2007-10-17 00:43:21 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Zoology
ok. i have a science project due on friday!!! i rlly need to know.
2007-10-17 00:45:27 · update #1
Normally, squids move by "jet propulsion" method. Squids do series of sucking water into the mantle cavity then squirting it out quickly in a split-second to make jet propulsion. Such method moves the squid rapidly through the water by propelling itself through the water.
The squid is unique because it moves vertically through the water each day (vertical migration).The squid's siphon is located on the mid-upper part of its head and normally points towards the tentacled end but a squid has an ability to rapidly move its siphon into different positions to change its direction quickly.
They stay down deep the waters during the daylight, but come up to the surface at night under cover of darkness.
There is also an unusual giant squid that had been discovered with a different way of movement through the water as it has enormous wings used to move along.
http://www.npr.org/programs/atc/features/2001/dec/squid/011220.squid.html
2007-10-17 02:22:40 · answer #1 · answered by ♥ lani s 7 · 0⤊ 1⤋
This Site Might Help You.
RE:
how does a squid move through the water???
2015-08-13 04:47:03 · answer #2 · answered by Anonymous · 0⤊ 1⤋
Squid have more than one way to get around. One way is to cruise at slow speeds using the paired fins at the rear of the mantle, combined with gentle, rhythmic pulses of water pushed out of the mantle cavity through the funnel. Squid expand the mantle cavity by contracting sets of muscles within the mantle, water fills the expanded space, the muscles relax, and the elastic mantle then snaps back to a smaller size, jetting water out through the funnel. The jet of water closes the flaps on either side of the squid's head so water can exit only through the funnel. This rhythmic flow of water is also the way in which squid breathe. As water passes in and out, the gills are refreshed with oxygen.
But let's back up. We said "squid expand the mantle by contracting sets of muscles." But how is it possible to make something bigger by making something (muscles) shorter? Muscles get shorter when they contract. Squid mantles are thick. Muscles within the mantle actually compress the thickness without collapsing the outer skin. The mantle then behaves like a syringe, and water is drawn or, more accurately, pushed in.
The second way squid move is with great bursts of speed and acceleration, which they do by recruiting other muscles to make dashes through the water. Essentially, they get more water into the mantle and they push it out more forcefully. For squid, this is like running the 100 m dash; they can swim at full speed only for short periods of time before they get worn out. But then that is usually all the time they need to evade a predator such as a tuna, shark or wahoo. Some squid may even leave the water and glide like flying fish when they are being chased by fast predators. Unfortunately for squid, this makes them available to squid-eating birds!
2007-10-17 00:48:43 · answer #3 · answered by Joshua K 1 · 2⤊ 0⤋
Jet propulsion. It is like a balloon. It takes in water and then squeezes and squirts it out. That pushes it forwards.
2007-10-17 00:46:32 · answer #4 · answered by Anonymous · 3⤊ 1⤋
It pulls its stingers up towards its body and in one motion pushes them away from its body, pushing itself through the water.
2007-10-17 00:45:52 · answer #5 · answered by double choc crunch 2 · 0⤊ 1⤋
With its fins or by jet propulsion. Its tentacles have little to do with swimming.
2007-10-17 00:46:04 · answer #6 · answered by Anonymous · 1⤊ 1⤋
by pushing using their tentacles..
2007-10-17 00:46:34 · answer #7 · answered by kahel na kuhol 3 · 0⤊ 3⤋