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Mariager is a town in Denmark with a population of 2,605. It is situated on the southern shores of the inlet of Mariager Fjord in Mariagerfjord municipality, North Denmark Region in Jutland. This part of Jutland is also known as Kronjylland.
The hypotrichs are a group of ciliated protozoa, common in fresh water, salt water, soil and moss. Hypotrichs possess compound ciliary organelles called "cirri," which are made up of thick tufts of cilia, sparsely distributed on the ventral surface of the cell. The multiple fused cilia which form a cirrus function together as a unit, enabling the organism to crawl along solid substrates such as submerged debris or sediments. Hypotrichs typically possess a large oral aperture, bordered on one side by a wreath or collar of membranelles, forming an "adoral zone of membranelles," or AZM.
Mariagerfjord Municipality is a municipality in North Jutland Region in Denmark. It covers an area of 723.63 km²; (2011) it has a population of 41,859 (2023).
Anoxic waters are areas of sea water, fresh water, or groundwater that are depleted of dissolved oxygen. The US Geological Survey defines anoxic groundwater as those with dissolved oxygen concentration of less than 0.5 milligrams per litre. Anoxic waters can be contrasted with hypoxic waters, which are low in dissolved oxygen. This condition is generally found in areas that have restricted water exchange.
With a length of approximately 35 km, Mariager Fjord is the longest fjord in Jutland, and the 2nd longest fjord, behind Roskilde Fjord in Denmark. Mariager Fjord cuts into the Jutland peninsula from the Kattegat sea and ends at the town of Hobro; other important towns along the fjord are Hadsund and Mariager from which the fjord takes its name. Mariager fjord makes up most of the southern limit of the traditional region of Himmerland.
Mariager Abbey was a Bridgettine abbey founded in 1430 which became an important pilgrimage site, in the present town of Mariager in northern central Jutland, Denmark.
Plagiopyla is a genus of ciliates. It includes nine species:
''''' is a of karyorelictean ciliates, belonging to Loxodidae. It is the only known karyorelictean ciliate that lives in freshwater habitats.
L'Atalante basin is a hypersaline brine lake at the bottom of the Mediterranean Sea about 192 km (119 mi) west of the island of Crete. It is named for the French L'Atalante, one of the oceanographic research vessels involved in its discovery in 1993. L'Atalante and its neighbors the Urania and Discovery deep hyper saline anoxic basins (DHABs) are at most 35,000 years old. They were formed by Messinian evaporite salt deposits dissolving out of the Mediterranean Ridge and collecting in abyssal depressions about 3,000 m (9,800 ft) deep. L'Atalante is the smallest of the three; its surface begins at about 3,500 m (11,500 ft) below sea level.
François Émile Maupas was a French librarian, protozoologist, cytologist, and botanist. Maupas contributed to ideas on the life cycle and reproduction of the ciliates. He founded the idea, known as the Maupasian life cycle, that some protists had a definite death following sexual reproduction, contrary to contemporary ideas on protists being immortal. He also identified the existence of mating types in ciliates. He developed culture techniques for a number of organisms and described the nematode Caenorhabditis elegans, which has since become a widely used model organism in biological studies.
Events from the 1430s in Denmark.
Polynucleobacter is a genus of bacteria, originally established by Heckmann and Schmidt (1987) to exclusively harbor obligate endosymbionts of ciliates belonging to the genus Euplotes.
Hadsund South Station was a railway station in Hadsund, Denmark, until 1 April 1969, when the Aalborg–Hadsund Railway and Randers–Hadsund Railway were closed. As of 2014 the station buildings still exist and are in private hands. The buildings are located on the south side of Mariager Fjord.
Polynucleobacter necessarius is a bacterium of the genus Polynucleobacter.
Randers Fjord is a 30 km (19 mi) long Danish fjord in Northern Europe leading to the sea of Kattegat, between Denmark and Sweden. The fjord is the outlet from Denmark's longest river, Gudenå. The upper 13 km (8.1 mi), starting at the town Randers, looks more like a broad river than a fjord. The lower 17 km (11 mi) have extensive reed plains bordering the shores To some extent this inhibits the recreational use of and access to the fjord. In some places, the reed beds are harvested for traditional roof thatching. The shallow eastern part of the fjord is known as Grund Fjord, being an extension of Alling Å.
Nakskov Fjord is an inlet in the west of the island of Lolland, Denmark. It is about 12 km (7.5 mi) long. There are about 10 small islands located in the fjord. The largest town in the area is Nakskov. The area is a designated bird sanctuary.
Euplotes dragescoi is a species of littoral ciliates, first found near King George Island.
Armophorea is a class of ciliates in the subphylum Intramacronucleata. . It was first resolved in 2004 and comprises three orders: Metopida, Clevelandellida, and Armophorida. Previously members of this class were thought to be heterotrichs because of similarities in morphology, most notably a characteristic dense arrangement of cilia surrounding their oral structures. However, the development of genetic tools and subsequent incorporation of DNA sequence information has led to major revisions in the evolutionary relationships of many protists, including ciliates. Metopids, clevelandellids, and armophorids were grouped into this class based on similarities in their small subunit rRNA sequences, making them one of two so-called "riboclasses" of ciliates, however, recent analyses suggest that Armophorida may not be related to the other two orders.
Cariacothrix is a genus of ciliates in the subphylum Intramacronucleata. It contains only one species, Cariacothrix caudata, and is the only genus in the monotypic family Cariacotrichidae, order Cariacotrichida, and class Cariacotrichea.
Parablepharismea is a class of free-living marine and brackish anaerobic ciliates that form a major clade of obligate anaerobes within the SAL group, together with the classes Muranotrichea and Armophorea.
References
- ↑ Morphology, ultrastructure, molecular phylogeny, and autecology of Euplotes elegans Kahl, 1932 (Hypotrichida; Euplotidae) isolated from the anoxic Mariager Fjord … MV JULIAN SCHWARZ, A Zuendorf, T Stoeck - Journal of eukaryotic microbiology, 2007
- Encystment-inducing factors in the ciliate Euplotes elegans. A Tomaru, Zoological science, 2002
