A few weeks ago I posted a question and several people asked me to post
the replies. The question was:
I'm looking for a way to automatically measure the salinity of the
water in an estuary for a couple of months this fall. I can get to the
site every week or so, so I don't need massive data
Excellent methods for sampling earthworms are on this website:
http://www.nrri.umn.edu/worms/research/methods_worms.html
The liquid mustard method is easy and works very well, in my experience.
-Kathleen
--
Kathleen S. Knight
Research Ecologist
USDA
Dave
In my experiences with pitfall traps, I don't recall capturing many
earthworms. I have captured occasional snails, slugs, and some larvae,
more likely to capture insect nymphs. If you do use pitfall traps, I have
always used propylene glycol as the killing agent/preservative, 2-4 cm
deep,
Dave et al.,
I've been using both pitfall trap and Berlese sampling methods to survey leaf
litter arthropods in Costa Rica for the last year. For the pitfall traps I'm
using small, ~150ml cups in which I put ~30ml of 75% ethanol alcohol with a few
drops of liquid soap, to break the surface
Post-Doctoral Fellowship under the Visiting Fellow in Government Labs
program
Topic: Image segmentation and attribution for forest inventory
In support of the Canadian National Forest Inventory and various
provincial and territorial forest monitoring programs, we are working to
increase our
