brine shrimp

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brine shrimp,

common name for a primitive crustaceancrustacean
, primarily aquatic arthropod of the subphylum Crustacea. Most of the 44,000 crustacean species are marine, but there are many freshwater forms. The few groups that inhabit terrestrial areas have not been particularly successful in an evolutionary sense; most require
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 that seldom reaches more than 1-2 in. (1.3 cm) in length and is commonly used for fish food in aquariums. Brine shrimp, which are not closely related to true shrimp, can be found almost everywhere in the world in inland saltwaters, although they are completely absent from oceans. They can live in water having several times the salinity of seawater, but they can also tolerate water having only one tenth the marine salt concentration. Brine shrimp usually occur in huge numbers and can be seen in vast windblown lines in the Great Salt Lake. Their absence from the sea has been explained by their vulnerability to attack by predators and the absence of the latter in their inland saline habitat. Although brine shrimp are considered to be members of a single genus, Artemis, and possibly a single species, there are several varieties. Generally, they have stalked, compound eyes and tapered bodies with a trunk that bears 11 pairs of leaflike legs. Females have a brood pouch from which active young are liberated under favorable conditions. Otherwise eggs are laid parthenogenetically (unfertilized by sperm) or fertilized and can either hatch immediately or be dried and remain viable for many years. These eggs are remarkably resistant to adverse environmental conditions, which is why they can be hatched so easily in saltwater and used for fish food; adult brine shrimp are also used as food in aquariums and are generally sold frozen. Brine shrimp are classified in the phylum ArthropodaArthropoda
[Gr.,=jointed feet], largest and most diverse animal phylum. The arthropods include crustaceans, insects, centipedes, millipedes, spiders, scorpions, and the extinct trilobites.
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, subphylum Crustacea, class Branchiopoda, order Anostraca.
References in periodicals archive ?
Then, the mortality of the Artemia salina was evaluated using a probit analysis [16] which was based on the dose-response curves to determine the [LC.
The marine crustacean Artemia is ideally suited as a bioassay organism for detecting toxicity in plant extracts (Lewis, 1995).
In this study, Artemia salina larvae were used to test toxicity and uptake of TiO2 NPs (10-30 nm).
With its newly-attained ISO 9001 and TL 9000 qualifications, ARTEMIA Communications joins many organizations worldwide that have committed to continual improvement of business processes, quality control, and client/customer service.
The following critical periods were noted when first observed: 1) hatching; 2) mouth formation; 3) body pigmentation; 4) eye formation and pigmentation; 5) stomach and digestive tract formation; 6) first feeding; 7) yolk exhaustion; 8) oil globule exhaustion; 9) diet transition from rotifers to Artemia spp.
McLaughlin (1991) has reported that the results obtained with Artemia salina are quantitative and reproducible, and the activities parallel cytotoxicities.
Well as a hard skin called Artemia Urmia (prawns of saline water) lives on Lake Urmia that is fishing and currently being exported to foreign countries.
Proceeding of the international symposium on brine shrimp; Artemia salina; University press, Belgium, pp: 1-3.
All-natural and powerful ingredients include: peptides, sodium hyaluronate, artemia extract, squaline, jojoba oil, green tea, and vitamin c.
Rolled out in March, the formulation also includes artemia and micrococcus lysate extract, which support skin's natural structure, and Yeast Extract Max, a potent yeast ferment that improves collagen synthesis.