Just out of curiosity, I checked the sea surface temperature site for Boston
and Portland buoys and it's about 42-43 degrees at both locations. I'm assuming
the mouth of the Merrimack is close to that. The "conventional wisdom" is that
shad don't start to move up river until temps at the mouth hit upper 40s at a
minimum (some say 50 is the magic number). It will be interesting to see what
the SST is when people start catching them.
The SST at the Long Island Sound and Eaton's Neck buoys hit 48 degrees yesterday. Could that be the trigger that gets them going on the Ct and Chicopee systems? We'll see...
-bd