210 likes | 887 Views
Ichthyology- The scientific study of fishes. Mr. Safford Biological Science. http:// www.youtube.com/watch?v=fNlQzE5QVoo&feature=related Pre-video work Fishes???. Not plural for fish, that is just fish. What does fishes identify ?. Ichthyology Definitions. Maxilla- Pre-maxilla-
E N D
Ichthyology- The scientific study of fishes Mr. Safford Biological Science
http://www.youtube.com/watch?v=fNlQzE5QVoo&feature=relatedPre-video workFishes??? • Not plural for fish, that is just fish. • What does fishes identify?
Ichthyology Definitions • Maxilla- • Pre-maxilla- • Operculum- • Dorsal fin- • Pectoral fin- The anterior(front) paired fins, attached to pectoral (shoulder) girdle. • Pelvic fin- • Caudal fin-
Definitions • Anal fin- • Adipose fin- • Fin Ray- • Fin Spine- • Frenum- • Lateral line- • Barbel-
Work done will watching video Fill in the taxonomic levels of fish Kingdom: (Animals) Animalia Phylum: Class 1: Class 2: Class 3:
Answer these Agnatha Q’s What does Agnatha mean (etymology of the word)? What is an example of the Agnatha class? These are not eels! What can you see that Agnatha do not have that eels do?
Agnatha • Agnatha are the only jawless _____________and they retain their ___________________as adults. • Agnatha also do not have _________ fins like other fish. • How many gill slits do agnatha have? • What is another primitive feature?
Gnathostomes • What fish are Gnathomstomes? • What structure is thought to have evolved into the jaw of gnathostomes? • What type of fish have cartilage skeletons? • What is an example of this type of fish?
GnathostomesChondrichthyes • Why do fish have nostrils? • What feature do chondrichthyes have that is considered primative? • What shape are placoid scales? • What two things would happen to chondrichthyes if they were to stop swimming?
GnathostomesOsteichthyes • What does osteichthyes mean? • What is one example? • How do they sense vibrations (hear)? • How is the lateral line, which detects pressure, important?
GnathostomesOsteichthyes • How many gill arches do they have under their opercula? • What do you think would happen if you cut the gill arches? • What do kidneys do? • Where does sexual reproduction occur among osteichthyes?
GnathostomesOsteichthyes • Why don’t bony fish sink when they stop swimming? • What kind of scales do these fish have? • What are fish called since they do not control their internal temperature? (rather are the same temperature as their environment)
GnathostomesOsteichthyes • How many chambers are there in a fish heart and what are they called? • What kind of circulatory system do fish have because of how many loops are present?