1 / 30

Aquatic Ecology

Aquatic Ecology . Eli Vaillancourt. Abiotic Objectives: . 1. pH - measures the hydrogen ion concentration a pH less than 7 are acidic and solutions with a pH greater than 7 are basic or alkaline. Alkalinity - quantitative capacity of water to neutralize an acid.

marly
Download Presentation

Aquatic Ecology

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Aquatic Ecology Eli Vaillancourt

  2. Abiotic Objectives: • 1. pH- measures the hydrogen ion concentration • a pH less than 7 are acidic and solutions with a pH greater than 7 are basic or alkaline. • Alkalinity- quantitative capacity of water to neutralize an acid. • This is important in determining a stream's ability to neutralize acidic pollution from rainfall or wastewater. • Dissolved Oxygen- a relative measure of the amount of oxygen that is dissolved or carried in a given medium

  3. example • Brook Trout like to live in waters with a pH of 5.0 to 7.5

  4. Abiotic Objectives • 2. Water Flow- the rate or speed at which water travels • Water temperature- how hot or cold the water is. • Water turbidity- is the cloudiness or haziness of a fluid caused by individual particles • Surface Tension- contractive tendency of the surface of a liquid that allows it to resist an external force

  5. example • The water strider is denser than water but surface tension allows it to stay afloat. • Largemouth Bass live in water temperature from 62 to 83 degrees

  6. Abiotic Objectives • 3. The shape of the land can affect water flow and channel shape. • If a stream is high up in a steep mountain the channel will usually have a strong water flow. • As opposed to a stream on nearly flat land will be much slower. • Streams provide many habitats

  7. Abiotic Objectives • 4. Water Cycle!

  8. example • The Northern Red Salamander only comes out to search for prey, during or after rain.

  9. Abiotic Objectives • 5. Watersheds of PA

  10. Abiotic Objectives • 6. Streams range from a first to twelve order. 1st being the smallest and 12th being the largest.

  11. Biotic Objectives • 1.Identifying Aquatic animals: • http://quizlet.com/2216643/pa-envirothon-fish-flash-cards/

  12. Biotic Objectives • 2. Life cycles of animals • Ex: Trout

  13. Biotic Objectives • Bull Frog

  14. Biotic Objectives • Dragonfly

  15. Biotic Objectives • Adaptations of Mudpuppy: • Slimy skin- keeps it moist • Tail- assists in jumping • Gills- breathe underwater

  16. Biotic Objectives • Yellow Perch habitat requirements: • Fresh water • Low turbidity • 17.6 to 25 degrees C • Moderate vegetation • Low water flow for laying/hatching eggs

  17. Community Objectives • 1.Aquatic and Wetland Environments: • Pond • Lake • Stream • Marsh • Bog • Swamp

  18. Community Objectives • 2. Functions of wetlands • recycle nutrients • purify water • attenuate floods • recharge ground water • provide habitats for wildlife

  19. Community Objectives • 3. Stream from headwater to mouth

  20. Community Objectives • 4. Functional feeding groups: • Mayfly nymphs are scrapers that eat algae, bacteria and fungus of rocks. • Stonefly nymph is a shredder that eats decaying leaves and twigs. • Dragonfly nymph is a predator that eats smaller insects, leeches, or fish.

  21. Community Objectives • 5. Food Web

  22. Aquatic resource issues • Artificial fertilizers and pesticides in crops causes intoxication of aquatic life. • Factories produce many toxic and hazardous wastes which can pollute the soil, rivers and water sources if released untreated in the ecosystems. • Fishing reduces the fish communities in rivers and oceans, destructive fishing techniques can also cause water pollution and damage to other aquatic life. • Mining operations release greenhouse gases such as carbon dioxide into the atmosphere, as well as heavy metals into the soil and water sources.

  23. Aquatic resource issues • Bog Turtle is endangered • Eastern Massasauga is endangered • Atlantic Sturgeon is threatened

  24. Invasive Species • Sea Lamprey • Common Carp • Red-Eared Slider

  25. Fishing Regulations • http://fishinpa.com/

  26. Migratory Fish Restoration • American Eel • American Shad • Atlantic Sturgeon

  27. Water Quality • Ammonia • conductivity • fecal coliform bacteria • nitrate + nitrite • Nitrogen • dissolved oxygen • pH • Phosphorus • suspended solids • temperature • turbidity

  28. How can you protect water quality? • IDENTIFY your watershed. • TEST your soil before applying fertilizers or other nutrients to avoid over-application. • REDUCE pesticide use. • PATCH bare soil areas in your yard to prevent erosion and runoff. • SWEEP, rather than hose down, sidewalks, driveways, and other impervious surfaces. • USE a funnel for pouring when filling your lawn mower or other gasoline-powered tools • DISPOSE of pet waste in the garbage

  29. How can you protect water quality? • MANAGE landscape projects properly. • MINIMIZE lawn area and implement healthy lawn care practices. • REPLACE paved surfaces, such as a garden path or driveway, with porous material. • USE RAINWATER to your advantage. • MAINTAIN a natural buffer zone between your landscaped area and any ponds or streams to prevent bank erosion and to filter contaminants • AVOID planting trees too close to septic systems.

  30. THE END!

More Related