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	Provedor de dados OceanDocs (2) Autor Bartholomae, Ch. (2) Hagen, E. (1) Van der Plas, A. (1) Palavra-chave Upwelling (2) Anomalies (1) Biomass (1) Catchability (1) Chlorophylls (1) Coastal upwelling (1) Commercial fisheries (1) Continental shelf (1) Currents (water) (1) Dissolved oxygen (1) Ecosystems (1) El Nino phenomena (1) Environmental impact (1) Fish species (1) Fish stocks (1) Fisheries management (1) Fronts (1) Marine resources (1) Nearshore environment (1) Oceanographic data (1) Mais... Tipo do documento Journal Contribution (2) Ano 2007 (2) País Belgium (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Towards the development of environmental indices for the Namibian shelf, with particular reference to fisheries management. OceanDocs Bartholomae, Ch.; Van der Plas, A.. The Namibian Ministry of Fisheries and Marine Resources has the task of collecting and providing relevant oceanographic information for management of their fisheries. However, quality information is difficult to provide because of the complexity of the processes involved in the Namibian marine ecosystem. Nonetheless, there are oceanographic data available that can contribute to fisheries management by improving the general understanding of important oceanographic processes related to fisheries. The focus of this paper is on the development of simple environmental indices that can serve as a measurement or proxy of the state or intensity of certain important oceanographic processes or variables for temporal comparison. These indices relate to oceanographic... Tipo: Journal Contribution Palavras-chave: Fisheries management; Marine resources; Oceanographic data; Chlorophylls; Upwelling; Spatial variations; Sardine fisheries; Water temperature; El Nino phenomena; Ecosystems; Fish stocks; Surface temperature; Oxygen; Phytoplankton; Biomass; Seasonal variations; Fronts; Perturbations; Commercial fisheries; Catchability; Remote sensing; Chlorophylls; Dissolved oxygen; Environmental impact. Ano: 2007 URL: http://hdl.handle.net/1834/4971 Short-term variability in alongshore winds and temperature off Swakopmund, Namibia, during a non-upwelling event in 1998-1999. OceanDocs Bartholomae, Ch.; Hagen, E.. Swakopmund is a popular coastal resort in Namibia, especially during the summer holiday season when daily sea temperatures can fluctuate several degrees in a short period. Hourly measurements of the nearbottom water temperature were collected off the Swakopmund Jetty to investigate the thermal variability in relation to local winds. The thermal regime of this coastal region appears to be controlled by the locally forced Ekman offshore transport. Related changes in offshore transport led those of the surf-zone temperature by about one day. A transfer of kinetic energy from the alongshore wind into the temperature field of the nearshore zone dominated relative short time scales (hourly). The longer periods (7–9 days) are associated with the forcing of... Tipo: Journal Contribution Palavras-chave: Variability; Winds; Temperature; Upwelling; Fish species; Shelf geology; Currents (water); Anomalies; Surf; Continental shelf; Coastal upwelling; Nearshore environment. Ano: 2007 URL: http://hdl.handle.net/1834/4936 Registros recuperados: 2 Primeira ... 1 ... Última

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