Categories
Uncategorized

The Compleat Angler (benthic invertebrate version)

A lovely fall day beckoned and I grabbed my gear and head to Holmes Run in Alexandria with anticipation of landing some big ones. No not of the vertebrate variety, but benthic invertebrates, affectionately known as “stream bugs”. I arrived midmorning with my kicknet, sieve, and forceps, a somewhat different toolkit than Izaak Walton might recommend… Being of a scientific bent’ I also had my YSI sonde and water collection bottles… 


The water was clear and fast flowing and if we’d been in a pristine, forested in watershed in the mid Atlantic, we could have expected to find a vast diversity of “stream bugs”. However, we are in the middle of Northern Virginia . . embedded in suburban deveopment. And the stream rocks had a furry mat of algae covering their surface.

Would there be an abundance of bugs? How many species and which kinds? And what did the water quality data show?

Tune into my next blog posting for the answers . .. 😉

Categories
Uncategorized

Eagle festival 2015

Seamus Riley  and I are here at Mason Neck for the 2015 Eagle festival. joining another Mason group from Point of View. Good turnout of folks interested in new facility. Visits from Park Fox and a colonial gentleman!

image

image

image

image

Categories
Uncategorized

First tidal Potomac sampling of 2015

image

A fine morning at Belhaven marina on Hunting Cr in the tidal Potomac River just south of Alexandria

Categories
Uncategorized

Teaching Envi Sci

Undergraduate majors will benefit from the new teaching labs at PEREC. Here are students studying freshwater algae this spring in EVPP 301.

image

image

image

Categories
Uncategorized

Water sampling in Accotink Cr

Assistant researcher Mahdi Mojarrad and I visited Accotink Creek this morning to conduct our normal quarterly water quality monitoring for Fairfax City. It was a very chilly morning and there was ice covering much of the creek.

image

In one place along Daniels run we had to break through the ice with our sledgehammer.

image

The water looks very clear but the temperature was barely above freezing and the conductivity was elevated due to road salt runoff.

Categories
Uncategorized

Thursday Feb 5 2015

image

Starting to look closely at floor plans for new building to make sure we get it right.

Categories
Uncategorized

Artist rendering of new Potomac Science Center

image

Categories
Uncategorized

Potomac Science Center site

image

Potomac Science Center Site
January 22, 2015
Pouring footings for office/exhibit wing.

image

Crane for driving concrete piles.

image

Panorama of Potomac from PSC site.

Categories
Uncategorized

Glasgow IMCC

Views of the River Clyde in Glasgow Scotland

image

image

image

image

image