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Nutrition Structure and Oligotrophy Analysis of Seawater in Liusha Bay (China)
2012 2nd International Conference on Remote Sensing, Environment and Transportation Engineering, 2012The concentrations and distribution characteristics of nutrients in seawater at Liusha Bay of China were obtained based on the field observations in February (winter), May (spring), August (summer) and November (autumn), 2008. The results showed that the content of nutrients in seawater was rather low and the water body was oligotrolic in Liusha Bay ...
Jibiao Zhang +5 more
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Equilibrium Models for Seasonal Dynamics of Plankton Biomass in Four Oligotrophy Lakes
Canadian Journal of Fisheries and Aquatic Sciences, 1987Plankton biomass dynamics were monitored over an 11-yr period in four coastal British Columbia lakes while they were disturbed by salmonid introductions, fertilization, and zooplankton harvesting. Except for dramatic zooplankton responses to fertilization, the lakes had relatively simple and stable seasonal biomass patterns, with midsummer zooplankton
Carl J. Walters +3 more
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Isolation and characterization of light-driven methylotrophs featuring oligotrophy
Bioscience, Biotechnology, and BiochemistryAbstract Methylotrophs live symbiotically with plants in the phyllosphere. Because the leaf surface is a harsh environment with light, temperature, and low trophic levels, microorganisms on the leaves may have oligotrophic metabolism or use light energy to compensate for the low-carbon conditions for their growth.
Miyu Morishita +3 more
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Journal of Experimental Marine Biology and Ecology, 1980
Abstract Natural phytoplankton assemblages from the Scripps Pier were grown in two chemostats under conditions that simulated two rates of upwelling followed by oligotrophic conditions. At a moderate upwelling rate ( D = 0.3·day −1 ) centric diatoms were selected, while at a low rate ( D = 0.1·day −1 ) a mixture of species dominated. Pumping of low-
William H. Thomas +2 more
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Abstract Natural phytoplankton assemblages from the Scripps Pier were grown in two chemostats under conditions that simulated two rates of upwelling followed by oligotrophic conditions. At a moderate upwelling rate ( D = 0.3·day −1 ) centric diatoms were selected, while at a low rate ( D = 0.1·day −1 ) a mixture of species dominated. Pumping of low-
William H. Thomas +2 more
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Current Genetics
The wide ecological distribution of actinobacteria suggests that they have developed efficient mechanisms to adapt to extremely nutritionally deficient (oligotrophic) conditions. The impact of nutrient limitation typically observed in oligotrophic areas on bacteria remains to be assessed for many species.
Andrea L, Gallegos +8 more
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The wide ecological distribution of actinobacteria suggests that they have developed efficient mechanisms to adapt to extremely nutritionally deficient (oligotrophic) conditions. The impact of nutrient limitation typically observed in oligotrophic areas on bacteria remains to be assessed for many species.
Andrea L, Gallegos +8 more
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Environmental Science & Technology, 2000
A biogeochemical model has been previously developed that explains the inverse and nonlinear relationship between Po-210 concentration in zooplankton and their biomass, under oligotrophic conditions in French Polynesia. In this study the model structure was reviewed to determine a set of biogeochemical behaviors of Po-210, proposed to be critical to ...
Ross A. Jeffree, Ron Szymczak
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A biogeochemical model has been previously developed that explains the inverse and nonlinear relationship between Po-210 concentration in zooplankton and their biomass, under oligotrophic conditions in French Polynesia. In this study the model structure was reviewed to determine a set of biogeochemical behaviors of Po-210, proposed to be critical to ...
Ross A. Jeffree, Ron Szymczak
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Marine Pollution Bulletin, 2017
The study aimed at investigating factors influencing the recovery of the canopy seaweed Cystoseira brachycarpa. A manipulative experiment was done to test if in barren patches the recovery of Cystoseira I) is enhanced by the removal of the urchins, II) is prevented by eutrophication, III) depends on the time of patch clearance and IV) decreases with ...
Piazzi, Luigi, Ceccherelli, Giulia
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The study aimed at investigating factors influencing the recovery of the canopy seaweed Cystoseira brachycarpa. A manipulative experiment was done to test if in barren patches the recovery of Cystoseira I) is enhanced by the removal of the urchins, II) is prevented by eutrophication, III) depends on the time of patch clearance and IV) decreases with ...
Piazzi, Luigi, Ceccherelli, Giulia
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Seasonal or Aperiodic Cessation of Oligotrophy in the Tropical Pacific Ocean
1988Large regions of the tropical Pacific Ocean are probably in a permanent oligotrophic state. A monitoring of the sea surface chlorophyll concentration (SSCC) in cooperation with the crews of merchant ships shows however that the phytoplankton biomass increases in some of these regions during brief periods.
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Chapter 8 The Physiological Ecology of Nuisance Algae in an Oligotrophy Lake
1986Abstract Periphyton growth in oligotrophic Lake Tahoe appears to be regulated by nutrient Input and provides additional evidence of cultural eutrophication. A stalked diatom community, Gomphoneis herculeana , dominates the biomass in the eulittoral (splash) zone, and it is the luxuriant growth of this alga which has caused algal biofouling problems ...
John E. Reuter +2 more
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Fossil indicators of nutrient levels. 2: Evolution and extinction in relation to oligotrophy
Geological Society Special Publication, 1995Abstract An overview of hypotheses on the impact of nutrients on biosphere history reveals the need for quantitative fossil indices for oligotrophy. Emphasis is given to indicators for endosymbiosis in relation to oligotrophic regimes, and a middle Eocene case history is selected for closer examination.
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