Variability in responses to nutrients and trace elements, and transmission of stressor effects through an estuarine food web
Article Abstract:
Variability in responses to trace elements and nutrients and transmission of stressor effects have been studied in an estuarine food web. Multiple stressors may increase or may dampen the temporal and spatial variability in aquatic systems, dependent on interactions among stressor and influences of background conditions and sensitive species on stressor effect expression. Experiments were carried out four times spring-autumn, 1996, in 20 1-m3 mesocosms. A range of population-, system-, and individual-level parameters were evaluated to measure responses of various organisms. The experiment was intended to deal with part of the overall objective of the Complexity and Stressors in Estuarine Systems (COASTES) project, focused on understanding how multiple stressors affect estuarine environments and how the effects are modified by complexity of the system.
Publication Name: Limnology and Oceanography
Subject: Earth sciences
ISSN: 0024-3590
Year: 1999
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Nitrogen cycling rates and light effects in tropical Lake Maracaibo, Venezuela
Article Abstract:
Light effects and nitrogen cycling rates in a tropical hypereutrophic lake, Lake Maracaibo in Venezuela, are discussed based on surveys of the lake made over the most recent 40 years. They give information about primary production rates. Information about standing stocks of important foodweb organisms, nutrients, salinity, dissolved oxygen, and other water-quality characteristics. It appears that internal recycling provides a major nutrient supply process.
Publication Name: Limnology and Oceanography
Subject: Earth sciences
ISSN: 0024-3590
Year: 1998
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Influence of depth and mixing regime on sedimentation in a small, fluctuating tropical soda lake
Article Abstract:
Depth and mixing regime and their effects on sedimentation in a small, fluctuating tropical soda lake in Kenya are discussed. The lake desiccated completely in the early 19th century, and depth has fluctuated since from 3 m to 18 m. Sediment resuspension and focusing in the lake occur during infrequent deep circulation events between the average mud deposition boundary depth, about 2 m, and the cheomcline depth, about 4-5 m.
Publication Name: Limnology and Oceanography
Subject: Earth sciences
ISSN: 0024-3590
Year: 1999
User Contributions:
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