Daniel Wilkins Smith

4 Questions 2 Answers 0 Followers

Questions related from Daniel Wilkins Smith

Why do freshwater mussels bury themselves in winter?

From many sources, it is known that freshwater mussels in North America bury themselves into the sediments during the winter (see reference below). Since they lack a true siphon, they cannot feed...

17 May 2021 5,820 3 View

Are there methods to quantify black carbon/soot carbon reductions in PCB bioavailability in sediments?

Much empirical and experimental work shows that, compared to amorphous organic carbon, black carbon/soot carbon (BC/SC) binds much more aggressively to PCBs, and PAHs and other very hydrophobic...

20 September 2019 7,744 2 View

Is there general equation to estimate recession times (time to return to base flow) for small streams as function of watershed area?

I am working on very small un-gauged streams in non-desert areas of United States. Long ago, found reference that recession times, in days, were equal to watershed area (in square mile) raised to...

06 December 2018 6,171 0 View

What kind of benthos, if any, live in very liquid freshwater sediments?

When sampling freshwater sediments (with corers and dredges), we will occasionally pull up sediments that are more water than sediments for the very top 5 cm or so. This top layer is easily...

05 July 2016 4,460 4 View