Uploaded by KDONDOTCOM on May 11, 2009
Shrimp are swimming, decapod crustaceans classified in the infraorder Caridea, found widely around the world in both fresh and salt water. Adult shrimp are filter feeding benthic animals living close to the bottom. They can live in schools and can swim rapidly backwards. Shrimp are an important food source for larger animals from fish to whales. They have a high resistance to toxins in polluted areas, and may contribute to high toxin levels in their predators. Together with prawns, shrimp are widely caught and farmed for human consumption.
[edit] Etymology
The term shrimp originated around the 14th century with the Middle English shrimpe, akin to the Middle Low German schrempen, and meaning to contract or wrinkle; and the Old Norse skorpna, meaning to shrivel up.[1]
[edit] Life cycle
A nauplius of a shrimp.Most shrimp mature and breed only in a marine habitat, although there are a small number of freshwater species. The females lay 50,000 to 1 million eggs, which hatch after some 24 hours into tiny nauplii. These nauplii feed on yolk reserves within their body and then undergo a metamorphosis into zoeae. This second larval stage feeds in the wild on algae and after a few days metamorphoses again into the third stage to become myses. At this stage the myses already begin to appear like tiny versions of fully-developed adults and feed on algae and zooplankton. After another three to four days they metamorphose a final time into postlarvae: young shrimp having all the characteristics of adults. The whole process takes about 12 days from hatching. In the wild, the marine postlarvae then migrate into estuaries, which are rich in nutrients and low in salinity. There they grow and eventually migrate back into open waters when they mature. Most adult shrimp are benthic animals living primarily on the sea floor.
[edit] Distinction from prawns
[edit] Biological
The pink shrimp Pandalus borealis is an important food resource
The spot prawn (Pandalus platyceros) is actually a large shrimpArthropods can be subdivided into several classes, one of which is the Malacostraca.
This class contains about half of the crustaceans. The members of this class have a primitive body plan that can be described as shrimp-like, consisting of of a 5-8-7 body plan. They have a small carapace that encloses the head and the thorax, and have a muscular abdomen for swimming. They also have a thin exoskeleton to maintain a light weight. These general characters are common in all members of the class.
The class can be further divided into the Decapods, which are even still divided into the Duedrobanchates (prawns) and the Carideans (shrimp and snapping shrimp).
The prawns have sequentially overlapping body segments (segment one covers the segment two, segment two covers segment three, etc), chlelate (claw like) first three legs, and have a very basic larval body type.
The shrimps also have overlapping segments, however, in a different pattern ( segment two overlaps segments one and three ), only the first two legs are chelate, and they have a more complex larval form.
Biologists distinguish the true shrimp from the true prawn because of the differences in their gill structures. The gill structure is lamellar in shrimp but branching in prawns. The easiest practical way to separate true shrimps from true prawns is to examine the second abdominal segment. The second segment of a shrimp overlaps both the first and the third segment, while the second segment of a prawn overlaps only the third segment.[2]
[edit] Commercial and culinary
While in biological terms shrimps and prawns belong to different suborders of Decapoda, they are very similar in appearance. In commercial farming and fisheries, the terms shrimp and prawn are often used interchangeably. However, recent aquaculture literature increasingly uses the term "prawn" only for the freshwater forms of palaemonids and "shrimp" for the marine penaeids.[3]
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lmao!
AARONJW84 3 months ago
my dude fly as fuck
jasper6398 6 months ago
i eat shrimp
MrYabudy 8 months ago
fuuny
MrYabudy 8 months ago
eating dat shrimp wid a whole lot a swag, hit up the grocery store throw it in a bag, head back to the crip throw that shit in a pan, eat a bout ten pounds then do it all again
iwishiweremason 8 months ago
EAT SO MUCH SHRIMP I GOT IODINE POISONING
psychomoongoose 8 months ago
what's a skrimp?
AfroPranksta 9 months ago
hell yeah eat dat shrimp!!!
ShrimpSkateboards 9 months ago
this shit go hard
dajaunaye123 9 months ago
i realy wan some shrimp
SuperLadypirate 1 year ago