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Phytoplankton carbon to chlorophyll a ratio: response to light, temperature and nutrient 13
Finenko, Z. Z.; Hoepffner, N.; Williams, R.; Piontkovski, S. A..
Выполнено обобщение литературных и собственных экспериментальных данных по действию света, темпе-ратуры и биогенных элементов на отношение углерод-хлорофилл а в клетках 36 видов водорослей из 7 так-сономических групп. При одинаковых условиях средние значения С:Хл. отношения для отдельных таксоно-мических групп увеличиваются в следующем порядке: Chlorophyceae < Bacillariophyceae, Prochlorococcus < Prymnesiophyceae < Cyanophyceae < Dinophyceae. При постоянной температуре С:Хл. отношение повышается линейно с увеличением света и уменьшается экспоненциально с ростом температуры при одинаковой интен-сивности света. Комбинированное действие света и температуры на С:Хл. отношение у всех исследованных водорослей описано одним уравнением с 3...
Tipo: Journal Contribution Palavras-chave: Углерод: хлорофилл а отношение; Свет; Температура; Биогенное лимитирование; Фотоадаптация; Микроводоросли; Carbon:chlorophyll a ratio; Light; Temperature; Nutrient-limitation; Photoacclimation; Microalgae Temperature Light Light Temperature http://aims.fao.org/aos/agrovoc/c_4322 http://aims.fao.org/aos/agrovoc/c_7657.
Ano: 2003 URL: http://repository.ibss.org.ua/dspace/handle/99011/38
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Diversity and Variability of the Cорероd Behaviour in Environmental Gradients: an Overview 13
Seregin, S. A.; Piontkovski, S. A..
The overview is based on results of long-term experimental studies оf the authors and literature data, and applies to copepod species from plankton of the Black Sea, the Mediterranean Sea and the Atlantic Ocean. The work has incorporated the analysis of diversity and variability of the locomotory acts under the impact of abiotic factors: light, temperature, salinity, and the turbulent diffusion. Variability of locomotory activity depending on intensity, orientation (for the scalar factors), from a various combination of the environmental factors is shown. One of the mechanisms of a preferred conditions selection and phenomenon of a polymodality of copepod distribution in gradient conditions of environment is analyzed on an example of Acartia clausi...
Tipo: Journal Contribution Palavras-chave: Diversity; Copepod behaviour; Light; Temperature; Salinity; Turbulent diffusion; Pазнообразие; Поведение копепод; Свет; Температура; Соленость; Турбулентная диффузия Light Temperature Salinity Turbulent diffusion Light Temperature Salinity http://aims.fao.org/aos/agrovoc/c_4322 http://aims.fao.org/aos/agrovoc/c_7657 http://aims.fao.org/aos/agrovoc/c_6751.
Ano: 2003 URL: http://repository.ibss.org.ua/dspace/handle/99011/148
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Zooplankton-climate linkages in different geographical regions 13
Piontkovski, S. A.; Hameed, S..
The inter-annual variations of total zooplankton abundance in the Gulf of Maine (1961 ‑ 1991), the North‑East Atlantic (1961 ‑ 1994) and the North Sea (1961 ‑ 1994) were analyzed and related to the Icelandic Low and the Azores High atmospheric pressure systems. In a similar way the variations of zooplankton biomass in the Gulf of Alaska (1956 ‑ 1980) were related to the Aleutian Low pressure system. Cross‑correlation and spectral density functions were calculated for the zooplankton and the pressure indices. Regional and global aspects of the relationship between the intensity of the zooplankton fluctuations and the atmospheric centers of action were analyzed. A discussion on possible mechanisms that may contribute to the dynamic links transferring...
Tipo: Journal Contribution Palavras-chave: Zooplankton; Climate change; Inter-annual variability; Sea level pressure; Зоопланктон; Изменение климата; Межгодовая изменчивость; Давление над уровнем моря Zooplankton Sea level pressure Zooplankton http://aims.fao.org/aos/agrovoc/c_15490.
Ano: 2004 URL: http://repository.ibss.org.ua/dspace/handle/99011/131
Registros recuperados: 3
Primeira ... 1 ... Última
 

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