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Lotic
This document defines and describes lotic systems. Lotic systems include streams and rivers, which are flowing bodies of water. Key characteristics of lotic systems are that the water flows in one direction, from upstream to downstream; the channels are narrower and longer than lakes; and the flowing water continually deepens and widens the channel over time. Lotic systems have shorter water retention times than lentic systems like lakes, due to the constant movement of water.
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Lotic
- 1.
- 2. water What iswater A colorless,trasprent ,orderless liquids
- 3. water What arewater source 1)surface water 2)ground water
- 4. Lotic system 1)surfacewater =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. Whatare lotic systems? Lotic environments include streams and rivers. Flowing waters are very diverse, not only in size but i n characteristics.
- 6. Characteristics of aLotic System Flow in one direction (downhill)
- 7. Characteristics of aLotic System Narrower and longer than lakes
- 8. Characteristics of aLotic System Flowing water continually cuts into the channel, making it deeper and wider as it ages
- 9. Characteristics of aLotic System Water temperature from top to bottom is usually the same Water doesn’t stay put for very long
- 10. Characteristic Streams (LoticSystem) Lakes (Lentic System) Water flow One direction of flow, upstream to downstrea m 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, maki ng it longer, wider, and deeper Lakes become shallower over time from deposi ting sediments Age progression Age progression of a stream goes from young s tream, narrow and shallow, to mature stream, wider and deeper Age progression of a lake or pond goes from la ke to marsh or swamp to land Water retention time (how long it holds w ater) Shorter retention time for water (b/c it’s alway s flowing) Longer retention time for water (because it sto res water) Temperature characteristics Top and bottom waters generally have the sam e 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