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Green, red and brown algae all have multicellular macroscopic forms that make up the familiar seaweeds. Green algae , an informal group, contains about 8,000 recognised species. [ 145 ] Many species live most of their lives as single cells or are filamentous, while others form colonies made up from long chains of cells, or are highly ...
Scientists developed the ATS, which consists of shallow, 100-foot raceways of nylon netting where algae colonies can form, and studied its efficacy for three years. They found that algae can readily be used to reduce the nutrient runoff from agricultural fields and increase the quality of water flowing into rivers, streams, and oceans.
DNA barcoding of algae is commonly used for species identification and phylogenetic studies. Algae form a phylogenetically heterogeneous group, meaning that the application of a single universal barcode/ marker for species delimitation is unfeasible, thus different markers/barcodes are applied for this aim in different algal groups.
Green, red and brown algae all have multicellular macroscopic forms that make up the familiar seaweeds. Green algae , an informal group, contains about 8,000 recognised species. [ 49 ] Many species live most of their lives as single cells or are filamentous, while others form colonies made up from long chains of cells, or are highly ...
Marine prokaryotes have been the dominant life form for most of Earth's history, perhaps because water protected them from ionizing radiation [8] The Earth is about 4.54 billion years old. [ 9 ] [ 10 ] [ 11 ] The earliest undisputed evidence of life on Earth dates from at least 3.5 billion years ago, [ 12 ] [ 13 ] during the Eoarchean Era after ...
A very large algae bloom in Lake Erie, North America, which can be seen from space. An algal bloom or algae bloom is a rapid increase or accumulation in the population of algae in fresh water or marine water systems. It is often recognized by the discoloration in the water from the algae's pigments.
[85] [86] However, although many studies have demonstrated nitrogen enrichment of terrestrial components due to guano deposition across various taxonomic groups, [85] [87] [88] [89] only a few have studied its retroaction on marine ecosystems and most of these studies were restricted to temperate regions and high nutrient waters.
Dunaliella salina is a type of halophile unicellular green algae especially found in hypersaline environments, such as salt lakes and salt evaporation ponds. [2] Known for its antioxidant activity because of its ability to create a large amount of carotenoids , it is responsible for most of the primary production in hypersaline environments ...