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Understanding Interspecies and Intraspecies Competition, Watersheds, and Aquatic Zones

This informative piece explores key ecological concepts including interspecies and intraspecies competition, providing examples for each. It defines a watershed as a region draining into a river or body of water, and describes an estuary as the area where a river meets the sea. Additionally, it categorizes lakes and ponds into three distinct zones: the Littoral zone, rich in aquatic plants and small fish; the Limnetic zone, near the surface abundant with light; and the Profundal zone, a deeper area devoid of light where decomposers thrive.

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Understanding Interspecies and Intraspecies Competition, Watersheds, and Aquatic Zones

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Presentation Transcript

  1. Warm up What is interspecies competition? What is intraspecies competition? Give example of each

  2. What is watershed ? • A region draining into a river, river system, or other body of water.

  3. What is an estuary • Where the river meets the sea.

  4. How many zones do lakes and pondsHave? • Ponds and lakes have three zones. • Littoral zone • Limnetic zone • Profundal zone

  5. Littoral Zone • The shallow zone of the lake and river near the shore line is known as Littoral zone. • Various aquatic plants along with various predatory insects, amphibians, and small fish are found in this zone.

  6. Limnetic zone • The area of the pond that further away from the shore but close to the surface is known as Limnetic zone. • This zone is also known as Euphotic zone because light can penetrate in this area of the lake.

  7. Continued Limnetic zone • Some floating algae, zooplankton and fish live in this zone.

  8. Profundal zone • Deep water zone that is below the limits of effective light penetration is known as Profundal zone. • Numerous bacteria and worm like organisms that eat debris on the lake’s bottom live in this zone. • This zone is also known as Aphotic Zone. That means no light zone

  9. plankton • Tiny free floating weakly swimming organisms are known as plankton.

  10. Phytoplankton • Single celled algae are known as phyto plankton. • Phta means plant.

  11. Zooplankton • Planktonic animals that feed on phytoplankto –n are known as Zooplankton.

  12. Euphotic Zone • The layer from the surface of the water to the depth where the light penetration is too low. Another name for limnetic is euphotic zone.

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