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Chapter 3 Overview

Chapter 3 Overview . Taxonomy, Habitat and Genetics. What is Taxonomy?. 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.

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Chapter 3 Overview

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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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