Feeding habit in fish

ICTHYOLOGY COURSE

1. FATIMA KHALID BS.ZOOLO-F-15-E37 SEMESTER # 07 UNIVERSITY OF EDUCATION .

2. FEEDING HABIT IN FISH

3. FEEDING HABIT Kind of food which an animal species habitually imbibes during its life or at a particular stage of its development.

4. MODES OF FEEDING HERBIVORES Labeo rohita Labeo gonis

5. omnivores Cirrhinus mrigala Cyprinus carpio

6. Carnivores Wallagu attu

7. Channa marulius Great Snakehead

8. Limnivores or Mud eaters Feed on microscopic algae and microorganisms( D emersal fish)

9. SCOPE AND SIGNIFICANCE Food and feeding habit of fish are important biological factors for selecting a group of fish for culture in ponds to avoid competition for food among themselves and live in association and to utilize all the available resources

10. ENABLES POLYCULTURE SYSTEM Cirrhinus mrigala

11. NATURAL FOOD OF FISH

12. KINDS OF FOOD FOUR CATEGORIES OF FOOD MAIN FOOD SECONDARY FOOD INCIDENTAL FOOD EMERGENCY FOOD

13. BERMUDA ANGLE FISH

14. STEONOPHAGIC AND EURYPHAGIC FISHES : Lemon sole fish Mud minnows, E uryphagic fish

15. AQUATIC FOOD WEB AND PYRAMIDS Trophic levels : PRODUCERS (SEA WEED AND SEAGRASSES) CONSUMERS : are divided into herbivores and carnivores and are typically further divided into 1st, 2nd or 3rd level consumers. For example, many zooplanktons in the marine environment are herbivorous consumers . DECOMPOSERS : Bacteria

16. APEX PREDATORS

17. MAJOR FEEDING TYPES Grazers Predators Strainers Suckers Parasites

18. PREDATORS Predatory fish are fish that prey upon other fish or animals. Some predatory fish include perch, muskie , pike, walleye and salmon

19. SUCKERS The sucking into the mouth is often practiced by bottom feeding fishes such as Sturgeons( Acipenseridae )and suckers ( Catostomidae ). STURGEONS CHUBSUCKER

20. GRAZERS In grazing the actual taking of food is by bites. BLUE GILL PARROTFISH

21. STRAINERS . Plankton filtration and swallowing of pea soup like concentrates illustrates this feeding act as in many herring like fishes including the gizzard shads ( Dorosoma ). GIZZARD SHADS BASKING SHARKS

22. PARASITES Parasitism is the most unusual and highly evolved feeding habit. Examples include Lampreys and hag fishes that suck body fluids from host fish after rasping a hole in the side of body LAMPREYS HAGFISH

23. Fishes have evolved to different types of mouth depending upon what their diet is and how they feed:

24. TERMINAL : YELLOWFIN TUNA Scombridae ( Thunnus albacares ) Yellowfin tuna Eleuthera , Bahamas .The yellowfin tuna diet primarily consists of other fish along with some squids and the occasional crustacean

25. SUPERIOR Megalopidae ( Megalops atlanticus ) Tarpon Aquarium specimen Tarpon generally eat schooling fish but they also eat some crustaceans.

26. INFERIOR Ostraciidae ( Acanthostracion polygonius ) Honeycomb cowfish Spanish Wells, Bahamas Honeycomb cowfish spend their time scavenging for detritus, waste products, or bits of dead and decaying organisms

27. PROTRUSIBLE Labridae ( Lachnolaimus maximus ) Hogfish Spanish Wells, Bahamas Adult hogfish feed mostly on mollusks or crustaceans

28. Dr. M Mudassar Shahzad