Lotic

water,lotic ecosystem

1. Lotic systems classification of Lotic

2. water What is water A colorless,trasprent ,orderless liquids

3. water What are water source 1)surface water 2)ground water

4. Lotic system 1)surface water =water that collects on the surface of the ground Ex=river , stream 2)ground water=groundwater is water that is located below the earth's surface surface water can be lentic and lotic Surface water can be lotic and lentic

5. LOTIC SYSTEM A. What are lotic systems ? Lotic environments include streams and rivers . Flowing waters are very diverse , not only in size but in characteristics.

6. Characteristics of a Lotic System Flow in one direction (downhill )

7. Characteristics of a Lotic System Narrower and longer than lakes

8. Characteristics of a Lotic System Flowing water continually cuts into the channel, making it deeper and wider as it ages

9. Characteristics of a Lotic System Water temperature from top to bottom is usually the same Water doesn’t stay put for very long

10. Characteristic Streams (Lotic System) Lakes (Lentic System) Water flow One direction of flow, upstream to downstream Various flows, no particular direction General Depth Shallower on average Deeper than average Size Description Narrower and longer Wider and shorter Changes in shape / depth over time Stream continually cuts into the channel, making it longer, wider, and deeper Lakes become shallower over time from depositing sediments Age progression Age progression of a stream goes from young stream, narrow and shallow, to mature stream, wider and deeper Age progression of a lake or pond goes from lake to marsh or swamp to land Water retention time (how long it holds water) Shorter retention time for water (b/c it’s always flowing) Longer retention time for water (because it stores water) Temperature characteristics Top and bottom waters generally have the same temperature (b/c of the constant mixing) May have different temperatures from the top to bottom (b/c it has layers based on density) General Differences Between Streams and Lakes