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Exploring Aquatic Taxonomy: Understanding Fish Species & Classification

Dive into the world of aquatic taxonomy to uncover the classification, habitats, and genetics of fish species. Explore the 5 kingdoms, from Monera to Animalia, and learn about the scientific naming system. Discover diverse fish classes like Osteichythes and orders such as Siluriformes and Perciformes.

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Exploring Aquatic Taxonomy: Understanding Fish Species & Classification

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  1. Chapter 3 Overview Taxonomy, Habitat and Genetics

  2. What is Taxonomy?

  3. How many species of fish are there? • 24,000 are identified each year new species are found. • There are thousands of other aquatic species of crustaceans, mollusks, aquatic plants and other aquatic organisms.

  4. Taxonomy is …. • A system of organizing organisms into groups. • Taxonomy is based on relationships between living things.

  5. Modern Systems • 5 Kingdoms: Monera (Bacteria), Protista, Fungi, Plantae, and Animalia. • Kingdom: Broadest group of similar organisms • Phylum or Division • Class • Order • Family • Genus • Species

  6. Kingdoms • 1. Monera: very primitive organisms. • Examples : Bacteria and blue-green algae

  7. Kingdoms cont. • 2. Protists: Single-celled organisms, very primitive. Examples: slime molds, protozoa, seaweed (algae), plankton

  8. Fungi Kingdom • Yeasts, mildews and mushrooms. Some can cause disease in fish. Some can be food for aquatic organisms.

  9. 4. Plantae • Plants that produce their own food through photosynthesis. • Examples of Aquatic Plants: • Elodea • Watercress

  10. 5. Animalia • Multi-cellular animals that are classified into Phyla by their similarities and differences • Examples: Mollusca, Arthropoda, and chordata

  11. Mollusca Nautilus Snail • Nautilus

  12. Arthropoda Lobster Blue Crab

  13. Chordata: Backbones and spinal or nerve cords Tropical Fish Tilapia

  14. Scientific Names • Also called Binomial Nomenclature • It is based on Latin or Greek Names. • The Genus and Species makes up the two part name.

  15. Names • What is the scientific name for the Blue Tilapia? • Oreochromisaurea: Blue Tilapia

  16. What would the full classification look like? • Kingdom: Animalia • Phylum: Chordata (spinal cord) • Order: Ciclidae • Genus: Oreochromis • Species: Aurea

  17. What is a variety? • A group of related organisms within a species with some unique characteristics, but not different enough that they warrant another species. • Usually associated with plants.

  18. Fish Classes • Osteichythes : Has a skeleton with true bones, a skull with sutures, teeth (if present), nasal openings on each side, and a swim bladder or functional lung. Examples: Catfish

  19. Orders • Siluriformes: Example : Catfish • Salmonids: Example : Atlantic Salmon • Cypriniformes: Example: Baitfish and Carp (goldfish), barbs, danios, and rasboras. • Perciformes : Most diversive of all fish orders. Example: Saltwater and brackish fish: tilapia, striped bass, gouramis and cichlids, red drum, pompanos. • Characidae: Examples: Tetras • Gonorynchiformes: Example: Milkfish • Acipenseridae : Example: Sturgeon

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