Winter & Lakes: Learn more about what happens to a lake in the winter.

Click here to learn more about NH Lakes in Winter (Source: NH Lakes Association)

Lakes in Winter

Source: NH Lakes Association

Fall Turnover: Learn more about what a lake’s fall turnover is below and click on the information page below (Source: NH Lakes Association)

Click here to learn more: NH Lakes Association Fall Turnover


U.S. Geological Survey (USCG) Released Report on Harmful Algal Blooms:

Cyanobacterial harmful algal blooms (cyanoHABs) are increasingly a global concern. CyanoHABs can threaten human and aquatic ecosystem health; they can cause major economic damage.

The toxins produced by some species of cyanobacteria (called cyanotoxins) cause acute and chronic illnesses in humans. Harmful algal blooms can adversely affect aquatic ecosystem health, both directly through the presence of these toxins and indirectly through the low dissolved oxygen concentrations and changes in aquatic food webs caused by an overabundance of cyanobacteria. Economic damages related to cyanoHABs include the loss of recreational revenue, decreased property values, and increased drinking-water treatment costs.

Nationwide, toxic cyanobacterial harmful algal blooms have been implicated in human and animal illness and death in at least 43 states. In August 2016, at least 19 states –including New Hampshire – had public health advisories because of cyanoHABs. Click here to learn more.


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