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| Registros recuperados: 40 | |
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| Andrade,Jenny Patricia; Gómez A,Claudia Marcela; Barbosa B,Helber de J; Castellanos H,Leonardo; Osorno R,Oscar E. |
| La investigación se desarrolló con el fin de implementar una metodología que permitiera la realización de ensayos de interacciones alelopáticas entre corales y esponjas, minimizando la interacción física provocada por el uso de dispositivos que producen roce y efecto abrasivo sobre los pólipos del coral. Se llevó a cabo un estudio de preformulación utilizando polímeros con características mucoadhesivas sobre mucus que recubre los pólipos de coral, con el fin de obtener un gel, incorporando en las formulaciones un extracto de la esponja Cliona delitrix. Se caracterizaron propiedades como extensibilidad y adherencia, así como la capacidad bioadhesiva de las formulaciones propuestas, considerando su comportamiento reológico. Estas mostraron una buena... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Polímeros mucoadhesivos; Mucoadhesión; Preformulación; Gel; Ecología química marina; Alelopatía; Esponja; Coral. |
| Ano: 2010 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-548X2010000100006 |
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| MACHADO,ALTAIR J.; MORAES,SIMONE S.. |
| Sediment samples from two different reef environments were analyzed for their foraminiferal content: the Sioba/Rio do Fogo reefs, located in a broad shallow shelf dominated by strong currents (Rio Grande do Norte State), and the Praia do Forte reefs, located in a narrow shelf under the influence of wind-induced waves (Bahia State). The recorded foraminiferal fauna, from forty-six samples, is represented by 113 species, being the encrusting species Homotrema rubrum present in nine samples from the Sioba/Rio do Fogo reefs and in 11 samples from Praia do Forte reefs. Homotrema fragments recovered from Sioba/Rio do Fogo are mostly polished with rounded edges (51.59%) and some have a whitish color, whereas the specimens from Praia do Forte reefs are... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Homotrema rubrum; Reefs; Coralline algae; Coral. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652002000400012 |
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| Pereira,Natan S.; Sial,Alcídes N.; Kikuchi,Ruy K.P.; Ferreira,Valderez P.; Ullmann,Clemens V.; Frei,Robert; Cunha,Adriana M.C.. |
| ABSTRACT Coral skeletons contain records of past environmental conditions due to their long life span and well calibrated geochemical signatures. C and O isotope records of corals are especially interesting, because they can highlight multidecadal variability of local climate conditions beyond the instrumental record, with high fidelity and sub-annual resolution. Although, in order to get an optimal geochemical signal in coral skeleton, sampling strategies must be followed. Here we report one of the first coral-based isotopic record from the Equatorial South Atlantic from two colonies of Porites astreoides from the Rocas Atoll (offshore Brazil), a new location for climate reconstruction. We present time series of isotopic variation from profiles along the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coral; Climate change; Rocas Atoll; Carbon and oxygen isotopes; South Atlantic Ocean. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000501939 |
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| Santos,H.F.; Carmo,F.L.; Leite,D.C.A.; Jesus,H.E.; De Carvalho Maalouf,P.; Almeida,C.; Soriano,A.U.; Altomari,D.; Suhett,L.; Vólaro,V.; Valoni,E.; Francisco,M.; Vieira,J.; Rocha,R.; Sardinha,B.L.; Mendes,L.B.; João,R.R.; Lacava,B.; Jesus,R.F.; Sebastian,G.V.; Pessoa,A.; van Elsas,J.D.; Rezende,R.P.; Pires,D.O.; Duarte,G.; Castro,C.B.; Rosado,A.S.; Peixoto,R.S.. |
| This study aimed to test different protocols for the extraction of microbial DNA from the coral Mussismilia harttii. Four different commercial kits were tested, three of them based on methods for DNA extraction from soil (FastDNA SPIN Kit for soil, MP Bio, PowerSoil DNA Isolation Kit, MoBio, and ZR Soil Microbe DNA Kit, Zymo Research) and one kit for DNA extraction from plants (UltraClean Plant DNA Isolation Kit, MoBio). Five polyps of the same colony of M. harttii were macerated and aliquots were submitted to DNA extraction by the different kits. After extraction, the DNA was quantified and PCR-DGGE was used to study the molecular fingerprint of Bacteria and Eukarya. Among the four kits tested, the ZR Soil Microbe DNA Kit was the most efficient with... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coral; Microbial diversity; DNA extraction. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000200012 |
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| Galgani, Francois; Pham, Christopher K.; Claro, Francoise; Consoli, Pierpaolo. |
| Entanglement of marine fauna is one of the principal impacts of marine litter, with an incidence that can vary strongly according to regions, the type and the quantity of marine litter. On the seafloor, areas dominated by sessile suspension feeders, such as tropical coral reefs or deep-sea coral and sponge aggregations, have been termed “animal forests” and have a strong potential to monitor the temporal and spatial trends of entanglement by marine litter, especially fishing gears. Several characteristics of these organisms represent advantages while avoiding constraints and bias. Biological constraints and logistical aspects, including tools, are discussed to better define a strategy for supporting long-term evaluation of accumulation and entanglement of... |
| Tipo: Text |
Palavras-chave: Marine animal forests; Marine litter; Coral; Epibenthic communities; Entanglement; Deep sea. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00452/56368/57988.pdf |
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| Arrigoni, Roberto; Benzoni, Francesca; Huang, Danwei; Fukami, Hironobu; Chen, Chaolun Allen; Berumen, Michael L.; Hoogenboom, Mia; Thomson, Damian P.; Hoeksema, Bert W.; Budd, Ann F.; Zayasu, Yuna; Terraneo, Tullia I.; Kitano, Yuko F.; Baird, Andrew H.. |
| The scleractinian family Lobophylliidae is undergoing a major taxonomic revision thanks to the combination of molecular and morphological data. In this study, we investigate the evolutionary relationships and the macro- and micromorphology of six nominal coral species belonging to two of the nine molecular clades of the Lobophylliidae, clades A and B, and of Symphyllia wilsoni, a lobophylliid species analyzed from a molecular point of view for the first time. Sequence data from mitochondrial DNA (COI and the intergenic spacer between COI and l-rRNA), and nuclear DNA (histone H3 and ITS region) are used to generate robust molecular phylogenies and a median-joining haplotype network. Molecular results are strongly in agreement with detailed observations of... |
| Tipo: Text |
Palavras-chave: Coral; Evolution; Phylogeny; Systematics; Taxonomy. |
| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00585/69699/67565.pdf |
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| Joubin, M. L.. |
| L'accroissement considérable du tonnage et de la puissance des navires de pêche employés par les armateurs français leur a permis de manœuvrer les chaluts à des profondeurs de plus en plus grandes qu'ils n'atteignaient jamais, il n’y a pas un bien grand nombre d'années. En opérant dans ces couches profondes ils ont rencontré, à partir de 200 mètres environ, des coraux ramifiés qui sont localisés dans ces eaux plus froides et plus obscures. Ces coraux sont constitués par du calcaire extrêmement dur, à consistance et aspect de porcelaine, à cassure blanche et coupante ; les chaluts déchirent et peuvent même y rester accrochés ; le moindre mal qui leur arrive est de se remplir de branches cassées qui les empêchent de fonctionner. Le chalut de la Tanche en a... |
| Tipo: Text |
Palavras-chave: Chart; North Atlantic; Coral; Fishing net; Obstacle; Fisheries. |
| Ano: 1922 |
URL: http://archimer.ifremer.fr/doc/1922/publication-2394.pdf |
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| Evangelista, H.; Sifeddine, A.; Correge, T.; Servain, J.; Dassie, E. P.; Logato, R.; Cordeiro, R. C.; Shen, C. -c.; Le Cornec, F.; Nogueira, J.; Segal, B.; Castagna, A.; Turcq, B.. |
| Although relatively rare compared to similar latitudes in the Pacific or Indian Oceans, massive coral colonies are present in the Tropical/Equatorial Southwestern Atlantic Ocean. However, detailed geo-chemical compositions of these corals are still largely unknown. In this work, we present growth rates, Sr/Ca, and U/Ca ratios of the coral colony (Siderastrea stellata) sampled at Rocas Atoll, off the Brazilian coast. These variables are primarily affected by sea surface temperature (SST) at seasonal scale, and by wind stress at interannual scale, these results represent a broad new finding. A lower significance at the interannual time scale between Sr/Ca and U/Ca with respect to SST is attributed to the low SST amplitude closed to Equator. An investigation... |
| Tipo: Text |
Palavras-chave: Coral; Siderastrea stellata; Rocas Atoll; ITCZ; Equatorial Atlantic; Wind stress. |
| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00623/73552/73796.pdf |
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| Zoppi de Roa, Evelyn; Pedro Alonso, G.. |
| ZOPPI DE ROA, EVELYN & PEDRO ALONSO G.: Distribution of Mysidium integrum (Tattersall) (Crustacea: Mysidacea) in Venezuelan coral habitats. Studies Nat. Hist. Caribbean Region 73, Amsterdam 1997: 55-62. This paper reports the occurrence, distribution and some ecological aspects of mysids in six coral habitats along the northern coast of Venezuela. Collections of mysid fauna were made during various months in the years 1980-1983, with simultaneous measurement of environmental conditions. Only Mysidium integrum (TATTERSALL 1951) has been found to be present in the protected zones of various coral species, and between the spines of the sea urchin Diadema antillarum (Philippi). Depth of water and type of association appear to be critical factors affecting... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Microhabitat; Sea urchin; Mysidium integrum; Venezuela.; Coral. |
| Ano: 1997 |
URL: http://www.repository.naturalis.nl/record/503185 |
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| Arrigoni, R.; Benzoni Danwei Huang, Hironobu Fukami, Chaolun Allen Chen, Michael L. Berumen, Mia Hoogenboom, Damian P. Thomson, Bert W. Hoeksema, Ann F. Budd, Yuna Zayasu, Tullia I. Terraneo, Yuko F. Kitano, Andrew H. Baird, F.; Huang, D.; Fukami, H.; Chen, C.A.; Berumen, M.L.; Hoogenboom, M.; Thomson, D.P.; Hoeksema,, B.W.; Budd, A.F.; Zayasu, Y.; Terraneo, T.I.; Kitano, Y.F.; Baird, A.H.. |
| The scleractinian family Lobophylliidae is undergoing a major taxonomic revision thanks to the combination of molecular and morphological data. In this study, we investigate the evolutionary relationships and the macro- and micromorphology of six nominal coral species belonging to two of the nine molecular clades of the Lobophylliidae, clades A and B, and of Symphyllia wilsoni, a lobophylliid species analyzed from a molecular point of view for the first time. Sequence data from mitochondrial DNA (COI and the intergenic spacer between COI and l-rRNA), and nuclear DNA (histone H3 and ITS region) are used to generate robust molecular phylogenies and a median-joining haplotype network. Molecular results are strongly in agreement with detailed observations of... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Coral; Evolution; Phylogeny; Systematics; Taxonomy. |
| Ano: 2016 |
URL: http://www.repository.naturalis.nl/record/619236 |
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| Vega-Sequeda, J.; Rodríguez-Ramírez, A.; Reyes-Nivia, M.C.; Navas-Camacho, R.. |
| Se evaluaron 20 formaciones coralinas del área de Santa Marta en términos de: 1) composición y abundancia de los componentes del sustrato y 2) prevalencia de enfermedades coralinas y blanqueamiento. Para obtener la información se utilizaron bandas de 10 x 1 m y 10 x 2 m respectivamente. Se registró un total de 33 especies de corales duros. Las algas y los corales fueron los componentes de mayor cobertura, sin embargo sus promedios variaron ampliamente en el área de estudio (coral= 4.0 ± 0.9 %-62.0 ± 7.2 %; algas = 30.6 ± 11.0 %-78.3 ± 3.0 %). Las especies de coral con coberturas promedio más altas fueron Colpophyllia natans, Diploria strigosa, Acropora palmata y Montastraea cavernosa (7.5 ± 2.7 %, 6.7 ± 2.1 %, 4.0 ± 2.8 % y 3.8 ± 1.0 %, respectivamente).... |
| Tipo: Journal Contribution |
Palavras-chave: Coral. |
| Ano: 2008 |
URL: http://hdl.handle.net/1834/3486 |
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| Werding, B.; Erhardt, H.. |
| Se reporta un encuentro de M. myriaster (MILNE-EDWARDS & HAIME) en la Bahía de Santa Marta, Colombia. Según reportes anteriores, esta especie parece preferir profundidades grandes y no ha sido reportada anteriormente por buzos. Se discute el problema de la profundidad limitada de las formaciones coralina en la región de Santa Marta. Uno de los factores derminantes en este fenómeno parece ser la turbidez del agua, ouc se presenta en varios meses del año. |
| Tipo: Journal Contribution |
Palavras-chave: Coral; New records. |
| Ano: 1977 |
URL: http://hdl.handle.net/1834/3901 |
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| Venera-Pontón, D.E.; Reyes, J.; Díaz-Pulido, G.. |
| Porites colonensis es un coral del mar Caribe cuyas colonias son foliosas, onduladas, en forma de plato y los pólipos de coloración parda o rojiza, con centro blanco o verde fosforescente; sus coralitos presentan pali y su plan septal es bisimétrico, con tres septos fusionados en la zona ventral, un septo dorsal solitario y dos pares de septos laterales a cada lado del eje dorso-ventral. Esta especie es similar a variedades planas de Porites astreoides y Porites branneri, con quienes puede ser confundido. Para Colombia existen tres ejemplares previamente identificados como P. colonensis, colectados en el Golfo de Urabá (ecorregión Darién), Islas del Rosario (ecorregión Archipiélagos Coralinos) y otro sin localidad especificada, además de una observación... |
| Tipo: Journal Contribution |
Palavras-chave: Coral; Taxonomy; Taxonomy; Http://aims.fao.org/aos/agrovoc/c_7631. |
| Ano: 2008 |
URL: http://hdl.handle.net/1834/3498 |
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| Zapata, Fernando A.; Jaramillo González, Juliana; Navas Camacho, Raúl. |
| El blanqueamiento coralino es asociado frecuentemente con temperaturas inusualmente cálidas, pero también puede ocurrir durante episodios de enfriamiento del agua. En esta nota registramos un evento de blanqueamiento coralino, especialmente en Porites lobata, después de las temperaturas del mar más bajas registradas para Malpelo en 21 años. En abril de 2009 observamos blanqueamiento en cuatro de las diez especies coralinas registradas en la isla Malpelo. Este evento fue más frecuente (hasta el 72 % de las colonias) y extenso (hasta el 87 % del área de la colonia) en P. lobata. La temperatura superficial del mar obtenida por satélites alcanzó valores tan inusualmente bajos como 23.1 °C en marzo de 2009 con anomalías térmicas hasta de -4.4 °C. Un sensor de... |
| Tipo: Journal Contribution |
Palavras-chave: Coral; Environmental conditions; Porites lobata. |
| Ano: 2011 |
URL: http://hdl.handle.net/1834/4427 |
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| Registros recuperados: 40 | |
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