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Ichthyodinium
''Ichthyodinium'' is a monotypic genus of dinoflagellates in the family Dinophysaceae. ''Ichthyodinium chabelardi'' (/ɪkθioʊˈdɪniəm/) is currently the sole described species of the genus. ''Ichthyodinium chabelardi'' is a generalist parasite with a very broad geographic range. It has been found in locations such as the coasts of Indonesia and Vietnam, the Mediterranean Sea, and off the coast of Portugal. The full extent of its distribution is not known. While it can be found throughout most of the year, it has been observed to infect sardine eggs with the highest rates in the winter and early spring, from December to March. It is of economic significance to the fish industry, where it depletes the numbers of many species of fin fish by acting as an endoparasite in host embryos. It was originally described in 1952 by Hollande and Cachon, who described it as an agent of infection amongst sardines off the coast of Algeria, in the Mediterranean Sea. In 2006, Gestal et al. p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boops Boops
''Boops boops'' ( ; from Ancient Greek , ), commonly called the boce, bogue, or bogue bream, is a species of seabream native to the eastern Atlantic. Taxonomy In the fourth century BCE, ''Boops boops'' was documented by Aristotle as () in his ''Historia Animalium''. The common name ''boce'' is thus ultimately derived from the Greek via the Latin . In the early third century CE, Athenaeus, in his ''Deipnosophistae'', also called the fish and suggested that the name came from the sound that the fish makes (, ). The name (, ) is mentioned due to the fish's large eyes. The first scientific description comes from Carl Linnaeus in the tenth edition of ''10th edition of Systema Naturae, Systema Naturae'' as ''Sparus boops''. It was later reclassified under the genus ''Boops''. Distribution and habitat The species is found off the coasts of Europe, Africa, the Azores and the Canary Islands, from Norway to Angola, and in the Mediterranean and Black Seas. It avoids brackish waters such ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dinophysaceae
Dinophysaceae is a family of dinoflagellates in the class Dinophyceae. Genera According to the World Register of Marine Species, the following species are accepted within: * '' Citharistes'' Stein * '' Dinoceras'' Schiller * '' Dinofurcula'' Kofoid & Skogsberg * ''Dinophysis'' Ehrenberg * '' Heteroschisma'' Kofoid & Skogsberg * '' Histioneis'' Stein * ''Ichthyodinium ''Ichthyodinium'' is a monotypic genus of dinoflagellates in the family Dinophysaceae. ''Ichthyodinium chabelardi'' (/ɪkθioʊˈdɪniəm/) is currently the sole described species of the genus. ''Ichthyodinium chabelardi'' is a generalist para ...'' Hollande & J.Cachon * '' Metaphalacroma'' Tai & Skogsberg * '' Ornithocercus'' Stein * '' Sinophysis'' Nie & C.Wang * '' Thaumatodinium'' A.Böhm References {{Taxonbar, from=Q25364358 Dinophyceae Dinoflagellate families ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monotypic Taxon
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 Genus, 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. Theoretical implications Monotypic taxa present several important theoretical challenges in biological classification. One key issue is known as "Gregg's Paradox": if a single species is the only member of multiple hierarchical levels (for example, being the only species in its genus, which is the only genus in its family), then each level needs a distinct definition to maintain logical structure. Otherwise, the different taxonomic ranks become effectively identical, which creates problems for organizing biological diversity in a hierarchical o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dinoflagellate
The Dinoflagellates (), also called Dinophytes, are a monophyletic group of single-celled eukaryotes constituting the phylum Dinoflagellata and are usually considered protists. Dinoflagellates are mostly marine plankton, but they are also common in freshwater habitats. Their populations vary with sea surface temperature, salinity, and depth. Many dinoflagellates are photosynthetic, but a large fraction of these are in fact mixotrophic, combining photosynthesis with ingestion of prey ( phagotrophy and myzocytosis). In terms of number of species, dinoflagellates are one of the largest groups of marine eukaryotes, although substantially smaller than diatoms. Some species are endosymbionts of marine animals and play an important part in the biology of coral reefs. Other dinoflagellates are unpigmented predators on other protozoa, and a few forms are parasitic (for example, '' Oodinium'' and '' Pfiesteria''). Some dinoflagellates produce resting stages, called dinoflagellate cys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synapomorphy
In phylogenetics, an apomorphy (or derived trait) is a novel Phenotypic trait, character or character state that has evolution, evolved from its ancestral form (or Plesiomorphy and symplesiomorphy, plesiomorphy). A synapomorphy is an apomorphy shared by two or more taxon, taxa and is therefore Hypothesis#Scientific hypothesis, hypothesized to have evolved in their most recent common ancestor. ) In cladistics, synapomorphy implies Homology (biology), homology. Examples of apomorphy are the presence of Terrestrial locomotion#Posture, erect gait, fur, Evolution of mammalian auditory ossicles, the evolution of three middle ear bones, and mammary glands in mammals but not in other vertebrate animals such as amphibians or reptiles, which have retained their ancestral traits of a Terrestrial locomotion#Posture, sprawling gait and lack of fur. Thus, these derived traits are also synapomorphies of mammals in general as they are not shared by other vertebrate animals. Etymology The word ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Climate Change
Present-day climate change includes both global warming—the ongoing increase in Global surface temperature, global average temperature—and its wider effects on Earth's climate system. Climate variability and change, Climate change in a broader sense also includes previous long-term changes to Earth's climate. The current rise in global temperatures is Scientific consensus on climate change, driven by human activities, especially fossil fuel burning since the Industrial Revolution. Fossil fuel use, Deforestation and climate change, deforestation, and some Greenhouse gas emissions from agriculture, agricultural and Environmental impact of concrete, industrial practices release greenhouse gases. These gases greenhouse effect, absorb some of the heat that the Earth Thermal radiation, radiates after it warms from sunlight, warming the lower atmosphere. Carbon dioxide, the primary gas driving global warming, Carbon dioxide in Earth's atmosphere, has increased in concentratio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bristlemouth
The Gonostomatidae are a family of mesopelagic marine fish, commonly named bristlemouths, lightfishes, or anglemouths. It is a relatively small family, containing only eight known genera and 32 species. However, bristlemouths make up for their lack of diversity with relative abundance, numbering in the hundreds of trillions to quadrillions. The genus ''Cyclothone'' (with 13 species) is thought to be one of the most abundant vertebrate genera in the world. The fossil record of this family dates back to the Miocene epoch. Living bristlemouths were discovered by William Beebe in the early 1930s and described by L. S. Berg in 1958. The fish are mostly found in the Atlantic, Indian, and Pacific Oceans, although the species ''Cyclothone microdon'' may be found in Arctic waters. They have elongated bodies from in length. They have a number of green or red light-producing photophores aligned along the undersides of their heads or bodies. Their chief common name, bristlemouth, comes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gadus Morhua
The Atlantic cod (: cod; ''Gadus morhua'') is a fish of the family Gadidae, widely consumed by humans. It is also commercially known as ''cod'' or ''codling''.''Atlantic Cod'' . Seafood Portal. In the western Atlantic Ocean, cod has a distribution north of , , and around both coasts of and the |
Sardina Pilchardus
The European pilchard (''Sardina pilchardus'') is a species of ray-finned fish in the monotypic genus ''Sardina''. The young of the species are among the many fish that are sometimes called sardines. This common species is found in the northeast Atlantic, the Mediterranean, and the Black Sea at depths of . It reaches up to in length and mostly feeds on planktonic crustaceans. This schooling species is a batch spawner where each female lays 50,000–60,000 eggs. Description The European pilchard is a small to medium-sized, somewhat elongated, herring-like fish. The origin of the pelvic fins is well behind that of the dorsal fin, and the last two soft rays on the anal fin are larger than the remainder. The upper parts are green or olive, the flanks are golden and the belly is silvery. Not to be confused with its American counterpart, the California sardine, ''Sardina sagax,'' the European sardine ''S. pilchardus'' does not have a row of dark blotches. They also have scales tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sparus Aurata
The gilt-head bream (''Sparus aurata''), also known as the gilthead, dourade, gilt-head seabream or silver seabream, is a species of marine ray-finned fish belonging to the family Sparidae, the seabreams or porgies. This fish is found in the Eastern Atlantic and the Mediterranean. It is a highly esteemed food fish and an important species in aquaculture. Taxonomy The gilt-head bream was first formally described in 1758 by Carl Linnaeus in the 10th edition of ''Systema Naturae'' with its type locality given as the Mediterranean and Venezuela (although this has now been shown to be a specimen of ''Calamus''). It is the only species in the monospecific genus ''Sparus''. The genus ''Sparus'' is placed in the family Sparidae within the order Spariformes by the 5th edition of ''Fishes of the World''. Some authorities classify this genus in the subfamily Sparinae, but the 5th edition of ''Fishes of the World'' does not recognise subfamilies within the Sparidae. Etymology The gilt-hea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plectropomus Leopardus
The leopard coral grouper (''Plectropomus leopardus''), also known as the common coral trout, leopard coral trout, blue-dotted coral grouper or spotted coral grouper, is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. It is found in the Western Pacific Ocean. Coral trout are the favourite target fish for all sectors of the fishery because they are a good food fish and command high market prices locally and overseas. The total commercial catch of coral trout was reported at over 1500 tonnes in 1998. Description The leopard coral grouper has a body which is elongate and robust, with the standard length being 2.9 to 3.9 times the depth of the body. The preopercle is mostly rounded, with three large, downward pointing spines along the bottom half. The dorsal fin contains 7-8 spines and 10-12 soft rays while the anal fin contains 3 spines and 8 soft rays. The spin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
