Biology of Sharks, Skates, and Rays

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David M. Koester, Ph.D.

Earlier Reports:
Links by day:
Day 7
Day 6
Day 5
Day 4
Day 3
Day 2
Day 1

What is known about this topic....

I am interested in the structure and function of the electric organ found in the tail region of skates. The electric organ develops from skeletal muscle fibers and is probably used for communication in conjunction with the electrosensory system possessed by all sharks, skates and rays. I am also investigating the use of the pelvic fins of skates in locomotion along the bottom.

What is believed to be true, but not yet proven...





What is needed for greater understanding...





Why is this topic important?
Relate to everyday concerns...






Specific Research question/hypothesis...





Data being gathered...





Particular ecological/environmental
concerns and factors which influence
this research effort...





Preliminary evaluation and comments...





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