An algal bloom or algae bloom is a rapid increase or accumulation in the population of algae in freshwater or marine water systems. It is often recognized by the discoloration in the water from the algae's pigments. The term algae encompasses many types of aquatic photosynthetic organisms, both macroscopic multicellular organisms like seaweed and microscopic unicellular organisms like cyanobacteria. Algal bloom commonly refers to the rapid growth of microscopic unicellular algae, not macroscopic algae. An example of a macroscopic algal bloom is a kelp forest.
Polytoma is a genus of flagellates in the family Chlamydomonadaceae. Algae are similar to the genus Chlamydomonas, but lack chlorophyll and are colorless. Although they are not photosynthetic, they are grouped with the green algae because they are phylogenetically related to, and derived from, flagellate green algae.
Photosynthetic picoplankton or picophytoplankton is the fraction of the photosynthetic phytoplankton of cell sizes between 0.2 and 2 µm. It is especially important in the central oligotrophic regions of the world oceans that have very low concentration of nutrients.
The Chlorellales are an order of green algae in the class Trebouxiophyceae.
Cladophorales are an order of green algae, in the class Ulvophyceae.
Mamiellales are an order of green algae in the class Mamiellophyceae. Their cells and flagella are covered with spiderweb-like scales of several types. Some species lack scales but possess pigments similar to those of the scale-bearing species.
Prasiolales is an order of green algae in the class Trebouxiophyceae.
Ulotrichales is an order of green algae in the class Ulvophyceae.
Caulerpaceae is a family of green algae in the order Bryopsidales.
Chlorellaceae are a family of green algae in the order Chlorellales.
Trentepohliaceae are a family of green algae in the order Trentepohliales.
Asteromonas is a genus of green algae in the family Asteromonadaceae. It has been described from saline, marine, and brackish environments. It is closely related to the genus Dunaliella, another genus common in saline waters.
Chlamydocapsa is a genus of green algae, specifically of the Chlorophyceae.
Micromonas is a genus of green algae in the family Mamiellaceae.
Euastrum is a genus of green algae of the Desmidiaceae family. It lives in acidic waters.
Xanthidium is a genus of green algae, specifically of the Desmidiaceae.
Janus Lauritz Andreas Kolderup Rosenvinge, generally cited as Lauritz Kolderup Rosenvinge was a Danish botanist and phycologist.
Marine primary production is the chemical synthesis in the ocean of organic compounds from atmospheric or dissolved carbon dioxide. It principally occurs through the process of photosynthesis, which uses light as its source of energy, but it also occurs through chemosynthesis, which uses the oxidation or reduction of inorganic chemical compounds as its source of energy. Almost all life on Earth relies directly or indirectly on primary production. The organisms responsible for primary production are called primary producers or autotrophs.
Costasiella nonatoi is a species of sacoglossan sea slug in the genus Costasiella. It is one of few species in the genus that is not photosynthetic. The description of this species was based on two specimens which were serially sectioned and designated as the holotype. The species was named after Dr. Edmundo Nonato, a professor at the Oceanographic Institute of the University of São Paulo.
