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Topic: Fairy shrimp


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In the News (Mon 28 Dec 09)

  
  Fairy shrimp - Wikipedia, the free encyclopedia
Fairy shrimp (Anostraca) are branchiopods that include brine shrimp.
The vernal pool fairy shrimp (Branchinecta lynchi) was thought to exist only in California until a population was discovered in the Agate Desert area of Oregon in 1998.
The giant fairy shrimp (Branchinecta gigas) is the largest and is found in the playas of California's southern deserts.
en.wikipedia.org /wiki/Fairy_shrimp   (281 words)

  
 Fairy Shrimp
Fairy shrimp are small crustaceans restricted to vernal pools and are widely distributed throughout the United States.
Adult fairy shrimp may persist into the summer but are usually hard to find after May. Fairy shrimp usually have one generation per wet episode.
Studies in Maine were not able to explain why fairy shrimp are found in some pools and not in others.
www.umaine.edu /wetlands/VPfairyshrimp.htm   (342 words)

  
 Fairy Shrimp
Because coloration is determined by the contents of the food supply in the pool which the shrimp inhabit, it is usually constant among the individuals of the pool.
Fairy shrimp reproduction is initiated when the male clasps the female with its second, clasping antennae.
Fairy shrimp have been observed gnawing on larger matter such as dead tadpoles, mollusks and amphibian eggs.
www.vernalpool.org /inf_fs.htm   (968 words)

  
 Final Designation of Critical Habitat for the Riverside Fairy Shrimp
Fairy shrimp egg banks in the soil may be composed of the eggs from several years of breeding (Donald 1983; Simovich and Hathaway 1997).
Riverside fairy shrimp cysts were first collected east of Pershing Drive in 1997, but adult shrimp have not been found to date, likely due to the extensive disturbance to the landscape, including the introduction of fill material, changes in water chemistry, modification of the watersheds, and the resulting shortened duration of water ponding.
The proposed determination of critical habitat for the Riverside fairy shrimp (65 FR 57136) identified approximately 4,880 ha (12,060 ac) of vernal pools and their adjacent watersheds essential to the conservation of the species that was proposed as critical habitat.
www.wminteractive.org /Articles/fr5-30.htm   (15206 words)

  
 Critical Habitat Listing for the Riverside Fairy Shrimp
Fairy shrimp form an important food source for an array of aquatic and terrestrial species, from diving beetles, backswimmers (Notonectids), vernal pool tadpole shrimp (Branchinecta species), predaceous aquatic insects and their larvae, to waterfowl and shorebirds, and occasionally even for frogs, toads, and tadpoles (Eriksen and Belk 1999).
Therefore, Riverside fairy shrimp, together with its cohabitating vernal pool flora and fauna, is as dependent upon the upland areas for survival and reproduction as it is upon the pool it occupies.
The Riverside fairy shrimp populations in these areas, particularly those on Department of Defense land, are not protected and are either being lost at present, or vulnerable to loss due to a number of sources and activities, including military maneuvers, crushing by vehicles and toxic poisoning from vehicles or ordnances.
www.animallaw.info /administrative/adusfd70fr19154.htm   (14253 words)

  
 Fairy shrimp - Chirocephalus diaphanus: More Information - ARKive
The fairy shrimp is a beautiful, translucent crustacean, which lacks a carapace, and is considered to be rather primitive as it has a relatively large number of segments and the legs are not specialised (5).
In the early 20th century, the fairy shrimp was known from common land in Buckinghamshire and Hertfordshire, but the decline of traditional grazing on the commons has eliminated suitable habitat through conversion to scrub and woodland (3).
The fairy shrimp is fully protected in the UK under Schedule 5 of the Wildlife and Countryside Act 1981 and listed as a Species of Conservation Concern under the UK Biodiversity Action Plan, although not a priority species (2).
www.arkive.org /species/ARK/invertebrates_terrestrial_and_freshwater/Chirocephalus_diaphanus/more_info.html   (709 words)

  
 Midvalley Fairy Shrimp, Branchinecta mesovallensis
Adult males of the species most closely resemble male Conservancy fairy shrimp, in that their antennae are relatively smooth and consist of two jointed segments of approximately equal length, the second of which bends inward about 90° at the tip.
Midvalley fairy shrimp populations survive the seasonal drying of their ponds by laying eggs encased in nearly impervious shells.
Determination of endangered status for the Conservancy fairy shrimp, longhorn fairy shrimp, and the vernal pool tadpole shrimp; and threatened status for the vernal pool fairy shrimp.
www.fws.gov /sacramento/es/animal_spp_acct/midvalley.htm   (1522 words)

  
 Species Profile   (Site not responding. Last check: 2007-11-04)
Conservancy fairy shrimp live in ephemeral or temporary pools of fresh water (vernal pools) that form in the cool, wet months of the year.
Fairy shrimp are not known to occur in permanent bodies of water, and are dependent upon seasonal fluctuations in their habitat, such as absence or presence of water during specific times of the year.
Conservancy fairy shrimp are known from six disjunct populations in California: Vina Plains, Tehama County; south of Chico, Butte County; Jepson Prairie, Solano County; Sacramento National Wildlife Refuge, Glenn County; near Haystack Mountain northeast of Merced, Merced County; and the Lockewood Valley, northern Ventura County.
esrpweb.csustan.edu /speciesprofiles/profile.php?sp=brco   (455 words)

  
 Vernal Pool Fairy Shrimp
The fairy shrimp may also be dispersed by animals that ingest the eggs, since the tough egg-coats protect the embryos from being digested.
Fairy shrimp swim on their backs, feeding on small particles of detritus, algal cells and bacteria by scraping vegetation or other surfaces with their legs, or filtering the surrounding waters.
Vernal pool fairy shrimp are threatened by continued human efforts to drain and fill vernal pool watersheds for agriculture and development purposes.
www.pacificbio.org /ESIN/OtherInvertebrates/VernalPoolFairyShrimp/VernalFairyShrimp_pg.html   (303 words)

  
 Mather Field Vernal Pools - Fairy Shrimp
Fairy Shrimp suck water through filters and eat the particles that they strain out of the water.
Fairy Shrimp are a main food source for many creatures.
They are eaten by Tadpole Shrimp, Backswimmers, aquatic beetles, aquatic insect larvae, tadpoles, toads, salamanders, Killdeer, and ducks.
www.sacsplash.org /critters/fairyshr.htm   (416 words)

  
 California Fairy Shrimp, Linderiella occidentalis
These include the threatened vernal pool fairy shrimp, which is often found in the same pools.
California fairy shrimp are smaller than ones in the Branchinecta family and have distinctive red eyes.
California fairy shrimp tend to live in large, fairly clear vernal pools and lakes.
www.fws.gov /sacramento/es/animal_spp_acct/linderiella.htm   (962 words)

  
 fairy shrimp on Encyclopedia.com   (Site not responding. Last check: 2007-11-04)
Rare fairy shrimp discovered near UC Merced lands.
The U.S. Supreme Court upheld Endangered Species Act protections for the fairy shrimp and two other tiny freshwater crustaceans by refusing to hear a case brought by developers who challenged the law's reach.
Final Frontier Environmental concerns, including the fairy shrimp that live in natural vernal pools on the site near Merced, are among the issues looming over the UC campus project.(MAIN NEWS)
www.encyclopedia.com /html/X/X-fairyshr.asp   (346 words)

  
 The Seattle Times: Nation & World: Biologists discover new species of fairy shrimp in desert south of Boise
That is huge for a fairy shrimp," biologist Dana Quinney said Tuesday during a news conference announcing the discovery.
The belly of the shrimp is covered with patches of Velcro-like spikes, enabling it to stick to and store up to four smaller fairy shrimp of different species — its prey.
Fairy shrimp are mostly made up of feathery legs and antennae.
seattletimes.nwsource.com /html/nationworld/2002209259_webdiscovery16.html   (770 words)

  
 LiveScience.com - Large Relative of 'Sea-Monkey' Found in Idaho   (Site not responding. Last check: 2007-11-04)
Fairy shrimp are relatives of brine shrimp, which since 1960 have been marketed as Sea-Monkeys to children and said to "magically" come alive when mixed with water.
That is huge for a fairy shrimp,'' biologist Dana Quinney said Tuesday during a press conference announcing the discovery.
The belly of the shrimp is covered with patches of Velcro-like spikes, enabling it to stick to and store up to four smaller fairy shrimp of different species -- its prey.
www.livescience.com /animalworld/ap_050316_shrimp.html   (994 words)

  
 The tadpole shrimp and fairy shrimp; two rare British crustaceans but available in all good toyshops!
The author has never seen the tadpole shrimp and fairy shrimp in the wild because they are both rare in Britain.
Rearing the brine shrimp (Artemia) is very popular as an educational kit, but kits to rear the tadpole shrimp (and indirectly the fairy shrimp) are also widely available.
in 1904, states that fairy shrimp eggs although very small can be seen by the naked eye and are "covered very thickly with 'sharp spines'".
www.microscopy-uk.org.uk /mag/artjul00/dwtriops.html   (2175 words)

  
 Fairy Shrimp
The young shrimp swim upside down in the pools, filter feeding on algae and zooplankton, using their many legs.
Population declines were due primarily to habitat loss from agricultural and urban development, alteration of wetland hydrology by draining, off-road vehicle activity, cattle grazing, and replacement by other fairy shrimp species that are habitat generalists.
Furthermore, the primary goal in the recovery of the fairy shrimp is to secure existing vernal pools and their watersheds from further loss and degradation in a configuration that maintains habitat function and species viability.
www.sweetwater.org /habitat/fairy_shrimp.html   (226 words)

  
 Midvalley Fairy Shrimp, (Branchinecta mesovallensis)   (Site not responding. Last check: 2007-11-04)
The Midvalley Fairy Shrimp is a small, soft-bodied crustacean that lives in vernal pools, seasonal wetlands that fill with water during fall and winter rains.
Fairy shrimps swim upside down with graceful, rhythmic beats of their eleven pairs of delicate legs.
Fairy shrimp cysts fall to the bottom of the pool where they withstand the hot, dry summers of California's grasslands.
www.biologicaldiversity.org /swcbd/species/fshrimp/mvfs.html   (407 words)

  
 fairy shrimp
The fairy shrimp is a tiny crustacean that lives in depressions in...
Fairy shrimp embryos are protected throughout the dry...
The Conservancy fairy shrimp (Branchinecta conservatio), is a small crustacean in the Branchinectidae family...
www.shrimp-1st.com /shrimp/12/fairy-shrimp.html   (570 words)

  
 CBD - Letterhead   (Site not responding. Last check: 2007-11-04)
Fairy shrimps are crustaceans that live in vernal pools, seasonal wetlands that fill with water during fall and winter rains.
Fairy shrimp cysts (encysted embryos) fall to the bottom of the pool where they withstand the hot, dry summers of California's grasslands.
One of the greatest threats to the Midvalley Fairy Shrimp is the University of California's plans to build a new campus and city on one of the largest remaining vernal pool mosaics in the state.
www.biologicaldiversity.org /swcbd/press/mvfshrimp.html   (801 words)

  
 fairy pool shrimp vernal
Vernal pool fairy shrimp (Branchinecta lynchi) (Eng, Belk, and Eriksen 1990) is endemic to California...
Fairy shrimp are small (about 1 inch) crustaceans which spend their entire lives (a few weeks) in a vernal pool.
Fairy Shrimp, Longhorn Fairy Shrimp, Riverside Fairy Shrimp, Vernal Pool Tadpole Shrimp, and the Threatened Vernal Pool Fairy Shrimp...
www.shrimp-1st.com /shrimp/12/fairy-pool-shrimp-vernal.html   (600 words)

  
 Fairy shrimp: Facts and details from Encyclopedia Topic   (Site not responding. Last check: 2007-11-04)
Fairy shrimp (Anostraca) are branchiopods[Follow this hyperlink for a summary of this subject], EHandler: no quick summary.
Brine shrimp (artemia) are a primitive type of aquatic crustacean....
The vernal pool fairy shrimp (Branchinecta lynchi) was thought to exist only in California California quick summary:
www.absoluteastronomy.com /encyclopedia/F/Fa/Fairy_shrimp.htm   (454 words)

  
 Oregon - Fairy Shrimp Found on Southern Oregon Preserves
Researchers have discovered a population of vernal pool fairy shrimp (Branchinecta lynchi) on The Nature Conservancy's Agate Desert and Whetstone Savanna Preserves and on nearby Bureau of Land Management land atop the Table Rocks.
The vernal pool fairy shrimp is a 3/4-inch, translucent crustacean with a one-year life cycle and a unique survival strategy.
The fairy shrimp was discovered by Southern Oregon University biologist Michael Parker and his students, who were conducting invertebrate surveys for the Oregon Natural Heritage Program.
nature.org /wherewework/northamerica/states/oregon/preserves/art11731.html   (376 words)

  
 Fairy Shrimp Resources   (Site not responding. Last check: 2007-11-04)
Fairy shrimp are small crustaceans restricted to vernal pools and are widely distributed...
Fairy shrimp are not known to occur in...
The riverside fairy shrimp is a freshwater crustacean that...
www.amazingfairies.info /fairy-shrimp   (1746 words)

  
 Plight of tiny fairy shrimp is a symbol of crisis | The San Diego Union-Tribune
Plight of tiny fairy shrimp is a symbol of crisis
The endangered Riverside fairy shrimp, like scores of other species nationwide, is the subject of dueling lawsuits lodged by environmentalists and developers.
The case of the fairy shrimp, which lives in vernal pools that dot Southern California after the rainy season, is a classic example of how the situation unfolds.
www.signonsandiego.com /uniontrib/20050521/news_1n21habitat.html   (1278 words)

  
 Fairy shrimp - Chirocephalus diaphanus - ARKive
The fairy shrimp is a beautiful, translucent crustacean, which lacks a carapace, and is considered to be rather primitive as it has a relatively large number of segments and the legs are not specialised.
The body is elongated, and bears 11 pairs of legs fringed with bristles; the head curves downwards, and in males the second pair of antennae are modified 'claspers' for grabbing females during mating.
Fairy shrimps swim around on their backs, propelled by the constantly moving legs.
www.arkive.org /species/ARK/invertebrates_terrestrial_and_freshwater/Chirocephalus_diaphanus?size=large   (161 words)

  
 Fairy Shrimp Pictures   (Site not responding. Last check: 2007-11-04)
Given that many people cannot find the shrimp by themselves, and even have difficulty seeing them when someone is pointing out the moving fairy shrimp, I would have said it was probably impossible.
This shrimp had a vivid clear color, one I did not note at the time since I was so shocked at the time by its appearance.
The bottom set of pictures show the head of the shrimp at upper left, a fuzzy gray-whitish portion that is the legs and main body of the shrimp, and the bright white egg sac followed by the rest of its tail.
tchester.org /srp/vp/fs_pix.html   (647 words)

  
 Berkshire Taconic :: Diversity of life
The second type is laid at the end of the shrimp's growth period and will dry up with the vernal pool, lie dormant, and then hatch after spring rains flood the pool again.
However, many species of fairy shrimp across the United States are endangered due to the loss of the vernal pools upon which they are dependent.
The rapid development of adult fairy shrimp and the timing of reproduction makes them present in the pool when few predators are present.
www.lastgreatplaces.org /berkshire/diversity/spc053.html   (293 words)

  
 Opinion - This fairy (shrimp) tale could come true
Here in Orange County, the fairy shrimp is one of the more prominent critters whose "preservation" has bedeviled property owners trying to build houses.
Fairy shrimp eggs have withstood up to 210 degrees F and 310 degrees below zero.
By creating a market demand for fairy shrimp, we ensure their survival — and create wealth for fairy-shrimp entrepreneurs.
www.ocregister.com /ocregister/opinion/abox/article_887911.php   (790 words)

  
 Vol. FY00, No. 2: Fairy Shrimp Critical Habitat
The critical habitat is within an approximately 14,771-hectare (36,501-acre) area for the San Diego fairy shrimp in San Diego and Orange Counties.
All of the proposed critical habitat areas are considered essential to the conservation of the San Diego fairy shrimp as described in the Recovery Plan for Vernal Pools of Southern California (Fish and Wildlife Service, 1998) (available from MESO; 10.2 MB Adobe™ Acrobat™ file).
The proposed critical habitat units include a mosaic of vernal pools currently supporting San Diego fairy shrimp, as well as areas that historically supported vernal pools and are still capable of supporting this species.
meso.spawar.navy.mil /Newsltr/Fy00/No_2/fairyshrimp.html   (1059 words)

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