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Caridean
The Caridea, commonly known as caridean shrimp or true shrimp, are an infraorder of shrimp within the order Decapoda. This infraorder contains all species of true shrimp. They are found widely around the world in both fresh and salt water. Many other animals with similar names – such as the mud shrimp of Axiidea and the boxer shrimp of Stenopodidea – are not true shrimp, but many have evolved features similar to true shrimp. Biology Carideans are found in every kind of aquatic habitat, with the majority of species being marine. Around a quarter of the described species are found in fresh water, however, including almost all the members of the species-rich family Atyidae and the Palaemonidae subfamily Palaemoninae. They include several commercially important species, such as ''Macrobrachium rosenbergii'', and are found on every continent except Antarctica. The marine species are found at depths to , and from the tropics to the polar regions. In addition to the great variety ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shrimp
Shrimp are crustaceans (a form of shellfish) with elongated bodies and a primarily swimming mode of locomotion – most commonly Caridea and Dendrobranchiata of the decapod order, although some crustaceans outside of this order are referred to as "shrimp". More narrow definitions may be restricted to Caridea, to smaller species of either group or to only the marine species. Under a broader definition, ''shrimp'' may be synonymous with prawn, covering stalk-eyed swimming crustaceans with long, narrow muscular tails (abdomens), long whiskers ( antennae), and slender legs. Any small crustacean which resembles a shrimp tends to be called one. They swim forward by paddling with swimmerets on the underside of their abdomens, although their escape response is typically repeated flicks with the tail driving them backwards very quickly. Crabs and lobsters have strong walking legs, whereas shrimp have thin, fragile legs which they use primarily for perching.Rudloe & Rudloe (2009 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stenopodidea
The Stenopodidea or boxer shrimps are a small group of decapod crustaceans. Often confused with Caridea shrimp or Dendrobranchiata prawns, they are neither, belonging to their own group. Anatomy They can be differentiated from the Dendrobranchiata prawns by their lack of branching gills, and by the fact that they brood their eggs instead of directly releasing them into the water. They differ from the Caridea shrimp by their greatly enlarged third pair of legs. Taxonomy Stenopodidea belongs to the order Decapoda, and is most closely related to the Caridea and Procarididea infraorders of shrimp. The cladogram below shows Stenopodidea's relationships to other relatives within Decapoda, from analysis by Wolfe ''et al.'', 2019. There are 71 extant species currently recognized within Stenopodidea, divided into 12 genera. Three fossil species are also recognized, each belonging to a separate genus. The earliest fossil assigned to the Stenopodidea is '' Devonostenopus pennsylvan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alpheoidea
Alpheoidea is a superfamily of shrimp containing the families Alpheidae, Barbouriidae, Hippolytidae and Ogyrididae Ogyrididae is a family of decapod crustaceans consisting of 10 species. Appearance Eyes are elongate, reaching nearly to distal end of antennular peduncle. Their first pair of pereiopods is robust and similar in size to the second pair; disti .... References Caridea Taxa named by Constantine Samuel Rafinesque Arthropod superfamilies {{Caridea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Psalidopus
''Psalidopus'' is a genus of shrimp placed in its own family, Psalidopodidae, and superfamily, Psalidopodoidea. It comprises three species, one in the western Atlantic Ocean, and two in the Indo-Pacific. ''Psalidopus barbouri'' ''P. barbouri'' occurs on continental and insular slopes from Florida, the Bahamas and the Gulf of Mexico, to parts of the Caribbean Sea, perhaps extending as far south as Suriname. ''P. barbouri'' lives on steeply sloping soft muddy bottoms, sometimes mixed with sand, at depths of 400–800 m, where the temperature ranges from . Adults have a carapace length of , with the total length of the animal, from the tip of the rostrum to the tip of the tail, being up to 5.5 times longer than the carapace. ''Psalidopus huxleyi'' ''P. huxleyi'' occurs on continental and insular slopes across the Indian Ocean, including the Laccadive Sea, off southern India, the Andaman Sea and the Timor Sea, as well as in the western Pacific Ocean from southern Japan to the P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Physetocaris
''Physetocaris'' is a monotypic genus of caridean shrimp, containing a single species, ''Physetocaris microphthalma''. Systematics ''Physetocaris microphthalma'' is placed in its own family (Physetocarididae) and superfamily (Physetocaridoidea). The genus and species were described in 1940 by Fenner A. Chace Jr. Description Adults have no eyes, and are missing the last segment of the first pereiopod, which is therefore unable to form a claw. They also have reduced gills and mouthparts, and no exopods on the pereiopods. The carapace is enlarged, and forms a tall rostrum. Distribution ''P. microphthalma'' is rare, with only 35 specimens counted in a 1985 review. Although very poorly known, the distribution of ''Physetocaris'' appears to be very wide. In addition to specimens from both western and eastern parts of the Atlantic Ocean, it has been found in the southern Pacific Ocean The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It exte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galatheacaridoidea
''Galatheacaris abyssalis'' is a rare species of shrimp, now thought to be a larval stage of another genus, '' Eugonatonotus''. It was described in 1997 on the basis of a single specimen caught in the Celebes Sea at a depth of . It was seen to be so different from previously known shrimp species that a new family, Galatheacarididae, and superfamily, Galatheacaridoidea, were erected for it. Later, more specimens were found in the stomach of a lancetfish, ''Alepisaurus ferox''. The species shares some plesiomorphies with ''Procaris'', and the two taxa were thought to be closely related. Molecular phylogenetic analyses showed that ''Galatheacaris abyssalis'' had such similar mitochondrial DNA to that of ''Eugonatonotus chacei'' that the two must be considered conspecific; it is now thought that ''Galatheacaris'' is the megalopa Crustaceans may pass through a number of larval and immature stages between hatching from their eggs and reaching their adult form. Each of the stages is s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nematocarcinoidea
Nematocarcinoidea is a superfamily of shrimp, comprising four families – Eugonatonotidae, Nematocarcinidae, Rhynchocinetidae and Xiphocarididae. They share the presence of strap-like epipods on at least the first three pairs of pereiopod The decapod (crustaceans such as a crab, lobster, shrimp or prawn) is made up of 20 body segments grouped into two main body parts: the cephalothorax and the pleon (abdomen). Each segment may possess one pair of appendages, although in various g ...s, and a blunt molar process. References External links * * Caridea Taxa named by Sidney Irving Smith Arthropod superfamilies {{Caridea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Axiidea
Axiidea is an infraorder of decapod crustaceans. They are colloquially known as mud shrimp, ghost shrimp, or burrowing shrimp; however, these decapods are only distantly related to true shrimp. Axiidea and Gebiidea are divergent infraoders of the former infraorder Thalassinidea. These infraorders have converged ecologically and morphologically as burrowing forms.Dworschak, Peter C. (2012). ''Treatise on Zoology - Anatomy, Taxonomy, Biology. The Crustacea, Volume 9 Part B''. BRILL. pp. 109–100. . Based on molecular evidence as of 2009, it is now widely believed that these two infraorders represent two distinct lineages separate from one another. Since this is a recent change, much of the literature and research surrounding these infraorders still refers to the Axiidea and Gebiidea in combination as "thalassinidean" for the sake of clarity and reference. This division based on molecular evidence is consistent with the groupings proposed by Robert Gurney in 1938 based on larva ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palaemonidae
Palaemonidae is a family of shrimp in the order Decapoda. Many species are carnivores that eat small invertebrates, and can be found in any aquatic habitat except the deep sea. One significant genus is ''Macrobrachium'', which contains commercially fished species. Others inhabit coral reefs, where they associate with certain invertebrates, such as sponges, cnidarians, mollusks, and echinoderms, as cleaner shrimps, parasites, or commensals. They generally feed on detritus, though some are carnivores and hunt tiny animals. The family contains more than 1200 species in 160 genera. The genera were formerly split into two subfamilies, but in 2015, molecular and morphological research determined that the subfamily groupings were invalid. At the same time, the members of the families Gnathophyllidae and Hymenoceridae were incorporated into the Palaemonidae. Genera The following genera are recognised: *'' Actinimenes'' *'' Alburnia'' *'' Allopontonia'' *'' Altopontonia'' *' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heterocarpus Ensifer
''Heterocarpus ensifer'' is a species of deep-water shrimp. The nominate subspecies is found in the Atlantic Ocean from Spain and Madeira to Angola and from North Carolina to the Gulf of Mexico and Caribbean Sea; other subspecies occur in the Pacific Ocean and around the Philippines and Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sulawesi, and parts of Borneo and New Guine .... Despite being one of the most abundant shrimp in some areas, its biology is still poorly known. These deep water crustaceans are most copious between 300 and 400m. Their distribution demonstrates an ability to adapt well to distinct environments. It is generally found at depths of . References External links * Caridea Crustaceans described in 1881 {{Caridea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrobiologia
''Hydrobiologia'', ''The International Journal of Aquatic Sciences'', is a peer-reviewed scientific journal publishing 21 issues per year, for a total of well over 4000 pages per year. ''Hydrobiologia'' publishes original research, reviews and opinions investigating the biology of freshwater and marine habitats, including the impact of human activities. Coverage includes molecular-, organism-, community -and ecosystem-level studies dealing with biological research in limnology and oceanography, including systematics and aquatic ecology. In addition to hypothesis-driven experimental research, it presents theoretical papers relevant to a broad hydrobiological audience, and collections of papers in special issues covering focused topics. History ''Hydrobiologia'' changed on the appointment of Henri Dumont to be its editor-in-chief. He introduced peer review, and expanded production from 6 issues per year to more than 20 per year. Koen Martens took over the responsibility as editor-in- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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