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Phycology () is the scientific study of algae. Also known as algology, phycology is a branch of life science. Algae are important as
primary producers An autotroph or primary producer is an organism that produces complex organic compounds (such as carbohydrates, fats, and proteins) using carbon from simple substances such as carbon dioxide,Morris, J. et al. (2019). "Biology: How Life Work ...
in aquatic
ecosystem An ecosystem (or ecological system) consists of all the organisms and the physical environment with which they interact. These biotic and abiotic components are linked together through nutrient cycles and energy flows. Energy enters the syste ...
s. Most algae are
eukaryotic Eukaryotes () are organisms whose Cell (biology), cells have a cell nucleus, nucleus. All animals, plants, fungi, and many unicellular organisms, are Eukaryotes. They belong to the group of organisms Eukaryota or Eukarya, which is one of the ...
, photosynthetic organisms that live in a wet environment. They are distinguished from the higher plants by a lack of true roots, stems or leaves. They do not produce flowers. Many species are single-celled and microscopic (including phytoplankton and other microalgae); many others are multicellular to one degree or another, some of these growing to large size (for example,
seaweeds Seaweed, or macroalgae, refers to thousands of species of macroscopic, multicellular, marine algae. The term includes some types of '' Rhodophyta'' (red), ''Phaeophyta'' (brown) and ''Chlorophyta'' (green) macroalgae. Seaweed species such as ...
such as
kelp Kelps are large brown algae seaweeds that make up the order Laminariales. There are about 30 different genera. Despite its appearance, kelp is not a plant - it is a heterokont, a completely unrelated group of organisms. Kelp grows in "underwa ...
and '' Sargassum''). Phycology includes the study of
prokaryotic A prokaryote () is a single-celled organism that lacks a nucleus and other membrane-bound organelles. The word ''prokaryote'' comes from the Greek πρό (, 'before') and κάρυον (, 'nut' or 'kernel').Campbell, N. "Biology:Concepts & Connec ...
forms known as blue-green algae or cyanobacteria. A number of microscopic algae also occur as symbionts in lichens. Phycologists typically focus on either freshwater or ocean algae, and further within those areas, either diatoms or soft algae.


History of phycology

While both the ancient Greeks and Romans knew of algae, and the ancient Chinese even cultivated certain varieties as food, the scientific study of algae began in the late 18th century with the description and naming of ''Fucus maximus'' (now ''Ecklonia maxima'') in 1757 by Pehr Osbeck. This was followed by the descriptive work of scholars such as
Dawson Turner Dawson Turner (18 October 1775 – 21 June 1858) was an English banker, botanist and antiquary. He specialized in the botany of cryptogams and was the father-in-law of the botanist William Jackson Hooker. Life Turner was the son of Jam ...
and Carl Adolph Agardh, but it was not until later in the 19th century that efforts were made by J.V. Lamouroux and
William Henry Harvey William Henry Harvey, FRS FLS (5 February 1811 – 15 May 1866) was an Irish botanist and phycologist who specialised in algae. Biography Harvey was born at Summerville near Limerick, Ireland, in 1811, the youngest of 11 children. His father ...
to create significant groupings within the algae. Harvey has been called "the father of modern phycology" in part for his division of the algae into four major divisions based upon their pigmentation. It was in the late 19th and early 20th century, that phycology became a recognized field of its own. Men such as Friedrich Traugott Kützing continued the descriptive work. In Japan, beginning in 1889,
Kintarô Okamura was a Japanese botanist and educationalist (1867 - 1935). He is the author of important studies about seaweed Seaweed, or macroalgae, refers to thousands of species of macroscopic, multicellular, marine algae. The term includes some types ...
not only provided detailed descriptions of Japanese coastal algae, he also provided comprehensive analysis of their distribution. Although R. K. Greville published his ''Algae Britannicae'' as early as 1830, it was not until 1902 with the publication of ''A Catalogue of the British Marine Algae'' by Edward Arthur Lionel Batters that the systematic correlation of records, extensive distribution mapping and the development of
identification key In biology, an identification key, taxonomic key, or biological key is a printed or computer-aided device that aids the identification of biological entities, such as plants, animals, fossils, microorganisms, and pollen grains. Identification ke ...
s began in earnest. In 1899-1900,
Anna Weber-Van Bosse Anna Antoinette Weber-van Bosse (27 March 1852 – 29 October 1942) was a Dutch phycologist, specializing in marine algae. Life Her interest in botany and zoology started at a young age, inspired by regular trips to the Amsterdam zoo. She att ...
, a Dutch Phycologist travelled on the Siboga expedition and later in 1904, published
The Corallinaceae of the Siboga-expedition
'. As early as 1803 Jean Pierre Étienne Vaucher had published on the isogamy (sexual conjugation) in the algae, but it was in the early 20th century that reproduction and development began to be extensively studied. The 1935 and 1945 comprehensive volumes of Felix Eugen Fritsch consolidated what was then known about the morphology and reproduction of the algae. This was followed in the 1950s by the development of area checklists, led by Mary Parke with her 1931 ''Manx Algae'' and followed in 1953 by her "A preliminary check-list of British marine algae" Although Lily Newton's 1931 ''Handbook'' provided the first identification key for the algae of the British Isles, it was the 1960s before the development of such keys became routine. The 1980s with the new emphasis on ecology saw increased study of algal communities, and the place of algae in larger plant communities, and provided an additional tool for explaining geographical variation.Figueiras, F. G.; Picher, G. C. and Estrada, M. (2008) "Chapter 10: Harmful Algal Bloom Dynamics in Relation to Physical Processes
page 130
''In'' Granéli, E. and Turner, J. T. (2008) ''Ecology of Harmful Algae'' Springer, Berlin, pp. 127–138,
The continent with the richest diversity of seaweeds is Australia, which has 2,000 species.


Notable phycologists

*
Isabella Abbott Isabella Aiona Abbott (June 20, 1919 – October 28, 2010) was an educator, phycologist, and ethnobotanist from Hawaii. The first native Hawaiian woman to receive a PhD in science, she became a leading expert on Pacific marine algae. Early lif ...
(1919–2010) * Carl Adolph Agardh (1785–1859) *
Jacob Georg Agardh Jacob Georg Agardh (8 December 1813 in Lund, Sweden – 17 January 1901 in Lund, Sweden) was a Swedish botanist, phycologist, and taxonomist. He was the son of Carl Adolph Agardh, and from 1854 until 1879 was professor of botany at Lund Univer ...
(1813–1901) * M. S. Balakrishnan (1917–1990) * Elsie M. Burrows (1913–1986) * Margaret Constance Helen Blackler (1902–1981) *
Elsie Conway Elsie Conway (née Phillips, 15 March 1902 – 22 July 1992) was a British phycologist. She served as president of the British Phycological Society from 1965 to 1967, and was one of the earliest women Fellows of the Royal Society of Edinburgh ...
(1902–1992), President of the British Phycological Society 1965–1967. * E. Yale Dawson (1918–1966) *
Giovanni Battista de Toni Giovanni Battista de Toni (2 January 1864, Venice – 31 July 1924, Modena) was an Italian botanist, mycologist and phycologist. In 1885 he graduated from the University of Padua, where he studied natural sciences and chemistry with Pier Andre ...
(1864–1924) *
Kathleen Mary Drew-Baker Kathleen Mary Drew-Baker (6 November 1901 – 14 September 1957) was a British phycologist, known for her research on the edible seaweed '' Porphyra laciniata'' (nori), which led to a breakthrough for commercial cultivation. Kathleen Drew-Ba ...
(1901–1957) * Nathaniel Lyon Gardner (1864-1937) *
Robert Kaye Greville Dr. Robert Kaye Greville FRSE FLS LLD (13 December 1794 – 4 June 1866) was an English mycologist, bryologist, and botanist. He was an accomplished artist and illustrator of natural history. In addition to art and science he was interest ...
(1794–1866) * Michael D. Guiry (1949- ) * Lena Tracy Hanks (1879–1944) * M. O. P. Iyengar (1886-1986) * Eifion Jones (1925–2004) * Vasudeva Krishnamurthy (1921–2014) * Friedrich Traugott Kützing (1807–1893) * Marie Lemoine (1887–1984) * Diane S. Littler (1945- ) * Hans Christian Lyngbye (1782–1837) * Carola Ivena Meikle (1900-1970) * Irene Manton (1904–1988) * Valerie May (1916-2007) *
Carl Nägeli Carl Wilhelm von Nägeli (26 or 27 March 1817 – 10 May 1891) was a Swiss botanist. He studied cell division and pollination but became known as the man who discouraged Gregor Mendel from further work on genetics. He rejected natural selection ...
(1817–1891) * Lily Newton (1893–1981) * Friedrich Oltmanns (1860–1945) * William J. Oswald (1919–2005) * Mary Parke (1908–1989) * Franz Josef Ruprecht (1814–1870) * William Albert Setchell (1864–1943) *
Paul Silva Paul Claude Silva (October 31, 1922 – June 12, 2014) was a phycologist, marine biologist, and algal taxonomist considered to be the world's leading expert in the chlorophyte green algal genus '' Codium''. Silva was also an expert in botanical ...
(1922–2014) * Gilbert Morgan Smith (1885-1959) * John Stackhouse (1742–1819) * William Randolph Taylor (1895–1990) * Vittore Benedetto Antonio Trevisan de Saint-Léon (1818–1897) * Gavino Trono, (1931-) Filipino marine biologist noted for research on seaweeds * Máirin de Valéra (1912–1984) *
Anna Weber-van Bosse Anna Antoinette Weber-van Bosse (27 March 1852 – 29 October 1942) was a Dutch phycologist, specializing in marine algae. Life Her interest in botany and zoology started at a young age, inspired by regular trips to the Amsterdam zoo. She att ...
(1852-1942) * George Stephen West (1876-1919) * William West (1848–1914) * William West Jr (1875–1901) * Carl Ludwig Willdenow (1765–1812)


See also

* * * * *


References


External links


Algae: The World's Most Important "Plants"
video lecture by Russell Chapman from 2006.
British Phycological SocietyInternational Phycological SocietyAlgological
Studies is an international journal of phycology which publishes peer reviewed scientific papers of international significance from the entire field of algology (phycology)
AlgaeBaseSeaweed SiteANSP Phycology Section
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