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Biology-Related Homework Help General Biology Topic started by: MARISHKA on Feb 7, 2018



Title: Considering that species diversity in estuaries is limited by constant changes in salinity, ...
Post by: MARISHKA on Feb 7, 2018
Considering that species diversity in estuaries is limited by constant changes in salinity, temperature, and water movement, where, vertically, in an estuary would one expect to find the greatest species diversity? The least species diversity?
 
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Title: Considering that species diversity in estuaries is limited by constant changes in salinity, ...
Post by: wow678917645 on Feb 7, 2018
Looking at the vertical zones of an estuary, one finds the greatest species diversity on and in the sediments of estuaries. The reason for this is that fine sediments of estuaries trap a layer of interstitial seawater that does not change its salinity and temperature as drastically as overlying water. For this reason the sediments of estuaries are more stable environments and support a greater species diversity. Below the aerobic sediments, in the anoxic zone, few species other than methanogenic bacteria are found.