Nand P concentrations across a wide range of autrophic aquatic plant/algae life forms

Tom Barr

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JSTOR: Accessing JSTOR

Pretty says they are for the moist part, the same in their needs, though seasonal changes with large macrophytes and plants plays a role(they get huge and need a lot more nutrients than smaller algae etc at certain times of the year).

So luxury uptake is not really luxury, they know that the seasonal change is coming and store extra nutrients just in case. I argued that aquatic plants really do not do luxury uptake in the past.

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Tom Barr
 

Tom Barr

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Another interesting paper from Danish systems, where shallow lake differences are compared to deeper lakes, something not really even considered in aquatic plant hobbyists citations...................but clearly of extreme importance........

SpringerLink - Journal Article

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Tom Barr
 

Tom Barr

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Here's a long term focus on a northern lake with plants, and we see that the plants really define the system, even independently of the nutrient status.
So rich or lean, the plants do define the system and balance.

Some Aquarists have argued that this is not the case in their systems, leaner is better and reduced algae, better plant dominance, however, the mountain of evidence suggest otherwise.

Switching to southern sub and tropical lakes, we also find the same patterns in several hundred surveyed aquatic macrophyte lakes in Florida with wide ranges of nutrients.

Seems that the natural systems in both cold and warm waters are similar if you find a nice shallow macrophyte dense system.


Regards,
Tom Barr