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Dissection of a Sea Bass

Dissection of a Sea Bass. Yee Jek Hui, Darryl (33) 1P1. Parts of the Sea Bass. The Sea Bass. The sea bass is white at the bottom, turning to a dark bluish silver at the top. The head and fins are darker than the rest of the body. Spiny dorsal fin. Soft dorsal fin. Pectoral fin.

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Dissection of a Sea Bass

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  1. Dissection of a Sea Bass Yee Jek Hui, Darryl (33) 1P1

  2. Parts of the Sea Bass

  3. The Sea Bass • The sea bass is white at the bottom, turning to a dark bluish silver at the top. The head and fins are darker than the rest of the body.

  4. Spiny dorsal fin Soft dorsal fin Pectoral fin Caudal peduncle Caudal (tail) fin Anal fin Pelvic fin The Outside of a Sea Bass • Pectoral Fin: Locomotion and side to side movement

  5. Spiny dorsal fin Soft dorsal fin Pectoral fin Caudal peduncle Caudal (tail) fin Anal fin Pelvic fin The Outside of a Sea Bass • Pelvic Fin: Move the fish up and down

  6. Spiny dorsal fin Soft dorsal fin Pectoral fin Caudal peduncle Caudal (tail) fin Anal fin Pelvic fin The Outside of a Sea Bass • Dorsal Fin: Lends stability in swimming

  7. Spiny dorsal fin Soft dorsal fin Pectoral fin Caudal peduncle Caudal (tail) fin Anal fin Pelvic fin The Outside of a Sea Bass • Caudal Fin: To propel the fish forward

  8. Spiny dorsal fin Soft dorsal fin Pectoral fin Caudal peduncle Caudal (tail) fin Anal fin Pelvic fin The Outside of a Sea Bass • Anal Fin: Like the dorsal fin, it also lends stability in swimming

  9. Gills of a Fish • Gills allow fishes to breathe underwater. They consist of gill filaments, gill arches and gill rakers.

  10. Gill rakers Gill arches Gill filaments Gills of a Sea Bass • Gill Filaments: Large surface area to maximise the amount of oxygen absorbed.

  11. Gill rakers Gill arches Gill filaments Gills of a Sea Bass • Gill Arches: Provide support for the gills and their associated blood vessels

  12. Gill rakers Gill arches Gill filaments Gills of a Sea Bass • Gill Rakers: Bony, finger-like projections off the gill arch which function in filter-feeders in retaining food organisms

  13. Heart Pyloric caeca Internal Anatomy of a Sea Bass • Heart: Circulates blood throughout the body. The blood transports waste products from the cells to the kidneys and liver for elimination.

  14. Heart Pyloric caeca Internal Anatomy of a Sea Bass • Plyoric Caeca: Secrete enzymes that aid in digestion, may function to absorb digested food

  15. Internal Anatomy of a Sea Bass • Muscles: Provide movement and locomotion Swim bladder Muscles Vent

  16. Internal Anatomy of a Sea Bass • Vent: The site of waste elimination from the fish's body Swim bladder Muscles Vent

  17. Internal Anatomy of a Sea Bass • Swim Bladder: A hollow, gas-filled balance organ that allows a fish to conserve energy by maintaining neutral buoyancy in water. Swim bladder Muscles Vent

  18. Intestines Liver Stomach Kidney Internal Anatomy of a Sea Bass • Liver: It assists in digestion by secreting enzymes that break down fats, and also serves as a storage area for fats and carbohydrates. The liver also is important in the destruction of old blood cells and in maintaining proper blood chemistry, as well as playing a role in nitrogen (waste) excretion.

  19. Intestines Liver Stomach Kidney Internal Anatomy of a Sea Bass • Stomach & Intestines: Break down and digest food as well as absorb nutrients. 

  20. Intestines Liver Stomach Kidney Internal Anatomy of a Sea Bass • Kidney: Filters liquid waste materials from the blood. It also regulates water and salt concentrations within the fish's body, allowing certain fish species to exist in freshwater or saltwater

  21. References • Badman’s Tropical Fish. (2010). Fish Anatomy [on-line]. Available: http://badmanstropicalfish.com/anatomy.html • Island Fishkeepers. (2008). Fish Anatomy [on-line]. Available: http://www.iowas.co.uk/fish%20anatomy.html • Australian Museum. (2010). Dissection of a Blue Mackerel, Scomber australasicus [on-line]. Available: http://australianmuseum.net.au/Dissection-of-a-Blue-Mackerel-Scomber-australasicus

  22. Thank You

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