BIOL 3070 Lecture Notes - Lecture 1: Bowfin, Spiracle, Whale Shark
Document Summary
This is when fish sweep their body axis tail side to side producing undulations of the body and tail. How form relates to function regarding a certain behavior in fishes: the c-start escape response. This response allows them to escape predators and survive attacks. Curls into a c and then rapidly uncurls to swim away to safety. Long fin (male sailfin mollies) vs short fin. There is a trade off - long fin attract mates but it are slower to escape from predators. In the lab: it was shown otherwise, sailfin actually had a quicker c-start response than the shortfin. Cartilaginous fishes - claspers in males (3 groups: chimeras - boxy heads, jaws for eating hard prey, clasper on top of head, gill in front of pectoral fin, sharks, bonehead a. i. a. ii. a. iii. a. iv. a. v. Pelvic and pectoral fins ventral and mouth is ventral too.
