Why are the spring and fall lake turnovers important for aquatic ecosystems?

+2 votes

 

  

The lake turnovers allow the melting of winter ice.

  

Lake turnovers bring oxygen-rich water from the lake bottom up to the lake surface.

  

The turnovers bring nutrient-rich water from the bottom of the lake up to the top of the lake.

  

It forces normally bottom-dwelling species to the surface for twice-yearly production of vitamin D.

 

asked Jan 1, 2013 in Biology by anonymous
    

1 Answer

+1 vote

 

The turnovers bring nutrient-rich water from the bottom of the lake up to the top of the lake.

 

answered Jan 1, 2013 by Luffy ~Expert~ (977 points)

Related questions

+3 votes
1 answer 55 views
55 views asked Jan 1, 2013 in Biology by anonymous



...