Iowa State University
Course: A ECL 365
Instructor: Dr. Adams
In order to move efficiently through a medium such as water, two forces need to be generated. __________ counteracts the effects of gravity while ________ creates a forward/backward motion.
Swimming locomotion is most commonly done by __________ (waves), or ________
Thrust is typically created by the _________ region, but other regions can also be utilized.
A force that counteracts thrust is known as ________ . It is caused by friction between the body and water ( __________ ________ ) or turbulence as fish moves and displaces water ( ________ _____________ ).
In terms of swimming speeds, a fish that uses the ___________ type of thrust is capable of bursts of 2-3 body lengths per second, whereas a fish that used the __________ thrust type is capable of up to 10 body lengths per second.
In swimming, there are at least two factors that need to be reduced/counteracted in order to perform optimally – these are ______ and ___________ .
What three ways provide lift, and how do they function?
Name and describe the thrust movement types.
Describe the types of instability that must be overcome. Be sure to include how they are corrected for.
Discuss the ways that a fish might reduce drag in the water.
Describe the two different types of muscle found in fish, and what they are good for.