Geological Survey science capabilities Cyanobacterial harmful algal blooms CyanoHABs are increasingly a global concern because CyanoHABs pose a threat to human and aquatic ecosystem health and cause economic damages.
Graham, Jennifer L. Attribution: Water Resources. Graham, J. Geological Survey science capabilities ver 1. Geological Survey Open-File Report —, 12 p. Year Published: Monitoring indicators of harmful cyanobacteria in Texas Harmful algal blooms can occur when certain types of microscopic algae grow quickly in water, forming visible patches that might harm the health of the environment, plants, or animals. Kiesling, Richard L. Year Published: An annotated key to the identification of commonly occurring and dominant genera of algae observed in the phytoplankton of the United States In early , a retrieval was made for all phytoplankton data contained in the computerized data file of the U.
Greeson, Phillip E. An annotated key to the identification of commonly occurring and dominant genera of algae observed in the phytoplankton of the United States; ; WSP; ; Greeson, Phillip E. Filter Total Items: Date published: December 16, Investigating the effects of historical phosphorus on current river water quality. Date published: November 22, Date published: May 15, Date published: October 18, Virgin Islands.
Date published: March 31, Date published: January 31, Date published: October 24, Building knowledge to protect ecological and human health.
Date published: August 9, Date published: June 16, First-of-its-kind survey shows that algal toxins are found nationwide. Attribution: Kansas Water Science Center. Date published: February 17, Date published: August 12, List Grid.
August 2, Attribution: Oregon Water Science Center. July 26, November 2, October 24, August 28, August 11, August 3, July 25, One notable group is blue-green algae, which consists of prokaryotic cells or bacteria that use photosynthesis, the process of converting light energy into chemical energy. Blue-green algae, or cyanobacteria, have an extremely high photosynthetic rate that is ideal for creating biofuels and bioproducts.
Algae only require a few essentials to grow: water, sunlight, carbon, and nutrients like nitrogen and phosphorus. From salt water to fresh water and everything in between, the diversity of algae means that there are suitable strains that can take advantage of nearly any water resource. Because algae are photosynthetic organisms that draw carbon dioxide from the atmosphere, using them to create biofuel and bioproducts can significantly reduce greenhouse gas emissions.
Bioindustry researchers are studying the benefits of developing algae beds near traditional, high-emissions factories and refineries to offset carbon emissions. Many dinoflagellates have lost their plastids — the site of photosynthesis — through the course of evolution and are phagotropic or live as parasites.
Still other algal species are found distributed amongst Alveolata, Excavata, Rhizaria and Chromista Current Biology, Probably the most important contribution of algae to our environment and well-being is the generation of oxygen through photosynthesis. According to a review article published in the journal Biofuels, petroleum is partially derived from ancient algae deposits.
As a result, researchers are looking into renewable alternatives. Algal biofuels are a promising replacement for fossil fuels. All algae have the ability to produce energy-rich oils and several microalgal species naturally accumulate high levels of oil in their dry mass. Moreover, algae are found in diverse habitats and can reproduce quickly. They also efficiently use carbon dioxide. Green algae, diatoms and cyanobacteria are just some of the microalgal species that are considered good candidates for the production of biofuel Biofuels, Algae, in the form of algal blooms , get a bad rap for creating toxic conditions in oceans and lakes.
The blooms take on the colors of the algae contained within them. Graham states that the main toxin producers in oceans are certain dinoflagellates and diatoms.
In freshwaters, cyanobacteria are the main toxin producers, though some eukaryotic algae also cause problems. Under natural conditions, Graham notes that algae use the toxins to protect themselves from being eaten by small animals and only need a small amount to protect themselves.
The main cause of algal blooms is a phenomenon called nutrient pollution. With nutrient pollution, there is an excess of nitrogen and phosphorus, which can push algae toward unrestrained growth. The phenomenon is caused by a variety of human activities. The fertilizers we use in agriculture and animal manures are rich in nitrogen, while improperly treated wastewater is high in both nitrogen and phosphorus, according to the EPA.
Apparently, bacteria act accordingly. Researchers have found that marine Polaribacter bacteria find their ecological niche by Currently, however, there isn't an effective warning system for Not only do blooms routinely occur in this area, which previously was not thought to be an Researchers used 30 years of data from During harmful algal blooms HABs , species of cyanobacteria release toxic peptides, And researchers Spiders' Web Secrets Unraveled.
Using a novel technique, researchers have been able What Makes Us Human?
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