Fish By: Olivia, Shannon, and Danielle I’m not really a fish I’m not really a fish either!

CharacteristicsCharacteristics dorsal fin Lateral line eye spines anus tail fin Ventral fin pectoral fin pelvic finnostril mouth operculum

CharacteristicsCharacteristics Mouth: takes in food and allows a stream of water over the gills Nostril: a blindly ending sac with organs of smell Operculum: covers and protects gills and lets water escape from them Pectoral and Pelvic Fins: help to steer and stabilize fish Lateral Line: a tube running the length of the body just below the skin Dorsal and Ventral Fins: reduce rolling motion during swimming and help in turning movements Tail Fin: imparts final thrust in swimming movements Eye: it is the fishes point of vision Spines: the primary structural framework upon which the fishes body is built Body plan is: bilateral

HabitatHabitat All fish have different ways to adapt to their environment and their surroundings around them. Fish live in oceans, streams, lakes, pond, and rivers. SpeciesSpecies There are over a 4482 kinds of species, that we know of.

Body System Digestive What do they eat? plankton other fish (teeth) algae insects worms How do they get their food? take it off the sand or eat particles floating in the water some are predators and lay on the ocean floor until their food comes

Body System Respiratory What is the Operculum? What are the structure of the gills? Made up of tiny threadlike filaments. When fish opens mouth, water rushes in and oxygen is pulled out through the blood vessels. gill cover

Body System Circulatory The closed circulatory system. Heart chambers and functions. Atrium – collects blood and pumps into the ventricle Ventricle – contracts and pumps the blood into a small stretchable unit called the conus Blood is pumped from the heart to the gills, where it receives oxygen and gets rid of carbon dioxide. Blood then moves on to the organs of the body, where nutrients, gases, and wastes are exchanged. However, there is no division of the circulation between the respiratory organs and the rest of the body. That is, the blood travels in a circuit which takes blood from heart to gills to organs and back to the heart to start its journey again.

Body System Excretory Waste? Fish produce waste with ammonia and carbon dioxide. How are the waste eliminated? These waste are released out of the anus. Kidneys? functions to maintain proper water and electrolyte balance, regulate acid base concentration, and filter the blood balance, acid-concentration of metabolic wastes, which are then excreted as urine wastes.

Body System Response / Nervous Nervous and Response organs…. What is the lateral line system? lateral lines and eyes a line of pressure sensors running along each side of the fish that pick up pressure waves in water. How is body temp. regulated? Fish vary with the temperature of their surroundings. The temperature of cold-blooded animals is always maintained slightly below the outside temperature to prevent the loss of body moisture through evaporation

Body System Skeletal / Muscular (movement) Cartilage – flexible tissue structures some of the body Bones – not flexible and structures the body Structure and Function of scales…. The scales overlap and so form a protective flexible armor capable of withstanding blows and bumping. They are also covered with mucus to help prevent infection. swim bladder - is located in the body cavity. It contains gas (usually oxygen) and functions as a ballast organ, enabling the fish to maintain its depth without floating upward or sinking. It also serves as a resonating chamber to produce sound.

ReproductionReproduction Oviparous Hatch from eggs Embryo that develops inside body of the female to get nourishment Produce egg but remains in mother until ready to hatch Viviparous Ovoviviparous

GroupsGroups Agnatha Chondrichthyes Osteichthyes Cartilaginous Fish (no bones) Jawless Fish Boney Fish (cartilage and bones)

ImportanceImportance help cardiac patients Food Makes veins flexible Source of nutrients Cleans up the algae HumansEcosystem I AM NOT A FISH!!

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