fishes
TRANSCRIPT
The Characteristics Of Fish
• All of the characteristics of fish are generalizations because the diversity between fishes is so large
• These characterizations include:– Paired fins– Scales– Gills
The Evolution Of FishesThe Evolution Of Fishes
• Originally, Fishes were armored and Originally, Fishes were armored and jawlessjawless
• In the Devonian Period, or the Age of In the Devonian Period, or the Age of Fishes, Fish developed paired fins and Fishes, Fish developed paired fins and jawsjaws
• These adaptations were incredibly helpful These adaptations were incredibly helpful in increasing the fitness of fishin increasing the fitness of fish
Feeding• Different populations of fish from the same
species can feed different ways depending on their environment
• Types of feeders include herbivores, carnivores, parasites, filter feeders, and detritus feeders
Respiration And CirculationRespiration And Circulation
• In fish, gas exchange occurs in the gill filaments, which filter out oxygen and let the rest of the water pass out through the gill slits
•Some fish, called lungfish, possess organs that act as lungs •Blood flows through fish in one circular loop
Works Cited"The Devonian Period." Faculty and Staff, Georgia Perimeter College. Web. 31 Mar.
2010. <http://facstaff.gpc.edu/~pgore/geology/geo102/devonian.htm>."Fish Pictures, Pictures of Fish, Fish Facts - National Geographic." Animals, Animal
Pictures, Wild Animal Facts - National Geographic. Web. 29 Mar. 2010. <http://animals.nationalgeographic.com/animals/fish.html>.
"Fish under Water Image by RoShute on Photobucket." Image Hosting, Free Photo Sharing & Video Sharing at Photobucket. Web. 29 Mar. 2010.
<http://media.photobucket.com/image/fish%20under%20water/RoShute/Under%20Water%20Life/1554ajq.jpg?o=12>.
"Kinds of Fish." Earthguide: Educational Resources in Earth, Marine, Environmental and Planetary Sciences. Web. 31 Mar. 2010.
<http://earthguide.ucsd.edu/DFL_ed_prelim/kinds/pop_life_long_lived.html>.Miller, Kenneth R., and Joseph S. Levine. Prentice Hall Biology. Upper Saddle River,
N.J.: Prentice Hall, 2002. Print."Pikes (No, Not Pike Street Market in Seattle&.) Predators." SwittersB & Fly Fishing.
Web. 31 Mar. 2010. <http://swittersb.wordpress.com/2009/10/26/pike-no-not-pike-street-market-in-seattle/>.
"Queen Angelfish - Holacanthus Ciliaris." Tropical Fish, Aquarium Fish, Care for Saltwater and Freshwater Fish, Aquarium Setup. Web. 31 Mar. 2010.
<http://www.fishlore.com/profile-queenangelfish.htm>.