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 A hyperiid amphipod (Hyperia macrocephala)
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Amphipoda (amphipods) is an order of animals that includes over 7,000 described species of small, shrimp-like crustaceans. Arthropods are Animals belonging to the Phylum Arthropoda (from Greek ἄρθρον arthron, " Joint " Structure of crustaceans As Arthropods crustaceans have a stiff Exoskeleton, which must be shed to allow the animal to grow ( Ecdysis or molting The Malacostraca (Greek "soft shell" are the largest class of Crustaceans and include most of the animals that non-experts recognize as crustaceans including Pierre André Latreille ( November 20, 1762 - February 6, 1833) was a French entomologist. This article is about the taxonomic rank for the sequence of species in a taxonomic list see Taxonomic order In scientific classification used Gammaridea is a Suborder of small Shrimp -like Crustaceans in the order Amphipoda. Corophiidea is a Suborder of Amphipods Hyperiidea is a suborder of Amphipods small aquatic Crustaceans Unlike the other suborders of Amphipoda, hyperiids are exclusively marine and do not Ingolfiellidea is a small Suborder of amphipods with only two families This article is about the taxonomic rank for the sequence of species in a taxonomic list see Taxonomic order In scientific classification used In Biology, a species is one of the basic units of Biological classification and a Taxonomic rank. True shrimp are swimming decapod Crustaceans classified in the Infraorder Caridea, found widely around the world in both fresh Structure of crustaceans As Arthropods crustaceans have a stiff Exoskeleton, which must be shed to allow the animal to grow ( Ecdysis or molting
Most amphipods are marine; although a small number of species are limnic or terrestrial. Marine is an Umbrella term. As an adjective it is usually applicable to things relating to the Sea or Ocean, such as Marine biology, Marine Freshwater is a word that refers to bodies of water such as Ponds lakes rivers and streams containing low concentrations of dissolved Salts and other Total dissolved Terrestrial animals are Animals that live predominantly or entirely on land as compared with Aquatic animals which live predominantly or entirely in the water (e Marine amphipods may be pelagic (living in the water column) or benthic (living on the ocean bottom). Any water in the sea that is not close to the bottom is in the pelagic zone. The benthic zone is the ecological region at the lowest level of a Body of water such as an Ocean or a Lake, including the sediment surface and some sub-surface Pelagic amphipods are eaten by seabirds, fish, and marine mammals. Seabirds are Birds that have adapted to life within the marine environment Terrestrial amphipods such as sand fleas can often be seen amongst sand and pebbles or on beaches.
Distribution and life
Many species of pelagic amphipods are mutualistic or (usually) parasitic, living in association with jellyfish and salps. Mutualism is a Biological interaction between individuals of two different Species, where both individuals derive a fitness benefit for example increased Parasitism is a type of symbiotic relationship between Organisms of different Species. Jellyfish are free-swimming members of the phylum Cnidaria. They have several different basic morphologies that represent several different cnidarian classes including the A salp (plural salps; also salpa, plural salpae or salpas) is a barrel-shaped free-floating Tunicate. Phronima is a relatively common genus of pelagic amphipod that kills and cleans out the barrel-shaped body of a salp to live inside and raise its young. Phronima, the pram bug amphipod, is a small translucent Deep sea hyperiid Amphipod of the family Phronimidae. A salp (plural salps; also salpa, plural salpae or salpas) is a barrel-shaped free-floating Tunicate.
Of the relatively few species of free-living, planktonic amphipods, the most abundant of all is Themisto gaudichaudii. Plankton consist of any drifting Organisms ( Animals Plants Archaea, or Bacteria) that inhabit the Pelagic zone of Themisto gaudichaudii is an Amphipod of the Suborder Hyperiidea. Living in the Southern Ocean, this amphipod congregates in dense swarms, where it is a voracious predator of copepods and other small members of the zooplankton. The Southern Ocean, also known as the Great Southern Ocean, the Antarctic Ocean and the South Polar Ocean, comprises the southernmost waters of Copepods are a group of small Crustaceans found in the sea and nearly every freshwater habitat and they constitute the biggest source of protein in the oceans Zooplankton are the Heterotrophic (sometimes detritivorous) type of Plankton.
After copepods, krill and salps, which are mostly herbivorous, the carnivorous Themisto is the most abundant member of the mesozooplankton in the Southern Ocean. Copepods are a group of small Crustaceans found in the sea and nearly every freshwater habitat and they constitute the biggest source of protein in the oceans Krill are a type of Shrimp -like marine Invertebrate animal These small Crustaceans are important organisms of the Zooplankton, particularly A salp (plural salps; also salpa, plural salpae or salpas) is a barrel-shaped free-floating Tunicate. Herbivory is a form of Predation in which an Organism, known as a herbivore, consumes principally Autotrophs ref name=Campbell>Campbell A carnivore (ˈkɑrnɪvɔər meaning 'meat eater' ( Latin carne meaning 'flesh' and vorare meaning 'to devour' is any animal with a diet consisting The Southern Ocean, also known as the Great Southern Ocean, the Antarctic Ocean and the South Polar Ocean, comprises the southernmost waters of
In cold seas, benthic amphipods are enormously diverse and abundant. In the Southern Ocean, amphipods are the most abundant benthic crustaceans. The Southern Ocean, also known as the Great Southern Ocean, the Antarctic Ocean and the South Polar Ocean, comprises the southernmost waters of Some are grazers, many are omnivorous, some even act as piranha-like scavengers, quickly cleaning the carcasses of dead tissue. Omnivores (from Latin omne all everything vorare to devour are species that eat both Plants and Animals as their primary A piranha or piraña (pɨˈrɑːnjə/ /pɨˈrænjə/ /pɨˈrɑːnə or /pɨˈrænə/ is a member of a family of Omnivorous Freshwater Fish Amphipods are one of the few animal groups frequently seen when submarines venture to the deepest parts of the oceans. A submarine is a Watercraft that can operate independently below water as distinct from a Submersible that has only limited underwater capability Other benthic amphipods are the primary food of Gray Whales. The Gray Whale or Grey Whale ( Eschrichtius robustus) is a Whale that travels between feeding and breeding grounds yearly Certain species of pelagic amphipods make vertical migrations diurnally.
A ship hull fouling species of amphipod common to Atlantic and estuarine waters is Jassa falcata. Description Jassa falcata, commonly known as scud, is a tube-dwelling amphipod in the Genus Jassa.
External links
- Amphipoda page at www.crustacea.net includes a list of families
- The Amphipod Home Page
- A database of amphipod literature
 A gammarid amphipod |
 A gammarid amphipod |
 A caprellid amphipod |
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