What are shrimp?
A: Shrimp are crustaceans with elongated bodies and a primarily swimming mode of locomotion.
Any small crustacean which resembles a shrimp tends to
A: Called one.
How do they swim forward?
A: By paddling with swimmerets on the underside of their abdomens.
Their escape response is typically repeated flicks with
the tail resulting in what?
A: Driving them backwards very quickly.
Crabs and lobsters have strong walking legs, whereas
shrimp have what?
A: Thin, fragile legs which they use primarily for perching.
There are thousands of species adapted to what?
A: A wide range of habitats.
They can be found feeding near the seafloor on most
A: Coasts and estuaries, as well as in rivers and lakes.
To escape predators, some species flip off the seafloor
and do what?
A: Dive into the sediment.
How long do they usually live?
A: From one to seven years.
Shrimp are often solitary, though they can form large
schools during what?
A: The spawning season.
The muscular tails of many shrimp are edible to humans,
and they are widely caught and what?
A: Farmed for human consumption.
Commercial shrimp species support an industry worth how
many dollars a year?
A: 50 billion dollars.
In 2010 the total commercial production of shrimp was
A: Nearly 7 million tonnes.
Shrimp farming became more prevalent during the 1980s,
A: In China, and by 2007 the harvest from shrimp farms exceeded the capture of wild shrimp.
There are significant issues with excessive what when
shrimp are captured in the wild?
Many shrimp species are small as the term shrimp
suggests, about 2 cm (0.79 in) long, but some shrimp exceed what length?
A: 25 cm (9.8 in).
Larger shrimps are more likely to be targeted
commercially and are often referred to as what?
A: Prawns, particularly in the Commonwealth of Nations and former British colonies.
Most shrimp species are marine, although about a
quarter of the described species are found where?
A: In fresh water.
Marine species are found at what depths?
A: Depths of up to 5,000 meters (16,000 ft).
Although shrimp are almost entirely fully aquatic, the
two species of Merguia are semi-terrestrial and spend a significant part of
their life where?
A: On land in mangrove.
Colonies of snapping shrimp are a major source of noise
in the ocean and can interfere with what?
A: Sonar and underwater communication.
The small emperor shrimp has a symbiotic relationship
A: Sea slugs and sea cucumbers and may help keep them clear of ectoparasites.
Pistol shrimp stun prey with what?
A: "Sonic booms", producing some of the loudest sounds in the ocean.
Cleaner shrimp feed on what?
A: The parasites and necrotic tissue of the reef fish they groom.
Some species of shrimp are known to cannibalize others
as well if what?
A: If other food sources are not readily available.