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Themisto (crustacean)
''Themisto'' is a genus of marine amphipods in the family Hyperiidae. Their distribution is cosmopolitan. Ecological role ''Themisto'' are obligate carnivores. ''Themisto gaudichaudii'' has been found to feed opportunistically on copepods and chaetognaths, as juveniles also on diatoms. ''Themisto'' are important prey in many food webs. For example, ''Themisto gaudichaudii'' reaches high densities (up to 61 individuals/m3) in Kerguelen waters and is a major food item for blue petrels, thin-billed prions, Antarctic prions, common diving petrels, and southern rockhopper penguins. In the Barents Sea, '' Themisto libellula'' is very abundant in the Arctic waters and important food item for cod, polar cod, and marine mammals near the ice edge, whereas '' Themisto abyssorum'' is important in Atlantic/boreal waters. Life history ''Themisto gaudichaudii'' matures at lengths between or more. Reproduction can be nearly continuous but becomes more seasonal at higher latitudes. The offspri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Themisto Gaudichaudii
''Themisto gaudichaudii'' is an amphipod crustacean of the suborder Hyperiidea. Relatives The 260 species of hyperiid amphipods are large-eyed and planktonic amphipods, whereas gammarid amphipods have smaller eyes and tend to live on the sea floor. The handful of species of the genus ''Themisto'' are the most abundant of all amphipods. Unlike other hyperiids, which parasitise gelatinous animals such as salps and jellyfish, ''Themisto'' swims free in the plankton, and is much sleeker and more streamlined than other amphipods. ''Themisto'' often forms dense swarms, similar to krill swarms. ''Themisto gaudichaudii'' is a voracious predator of anything smaller than itself, and occasionally of animals its own size or larger. In most places, the most abundant members of the plankton community are copepods, which make up the bulk of the diet of ''T. gaudichaudii'', but it also eats fish larvae, chaetognaths, pteropods, juvenile krill, and anything else it comes across. The long lim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Themisto Libellula
''Themisto libellula'' is a marine amphipod of the family Hyperiidae. The species lives for 2 to 3 years, and grows up to over its lifetime. They are found in large quantities in Arctic water. In the summer, they eat more lipids to store as fuel for the winter. During the mid-winter, they eat copepods, such as '' Calanus finmarchicus''. ''T. libellula'' is eaten by cod, polar cod, and mammals at the ice edge. In the early 2000s, the population of the species began to decrease; these effects rippled through the food chain. The levels later rose in cool years, and ''T. libellula'' have moved south of the Arctic Circle The Arctic Circle is one of the two polar circles, and the most northerly of the five major circles of latitude as shown on maps of Earth. Its southern equivalent is the Antarctic Circle. The Arctic Circle marks the southernmost latitude at w .... They have been observed in "mass mortalities", where millions of ''T. libellula'' wash up dead on the coast. Ref ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyperiidea
The Hyperiidea are a suborder of amphipods, small aquatic crustaceans. Unlike the other suborders of Amphipoda, hyperiids are exclusively marine and do not occur in fresh water. Hyperiids are distinguished by their large eyes and planktonic habitat. Most species of hyperiids are parasites or predators of salps and jellyfish in the plankton, although ''Themisto gaudichaudii'' and a few relatives are free-swimming predators of copepods and other small planktonic animals. Gallery Taxonomy According to Vinogradov ''et al.'' in 1996, 233 species of Hyperiidea are known. Some controversy exists as to the number of families in the Hyperiidea, being given as between 20 and 23 depending on whether groups like the Thaumatopsidae are considered distinct or not. The taxonomy of Hyperiidea currently accepted by the ''World Register of Marine Species'' is as follows: ;Infraorder Physocephalata Bowman & Gruner, 1973 * Parvorder Physocephalatidira Bowman & Gruner, 1973 ** Superfamily Phron ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CSIRO Publishing
CSIRO Publishing is an Australian-based science and technology publisher. It publishes books, journals and magazines across a range of scientific disciplines, including agriculture, chemistry, plant and animal sciences, natural history and environmental management. It also produces interactive learning modules for primary school students and provides writing workshops for researchers. CSIRO Publishing operates within the Commonwealth Scientific and Industrial Research Organisation (CSIRO). It was established as a stand-alone business unit in 1995. Books CSIRO Publishing publishes books in a number of categories, including: * Animals: behaviour; birds; domesticated; ecology and management; field guides; fish; genetics and evolution; health and welfare; invasive; invertebrates; mammals and marsupials; reproduction and physiology; reptiles and amphibians; and wildlife. * Built Environment: architecture; building; codes and standards; engineering; landscape architecture; and pla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Themisto Pacifica
In Greek mythology, Themisto (; Ancient Greek: Θεμιστώ) was a Thessalin princess as the daughter of King Hypseus of LapithsApollodorus, 1.9.2 and the naiad Chlidanope. Her name is derived from the Ancient Greek word: "θεμιστος" which means "belonging to the law", or "belonging to the customs". Family Themisto's sisters were Cyrene, AlcaeaScholia on Pindar, ''Pythian Ode'' 9.31 and Astyagyia. She was the third and last wife of Athamas, a Boeotian king. According to some sources, the couple had four children: Leucon, Erythrius, Schoeneus, and Ptous. In other sources, there were but two: Sphincius and Orchomenus, or else Schoeneus and Leucon. Some say that the father of Leucon was Poseidon (see also Leuconoe). Mythology Themisto intended to kill her husband's children by his previous wife, but accidentally slew her own sons. This was the subject of a non-surviving tragedy by Euripides, retold by Hyginus as follows. Athamas married Themisto as he believ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Themisto Japonica
In Greek mythology, Themisto (; Ancient Greek: Θεμιστώ) was a Thessalin princess as the daughter of King Hypseus of LapithsApollodorus, 1.9.2 and the naiad Chlidanope. Her name is derived from the Ancient Greek word: "θεμιστος" which means "belonging to the law", or "belonging to the customs". Family Themisto's sisters were Cyrene, AlcaeaScholia on Pindar, ''Pythian Ode'' 9.31 and Astyagyia. She was the third and last wife of Athamas, a Boeotian king. According to some sources, the couple had four children: Leucon, Erythrius, Schoeneus, and Ptous. In other sources, there were but two: Sphincius and Orchomenus, or else Schoeneus and Leucon. Some say that the father of Leucon was Poseidon (see also Leuconoe). Mythology Themisto intended to kill her husband's children by his previous wife, but accidentally slew her own sons. This was the subject of a non-surviving tragedy by Euripides, retold by Hyginus as follows. Athamas married Themisto as he believ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Themisto Compressa
In Greek mythology, Themisto (; Ancient Greek: Θεμιστώ) was a Thessalin princess as the daughter of King Hypseus of LapithsApollodorus, 1.9.2 and the naiad Chlidanope. Her name is derived from the Ancient Greek word: "θεμιστος" which means "belonging to the law", or "belonging to the customs". Family Themisto's sisters were Cyrene, AlcaeaScholia on Pindar, ''Pythian Ode'' 9.31 and Astyagyia. She was the third and last wife of Athamas, a Boeotian king. According to some sources, the couple had four children: Leucon, Erythrius, Schoeneus, and Ptous. In other sources, there were but two: Sphincius and Orchomenus, or else Schoeneus and Leucon. Some say that the father of Leucon was Poseidon (see also Leuconoe). Mythology Themisto intended to kill her husband's children by his previous wife, but accidentally slew her own sons. This was the subject of a non-surviving tragedy by Euripides, retold by Hyginus as follows. Athamas married Themisto as he believ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Themisto Australis
In Greek mythology, Themisto (; Ancient Greek: Θεμιστώ) was a Thessalin princess as the daughter of King Hypseus of LapithsApollodorus, 1.9.2 and the naiad Chlidanope. Her name is derived from the Ancient Greek word: "θεμιστος" which means "belonging to the law", or "belonging to the customs". Family Themisto's sisters were Cyrene, AlcaeaScholia on Pindar, ''Pythian Ode'' 9.31 and Astyagyia. She was the third and last wife of Athamas, a Boeotian king. According to some sources, the couple had four children: Leucon, Erythrius, Schoeneus, and Ptous. In other sources, there were but two: Sphincius and Orchomenus, or else Schoeneus and Leucon. Some say that the father of Leucon was Poseidon (see also Leuconoe). Mythology Themisto intended to kill her husband's children by his previous wife, but accidentally slew her own sons. This was the subject of a non-surviving tragedy by Euripides, retold by Hyginus as follows. Athamas married Themisto as he believ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brood Pouch (Peracarida)
The marsupium or brood pouch, is a characteristic feature of Peracarida, including the orders Amphipoda, Isopoda, Cladocera, and Cumacea. It is an egg chamber formed by oostegites, which are appendages that are attached to the coxae (first segment) of the first pereiopods. Females lay their eggs directly into the brood chamber, and the young will develop there, undergoing several moults before emerging as miniature adults referred to as mancae. Males have no marsupium. References {{malacostraca-stub Crustacean anatomy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Themisto Abyssorum
In Greek mythology, Themisto (; Ancient Greek: Θεμιστώ) was a Thessalin princess as the daughter of King Hypseus of LapithsApollodorus, 1.9.2 and the naiad Chlidanope. Her name is derived from the Ancient Greek word: "θεμιστος" which means "belonging to the law", or "belonging to the customs". Family Themisto's sisters were Cyrene, AlcaeaScholia on Pindar, ''Pythian Ode'' 9.31 and Astyagyia. She was the third and last wife of Athamas, a Boeotian king. According to some sources, the couple had four children: Leucon, Erythrius, Schoeneus, and Ptous. In other sources, there were but two: Sphincius and Orchomenus, or else Schoeneus and Leucon. Some say that the father of Leucon was Poseidon (see also Leuconoe). Mythology Themisto intended to kill her husband's children by his previous wife, but accidentally slew her own sons. This was the subject of a non-surviving tragedy by Euripides, retold by Hyginus as follows. Athamas married Themisto as he believ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boreogadus Saida
''Boreogadus saida'', known as the polar cod or as the Arctic cod, is a fish of the cod family Gadidae, related to the true cod (genus ''Gadus''). Another fish species for which both the common names Arctic cod and polar cod are used is ''Arctogadus glacialis''. ''B. saida'' has a slender body, a deeply forked tail, a projecting mouth, and a small whisker on its chin. It is plainly coloured with brownish spots and a silvery body. It grows to a length of . This species is found further north than any other fishChristiansen JS (2012): TUNU Programme: Euro-Arctic marine fishes - Adaptation and evolution. pp 35-50. In: Adaptation and Evolution in Marine Environments, Vol. 1: The Impacts of Global Change on Biodiversity. Springer-Verlag, Berlin Heidelberg. (beyond 84°N) with a distribution spanning the Arctic seas off northern Russia, Alaska, Canada, and Greenland. This fish is most commonly found at the water's surface, but is also known to travel at depths greater than . The po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atlantic Cod
The Atlantic cod (''Gadus morhua'') is a benthopelagic fish of the family Gadidae, widely consumed by humans. It is also commercially known as cod or codling.''Atlantic Cod'' . Seafood Portal. Dry cod may be prepared as unsalted stockfish,''Oxford English Dictionary'', 3rd ed. "milwell, ''n.''" Oxford University Press (Oxford), 2002.''Oxford English Dictionary'', 1st ed. "stock-fish , 'stockfish, ''n.''" Oxford University Press (Oxford), 1917. and as cured |
