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Dendrogyra
Pillar coral (''Dendrogyra cylindrus'') is a hard coral (order Scleractinia) found in the western Atlantic Ocean and the Caribbean Sea. It is the only species in the monotypic genus ''Dendrogyra''. It is a digitate coral -that is, it resembles fingers (Latin ''digites'') or a cluster of cigars, growing up from the sea floor without any secondary branching. It is large and can grow on both flat and sloping surfaces at depths down to 20 m (65 ft). It is one of the few types of hard coral in which the polyps can commonly be seen feeding during the day. Description Pillar coral forms an encrusted base from which grow vertical cylindrical, round-ended columns. This coral can grow to a height of with pillars more than wide but is usually much smaller than this. The corallites from which the polyps protrude are smaller than in diameter and arranged in shallow meandering valleys with low ridges in between. The skeleton of the coral is not usually visible because the polyp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corals Described In 1834
Corals are marine invertebrates within the class Anthozoa of the phylum Cnidaria. They typically form compact colonies of many identical individual polyps. Coral species include the important reef builders that inhabit tropical oceans and secrete calcium carbonate to form a hard skeleton. A coral "group" is a colony of very many genetically identical polyps. Each polyp is a sac-like animal typically only a few millimeters in diameter and a few centimeters in height. A set of tentacles surround a central mouth opening. Each polyp excretes an exoskeleton near the base. Over many generations, the colony thus creates a skeleton characteristic of the species which can measure up to several meters in size. Individual colonies grow by asexual reproduction of polyps. Corals also breed sexually by spawning: polyps of the same species release gametes simultaneously overnight, often around a full moon. Fertilized eggs form planulae, a mobile early form of the coral polyp which, when matu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meandrinidae
The Meandrinidae are a family of stony corals. The name comes from the Greek, ''maiandros'' meaning "meandering", referring to the miniature, winding valleys found between the corallites. Fossil corals in this family have been found dating back to the Cretaceous.Family Meandrinidae Classification of Scleractinian (Stony) Corals. Retrieved 2011-12-20. Description The Meandrinidae are corals and form part of the reef- building community. They contain e, microsco ...[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fort Napoléon Des Saintes
Fort Napoléon (in French: ''Fort Napoléon des Saintes'') is a fortification, located on Terre-de-Haut Island, in the Îles des Saintes, Guadeloupe. Property of the Departmental Council of Guadeloupe, it has been classified as a historical monument since the December 15, 1997. Fort Napoléon was built on the ''morne'' (Caribbean French word for "bluff") called ''Mire'', it was originally named ''Fort Louis''. It was destroyed by British forces in 1809. It was rebuilt in 1867, and named after Napoleon III, but never saw use in battle, and was instead used as a penitentiary. It has now been turned into a museum dedicated to the Saintes’ history, culture, and environment. It also has contains the Jardin exotique du Fort Napoléon, a botanical garden dedicated to local succulent plants and iguanas. History From 1759 to 1763, the English took possession of Saintes and part of mainland Guadeloupe. The archipelago was returned to the Kingdom of France upon signing of the Tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stony Coral Tissue Loss Disease
Stony coral tissue loss disease (SCTLD) is a disease of corals that first appeared off the southeast coast of Florida in 2014. It originally was described as white plague disease. By 2019 it had spread along the Florida Keys and had appeared elsewhere in the Caribbean Sea. The disease destroys the soft tissue of at least 22 species of reef-building corals, killing them within weeks or months of becoming infected. The causal agent is unknown but is suspected to be a bacterium, although more recent studies suggest a virus. The degree of susceptibility of a coral, the symptoms, and the rate of progression of the disease vary between species. Due to its rapid spread, high mortality rate, and lack of subsidence, it has been regarded as the deadliest coral disease ever recorded, with wide-ranging implications for the biodiversity of Caribbean coral reefs. History The disease was first detected in late 2014 when a few corals off Virginia Key, in Miami-Dade County, Florida, were affecte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marker 32 (reef)
Marker 32 is a coral reef located within the Florida Keys National Marine Sanctuary. It lies to the south of Key West, and is between Western Sambo reef and 9-Foot Stake reef. Unlike many reefs in the Sanctuary, it is not within a Sanctuary Preservation Area (SPA). The reef is close to navigational marker 32. Gallery Image:Pillar1_Marker32_2010.jpg, A large colony of pillar coral (''Dendrogyra cylindrus'') at Marker 32 reef, June 2010 Image:Pillar2_Marker32_2010.jpg, A small colony of pillar coral at Marker 32 reef, June 2010 Image:Barracuda_Marker32_2010.jpg, Large barracuda at Marker 32 reef, June 2010 Image:Nassau_grouper_Marker32_2010.jpg, Endangered Nassau grouper The Nassau grouper (''Epinephelus striatus'') is one of the large number of perciform fishes in the family Serranidae commonly referred to as groupers. It is the most important of the groupers for commercial fishery in the West Indies, but ha ... (''Epinephelus striatus'') at Marker 32 reef, June 2010 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Christian Gottfried Ehrenberg
Christian Gottfried Ehrenberg (19 April 1795 – 27 June 1876) was a German naturalist, zoologist, comparative anatomist, geologist, and microscopist. Ehrenberg was an evangelist and was considered to be of the most famous and productive scientists of his time. Early collections The son of a judge, Christian Gottfried Ehrenberg was born in Delitzsch, near Leipzig. He first studied theology at the University of Leipzig, then medicine and natural sciences in Berlin and became a friend of the famous explorer Alexander von Humboldt. In 1818, he completed his doctoral dissertation on fungi, ''Sylvae mycologicae Berolinenses.'' In 1820–1825, on a scientific expedition to the Middle East with his friend Wilhelm Hemprich, he collected thousands of specimens of plants and animals. He investigated parts of Egypt, the Libyan Desert, the Nile valley and the northern coasts of the Red Sea, where he made a special study of the corals. Subsequently, parts of Syria, Arabia and Abyss ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plankton
Plankton are the diverse collection of organisms found in Hydrosphere, water (or atmosphere, air) that are unable to propel themselves against a Ocean current, current (or wind). The individual organisms constituting plankton are called plankters. In the ocean, they provide a crucial source of food to many small and large aquatic organisms, such as bivalves, fish and whales. Marine plankton include bacteria, archaea, algae, protozoa and drifting or floating animals that inhabit the saltwater of oceans and the brackish waters of estuaries. Freshwater plankton are similar to marine plankton, but are found in the freshwaters of lakes and rivers. Plankton are usually thought of as inhabiting water, but there are also airborne versions, the aeroplankton, that live part of their lives drifting in the atmosphere. These include plant spores, pollen and wind-scattered seeds, as well as microorganisms swept into the air from terrestrial dust storms and oceanic plankton swept into the air ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monotypic Animal Genera
In biology, a monotypic taxon is a taxonomic group (taxon) that contains only one immediately subordinate taxon. A monotypic species is one that does not include subspecies or smaller, infraspecific taxa. In the case of genera, the term "unispecific" or "monospecific" is sometimes preferred. In botanical nomenclature, a monotypic genus is a genus in the special case where a genus and a single species are simultaneously described. In contrast, an oligotypic taxon contains more than one but only a very few subordinate taxa. Examples Just as the term ''monotypic'' is used to describe a taxon including only one subdivision, the contained taxon can also be referred to as monotypic within the higher-level taxon, e.g. a genus monotypic within a family. Some examples of monotypic groups are: Plants * In the order Amborellales, there is only one family, Amborellaceae and there is only one genus, ''Amborella'', and in this genus there is only one species, namely ''Amborella trichopoda.'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guadeloupe
Guadeloupe (; ; gcf, label=Antillean Creole, Gwadloup, ) is an archipelago and overseas department and region of France in the Caribbean. It consists of six inhabited islands—Basse-Terre, Grande-Terre, Marie-Galante, La Désirade, and the two inhabited Îles des Saintes—as well as many uninhabited islands and outcroppings. It is south of Antigua and Barbuda and Montserrat, north of the Commonwealth of Dominica. The region's capital city is Basse-Terre, located on the southern west coast of Basse-Terre Island; however, the most populous city is Les Abymes and the main centre of business is neighbouring Pointe-à-Pitre, both located on Grande-Terre Island. It had a population of 384,239 in 2019.Populations légales 2019: 971 Guadeloupe INSEE Like the other overseas departments, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hurricane
A tropical cyclone is a rapidly rotating storm system characterized by a low-pressure center, a closed low-level atmospheric circulation, strong winds, and a spiral arrangement of thunderstorms that produce heavy rain and squalls. Depending on its location and strength, a tropical cyclone is referred to by different names, including hurricane (), typhoon (), tropical storm, cyclonic storm, tropical depression, or simply cyclone. A hurricane is a strong tropical cyclone that occurs in the Atlantic Ocean or northeastern Pacific Ocean, and a typhoon occurs in the northwestern Pacific Ocean. In the Indian Ocean, South Pacific, or (rarely) South Atlantic, comparable storms are referred to simply as "tropical cyclones", and such storms in the Indian Ocean can also be called "severe cyclonic storms". "Tropical" refers to the geographical origin of these systems, which form almost exclusively over tropical seas. "Cyclone" refers to their winds moving in a circle, whirling round ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aurantimonadaceae
The ''Aurantimonadaceae'' are a small family of marine bacteria. Notable Species ''Aurantimonas coralicida'' causes a white plague in corals. ''Fulvimarina pelagi'' was isolated from seawater, and takes the form of nonmotile rods. ''Fulvimarina pelagi'' is an obligate aerobe, and obtains its nourishment chemoheterotrophically. It tests positive for oxidase and catalase, and contains carotenoid pigments, possibly to protect against solar radiation. Etymology The name ''Aurantimonas'' derives from: New Latin ''aurantus'', orange-coloured; Greek ''monas'' (μονάς), a unit; to mean an orange-coloured unicellular organism. Members of the genus ''Aurantimonas'' can be referred to as aurantimonads (''viz.'' trivialisation of names). Phylogeny The currently accepted taxonomy is based on the List of Prokaryotic names with Standing in Nomenclature List of Prokaryotic names with Standing in Nomenclature (LPSN) is an online database that maintains information on the naming and t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
