PPT-PARTS OF A FISH MOUTH GILL

VENT CAUDAL FIN ANAL FIN PELVIC FIN PECTORAL FIN DORSAL FIN EYE SCALES Fish have no eyelids Their eyes are always open EYE The mouth is used to catch and eat food Only some fish have teeth Fish use their . JEOPARDY. How things. work?. Bony Fish. Anatomy. Circulatory. System. Digestive. System. 100. 100. 100. 100. 100. 200. 200. 200. 200. 200. 300. 300. 300. 300. 300. 400. 400. 400. 400. 400. 500. 500. BIOLOGY. At 31,500 species, fish exhibit greater species diversity than any other class of vertebrates.. Three Classes of Fish. Agnathan. : Jawless fish, . *Hagfish, . Lamprey. Chondrichthyes. : Cartilaginous Fish . OF INSECTS. . . . . Subphylum Vertebrata: . Vertebrae surround nerve cord and serves as a primary . support. ; skeleton modified . into . a skull for protection of the brain. .. This group includes . fish, amphibians, reptiles, birds, and mammals. Fish Harvest and Movement. Passive Capture Techniques. Fish caught by. Entanglement. Entrapment. Angling gears. Gear is not moved through the water. Entangling devices. Fish are snared or tangled in fabric or mesh. Developmental Variations. During embryonic development, the process of . gastrulation. forms the digestive cavity.. Gastrulation. varies in the animal kingdom. No . gastrulation. (. placozoans. ). By . Dr Jo Bannister . BSc (Animal Sc) Hons, BSc, BVMS. &. Dr Richmond Loh . BSc BVMS MANZCVS (Aquatics) . MPhil . (Path) MANZCVS . (. Pathobiol. ) . A presentation using . NORMAL GILL FORM AND FUNCTION. General characteristics. Most fish have 7 fins.. Many fishes have well-developed eyes and a keen sense of vision that they rely upon to find and capture food, avoid predation, locate shelter and find a mate. Many fishes see color and some are able to see in very low light levels.. Dr Deepak Kumar. Assistant Professor. Department of Veterinary Pathology . Bihar Veterinary College, Patna. Bihar Animal Sciences University, Patna - 14. Body Parts Of Fish. BACTERIAL DISEASES. Bacterial fish diseases and infection are very common in fish. The key to successful treatment of bacterial disease is early, accurate diagnosis and treatment. If treatment is delayed it can lead to substantial losses. . Structure of Gill . & . Accessory Respiratory organs in Fishes . Contents. Introduction. Gills in Fishes. Spiracles. Structure of gill. Gross anatomy . of . gill. Gas exchange over lamellae. Pseudobranch. Subphylum Vertebrata: (. craniata. ). Superclass. :. . Agnatha. (jawless fish). . Class:. . Cyclostomata. (jawless vertebrates: lampreys and hagfishes). . Order : . Petromyzontia. . . Order :. ‘. Branchia. ’ in . greek. = ‘gills’. In bony fish (Teleosts): . Gills lie in a . branchial. cavity covered by the operculum:. Usually two sets of four . holobranchs. Each . holobranch. consists of two . Gas exchange in fish and insects . Describe the ventilation mechanism in a fish. Make sure to talk about volume and pressure changes. . 1. What method of gas exchange is shown. in the graph?. 2. Describe what the graph is showing.. Icthyology :is the branch of. zoology devoted to the study of fish.. . . The need . for animal protein has gone far beyond supply as a result of the rapid growth of human population in many countries of the world, especially in the developing countries. An urgent need is therefore necessary to increase the production of protein sources. Nowadays, aquaculture is one of the fastest growing food production sector and an increasingly important option in animal .