By Julie Barker
Our Chequamegon Bay research cruise wrapped up Tuesday, one day early! Our early return was the result of a lot of hard work and the luck of great weather (except the heat, which we northerners are not accustomed to).
Here are some take-away facts of what we accomplished in 10 days:
- 14 Benthic sleds (a sampling technique).
- 274 Ponar grabs, which means…
- If you average three rounds of elutriation (separating the samples, as described in our previous post) per sample (normally our minimum), that’s at least 822 times we stuck our arms in sediments up to our elbows swirling round and round. I must say, my right hand and arm are nicely exfoliated.
- If you average 200 organisms per sample, that means we may have approximately 54,800 organisms to now pick out of woody debris, vegetation, or bits of sediment that didn’t get flushed out in elutriation. Once picked, each organism will be individually examined under a microscope and identified as close to species as possible.
- 830 person hours of work.
- We filled out enough field sheets to fill a one-inch thick binder.
- We collected approximately 28 gallons worth of samples (seperated out into varying sizes of sample jars).
In addition to accomplishing the goals of our study, we also had some fun adventures. Last Friday we came across an unmanned boat while en route to a site. It was evident that the boat got loose from its dock because the bow line had parted. For the safety of others, we towed the boat to the nearest residential dock. I had the pleasure of riding in the boat while we towed it, to keep it from fishtailing. A nice lady answered our knock on her door, and agreed to let us leave the runaway boat at her dock for the coast guard.
All in all it was a productive and fun research cruise. However, the work is just beginning. We now need to process the samples in order to enumerate and identify all organisms.
Thank you for following our blog, we hope you enjoyed reading about our work!
About the Author: Julie Barker is an ORISE fellow with EPA’s Midcontinent Ecology Division, part of the Agency’s Office of Research and Development. She has been participating in coastal field study assessments, and her research includes investigating how wetland-nearshore interactions affect coastal fisheries, and exploring novel ways to detect invasive species.