Early evening on the Nashua River - photo by Cedwyn Morgan

2016 River Report Card

Our volunteer monitors have been collecting and analyzing samples for the past four months. July monitoring found the rivers low to very low with some of the cold water fishery resources warmer than acceptable for fish. Cold water fishery resources support habitat for trout and other river fish that need cool well oxygenated water. No surprise given the drought conditions in both Massachusetts and New Hampshire. The Squannacook and Nissitissit Rivers are popular trout fishing rivers and had temperatures of 22.1-27 C which converts to 71.8-80.6 F. This may be delightful for us to splash in but is stressful for fish and other organisms.  If the flows were higher fish could migrate to cooler upstream waters or deep pools but given the low to very low flows especially in the smaller streams this may be a challenge. 

The bacteria levels were mixed, some red and yellows but many clean blues. We are speculating that the localized rain (some monitors did not report rain on the Thursday evening prior to monitoring but others did) resulted in some spikes of bacteria from rain runoff.

View 2016 River Report Card. Note that the Report opens on the E.coli worksheet, but you can scroll through to the other data worksheets (temp/DO, etc.) at the bottom of the page.

Do you have questions, or would you like more information? Contact Martha Morgan, NRWA Water Programs Director (This email address is being protected from spambots. You need JavaScript enabled to view it.) or Kathryn Nelson, NRWA Water Monitoring Coordinator (This email address is being protected from spambots. You need JavaScript enabled to view it.).