|
Americamysis Bigelowi
''Americamysis'' is a genus of mysid shrimps in the family Mysidae. The sensitivity of these shrimps to water quality makes them suitable for bioassays. ''Americamysis bahia'' and ''Americamysis almyra'', which are used frequently to test for pesticides and other toxic substances, are often referred to as ''Mysidopsis bahia'' and ''Mysidopsis almyra'' in the literature. Species The World Register of Marine Species lists the following species: *'' Americamysis alleni'' Price, Heard & Stuck, 1994 *''Americamysis almyra'' (Bowman, 1964) *''Americamysis bahia ''Americamysis bahia'' is a shrimp-like crustacean in the order Mysida, the opossum shrimps. It is native to estuarine waters in Texas and Florida in the United States. It is often referred to in the literature as ''Mysidopsis bahia'' and is w ...'' (Molenock, 1969) *'' Americamysis bigelowi'' (W. Tattersall, 1926) *'' Americamysis stucki'' Price, Heard & Stuck, 1994 *'' Americamysis taironana'' (Brattegard, 1973) Ref ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mysidacea
The Mysidacea is a group of shrimp-like crustaceans in the superorder Peracarida, comprising the two extant orders Mysida and Lophogastrida and the prehistoric Pygocephalomorpha The order Pygocephalomorpha is an extinct group of peracarid crustaceans. Pygocephalomorpha were abundant from the Carboniferous until their extinction in the Permian. Families The order contains extinct five families, and seven genera ''incert .... Current data indicate that despite their external similarities, the three orders are not closely related, and the taxon Mysidacea is not used in modern taxonomy. References {{Taxonbar, from=Q1208947 Malacostraca Obsolete arthropod taxa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Family (biology)
Family ( la, familia, plural ') is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between order and genus. A family may be divided into subfamilies, which are intermediate ranks between the ranks of family and genus. The official family names are Latin in origin; however, popular names are often used: for example, walnut trees and hickory trees belong to the family Juglandaceae, but that family is commonly referred to as the "walnut family". What belongs to a family—or if a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, but in plants, they can be characterized on the basis of both vegetative and reproductive features of plant species. Taxonomists often take different positions about descriptions, and there may be no broad consensus across the scientific community for some time. The publishing of new data and opini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mysidae
Mysidae is the largest family (biology), family of crustaceans in the order (biology), order Mysida, with over 1000 species in around 170 genera. Characteristics Members of the family Mysidae are distinguished from other mysids by the fact that the first pereopod (walking leg) has a well-developed exopod (outer branch), the carpopropodus of the endopod (inner branch) of the 3rd to 8th pereopods is divided into sub-segments and there are statocysts on the endopod of the uropods (posterior appendages). Female petalophthalmidans have two or three oostegites (flexible bristly flaps) forming the base of the Brood pouch (Peracarida), marsupium or brood pouch under the thorax, apart from the subfamily Boreomysinae, which has seven pairs of oostegites. Subfamilies and genera The following subfamilies and genera are recognised: ;Boreomysinae Holt & Tattersall, 1905 *''Neobirsteiniamysis'' Hendrickx et Tchindonova, 2020 *''Boreomysis'' G. O. Sars, 1869 ;Erythropinae Hansen, 1910 *''Aberom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bioassay
A bioassay is an analytical method to determine the concentration or potency of a substance by its effect on living animals or plants (''in vivo''), or on living cells or tissues(''in vitro''). A bioassay can be either quantal or quantitative, direct or indirect. If the measured response is binary, the assay is quantal, if not, it is quantitative. A bioassay may be used to detect biological hazards or to give an assessment of the quality of a mixture. A bioassay is often used to monitor water quality as well as wastewater discharges and its impact on the surroundings. It is also used to assess the environmental impact and safety of new technologies and facilities. Principle A bioassay is a biochemical test to estimate the potency of a sample compound. Usually this potency can only be measured relative to a standard compound. A typical bioassay involves a ''stimulus'' (ex. drugs) applied to a ''subject'' (ex. animals, tissues, plants). The corresponding ''response'' (ex. death) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Americamysis Bahia
''Americamysis bahia'' is a shrimp-like crustacean in the order Mysida, the opossum shrimps. It is native to estuarine waters in Texas and Florida in the United States. It is often referred to in the literature as ''Mysidopsis bahia'' and is widely cultured and used in the laboratory for toxicology testing. Description ''Americamysis bahia'' grows to a length of about , the females being larger than the males. These shrimps are transparent, often with a yellowish, brownish or blackish tinge. Distribution and habitat ''Americamysis bahia'' is native to the east coast of the United States, its range extending from Rhode Island to Florida and the Gulf of Mexico. It is an estuarine species and can tolerate a wide range of salinity levels ranging from 54 to 2 psu (practical salinity units), being most common around 30 psu. It is seldom found at depths greater than and its typical habitat is over sandy or muddy seabeds, often in seagrass meadows. Behaviour ''Americamysis bahia'' i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Americamysis Almyra
''Americamysis almyra'' is a shrimp-like crustacean in the order Mysida, the opossum shrimps. It is native to estuarine waters in the western Atlantic Ocean and Gulf of Mexico. It is often referred to in the literature as ''Mysidopsis almyra''. Distribution and habitat ''Americamysis almyra'' is native to shallow parts of the western Atlantic Ocean and Gulf of Mexico. Its range extends from Maryland to Florida and the whole Gulf of Mexico, and includes the brackish waters of Lake Pontchartrain, St. Andrews Bay and Chesapeake Bay. Its habitat is typically seagrass meadows and shallow marshy areas at depths of less than . It is tolerant of salinities ranging from 0 to 30 psu (practical salinity units) but is usually found in areas with a salinity below 20 psu. ''Americamysis almyra'' was first described from Lake Pontchartrain from specimens collected in 1953. It was identified as being present in St. Johns River Florida in 1977 and was first detected in the Patapsco River flow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pesticide
Pesticides are substances that are meant to control pests. This includes herbicide, insecticide, nematicide, molluscicide, piscicide, avicide, rodenticide, bactericide, insect repellent, animal repellent, microbicide, fungicide, and lampricide. The most common of these are herbicides which account for approximately 80% of all pesticide use. Most pesticides are intended to serve as plant protection products (also known as crop protection products), which in general, protect plants from weeds, fungi, or insects. As an example, the fungus ''Alternaria solani'' is used to combat the aquatic weed ''Salvinia''. In general, a pesticide is a chemical (such as carbamate) or biological agent (such as a virus, bacterium, or fungus) that deters, incapacitates, kills, or otherwise discourages pests. Target pests can include insects, plant pathogens, weeds, molluscs, birds, mammals, fish, nematodes (roundworms), and microbes that destroy property, cause nuisance, or spread disease, or a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World Register Of Marine Species
The World Register of Marine Species (WoRMS) is a taxonomic database that aims to provide an authoritative and comprehensive list of names of marine organisms. Content The content of the registry is edited and maintained by scientific specialists on each group of organism. These taxonomists control the quality of the information, which is gathered from the primary scientific literature as well as from some external regional and taxon-specific databases. WoRMS maintains valid names of all marine organisms, but also provides information on synonyms and invalid names. It is an ongoing task to maintain the registry, since new species are constantly being discovered and described by scientists; in addition, the nomenclature and taxonomy of existing species is often corrected or changed as new research is constantly being published. Subsets of WoRMS content are made available, and can have separate badging and their own home/launch pages, as "subregisters", such as the ''World List of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Americamysis Alleni
''Americamysis'' is a genus of mysid shrimps in the family Mysidae. The sensitivity of these shrimps to water quality makes them suitable for bioassays. ''Americamysis bahia'' and ''Americamysis almyra'', which are used frequently to test for pesticides and other toxic substances, are often referred to as ''Mysidopsis bahia'' and ''Mysidopsis almyra'' in the literature. Species The World Register of Marine Species lists the following species: *'' Americamysis alleni'' Price, Heard & Stuck, 1994 *''Americamysis almyra'' (Bowman, 1964) *''Americamysis bahia'' (Molenock, 1969) *''Americamysis bigelowi ''Americamysis'' is a genus of mysid shrimps in the family Mysidae. The sensitivity of these shrimps to water quality makes them suitable for bioassays. ''Americamysis bahia'' and ''Americamysis almyra'', which are used frequently to test for pe ...'' (W. Tattersall, 1926) *'' Americamysis stucki'' Price, Heard & Stuck, 1994 *'' Americamysis taironana'' (Brattegard, 1973) Ref ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Americamysis Bigelowi
''Americamysis'' is a genus of mysid shrimps in the family Mysidae. The sensitivity of these shrimps to water quality makes them suitable for bioassays. ''Americamysis bahia'' and ''Americamysis almyra'', which are used frequently to test for pesticides and other toxic substances, are often referred to as ''Mysidopsis bahia'' and ''Mysidopsis almyra'' in the literature. Species The World Register of Marine Species lists the following species: *'' Americamysis alleni'' Price, Heard & Stuck, 1994 *''Americamysis almyra'' (Bowman, 1964) *''Americamysis bahia ''Americamysis bahia'' is a shrimp-like crustacean in the order Mysida, the opossum shrimps. It is native to estuarine waters in Texas and Florida in the United States. It is often referred to in the literature as ''Mysidopsis bahia'' and is w ...'' (Molenock, 1969) *'' Americamysis bigelowi'' (W. Tattersall, 1926) *'' Americamysis stucki'' Price, Heard & Stuck, 1994 *'' Americamysis taironana'' (Brattegard, 1973) Ref ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Americamysis Stucki
''Americamysis'' is a genus of mysid shrimps in the family Mysidae. The sensitivity of these shrimps to water quality makes them suitable for bioassays. ''Americamysis bahia'' and ''Americamysis almyra'', which are used frequently to test for pesticides and other toxic substances, are often referred to as ''Mysidopsis bahia'' and ''Mysidopsis almyra'' in the literature. Species The World Register of Marine Species lists the following species: *''Americamysis alleni'' Price, Heard & Stuck, 1994 *''Americamysis almyra'' (Bowman, 1964) *''Americamysis bahia'' (Molenock, 1969) *''Americamysis bigelowi ''Americamysis'' is a genus of mysid shrimps in the family Mysidae. The sensitivity of these shrimps to water quality makes them suitable for bioassays. ''Americamysis bahia'' and ''Americamysis almyra'', which are used frequently to test for pe ...'' (W. Tattersall, 1926) *'' Americamysis stucki'' Price, Heard & Stuck, 1994 *'' Americamysis taironana'' (Brattegard, 1973) Refe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
