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	Provedor de dados ArchiMer (2) Autor Berland, B (2) Krupatkina, D (2) Maestrini, S (2) Burlakova, Z (1) Georgieva, L (1) Izmestieva, M (1) Kholodov, V (1) Zaika, V (1) Mais... Palavra-chave Analytical techniques (1) Carbon 14 (1) Community composition (1) Eastern Mediterranean Nitrogen Phosphorus Chlorophylls Biomass Temperature effects Nutrients (mineral) Vertical distribution Limiting factors Phytoplankton (1) Ecosystems (1) MED (1) Methodology (1) Nutrient cycles (1) Phytoplankton (1) Primary production (1) Mais... Tipo do documento Text (2) Ano 1984 (2) País France (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Summer phytoplankton in the Levant Sea, biomass and limiting factors ArchiMer Berland, B; Burlakova, Z; Georgieva, L; Izmestieva, M; Kholodov, V; Krupatkina, D; Maestrini, S; Zaika, V. Phytoplankton biomass has been studied in the Levant Sea (Eastern Mediterranean) during summer 1983 in order to picture its vertical distribution as well as its limitation mechanisms. Biological tests carried out on the natural populations of the Basin show that P is the first biomass-limiting element and that N is the second. The simultaneous input of P and N, however, is not sufficient to induce growth; this suggests that Mn has an essential role in the phytoplanktonic growth in this ultra-oligotrophic water. Discussion deals with the significance of the deep chlorophyll a maximum and with the physiological processes allowing it to last. Tipo: Text Palavras-chave: MED; Eastern Mediterranean Nitrogen Phosphorus Chlorophylls Biomass Temperature effects Nutrients (mineral) Vertical distribution Limiting factors Phytoplankton. Ano: 1984 URL: http://archimer.ifremer.fr/doc/1984/acte-1519.pdf The problems of application of radiocarbon method for estimation of primary production in oligotrophic waters ArchiMer Krupatkina, D; Berland, B; Maestrini, S. The errors in primary production estimation by the radiocarbon method may differ from one trophic region to another. Such supposition is based on unequal phytoplanktonic structural characteristics of these regions. These errors are likely to appear rather significant in oligotrophic waters predominated by nano- and ultranano-plankton (the so-called picoplankton). The organic substance of oligotrophic waters is obviously produced by picoplankton for the most part, the need for clarifying possible errors when estimating primary production by the radiocarbon method, which is the purpose of the present work is urgent. For these topics in oligotrophic waters, measurements were carried out in two ways: (1) according to the generally accepted pattern (Sorokin,... Tipo: Text Palavras-chave: Methodology; Community composition; Nutrient cycles; Phytoplankton; Ecosystems; Carbon 14; Primary production; Analytical techniques. Ano: 1984 URL: http://archimer.ifremer.fr/doc/1984/acte-1522.pdf Registros recuperados: 2 Primeira ... 1 ... Última

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