Phytoplankton blooms and low dissolved oxygen

Due to the presence of high nutrient levels in the San Francisco Bay, physical conditions favoring increased phytoplankton growth can lead to large blooms and ...

Phytoplankton, dissolved oxygen and nutrient patterns along a ...

Transport and fate of phytoplankton blooms and excessive nutrients along salinity and turbidity gradients of a river-estuary continuum could ...

Dissolved oxygen dynamics - Responsible Seafood Advocate

Dense blooms of phytoplankton are associated with low nighttime dissolved oxygen concentration, but phytoplankton are net producers of oxygen.

Phytoplankton (Algae) Blooms - Enviro Wiki

Although phytoplankton photosynthesis produces oxygen, the decomposition of the dead phytoplankton organic matter can deplete dissolved oxygen ...

Phytoplankton Blooms: The Basics - NET

base of the food web can affect the zooplankton, fish, birds and other animals in the food web. Low dissolved oxygen (DO) levels are sometimes found in bloom wa ...

Low flows and downstream decline in phytoplankton contribute to ...

With high levels of nutrients and phytoplankton, eutrophic rivers occasionally suffer low dissolved oxygen (DO) levels below 5 mg L−1 ...

Phytoplankton and its impact on water quality

Photosynthesis begins at dawn, and on a typical day, photosynthesis rate and dissolved oxygen concentration in the water increase from morning ...

Algae, Phytoplankton and Chlorophyll - Fondriest Environmental

However, if sunlight is unavailable or minimal for an extended period of time, aquatic life will consume dissolved oxygen quicker than phytoplankton can restore ...

Nutrient, Phytoplankton, and Dissolved Oxygen Dynamics

• Shifts in phytoplankton dominance & size classes. • Increased harmful algal blooms. • Low dissolved oxygen related to blooms algae bloom. Page ...

Hypoxic Area off Pacific Northwest Coast has Grown Since 1950s

Nutrients from the upwelled water promote phytoplankton growth, which indirectly contributes to hypoxia. When large blooms of phytoplankton die ...

Linkages Between Phytoplankton and Bottom Oxygen in the ...

These results demonstrate that the decay of phytoplankton exerts a significant impact on bottom oxygen and releases ammonium which sustains further bloom.

Factors initiating phytoplankton blooms and resulting effects on ...

Factors initiating phytoplankton blooms and resulting effects on dissolved oxygen in Duwamish River estuary, Seattle, Washington ... The factors that control the ...

Causes, Consequences, and Controls in Aquatic Ecosystems - Nature

When these dense algal blooms eventually die, microbial decomposition severely depletes dissolved oxygen, creating a hypoxic or anoxic 'dead zone' lacking ...

Severn River Commission Environmental Threats - Excess Nutrients

Low summer dissolved oxygen levels threaten life at the bottom of the Severn. Excessive growth of phytoplankton leads to low dissolved oxygen levels in ...

Oxygen Depletion and Other Types of Fish Kills - LSU AgCenter

In low-alkalinity waters, dense algal blooms create wide fluctuations in pH daily. Occasionally, heavy phytoplankton populations cause pH to reach extreme ...

Dissolved Oxygen - AquaPlant: Management of Pond Plants & Algae

Phytoplankton populations, or blooms, can grow rapidly, particularly on sunny days when the water is warm and nutrients are available. Alternatively, they can ...

Coastal phytoplankton blooms expand and intensify in the 21st century

Phytoplankton blooms in coastal oceans can be beneficial to coastal fisheries production and ecosystem function, but can also cause major ...

If algae produce oxygen in a pond, how can having too much algae ...

During the night, the bloom attempts to take more oxygen out of the water than what remains from daytime photosynthesis. When this occurs, ...

Predicting river phytoplankton blooms and community succession ...

River phytoplankton plays a key role in supplying oxygen and organic carbon to the aquatic ecosystem and forms the base of the aquatic food web ...

Causes of Low Dissolved Oxygen and Impact to Fish - Aqua Sierra

The primary cause of oxygen depletion in a water body is from excessive algae and phytoplankton growth driven by high levels of phosphorus and nitrogen.