
|
| Rocha,Rosana Moreira; Guerra-Castro,Edlin; Lira,Carlos; Pauls,Sheila Marquez; Hernández,Ivan; Pérez,Adriana; Sardi,Adriana; Pérez,Jeannette; Herrera,César; Carbonini,Ana Karinna; Caraballo,Virginia; Salazar,Dioceline; Diaz,Maria Cristina; Cruz-Motta,Juan José. |
| Although ascidians form a conspicuous part of sessile assemblages in the Caribbean, no specialized inventories have been developed in Venezuela, except for a list of 15 species reported from Margarita Island (1984). Here we present the results of a taxonomic workshop held in the Universidad de Oriente, Boca del Rio, Margarita Island during April 20-25 of 2009, sponsored by the NaGISA-Caribbean Sea program. La Restinga National park was surveyed and we found 29 species belonging to 19 genera and 10 families. The most abundant colonial species were Clavelina oblonga, Aplidium accarense, Polyclinum constellatum, Distaplia bermudensis, Symplegma rubra, S. brakenhielmi, Botrylloides nigrum and Ecteinascidia turbinata. Among the solitary ascidians Phallusia... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Urochordata; Taxonomy; South Caribbean; Mangrove; Coastal lagoon; Conservation; Bioinvasion. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032010000100021 |
| |
|
|
| Azevedo,Joaquim Alexandre Moreira; Barros,Alexandre Bomfim; Miranda,Paulo Rogério Barbosa de; Costa,João Gomes da; Nascimento,Velber Xavier. |
| Abstract Mangroves are tropical and subtropical flooded forests that generally develop in estuarine areas over unstable sediments protected from the action of waves in the intertidal zone with an environment characterized by a great diversity of fauna and flora. Thus, the present study aimed to evaluate the levels of heavy metals that are absorbed by mangrove oysters, in estuarine systems in the Alagoas coast by determining the concentrations of Fe, Cu, Mn, Zn, Cd and Cr. Two areas, which consisted of both a collection during the rainy season and the dry season, were selected for sampling of mangrove oysters. In each collection, seven samples were collected, at seven different points, where each sample contained four oysters. In the laboratory the oysters... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Mangrove; Mangrove Oyster; Heavy Metals.. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100415 |
| |
| Registros recuperados: 79 | |
|
|
|
