Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 97
Primeira ... 12345 ... Última
Imagem não selecionada

Imprime registro no formato completo
A molecular method to detect and identify the native species of southwestern Atlantic Crassostrea (Mollusca: Ostreidae) Rev. Bras. Zool.
Ludwig,Sandra; Patella,Raquel; Stoiev,Sérgio; Castilho-Westphal,Gisela; Girotto,Marcus V. F; Ostrensky,Antonio.
Among oysters, species of Crassostrea (Sacco, 1897) are the most attractive to aquaculture. In Brazil, the genus is represented by C. rhizophorae (Guilding, 1828) and C. brasiliana (Lamarck, 1819). Because the maturation and breeding technology is not well developed for these species, aquaculturists need a reliable method to decide the correct time to place spat collectors in the field, and to identify both species, which are morphologically similar. In this study a specific Multiplex PCR protocol was developed, using one pair of universal primers from 18S rDNA as a positive control and a pair of specific primers for each target species. The sensitivity and specificity of the protocol was evaluated. It detected C. rhizophorae DNA in low concentrations, and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Multiplex PCR; Oysters; Plankton; Specific primers.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702011000400002
Imagem não selecionada

Imprime registro no formato completo
A new bathyphotometer for bioluminescence measurements on the Armorican continental shelf (northeastern Atlantic) ArchiMer
Geistdoerfer, P; Vincendeau, Ma.
A new bathyphotometer has been developed by the Oceanographic Laboratory of the French Naval Academy which has performed a series of in situ bioluminescence: measurements since 1994. It is used as an additional probe to a Seabird (R) CTD. It measures planktonic bioluminescence. It is associated with a SeaTech (R) fluorometer. The Armorican shelf has particularly been investigated since July 1994. Results obtained in January and April 1995 off Brittany (France), at the entrance to the Bay of Douarnenez and in the northern Bay of Biscay are presented as examples. A method to separate the bioluminescence background from sharp peaks is presented. The strength of bioluminescence signals was related to seasonal planktonic biomass fluctuations, low in winter,...
Tipo: Text Palavras-chave: Bioluminescence marine; Bathyphotomètre; Atlantique nord-est; Plancton; Marine bioluminescence; Bathyphotometer; Northeastern Atlantic; Plankton.
Ano: 1999 URL: http://archimer.ifremer.fr/doc/00325/43616/43313.pdf
Imagem não selecionada

Imprime registro no formato completo
An annotated checklist of the Arcella (Arcellidae) from littoral zone of Paranoá lake-Brazil, with a pictorial key Biological Sciences
Silva, Mariana Lessa Carneiro da; Rangel, Elisangela Reis; Lansac-Tôha, Fabio Amodêo; Schwind, Leilane Talita Fatoreto; Joko, Ciro Yoshio.
The pictorial key contributes to taxonomic analysis, as it lists the species found in a given environment, and points out the morphological characteristics that differs one specific taxon from the others. Arcellidae Ehrenberg, 1830 is one of the testate amoebae families with highest representativity in terms of richness and abundance, including three genera, that Arcella shows greater dispersion in different types of aquatic biotopes. The zooplankton community in the Paranoá Lake has been extensively studied over the decades. However, there are no studies on testate amoebae in this environment. The study aimed to develop a pictorial key to help in the identification of Arcella in the Paranoá Lake. Samples were taken with plankton net at 13 sites in the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: 2.04.05.00-6 protist; Taxonomy; Biological diversity; Plankton; Arcellidae; Center west Taxonomia dos Grupos Recentes.
Ano: 2016 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/29187
Imagem não selecionada

Imprime registro no formato completo
Analysis of time series of planktonic communities in the Adriatic Sea: Distinguishing between natural and man-induced changes ArchiMer
Solic, M; Krstulovic, N; Marasovic, I; Baranovic, A; Pucherpetkovic, T; Vucetic, T.
Time series (> 20 years) of bacterioplankton, phytoplankton and zooplankton abundances and of phytoplankton production in the Adriatic Sea were analysed. Multivariate methods were used to extract the main patterns of year-to-year changes in abundances (Principal Component Analysis), and to discriminate between years and sites (Multidimensional Scaling). Increasing long-term trends were established for planktonic abundances and phytoplankton production in both coastal and open sea areas, presumably as a result of eutrophication processes. In the open sea, natural factors (water exchange between the Mediterranean and Adriatic Seas, and temperature) were dominant in controlling year-to-year fluctuations of plankton. On the other hand, long-term...
Tipo: Text Palavras-chave: Plankton; Time series; Natural factors; Man-induced factors.
Ano: 1997 URL: http://archimer.ifremer.fr/doc/00093/20386/18053.pdf
Imagem não selecionada

Imprime registro no formato completo
Aspectos ecológicos del plancton en las riberas del humedal Isla Santay, Río Guayas durante los años 2000 y 2002 OceanDocs
Tapia, M.E.; Naranjo, Ch..
El objetivo del presente estudio es conocer la distribución cualitativa y cuantitativa de las especies del fitoplancton, zooplancton e ictioplancton y su relación con las condiciones ambientales durante el período en estudio.
Tipo: Journal Contribution Palavras-chave: Species diversity; Plankton; Phytoplankton; Zooplankton; Ichthyoplankton; Biomass; Abundance; Biological production; Marine ecology; Temporal variations; Plankton; Phytoplankton; Zooplankton; Biomass; Biological production; Species diversity; Marine ecology; Http://aims.fao.org/aos/agrovoc/c_5950; Http://aims.fao.org/aos/agrovoc/c_13344; Http://aims.fao.org/aos/agrovoc/c_15490; Http://aims.fao.org/aos/agrovoc/c_926; Http://aims.fao.org/aos/agrovoc/c_36649; Http://aims.fao.org/aos/agrovoc/c_33954; Http://aims.fao.org/aos/agrovoc/c_4609.
Ano: 2007 URL: http://hdl.handle.net/1834/2371
Imagem não selecionada

Imprime registro no formato completo
Aspectos oceanográficos del plancton y su relación con el frente ecuatorial, durante septiembre del 2011 OceanDocs
Tapia, M.E.; Naranjo, Ch..
El presente trabajo comprende la composición y distribución del plancton en las Islas Galápagos. Para el efecto se establecieron 12 estaciones ubicadas en las secciones 83°- 86°-89° y 92°W, realizadas en septiembre del 2011. Se identificaron 71 especies de fitoplancton en muestras de red (50µ). Las diatomeas fueron dominantes y en menor concentración se observaron los Dinoflagelados, Cocolitofóridos, Silicoflagelados, Cianobacterias y Tintínnidos. En las muestras de red se observaron Chaetoceros eibenii, Rhizosolenia imbricata, Thalassiosira subtilis, Proboscia alata y Planktoniella sol características del Frente Ecuatorial en la sección 86°W y 02° sur. En zooplancton se registraron 17 taxa zooplanctónicas destacándose los grupos de Radiolarios 47.5%,...
Tipo: Journal Contribution Palavras-chave: Composition; Distribution; Plankton; Diatoms; Abundance; Cruises.
Ano: 2012 URL: http://hdl.handle.net/1834/4705
Imagem não selecionada

Imprime registro no formato completo
Biomass changes and trophic amplification of plankton in a warmer ocean ArchiMer
Chust, Guillem; Allen, J. Icarus; Bopp, Laurent; Schrum, Corinna; Holt, Jason; Tsiaras, Kostas; Zavatarelli, Marco; Chifflet, Marina; Cannaby, Heather; Dadou, Isabelle; Daewel, Ute; Wakelin, Sarah L.; Machu, Eric; Pushpadas, Dhanya; Butenschon, Momme; Artioli, Yuri; Petihakis, Georges; Smith, Chris; Garcon, Veronique; Goubanova, Katerina; Le Vu, Briac; Fach, Bettina A.; Salihoglu, Baris; Clementi, Emanuela; Irigoien, Xabier.
Ocean warming can modify the ecophysiology and distribution of marine organisms, and relationships between species, with nonlinear interactions between ecosystem components potentially resulting in trophic amplification. Trophic amplification (or attenuation) describe the propagation of a hydroclimatic signal up the food web, causing magnification (or depression) of biomass values along one or more trophic pathways. We have employed 3-D coupled physical-biogeochemical models to explore ecosystem responses to climate change with a focus on trophic amplification. The response of phytoplankton and zooplankton to global climate-change projections, carried out with the IPSL Earth System Model by the end of the century, is analysed at global and regional basis,...
Tipo: Text Palavras-chave: Ecosystem model; Food web; Plankton; Primary production; Sea warming; Trophic amplification.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00188/29966/28481.pdf
Imagem não selecionada

Imprime registro no formato completo
Black Sea Mnemiopsis Leidyi database and plankton check list: online tools developed within the black sea scene project IBSS Repository
Slipetskyy, D.; Sergeyeva, O.; Gorbunov, V.; Vladymyrov, V.; Tezcan, D.; Myroshnychenko, V.; Gucu, A..
Several specific data and information management tools were developed within the EC Black Sea SCENE project for the Black Sea region. They are: (1) Black Sea Mnemiopsis database, (2) Black Sea Phytoplankton checklist, and (3) Black Sea Zooplankton checklist. The tools work on the Web and have simple user friendly interfaces. They will help to the Black Sea scientists to make their work with biological data more effective and productive. The tools are now being tested by the project participants and populated with the corresponding data and information.
Tipo: Proceedings Paper Palavras-chave: Black Sea; Species checklist; Mnemiopsis leidyi; Plankton; Database.
Ano: 2008 URL: http://repository.ibss.org.ua/dspace/handle/99011/695
Imagem não selecionada

Imprime registro no formato completo
Características oceanográficas y geoquímicas del Golfo de Guayaquil durante noviembre de 1994 OceanDocs
Cuadra, T. de la; Chalén, X.; Pérez, P.; Macías, P.; Ortega, D.; Ormaza, F..
Las masas de agua encontradas a partir de las variables de estado, indican una contribución muy pobre de Agua Subtropical Superficial (ASTS), mientras que las mayores contribuciones fueron de Agua Tropical Superficial (ATS). Parámetros como la temperatura y la salinidad determinaron un calentamiento del océano, tanto a nivel superficial como subsuperficial, lo cual sería una consecuencia de los procesos de redistribución de calor del océano.Esta dinámica ocasionaría anomalías del orden de los 30 metros para el caso de la profundidad de la termoclima y 2°C para el caso de la TSM. En el plancton se registraron valores mayores a 5000 larvas de peces/10 m2. La menor cantidad (260 larvas/10 m2) se registró hacia el norte del Golfo, observándose al mismo tiempo...
Tipo: Journal Contribution Palavras-chave: Oceanographic data; Geochemistry; Salinity data; Plankton; Organic matter; Plankton; Organic matter; Geochemistry; Http://aims.fao.org/aos/agrovoc/c_5950; Http://aims.fao.org/aos/agrovoc/c_5387; Http://aims.fao.org/aos/agrovoc/c_24848.
Ano: 1994 URL: http://hdl.handle.net/1834/3080
Imagem não selecionada

Imprime registro no formato completo
Chemical composition of phytoplankton from the estuaries of Eastern Amazonia Acta Amazonica
Vilhena,Maria do Perpetuo Socorro Progene; Costa,Marcondes Lima da; Berrêdo,José Francisco; Paiva,Rosildo Santos; Almeida,Pryscila Denise.
Phytoplankton is important bioindicator of chemical and biological modifications of natural ecosystems. The objective of this study was to determine the total chemical composition of the phytoplankton of the Pará and Mocajuba estuaries on the eastern coast of the Amazon region in the Brazilian state of Pará. The chemical composition of the surface water, bottom sediments (total sample and bioavailable fraction), and the phytoplankton were determined by inductively coupled plasma optical emission spectrometry. Phytoplankton contained high concentrations of Ca, P, Mn, Fe, Zn, Al, Ba, and Pb. The phytoplankton of the Mocajuba estuary is rich in Fe (2,967-84,750 µg g-1), while those from the Pará is rich in Al (1,216-15,389 µgg-1), probably reflecting...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Sediments; Trace metals; Plankton; Surface water.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672014000400012
Imagem não selecionada

Imprime registro no formato completo
Climate impact on long-term changeability of the black sea bioluminescence field and plankton community characteristics. IBSS Repository
Tokarev, Yu.; Mel'nikov, V.; Burmistrova, N.; Belokopytov, V.; Temnykh, A..
Researches in the bioluminescence field vertical structure, amplitude characteristics and spatial distribution in the Black Sea have been conducted in IBSS, NAS of Ukraine, from up to the present time. Enough evidencies are available to testify dramatic changes in different Black sea ecosystem components including bioluminescence field parameters, which took place last decades. But still there is no direct answer to the question about the reasons for such transformations, as variability of the Black Sea biophysical (bioluminescence) and biological characteristics at the climatic time scales, i.e. at the scale of decade periods are not sufficiently studied now. The most pronounced changes in vertical structure of the bioluminescence field are observed in...
Tipo: Proceedings Paper Palavras-chave: Climate changeability; Cold intermediate layer; Bioluminescence; Plankton.
Ano: 2008 URL: http://repository.ibss.org.ua/dspace/handle/99011/694
Imagem não selecionada

Imprime registro no formato completo
Clio piatkowskii, a mesopelagic pteropod new to science (Gastropoda, Opisthobranchia) Naturalis
Spoel, S. van der; Schalk, P.H.; Bleeker, J..
A pteropod species new to science: Clio piatkowskii is described from benthopelagic samples taken in high Antarctic waters of the Weddell Sea. Comparisons with related species are made and its taxonomic place in the genus Clio is discussed.
Tipo: Article / Letter to the editor Palavras-chave: Gastropoda; Pteropoda; Clio; Taxonomy; Plankton; Antarctica.
Ano: 1992 URL: http://www.repository.naturalis.nl/record/504812
Imagem não selecionada

Imprime registro no formato completo
Composición del plancton en la Puntilla Santa Elena durante agosto 2002 (Ecuador) OceanDocs
Torres, G.; Calderón, G.; Franco, V.; Cedeño, E.; Calderón, T.; Salazar, E..
Esta investigación comprende los estudios del fitoplancton-zooplancton-ictioplancton, realizados en tres sitios de la Península Santa Elena durante agosto 2002, área designada para la proyección de "Arrecife Artificial de las Fuerzas Militares del Ecuador": un avión, barco y tanque de guerra, estructuras artificiales consideradas como basura chatarra (de gran tamaño), que serían recicladas para la bio-exploración artificiales hacia la seguridad de los recursos marinos del Ecuador. En el Estudio Ambiental se describen las consideraciones necesarias de carácter multidisciplinario (EIA-INOCAR, 2002).
Tipo: Journal Contribution Palavras-chave: Biological production; Artificial reefs; Plankton; Zooplankton; Phytoplankton; Ichthyoplankton; Biological production; Plankton; Zooplankton; Phytoplankton; Artificial reefs; Http://aims.fao.org/aos/agrovoc/c_36649; Http://aims.fao.org/aos/agrovoc/c_5950; Http://aims.fao.org/aos/agrovoc/c_15490; Http://aims.fao.org/aos/agrovoc/c_13344; Http://aims.fao.org/aos/agrovoc/c_25395.
Ano: 2004 URL: http://hdl.handle.net/1834/2343
Imagem não selecionada

Imprime registro no formato completo
Composición, distribución y abundancia del plancton en el estuario de San Lorenzo, Esmeraldas - Ecuador OceanDocs
Naranjo, Ch.; Tapia, M.E..
El presente trabajo es una contribución al estudio del plancton estuarino presente en el área comprendida del Canal de San Lorenzo, provincia de Esmeraldas, para lo cual existe poca información sobre este tema.
Tipo: Journal Contribution Palavras-chave: Distribution; Composition; Abundance; Plankton; Phytoplankton; Zooplankton; Ichthyoplankton; Diatoms; Biomass; Distribution; Plankton; Phytoplankton; Zooplankton; Biomass; Diatoms; Http://aims.fao.org/aos/agrovoc/c_35773; Http://aims.fao.org/aos/agrovoc/c_5950; Http://aims.fao.org/aos/agrovoc/c_13344; Http://aims.fao.org/aos/agrovoc/c_15490; Http://aims.fao.org/aos/agrovoc/c_926; Http://aims.fao.org/aos/agrovoc/c_32657.
Ano: 2002 URL: http://hdl.handle.net/1834/2277
Imagem não selecionada

Imprime registro no formato completo
Composición, distribución y abundancia relativa de copépodos pelágicos calanoideos y no calanoideos en aguas ecuatorianas durante el evento La Niña en septiembre de 2001 OceanDocs
Tutasi, P..
El presente trabajo es una contribución para el conocimiento de la oceanografía biológica de la región ecuatorial tropical donde se manifiestan estas importantes perturbaciones climáticas.
Tipo: Journal Contribution Palavras-chave: Community composition; Marine crustaceans; Abundance; Plankton; Zooplankton; Marine ecology; Indicator species; El Nino phenomena; Geographical distribution; Plankton; Zooplankton; Geographical distribution; Marine ecology; Indicator species.
Ano: 2006 URL: http://hdl.handle.net/1834/2329
Imagem não selecionada

Imprime registro no formato completo
Comunidades del plancton en la Caleta Aeolian de la Isla Baltra - Galápagos (Ecuador), durante 2005 OceanDocs
Naranjo, Ch.; Tapia, M.E..
El propósito del trabajo es determinar la composición, abundancia de los grupos dominantes del fitoplancton y zooplancton, establecer las especies de Quetognatos y su relación con la temperatura superficial del mar durante marzo de 2005 correspondiente a la época húmeda.
Tipo: Journal Contribution Palavras-chave: Plankton; Primary production; Biological production; Phytoplankton; Zooplankton; Biomass; Abundance; Community composition; Fish eggs; Surface temperature; Plankton; Primary production; Biological production; Phytoplankton; Zooplankton; Biomass; Http://aims.fao.org/aos/agrovoc/c_5950; Http://aims.fao.org/aos/agrovoc/c_34329; Http://aims.fao.org/aos/agrovoc/c_36649; Http://aims.fao.org/aos/agrovoc/c_13344; Http://aims.fao.org/aos/agrovoc/c_15490; Http://aims.fao.org/aos/agrovoc/c_926.
Ano: 2007 URL: http://hdl.handle.net/1834/2346
Imagem não selecionada

Imprime registro no formato completo
Condiciones del plancton en una estación fija: Puerto El Morro-Playas, Golfo de Guayaquil, 2000-2002 OceanDocs
Bonilla Coello, M.A.; Plúas, F.; Camposano, J..
En este estudio se examina la abundancia estructura poblacional y variación temporal del plancton, especialmente de copépodos en el Golfo de Guayaquil, a través de tres años de estudio, en condición no El Niño.
Tipo: Journal Contribution Palavras-chave: Plankton; Phytoplankton; Abundance; Distribution; Zooplankton; Marine crustaceans; Fixed stations; Population structure; Diatoms; Fish eggs; Fish larvae; Population structure; Plankton; Phytoplankton; Distribution; Zooplankton; Diatoms; Fish larvae; Http://aims.fao.org/aos/agrovoc/c_6115; Http://aims.fao.org/aos/agrovoc/c_5950; Http://aims.fao.org/aos/agrovoc/c_13344; Http://aims.fao.org/aos/agrovoc/c_35773; Http://aims.fao.org/aos/agrovoc/c_15490; Http://aims.fao.org/aos/agrovoc/c_32657; Http://aims.fao.org/aos/agrovoc/c_2924.
Ano: 2002 URL: http://hdl.handle.net/1834/2315
Imagem não selecionada

Imprime registro no formato completo
Contribution a l'etude du microplancton des etangs corses de Diana et Urbino et du secteur marin adjacent. ArchiMer
Paulmier, Gerard.
Investigations carried out in both Corsica lagoons Diana and Urbino during the period from January to August 1985, permitted to define the main characteristics of microplankton cycle. Two phytoplanktonic blooms have been observed, first in winter, second less important in July-August. Any correlation cannot be observed between phytoplanktonic cycle or one its main components, and both environmental variables temperature and salinity. However dissolved oxygen ratio may be subject to large summer variations, drifting towards until ecological desequilibrious.
Tipo: Text Palavras-chave: Algal blooms; Dissolved oxygen; Salinity effects; Temperature effects; Phytoplankton; Plankton.
Ano: 1984 URL: http://archimer.ifremer.fr/doc/1984/publication-1800.pdf
Imagem não selecionada

Imprime registro no formato completo
Copepod distribution and production in a Mid-Atlantic Ridge archipelago Anais da ABC (AABC)
MELO,PEDRO A.M.C.; MELO JÚNIOR,MAURO DE; MACÊDO,SILVIO J. DE; ARAUJO,MOACYR; NEUMANN-LEITÃO,SIGRID.
The Saint Peter and Saint Paul Archipelago (SPSPA) are located close to the Equator in the Atlantic Ocean. The aim of this study was to assess the spatial variations in the copepod community abundance, and the biomass and production patterns of the three most abundant calanoid species in the SPSPA. Plankton samples were collected with a 300 µm mesh size net along four transects (north, east, south and west of the SPSPA), with four stations plotted in each transect. All transects exhibited a tendency toward a decrease in copepod density with increasing distance from the SPSPA, statistically proved in the North. Density varied from 3.33 to 182.18 ind.m−3, and differences were also found between the first perimeter (first circular distance band) and the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Oligotrophic; Plankton; St. Peter and St. Paul archipelago; Tropical; Upwelling.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000401719
Imagem não selecionada

Imprime registro no formato completo
Development of in situ hybridisation using 16S rRNA gene to monitor black-lip pearl oyster, Pinctada margaritifera, larvae in plankton samples ArchiMer
Thomas, Yoann; Belliard, Corinne; Garen, Pierre; Gueguen, Yannick; Montagnani, Caroline.
In French Polynesia, the black-lip pearl oyster Pinctada margaritifera has been farmed to produce pearls since the 1980s, forming the basis of a major industry. The sustainability of this activity relies on spat collection in the lagoons. However, pearl oyster spat can be difficult to identify for the evaluation of stock variations. It is especially hard to distinguish Pinctada spp. larvae at a very early stage of development. In the present study, a whole- mount in situ hybridisation (ISH) technique was developed to allow the discrimination of larvae of closely-related pearl oyster species found in the French Polynesian atolls. Using specific ribosomal 16S-DNA sequence data, we were able to successfully differentiate between Pinctada margaritifera and...
Tipo: Text Palavras-chave: Whole larvae in situ hybridisation; 16S rRNA; Plankton; Species identification; Pearl oyster; Pinctada margaritifera.
Ano: 2011 URL: http://archimer.ifremer.fr/doc/00035/14603/11923.pdf
Registros recuperados: 97
Primeira ... 12345 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional