Fish      man’s best friend(1)
Scientific Name i.e. how do crazy guys call them? <ul><li>ichthyoid – from Greek ichtys  /fish/  </li></ul><ul><li>ichtyol...
Our Fish <ul><li>Subphylum Vertebrata </li></ul><ul><li>Infraphylum  Gnathostomata </li></ul><ul><li>Superclass  Osteichth...
Cladogram – Fish Relatives(5)
What makes a fish our fish friend?(6) <ul><li>All  fish are: </li></ul><ul><ul><li>Ectothermic i.e. “cold-blooded”, aquati...
Fish Sex <ul><li>Fish reproduce sexually (wow :O) </li></ul><ul><li>Females lay eggs outside their body </li></ul><ul><li>...
Kiss a Fish(8)
Fish Anatomy <ul><li>Circulation </li></ul><ul><ul><li>Single circuit    heart-gills – body-heart </li></ul></ul><ul><ul>...
Fish Running around <ul><li>Snake-like varieties  </li></ul><ul><ul><li>Wave-like fashion  </li></ul></ul><ul><ul><li>Very...
Friends
The Great White Shark ( Carcharodon carcharias ) a.k.a. The Great White / White Death
<ul><li>The world’s largest know predatory fish; at the top of the ocean’s food chain </li></ul><ul><li>Cartilaginous fish...
Adaptations: <ul><li>Acute hearing, sharp eyesight, good sense of smell (using them for hunting), torpedo-shaped body (goo...
Interactions with Humans <ul><li>Sample biting </li></ul><ul><li>Human attacks are rare. </li></ul>
Fun Fact <ul><li>“ Great whites can detect one drop of blood in 100 L of water and can sense even tiny amounts of blood in...
 
Clone anemone fish ( Amphiprion ocellaris)   a.k.a. Clownfish
<ul><li>Ray-finned fish </li></ul><ul><li>Habitat: warm waters (Indian, Pacific Ocean, Barrier Reef, Red Sea) </li></ul><u...
<ul><li>Symbiosis with sea anemone: uses it as a shelter, provides nutrients with its fecal matter, eats small invertebrat...
Fun Fact: <ul><li>All clownfish are born male, but as they mature one dominant becomes female. The female is also a primar...
The Electric Eel   (Electrophorus electricus)
<ul><li>Elongated cylindrical body (~2 m; 20 kg) </li></ul><ul><li>habitat: Amazon river, basins in South America </li></u...
Fun Fact <ul><li>Electric eels can produce an electric shock of up to 500 volts, which is deadly for an adult human. </li>...
The mollusk joke   <ul><li>http://www.youtube.com/watch?v=xRad4Y3FPdM&NR=1 </li></ul>
Works Cited <ul><li>http://richardwiseman.files.wordpress.com/2009/07/fish-bowl.jpg </li></ul><ul><li>http://animaldiversi...
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Fish 10 1-karkelanova_tantcheva_shuleva

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  • Organisms have to possess this structure at least at some part of their development in order to be defined as Chordates.
  • Most fish belong to Osteichthyes. They have a bony skeleton which is opposite to cartilaginous skeleton.
  • Ectothermic means that fish have a variable body temperature which closely matches that of the surroundings
  • Yolk is contained in the egg How many eggs may a fish lay depends on the type of fish, how heavy it is and how big are its eggs
  • Extracting oxygen from water is harder and consumes more energy that extracting it from air
  • Fish 10 1-karkelanova_tantcheva_shuleva

    1. 1. Fish  man’s best friend(1)
    2. 2. Scientific Name i.e. how do crazy guys call them? <ul><li>ichthyoid – from Greek ichtys /fish/ </li></ul><ul><li>ichtyology – ichtys /fish/ + logos /reason/ (Greek) </li></ul><ul><li>Kingdom Animalia(2) </li></ul><ul><li>Phylum Chordata(2) – organisms that possess a structure called a notochord </li></ul><ul><ul><li>rod that extends most of the length of the body </li></ul></ul><ul><ul><li>Acts as a support during locomotion </li></ul></ul><ul><ul><li>bilateral symmetry </li></ul></ul>
    3. 3. Our Fish <ul><li>Subphylum Vertebrata </li></ul><ul><li>Infraphylum Gnathostomata </li></ul><ul><li>Superclass Osteichthyes(3) – “bony fish” => have bony skeleton </li></ul><ul><ul><li>Class Actinopterygii - ray-finned fish </li></ul></ul><ul><ul><li>Class Sarcopterygii - lobe-finned fish </li></ul></ul><ul><li>Class Condrichthyans(4) – cartilage skeleton </li></ul><ul><ul><li>mostly sharks, rays and their relatives </li></ul></ul><ul><ul><li>Subclass Elasmobranchii – skarks, rays, skates </li></ul></ul><ul><ul><li>Subclass Holocephali – so called “ghost sharks” </li></ul></ul>
    4. 4. Cladogram – Fish Relatives(5)
    5. 5. What makes a fish our fish friend?(6) <ul><li>All fish are: </li></ul><ul><ul><li>Ectothermic i.e. “cold-blooded”, aquatic vertebrates </li></ul></ul><ul><ul><li>Skin is generally covered with scales </li></ul></ul><ul><ul><li>Their limbs are modified into fins for swimming </li></ul></ul>(7)
    6. 6. Fish Sex <ul><li>Fish reproduce sexually (wow :O) </li></ul><ul><li>Females lay eggs outside their body </li></ul><ul><li>Males sprays milt over the eggs (fish’s sperm cells) </li></ul><ul><li>Yolk – where the food for the embryo is contained </li></ul><ul><ul><li>May remain little longer after the new born fish goes out </li></ul></ul><ul><ul><li>Very few fish carry eggs in their bodies </li></ul></ul><ul><ul><li>From 1500 to 5000 eggs may be laid </li></ul></ul>
    7. 7. Kiss a Fish(8)
    8. 8. Fish Anatomy <ul><li>Circulation </li></ul><ul><ul><li>Single circuit  heart-gills – body-heart </li></ul></ul><ul><ul><ul><li>Transport of oxygen, nutrients, wastes </li></ul></ul></ul><ul><ul><li>Single Pericardial sac: </li></ul></ul><ul><ul><ul><li>2-chambered heart (upper atrium & lower ventricle) </li></ul></ul></ul><ul><ul><ul><li>2 accessory chambers </li></ul></ul></ul><ul><li>Respiration </li></ul><ul><ul><li>Oxygen – extracted from water </li></ul></ul><ul><ul><li>Gills – have a lid, rich in blood vessels </li></ul></ul><ul><ul><ul><li>Open mouth  H 2 O goes to gill  O 2 exchanged for CO 2 (diffusion)  lid opens – water leaves  O 2 enters the blood system </li></ul></ul></ul>
    9. 9. Fish Running around <ul><li>Snake-like varieties </li></ul><ul><ul><li>Wave-like fashion </li></ul></ul><ul><ul><li>Very slow type of movement </li></ul></ul><ul><li>Fish with streamlined bodies and a stiff caudal fin or tail </li></ul><ul><ul><li>Swing their tail from side to side </li></ul></ul><ul><ul><li>Move faster </li></ul></ul><ul><li>Pectoral and Pelvic fins => difficult maneuvers; acts as breaks </li></ul><ul><li>Dorsal and anal fins => thought to help balance during steady swimming </li></ul>
    10. 10. Friends
    11. 11. The Great White Shark ( Carcharodon carcharias ) a.k.a. The Great White / White Death
    12. 12. <ul><li>The world’s largest know predatory fish; at the top of the ocean’s food chain </li></ul><ul><li>Cartilaginous fish </li></ul><ul><li>Live in cool, coastal waters (oceans) </li></ul><ul><li>Eat sea lions, seals, small toothed whales, and even sea turtles </li></ul><ul><li>Warm-blooded (endothermic) </li></ul><ul><li>Swim up to 69 km/h; can weigh more than 2 T </li></ul><ul><li>Endangered species </li></ul>
    13. 13. Adaptations: <ul><li>Acute hearing, sharp eyesight, good sense of smell (using them for hunting), torpedo-shaped body (good swimmers), Several rows of teeth </li></ul><ul><li>One extra sense: have organs that sense the electromagnetic fields generated by animals (3) </li></ul>
    14. 14. Interactions with Humans <ul><li>Sample biting </li></ul><ul><li>Human attacks are rare. </li></ul>
    15. 15. Fun Fact <ul><li>“ Great whites can detect one drop of blood in 100 L of water and can sense even tiny amounts of blood in the water up to 5 km away. ” (3) </li></ul>
    16. 17. Clone anemone fish ( Amphiprion ocellaris) a.k.a. Clownfish
    17. 18. <ul><li>Ray-finned fish </li></ul><ul><li>Habitat: warm waters (Indian, Pacific Ocean, Barrier Reef, Red Sea) </li></ul><ul><li>Lifespan: 3-6 years </li></ul><ul><li>Range: 10 cm max </li></ul><ul><li>Aquarium fish </li></ul>
    18. 19. <ul><li>Symbiosis with sea anemone: uses it as a shelter, provides nutrients with its fecal matter, eats small invertebrates which can potentially harm the anemone </li></ul>
    19. 20. Fun Fact: <ul><li>All clownfish are born male, but as they mature one dominant becomes female. The female is also a primary defender. </li></ul>
    20. 21. The Electric Eel (Electrophorus electricus)
    21. 22. <ul><li>Elongated cylindrical body (~2 m; 20 kg) </li></ul><ul><li>habitat: Amazon river, basins in South America </li></ul><ul><li>feed on invertebrates; adult eels eat fish and small mammals </li></ul><ul><li>vascularized respiratory organ in oral cavity </li></ul><ul><li>Developed sense of hearing </li></ul><ul><li>Generate powerful electric shocks </li></ul>
    22. 23. Fun Fact <ul><li>Electric eels can produce an electric shock of up to 500 volts, which is deadly for an adult human. </li></ul>
    23. 24. The mollusk joke <ul><li>http://www.youtube.com/watch?v=xRad4Y3FPdM&NR=1 </li></ul>
    24. 25. Works Cited <ul><li>http://richardwiseman.files.wordpress.com/2009/07/fish-bowl.jpg </li></ul><ul><li>http://animaldiversity.ummz.umich.edu/site/accounts/information/Chordata.html </li></ul><ul><li>http://en.wikipedia.org/wiki/Osteichthyes </li></ul><ul><li>http://en.wikipedia.org/wiki/Chondrichthyes </li></ul><ul><li>Textbook </li></ul><ul><li>http://www.ecnca.org/Animals/Fish/Fish_Characteristics.htm </li></ul><ul><li>http ://i.livescience.com/images/ig54_butterfly_fish_02.jpg </li></ul><ul><li>http://www.chinadaily.com.cn/english/doc/2006-02/15/xin_130203150724296283015.jpg </li></ul>

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