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Topic: Opossum shrimp

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  NR615 Creating Web Site Templet
Although the opossum shrimp is an important source of prey for freshwater fish in its native range, it does not have a similar effect on the aquatic community it is non-native to.
The opossum shrimp feed on zooplankton when available; thus, changes and extinctions of native zooplankton communities in the United States have been attributed to the introduction of this mysid (Source from the USGS Page, 2001).
Flathead Lake in Montana is experiencing algae blooms because of a decline in the populations of algae-eating zooplankton in the lake.
www.ag.ohio-state.edu /~exotic/nr615au01/fetzer/format.htm   (761 words)

  Opossum shrimp - Wikipedia, the free encyclopedia
The Opossum shrimp (Neomysis americana) is regarded as the premier shrimp in the Chesapeake Bay.
This shrimp is tiny, averaging 1.5 to 3 cm in length with exceptional specimens growing to 3.5 cm in length.
The opossum shrimp does not have gills; its split feet serve as its means of respiration and locomotion.
en.wikipedia.org /wiki/Opossum_shrimp   (297 words)

 European Opossum Shrimp   (Site not responding. Last check: 2007-11-03)
The body of these shrimp is translucent greenish or yellowish with dark streaks and a pink tail.
Opossum shrimp, also known as mysids, are not true shrimp.
The European opossum shrimp arrived by ballast water, and were first discovered on Cape Cod in 1960.
omp.gso.uri.edu /doee/biota/invasive/7.htm   (82 words)

 The University of Maine - News - April 27, 2006 - Tiny Shrimp Help to Fine-Tune National Defense
So far, Jumars' research has revealed some exciting data about the biology and ecological importance of the fast-moving shrimp, which are a major source of food for small cod and other fishes.
The research is proving important for national defense purposes as well, since the movements of large numbers of opossum shrimp and other small organisms can interfere with the military's use of sonar for detecting and identifying underwater mines.
This is definitely not a small problem when it comes to using acoustics for local area search, and the shrimp are certainly something cod care about.
www.umaine.edu /news/article.asp?id_no=1336   (219 words)

 opossum shrimp
The opossum shrimp, called so because of the marsupial-like pouch in which they carry their young, resembles a small crayfish.
Opossum shrimp - Mysida (=Mysidacida) Scientific name: Mysis is Greek and means to close one´s eyes or mouth.
On the biology of the opossum shrimp, Mysis relicta Loven, and its...
www.shrimp-1st.com /shrimp/21/opossum-shrimp.html   (462 words)

 Mysidacea - Wikipedia, the free encyclopedia
The Mysidacea is a group of small, shrimp-like creatures including the species Neomysis americana (opossum shrimp), comprising the two related orders Mysida and Lophogastrida.
They are sometimes referred to as opossum shrimps, though that name is also used for individual species.
Note that despite their name, and their superficial resemblance to shrimp, they are only quite distantly related to the true shrimps, which are classified in the order Decapoda.
en.wikipedia.org /wiki/Mysid_shrimp   (176 words)

According to the latest estimates, 46% of the population is Mestizo (mixed White and Maya); nearly 28% is Creole (of African descent); another 10% is Maya; 6% is Garifuna (Carib); and nearly 10% is comprised of various other groups, including those of Arab, European, Chinese, Asian Indian, North American, and Syrian-Lebanese ancestry.
In the mid-1990s, shrimp production increased by 75% as a result of three new shrimp farms opening in 1992.
Whiteleg shrimp and spiny lobster are the leading species by volume.
www.nationsencyclopedia.com /Americas/Belize.html   (631 words)

Fertilized eggs are brooded in the marsupium and are released as juveniles.
The shrimp use the snapping sound to deter predators, to stun prey, and even to communicate with other shrimp.
By tethering shrimp to a platform, training a fast-frame camera on them, listening in with a highly sensitive hydrophone, and then tickling the snapper shrimp's claw to elicit a snap, they got an extremely detailed picture of what really happens.
www.fiu.edu /~goldberg/coralreefs/CRUSTACEA.htm   (3572 words)

Our male opossum came to CNC in the late summer of 2003 at a very young age.
She was taken from the wild as a baby and held illegally as a pet and then surrendered.
She was fed an improper diet and has acquired a bone disease not allowing her to return to the wild.
www.chattanature.org /opossum.htm   (167 words)

 7/21/97   (Site not responding. Last check: 2007-11-03)
The opossum shrimp were intended to provide feed for the kokanee salmon in Whitefish and Swan Lakes.
As those opossum shrimp continue to gobble up the zooplankton that once fed the kokanee, the larger zooplankton that fed on the algae and helped keep the lake algae population under control, are disappearing too.
This arrogant assumption is what led to the introduction of the opossum shrimp into the Flathead watershed.
www.umt.edu /econ/Power/kufm/1997/072197.htm   (816 words)

 seahorse.org - Raising Mysid Shrimp as a Home Aquarium Food
Various species of Mysid shrimp, also known as opossum shrimp, have been collected or cultured as a live food for aquatic animals which prefer living foods, such as seadragons, seahorses and pipefish.
Some degree of caution may be in order as these butterflyfish attacked the Mysids with such ferocity that their snouts became bruised from repeatedly hitting the tank walls and bottom as they captured the shrimp.
My recommendation is that aquarists first "learn the ropes" by closely following the original culture method as outlined above, and then as their experience level warrants, begin using the net separation technique on some of the brood tanks (but not all of them).
www.seahorse.org /library/articles/mysisCulturing.shtml   (1559 words)

 Search Results for "Opossum"
opossum, (pos´m, pos´-) (KEY), name for several marsupials, or pouched mammals, of the family Didelphidae, native to Central and South America, with one species...
...An aquatic opossum (Chironectes minimus) of tropical America, having dense fur, webbed hind feet, and a long tail.
We find opossum, for example, in the form of opasum, in Captain John Smith s Map of Virginia...
www.bartleby.com /cgi-bin/texis/webinator/sitesearch?FILTER=&query=Opossum   (269 words)

 ScienceDaily: Shrimp studied for the Defense Department
Loudest of all are the colonies of snapping shrimp, whose underwater cacophony is the bane of...
New Invasive Parasite Raises Concern For West Coast Estuaries (August 22, 2005) -- Scientists have identified a prolific parasite that preys on mud shrimp - a native species of West Coast estuaries - and threatens to decimate mud shrimp populations, raising concern for the fragile,...
Shrimp -- True shrimp are small, swimming, decapod crustaceans classified in the infraorder Caridea, found widely around the world in both fresh and salt water.
www.sciencedaily.com /upi/index.php?feed=Science&article=UPI-1-20060510-21263300-bc-us-shrimp.xml   (1695 words)

 NewsDaily: Science -- Shrimp studied for the Defense Department
He is seeking to establish reliable techniques for monitoring the movements of opossum shrimp as they conduct their daily round-trip migrations from the shelter of the ocean floor to the waters above.
So far, Jumars says he's found some exciting data about the biology and ecological importance of the fast-moving shrimp, as well as important facts about the shrimp that involve national defense.
He explained the movements of large numbers of opossum shrimp and other small organisms can interfere with the military's use of sonar for detecting and identifying underwater mines.
www.newsdaily.com /Science/UPI-1-20060510-21263300-bc-us-shrimp.xml   (368 words)

 Reed Mariculture - Mysid Shrimp - Live
Mysid shrimp are an excellent feed for sea horses and leafy seadragons, as well as fish.
For 1000 shrimp a tank of 80 gallons or more would be good, but most important is surface area since they live predominantly at the bottom.
Mysid shrimp are very cannibalistic so if they are not fed every day they will consume each other.
reed-mariculture.com /zooplankton/mysidshrimp/mysidopsisbahia.asp   (527 words)

The Mysis Relicta Shrimp, also known as Opossum Shrimp, is a freshwater shrimp found in deep, cold lakes and is common to the Great Lakes.
It is a primary food source for salmon, steelhead, trout, smelt, alewife, sculpins, and many other fish with guesstimates running as high as 70 percent of their food intake.
During their lifespan, the shrimp typically go through four instars, or molting periods, when they discard their casings.
www.members.shaw.ca /amuir/mysis.htm   (284 words)

 mysid shrimp - HighBeam Encyclopedia   (Site not responding. Last check: 2007-11-03)
Find newspaper and magazine articles plus images and maps related to "mysid shrimp" at HighBeam.
Retinal anatomy of a new species of bresiliid shrimp from a hydrothermal vent field on the Mid-Atlantic Ridge.
Role of maxilla 2 and its setae during feeding in the shrimp Palaemon adspersus (crustacea: decapoda).
www.encyclopedia.com /html/X/X-mysidshr.asp   (223 words)

 PAG-XIV (P113) Development Of Microsatellite Markers In An Estuarine Opossum Shrimp, Americamysis bahia (Crustacea: ...   (Site not responding. Last check: 2007-11-03)
PAG-XIV (P113) Development Of Microsatellite Markers In An Estuarine Opossum Shrimp, Americamysis bahia (Crustacea: Mysida)
Development Of Microsatellite Markers In An Estuarine Opossum Shrimp, Americamysis bahia (Crustacea: Mysida)
Herein, we report microsatellite sequences from A. bahia that may be useful in characterizing populations along the N. American Gulf and Mexican coasts.
www.intl-pag.org /14/abstracts/PAG14_P113.html   (171 words)

 Venice High School   (Site not responding. Last check: 2007-11-03)
On a side note, the brine shrimp were basically unaffected by the formula and continued to live and grow.
There was basically close to 100 % survival rate with the opossum shrimp exposed to the formula at these concentration levels.
Although we can and have observed the Silversides and opossum shrimp for periods of time longer than 3-4 days, other variables can enter the experiment after that period of time because students are not in school on weekends to observe the organisms and make counts.
www.sarasota.k12.fl.us /vhs/science/redtide   (4145 words)

 This Week in California Wild   (Site not responding. Last check: 2007-11-03)
Diporeia, fingernail clams, the opossum shrimp and some important worms are fast disappearing; the prime suspect in shallow water is the zebra mussel.
Diporeia and fingernail clams are staple foods for forage fish such as the sculpin and bloater, which are in turn important prey for salmon and trout.
Until recently deep water has protected opossum shrimp, but now the quagga mussel, which likes deep water, is spreading rapidly across the lakes as ocean-going ships from abroad dump their ballast water.
www.calacademy.org /thisweek/archive/2004/20041026.html   (835 words)

 Bay Water Quality - The Green Gate from NRDC
But what information has been gathered -- including tests showing that the water is sometimes toxic enough to kill shrimp and small fish -- suggests that contamination threatens the estuary's health.
Testers evaluated the water's toxicity by observing its effect on juvenile opossum shrimp and inland silverside fish.
Scientists believe that runoff and pesticides (from agricultural discharges) are the major sources of the toxicity found in these tests.
www.nrdc.org /greengate/water/bayf.asp   (379 words)

 Opossum Shrimp - A liflike shrimp imintation for sea trout - Global FlyFisher
Shrimp make an important part of the sea trout's menu.
Many times you can observe shrimp in the water - especially over sand bottom, where their almost translucent body only leaves a faint shadow and maybe a small trail of dust as they escape in a jerk.
This pattern tries to catch some of the characteristics of the shrimp: the light transparent body, the segmentation, the almost invisible antennae and the extremely visible fl eyes.
globalflyfisher.com /patterns/opossum_shrimp.htm   (765 words)

 Online Dictionary for French English, Spanish English, Italian English, and more.
shrimps Small slender-bodied chiefly marine decapod crustaceans with a long tail and single pair of pincers; many species are edible.
[sh]rimp> Shrimp-like crustaceans whose females carry eggs and young in a pouch between the legs.
Shrimp in Newburg sauce usually served in a rice ring.
www.ultralingua.com /onlinedictionary/?service=ee&text=shrimp   (268 words)

 Mysis Shrimp   (Site not responding. Last check: 2007-11-03)
The Mysis Relicta Shrimp, also known as Opossum Shrimp, is a freshwater shrimp.
It is a primary food source for salmon, steelhead, trout, smelt, alewife, sculpins, and many other fish.
Mysis shrimp are arthropods which has a segmented shell-like exoskeleton that is shed several times to allow growth (usually 4 times in a life span).
www.flytyingworld.com /PagesS/sg-mysis_shrimp.htm   (166 words)

 Invertebrates in the Olympic Coast National Marine Sanctuary
Invertebrates living on or under boulders and cobbles include barnacles, limpets, amphipods, isopods, sea snails (Lacuna and Tegula), several species of crabs, the sea squirt Clavelina, and various species of edible clams (butter clams, littleneck clams, and horse clams).
Squid, octopi, jellyfish, salps, heteropods, shrimp, and euphausiids are some of the macro-invertebrates found in the pelagic environment.
Pacific oyster, Dungeness crab, and ocean pink shrimp landings from the areas under consideration for sanctuary status had combined landed values in 1987-88 of over $25 million (about 85% of the statewide totals for harvests off Washington) (WDF, 1987; NMFS, 1989).
www.ocnms.nos.noaa.gov /living/marine_wildlife/invertebrates/welcome.html   (569 words)

 Shrimp - definition from Biology-Online.org   (Site not responding. Last check: 2007-11-03)
In a more general sense, any species of the macruran tribe Caridea, or any species of the order schizopoda, having a similar form.
In a loose sense, any small crustacean, including some amphipods and even certain entomostracans; as, the fairy shrimp, and brine shrimp.
Shrimp net, a dredge net fixed upon a pole, or a sweep net dragged over the fishing ground.
www.biology-online.org /dictionary/Shrimp   (183 words)

 shrimp facts - 1st shrimp   (Site not responding. Last check: 2007-11-03)
Stir in shrimp and lemon juice; cook until heated through, stirring often.
My hypothesis is that the growth of the brine shrimp will be positively affected by … I think that the brine shrimp will grow larger in higher salinities.
In fact, it is most unlikely any of these shrimp will live longer than one year.
shrimp.dosomsin.info /dir10/shrimp-facts.html   (422 words)

The main interaction between kokanee salmon and opossum shrimp in Flathead Lake, Montana, is interspecific competition.
What was the effect of the introduction of opossum shrimp to Flathead Lake, Montana on the populations of grizzly bears and bald eagles that surrounded the lake?
Clearly explain why introduction of opossum shrimp had this effect on grizzly bears and bald eagles.
www.utm.edu /departments/cens/biology/rirwin/120/B120SpInrxnSucc.htm   (612 words)

 Freshwater Ecology
A freshwater shrimp (Dikerogammarus villosus), native to the River Danube, is currently invading western Europe.
The opossum shrimp (Mysis relicta), a favourite food of fish, threatened by pollution and introduced species.
This species is sensitive to reduced water quality and susceptible to predation by an introduced American shrimp (Gammarus tigrinus), we are investigating the behaviour and ecology of this species in Lough Neagh and Lough Erne.
www.qub.ac.uk /envres/EarthAirWater/freshwater_ecology.htm   (421 words)

 Nonindigenous Crustaceans
The opossum shrimp, Mysis relicta, was first introduced into Kootenay Lake, British Columbia, in 1949 and was widely stocked as a forage food for sport fish in the West.
Dramatic changes in native zooplankton communities, including species extinctions, have been observed after opossum shrimp were introduced.
After the introduction of the opossum shrimp into Flathead Lake, Montana, Daphnia longiremis and Leptodora kindti were reduced to undetectable levels while Diaptomus ashlandi declined more than 75% from previous levels.
nas.er.usgs.gov /taxgroup/Crustaceans   (169 words)

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