|
Uet Era Ongael
Uet era Ongael (Ongael Lake) is a marine lake located on Ongael Island, Koror, in Palau. There are about 70 other marine lakes located throughout the Rock Islands and Koror. Uet era Ongael is notable for endemic subspecies of golden jellyfish and is one of five marine lakes in Palau used for several scientific researches in evolutionary biology, the other lakes being Jellyfish Lake, Clear Lake, Uet era Ngermeuangel and Goby Lake. Golden jellyfish Uet era Ongael is connected to the ocean through fissures and tunnels in the limestone of ancient Miocene reefs. However the lake is sufficiently isolated and the conditions are different enough that the diversity of species in the lake is greatly reduced from the nearby lagoon. The golden jellyfish ''Mastigias'' cf. '' papua remengesaui'' is substantially different from their close relatives living in the nearby lagoons. This is the most ornate of Palau lake jellyfishes, with solid white spots; younger jellyfish have a pale blue c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ongael Island
Ongael Island is an island in Koror State, Palau Palau,, officially the Republic of Palau and historically ''Belau'', ''Palaos'' or ''Pelew'', is an island country and microstate in the western Pacific. The nation has approximately 340 islands and connects the western chain of the .... It is the location of the famous Ongael Lake. References External links Wondermondo: Uet era Ongael - marine lake of jellyfish Uninhabited islands of Palau Koror {{Palau-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uet Era Ngermeuangel
Uet era Ngermeuangel (Ngermeuangel Lake, Big Jellyfish Lake) is a marine lake located on Koror island in Palau. There are about 70 other marine lakes located throughout the Rock Islands and Koror. Uet era Ngermeuangel is notable for endemic subspecies of golden jellyfish and is one of five marine lakes in Palau used for several scientific researches in evolutionary biology the other lakes being Jellyfish Lake, Clear Lake (Palau), Goby Lake, Uet era Ongael. Golden jellyfish Uet era Ngermeuangel is connected to the ocean through fissures and tunnels in the limestone of ancient Miocene reef. However the lake is sufficiently isolated and the conditions are different enough that the diversity of species in the lake is greatly reduced from the nearby lagoon. The golden jellyfish ''Mastigias'' cf. ''papua remeliiki'' and possibly other species in the lake have evolved to be substantially different from their close relatives living in the nearby lagoons. In the lake there is living als ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Holomictic
Holomictic lakes are lakes that have a uniform temperature and density from surface to bottom at a specific time during the year, which allows the lake waters to mix in the absence of Stratification (water), stratification. Details Holomictic lakes mix at least occasionally, in contrast to Meromictic lake, meromictic lakes. Most lakes on Earth are holomictic; meromictic lakes are rare, although they may be less rare than commonly thought. Amictic lake, Amictic lakes are sealed off by ice and never mix. There are four types of holomictic lakes: * polymictic lake, Polymictic (mixing many times annually) * Cold monomictic lake, Monomictic (mixing once annually; exhibiting negative stratification) * Warm Monomictic (mixing once annually; exhibiting positive stratification) * dimictic lake, Dimictic (mixing twice annually) * Oligomictic (mixing less than once annually) See also * Thermocline * References External links"Circulation: annual patterns of dimictic lakes" at Encycl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cassiopea
''Cassiopea'' (upside-down jellyfish) is a genus of true jellyfish and the only members of the family Cassiopeidae. They are found in warmer coastal regions around the world, including shallow mangrove swamps, mudflats, canals, and turtle grass flats in Florida, and the Caribbean and Micronesia. The medusa usually lives upside-down on the bottom, which has earned them the common name. These jellyfish partake in a symbiotic relationship with photosynthetic dinoflagellates and therefore, must lie upside-down in areas with sufficient light penetration to fuel their energy source. Where found, there may be numerous individuals with varying shades of white, blue, green and brown. Species According to the ''World Register of Marine Species'', this genus includes 8 species: * ''Cassiopea andromeda'' (Forsskål, 1775) * '' Cassiopea depressa'' Haeckel, 1880 * '' Cassiopea frondosa'' (Pallas, 1774) * ''Cassiopea maremetens'' Gershwin, Zeidler & Davie, 2010 * '' Cassiopea medusa'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. Other ways of defining species include their karyotype, DNA sequence, morphology, behaviour or ecological niche. In addition, paleontologists use the concept of the chronospecies since fossil reproduction cannot be examined. The most recent rigorous estimate for the total number of species of eukaryotes is between 8 and 8.7 million. However, only about 14% of these had been described by 2011. All species (except viruses) are given a two-part name, a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature, also sometimes i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aurelia (genus)
''Aurelia'' is a genus of scyphozoan jellyfish, commonly called moon jellies. There are currently 25 accepted species and many that are still Undescribed taxon, not formally described. The genus was first described in 1816 by Jean-Baptiste Lamarck in his book ''Histoire Naturelle des Animaux sans Vertèbres'' (Natural History of Invertebrates). It has been suggested that ''Aurelia'' is the best-studied group of gelatinous zooplankton, with ''Aurelia aurita'' the best-studied species in the genus; two other species, ''Aurelia labiata'' and ''Aurelia limbata'' were also traditionally investigated throughout the 20th century. In the early 2000s, studies that considered genetic data showed that diversity in ''Aurelia'' was higher than expected based solely on morphology, so one cannot confidently attribute the results from most of the previous studies to the species named. More recently, studies have highlighted the morphological variability (including the potential for phenotypic pla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mastigias Papua
The spotted jelly (''Mastigias papua''), lagoon jelly, golden medusa, or Papuan jellyfish, is a species of jellyfish from the Indo-Pacific oceans. Like corals, sea anemones, and other sea jellies, it belongs to the phylum Cnidaria. ''Mastigias papua'' is one of the numerous marine animals living in symbiosis with zooxanthellae, a photosynthetic alga. They have a lifespan of approximately 4 months and are active primarily in mid-summer to early autumn. Taxonomy Five subspecies have been described, inhabiting separate marine lakes in the Palau group. *''M.'' cf. ''p. remengesaui'' (in Uet era Ongael) *''M.'' cf. ''p. nakamurai'' (in Goby Lake) *''M.'' cf. ''p. etpisoni'' (in Ongeim’l Tketau) *''M.'' cf. ''p. saliii'' (in Clear Lake) *''M.'' cf. ''p. remeliiki'' (in Uet era Ngermeuangel) Description The spotted jelly is so named because of the little dots that garnish its jelly. It usually measures between in length and between in diameter but some individuals can reach l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mastigias
''Mastigias'' is a genus of true jellyfish in the family Mastigiidae. It contains seven described species. Members of this genus are found widely in coastal regions of the Indo-Pacific, including saline lakes of Palau (e.g., Jellyfish Lake), but there are also records from the West Atlantic at Florida and Puerto Rico. The West Atlantic records are most likely the result of accidental introductions by humans. Species According to the ''World Register of Marine Species'', this genus includes seven species: * '' Mastigias albipunctatus'' * '' Mastigias andersoni'' * '' Mastigias gracilis'' * '' Mastigias ocellatus'' – golden medusa * '' Mastigias pantherinus'' * ''Mastigias papua The spotted jelly (''Mastigias papua''), lagoon jelly, golden medusa, or Papuan jellyfish, is a species of jellyfish from the Indo-Pacific oceans. Like corals, sea anemones, and other sea jellies, it belongs to the phylum Cnidaria. ''Mastigias p ...'' – spotted jelly * '' Mastigias siderea'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miocene
The Miocene ( ) is the first geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and means "less recent" because it has 18% fewer modern marine invertebrates than the Pliocene has. The Miocene is preceded by the Oligocene and is followed by the Pliocene. As Earth went from the Oligocene through the Miocene and into the Pliocene, the climate slowly cooled towards a series of ice ages. The Miocene boundaries are not marked by a single distinct global event but consist rather of regionally defined boundaries between the warmer Oligocene and the cooler Pliocene Epoch. During the Early Miocene, the Arabian Peninsula collided with Eurasia, severing the connection between the Mediterranean and Indian Ocean, and allowing a faunal interchange to occur between Eurasia and Africa, including the dispersal of proboscideans into Eurasia. During the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Goby Lake
Goby Lake is a marine lake located on Koror island in Palau. There are about 70 other marine lakes located throughout the Rock Islands and Koror. Goby Lake is notable for endemic subspecies of golden jellyfish and is one of five marine lakes in Palau used for several scientific researches in evolutionary biology the other lakes being Jellyfish Lake, Clear Lake (Palau), Uet era Ngermeuangel, Uet era Ongael. Golden jellyfish Clear Lake is connected to the ocean through fissures and tunnels in the limestone of ancient Miocene reef. However the lake is sufficiently isolated and the conditions are different enough that the diversity of species in the lake is greatly reduced from the nearby lagoon. The golden jellyfish ''Mastigias'' cf. ''papua nakamurai'' and possibly other species in the lake have evolved to be substantially different from their close relatives living in the nearby lagoons. The lake is rich with several species of fish, including goby, giving to lake its name. Lak ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clear Lake (Palau)
Clear Lake (also Clearwater Lake) is a marine lake located on Eil Malk island in Palau. Eil Malk (also Mecherchar) is part of the Rock Islands, a group of small, rocky, mostly uninhabited islands in Palau's Southern Lagoon, between Koror and Peleliu. There are about 70 other marine lakes located throughout the Rock Islands. Clear Lake is notable for endemic subspecies of golden jellyfish and is one of five marine lakes in Palau used for several scientific researches in evolutionary biology, the other lakes being Jellyfish Lake, Goby Lake, Uet era Ngermeuangel, Uet era Ongael. Golden jellyfish Clear Lake is one of the oldest of Meromictic_lake, meromictic marine lakes in Palau and is circa 15,000 - 12,000 years old. It is connected to the ocean through fissures and tunnels in the limestone of ancient Miocene reef. However the lake is sufficiently isolated and the conditions are different enough that the diversity of species in the lake is greatly reduced from the nearby lagoon. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Koror
Koror is the state comprising the main commercial centre of the Republic of Palau. It consists of several islands, the most prominent being Koror Island (also ''Oreor Island''). It is Palau’s most populous state. History In the oral tradition of Palau, Koror is one of the children of Milad, and thus occupies an important position in traditional belief. In addition, Koror is the home of the clan of the Ibedul, the high chief of Palau. Several traditional villages in Koror span the volcanic and rock island portions. Many of the stone platforms , odesongel, serve as clan cemeteries, and other stone features serve as shrines. The lagoon is an important resource area, and was probably intensively exploited prehistorically. The first sighting of Koror, Babeldaob, and Peleliu recorded by Westerners was by the Spanish expedition of Ruy López de Villalobos at the end of January, 1543. They were then charted as ''Los Arrecifes'' (The Reefs in Spanish). In November and December 1710 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
