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| Registros recuperados: 51 | |
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| Schleyer, M.; Obura, D.; Motta, H.; Rodrigues, M.J.. |
| The 1997-1998 El Niño southern oscillation caused elevated sea temperatures that resulted in global coral bleaching. Coral reefs constitute an important biological resource in terms of their complex biodiversity and are the basis for tropical fisheries and marine ecotourism. They represent one of Mozambique’s main coastal assets, and coastal communities and the growing tourism industry rely mainly on reef-based resources. Today, about 6.6 million people live within Mozambique’s 48 coastal administrative districts. This represents 42% of the current population (15.7 million), which is expected to grow at 3% p.a. (INE, 1998). In 1994, the population density in coastal districts was 28 persons/km2. In 1996, much higher densities were recorded in the coastal... |
| Tipo: Report |
Palavras-chave: Coral reefs; El Nino phenomena. |
| Ano: 1999 |
URL: http://hdl.handle.net/1834/489 |
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| Schleyer, M.; Obura, D.; Rodrigues, M.J.. |
| The 1997-1998 El Nino southern oscillation (ENSO) caused elevated sea temperatures that resulted in global coral bleaching. Coral reefs constitute an important biological resource in terms of their complex biodiversity and are the basis for tropical reef fisheries and marine ecotourism. They represent one of Mozambique's main coastal assets and its coastal communities and growing tourism industry rely mainly on reef-based resources. Mozambican artisanal fisheries are largely centred on reefs and are responsible for about 70% of the total catch, highlighting their importance. Most tourism similarly occurs along the coast where the best infrastructure is established, especially near the coral reefs of Pemba, Mozambique Island, the Bazaruto Archipelago,... |
| Tipo: Report |
Palavras-chave: Coral reefs; El Nino phenomena; Tourism. |
| Ano: 1999 |
URL: http://hdl.handle.net/1834/888 |
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| Perugachi Salamea, C.. |
| The ocean reanalysis Simple Ocean Data Assimilation (SODA) 2.2.4 is used to explore the changes in upwelling from normal conditions to either El Niño or La Niña conditions. Physical and thermodynamic variables from the reanalysis are used to explore the structure and behaviour of El Niño Southern Oscillation (ENSO) events. The results of this analysis show that sea surface temperature (SST), entrainment velocity, wind stress, mixed layer depth, wind stress curl, and heat content anomalies are in general agreement with ENSO theory. Interestingly, the distribution of upwelling based on the entrainment velocity is very patchy, which led us to explore zonal and meridional sections of vertical velocity. We used three methods to compute changes in upwelling... |
| Tipo: Journal Contribution |
Palavras-chave: Upwelling; El Nino phenomena; Surface temperature; Thermodynamics. |
| Ano: 2013 |
URL: http://hdl.handle.net/1834/5754 |
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| Perugachi Salamea, C.. |
| The ocean reanalysis Simple Ocean Data Assimilation (SODA) 2.2.4 is used to explore the changes in upwelling from normal conditions to either El Niño or La Niña conditions. Physical and termodynamics variables from the reanalysis are used to explore the structure and behaviour of El Niño Southern Oscillaion (ENSO) events. The results of this analysis show that sea surface temperature (SST), entrainment velocity, wind stress, mixed layer depth, wind stress curl, and heat content anomalies are in general agreement with ENSO theory. Interestingly, the distribution of upwelling based on the entrainment velocity is very patchy, which led us to explore zonal and meridional sections of vertical velocity. We used three methods to compute changes in upwelling... |
| Tipo: Journal Contribution |
Palavras-chave: Upwelling; El Nino phenomena; Surface temperature; Thermodynamics. |
| Ano: 2013 |
URL: http://hdl.handle.net/1834/5761 |
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| Carrillo, P.. |
| El objective of this article was to show the impact of a cold phenomenon such as "La Niña" during a multi-year period. The study was conducted by measuring the chemical characteristics of masses of water and comparing them to the characteristics shown in 2000 where the activity of this phenomenon was the strongest. The masses of water were located based on their characterization with parameters such as temperature, salinity, dissolved oxygen and inorganic micronutrients (phosphates, silicates, nitrites, and nitrates). These parameters were measured in 1994, a year considered as normal activity and in those years where "La Niña" was observed with greater intensity. The masses of water ATS, AES, ACP, AESS were established during the years of analysis. The... |
| Tipo: Journal Contribution |
Palavras-chave: Water masses; El Nino phenomena; Nutrients (mineral); Fixed stations. |
| Ano: 2013 |
URL: http://hdl.handle.net/1834/5750 |
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| Cuadra, T. de la. |
| Aplicando Funciones Ortogonales Empíricas (EOF) se determinó patrones de comportamiento similares entre algunas variables pesqueras del 2004 como: los desembarques de pelágicos pequeños, número de zarpes de los barcos clase I, II, III y IV; y variables oceanográficas como la temperatura superficial del mar (TSM) y anomalías térmicas de la región Nino 1+2. También se calculo los coeficientes de correlación de Pearson (r), nivel de significancia, y porcentaje de correlación explicada de cada una de las relaciones encontradas. Algunas fueron las especies que realmente mostraron patrones comunes con los parámetros oceanográficos. De todas ellas la sardina redonda fue la especie mayormente asociada a la TSM por su patrón común, nivel de significancia, y... |
| Tipo: Journal Contribution |
Palavras-chave: Catch composition; Pelagic fisheries; Temperature anomalies; El Nino phenomena; Landing statistics. |
| Ano: 2010 |
URL: http://hdl.handle.net/1834/4801 |
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| Carrillo, P.. |
| El análisis de parámetros químicos que permitan establecer tendencias de los mismos durante la ocurrencia de eventos climáticos es limitado; como aporte al conocimiento del comportamiento del oxígeno disuelto durante los eventos El Niño. Se comparan un total de 2282 datos de temperatura y concentraciones de oxígeno disuelto en la estación Fija La Libertad desde 1988 hasta el 2010 y 1464 datos de temperatura y concentraciones de oxígeno disuelto en Manta desde 1991 hasta el 2010. Se elaboraron gráficos de distribución en superficie y en la columna de agua, notándose que en las dos estaciones fijas costeras a nivel superficial las concentraciones del oxígeno disuelto son menores al presentarse eventos cálidos, y en especial durante los El Niño extremos como... |
| Tipo: Journal Contribution |
Palavras-chave: Dissolved oxygen; El Nino phenomena; Parameters; Temperature data; Levels; Fixed stations. |
| Ano: 2012 |
URL: http://hdl.handle.net/1834/4655 |
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| Carrillo, P.. |
| This article was intended to contribute to the knowledge of the behavior of Dissolved Oxygen in the water column that appeared in the ecuadorian fixed stations in La Libertad and Manta, average monthly values were obtained and the maximum at different depth monitored and shown to be 75 meters in the years when "El Niño" events appeared, the highest concentrations were found monthly in the two fixed stations, allowing behavioral tendencies contribute to a chemical parameter, to warn the start of warm event. |
| Tipo: Journal Contribution |
Palavras-chave: Dissolved oxygen; El Nino phenomena; Fixed stations. |
| Ano: 2013 |
URL: http://hdl.handle.net/1834/5749 |
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| McClanahan, T.R.; Mangi, S.. |
| The 1998 interaction between the El Niño and the Indian Ocean dipole produced one of the warmest years in recent records (McPhaden, 1999; Saji, 1999; Webster et al., 1999) and is reported to have caused extensive coral bleaching and mortality throughout the western Indian Ocean (Strong et al., 1998; Goreau et al., 1999; Wilkinson et al., 1999). Previous observations of coral bleaching in Kenya were recorded in 1987 and 1994 with the 1987 event causing significant mortality in corals and other benthic invertebrates (McClanahan, unpublished data and observations). The East African coast has a strong seasonal cycle and these bleaching events occurred at the end of the warm north-east monsoon, usually beginning in March, during the local annual peak of solar... |
| Tipo: Preprint |
Palavras-chave: Coral reefs; El Nino phenomena; Algae. |
| Ano: 2001 |
URL: http://hdl.handle.net/1834/482 |
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| Tapia, M.E.; Torres Ch., G.. |
| El principal objetivo fue de conocer la disponibilidad de la reserva alimenticia (fitoplancton), como un factor que puede influenciar la distribución y abundancia del krill antártico, registrados durante la VII Expedición Ecuatoriana a la Antártida en enero/1998 en el B/I ORION (INOCAR). La biomasa fitoplanctónica en el Estrecho Bransfield, registró altas concentraciones hacia el sur oeste del estrecho dominado principalmente por Cryptomonas spp. entre 1000.000 a 2200.000 cel/l, las menores concentraciones se registraron hacia las Islas Shetland del Sur entre 575.000 a 693.000 cel/l. compuestas principalmente por las diatomeas, Nitzschia delicatissima, N. longissima, Thalassiosira spp., y el Dinoflagelado gymnodinium spp., los cuales se presentaron... |
| Tipo: Journal Contribution |
Palavras-chave: Distribution; Availability; Abundance; Diatoms; Phytoplankton; El Nino phenomena; Distribution; Phytoplankton; Diatoms. |
| Ano: 1998 |
URL: http://hdl.handle.net/1834/3852 |
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| Zambrano, E.. |
| En el presente trabajo se explican ciertos conceptos frecuentemente empleados por oceanógrafos y meteorólogos en sus investigaciones relativas a El Niño. Se hace una breve revisión histórica de la evolución del nombre de este evento de interacción océano-atmósfera y se explica el probable mecanismo de formación del mismo, así como los esfuerzos que a nivel nacional e internacional se llevan a cabo, con el propósito de entender y llegar a pronosticar el evento de El Niño. |
| Tipo: Journal Contribution |
Palavras-chave: El Nino phenomena; Historical account; Ocean-atmosphere system. |
| Ano: 1996 |
URL: http://hdl.handle.net/1834/2225 |
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| Moreano, H.R.; Zambrano, E.; Trejos de Suescum, R.; Paredes, N.. |
| "El Niño" 1982-83 respondió a un patrón de formación diferente a aquel que había sido característico para los fenómenos anteriores, a tal punto que sobrevino en forma sorpresiva y como una consecuencia de las fluctuaciones climáticas relacionadas con la oscilación Sur. Su desarrollo se inició en Junio de 1982 y no llegó a la costa ecuatoriana sino hasta Octubre, aunque en agosto ya se sentían sus primeras manifestaciones como la tendencia del Frente Ecuatorial a desplazarse hacia el sur y la profundización de las isotermas y la termoclina. En Noviembre el fenómeno estaba en pleno desarrollo en las aguas nacionales y en enero llegaba a la máxima intensidad, para posteriormente notarse un ascenso paulatino de las isotermas y termoclina, aunque las... |
| Tipo: Journal Contribution |
Palavras-chave: El Nino phenomena; Coastal upwelling; Biota; Isotherms; Biota. |
| Ano: 1986 |
URL: http://hdl.handle.net/1834/2122 |
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| Registros recuperados: 51 | |
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