Mnemiopsis leidyi is a bioluminescent comb jellyfish of the genus Mnemiopsis. In 1999 this invasive species was introduced in the Caspian Sea. The result was that 75 % of the zooplankton was annihilated, thereby affecting the entire food chain of the lake. Scientific classification or biological classification is a method by which biologists group and categorize species of organisms. ... “Animalia” redirects here. ... This article or section is in need of attention from an expert on the subject. ... Orders Cestida Cydippida Lobata Platyctenida Tentaculata is a class of Ctenophora known as comb jellies. ... Families Bathocyroidae Bolinopsidae Eurhamphaeidae Mnemiidae Ocyropsidae Lobata is a Cnidarian of the order ctenophora in the class tentaculata with smaller tentacles than other ctenophores. ... Mnemiopsis is a genus of ctenophore (comb jellies). ... In biology, binomial nomenclature is the formal method of naming species. ... Alexander Agassiz Alexander Emanuel Agassiz (December 17, 1835 – March 27, 1910), son of Louis Agassiz, was an American scientist and engineer. ... Bioluminescence is the production and emission of visible light by a living organism as the result of a chemical reaction during which chemical energy is converted to light energy. ... Mnemiopsis is a genus of ctenophore (comb jellies). ... Lantana invasion of abandoned citrus plantation; Moshav Sdey Hemed, Israel The term invasive species refers to a subset of introduced species or non-indigenous species that are rapidly expanding outside of their native range. ... The Caspian Sea (Russian: Каспийское море; Kazakh: Каспий теңізі; Turkmen: Hazar deňizi; Azeri: XÉ™zÉ™r dÉ™nizi; Persian: دریای خزر Daryā-ye Khazar) is the largest lake on Earth by area[2], with a surface area of 371,000 square kilometers (143,244 sq mi) and a volume of 78,200 cubic kilometers (18... Photomontage of plankton organisms Plankton is the aggregate community of weakly swimming but mostly drifting small organisms that inhabit the water column of the ocean, seas, and bodies of freshwater. ... This article or section does not cite any references or sources. ...

Previously, it was introduced in the Black Sea in the 1980's to deal with the eutrophication (phytoplankton and Aurelia aurita medusae) caused by human pollution. The comb jelly eats eggs and larvae of anchovy and competes for the same food sources. It caused a dramatic drop in pelagic fish populations. NASA satellite image of the Black Sea Map of the Black Sea The Black Sea is an inland sea between southeastern Europe and Anatolia that is actually a distant arm of the Atlantic Ocean by way of the Mediterranean Sea. ... Eutrophication is caused by the increase of chemical nutrients, typically compounds containing nitrogen or phosphorus, in an ecosystem. ... Diagrams of some typical phytoplankton Phytoplankton are the autotrophic component of the plankton that drift in the water column. ... Binomial name Aurelia aurita Linnaeus, 1758 Aurelia aurita (the jelly, moon jelly fish, moon jellyfish, common jellyfish, saucer jelly or swimming jellyfish) is the most common jellyfish species found in the genus Aurelia. ... Medusa, by Arnold Böcklin (1878) In Greek mythology, Medusa (Greek: Μέδουσα, Médousa, guardian, protectress[1]), was a monstrous chthonic female character, essentially an extension of an apotropaic mask, gazing upon whom could turn onlookers to stone. ... {{Taxobox classis = Actinopterygii | ordo = Clupeiformes | familia = Engraulidae | subdivision_ranks = Genera | subdivision = Amazonsprattus Anchoa Anchovia Anchiovella Cetengraulis Coilia Encrasicholina Engraulis Jurengraulis Lycengraulis Lycothrissa Papuengraulis Pterengraulis Setipinna Stolephorus Thryssa }} The anchovies are a family large but uncommon schooling saltwater plankton-feeding fish. ... The pelagic zone is the part of the open sea or ocean comprising the water column, i. ...

Biological control was tried with Beroe (a predator). Biological control of pests and diseases Overview A key belief of the organic gardener is that diversity furthers health. ... PFK Beroe is a Bulgarian football club from Stara Zagora, founded in 1916. ...

External links

• Ecology.UGent.be/Limnology
• Science.org "Fall and Rise of the Black Sea Ecosystem"
• Ctenophores from the São Sebastião Channel