News
Oregon Field Guide
In August of 2009, Oregon Field Guide accompanied one of the participating fishermen on his boat as he hauled his last pots of the season. Five of these pots contained the dissolved oxygen units that we designed and created as part of this program and others contained temperature sensors (see below). The episode should be airing in February or March, 2010, so stay tuned for more information.
Jeremy (right) describing the use of temperature sensors in the OrFIOOR program to a film crew from Oregon Field Guide (Image courtesy Jordan Windholz 2009)
Preliminary 2009 DO Data
I am pleased to announce that the 2009 dissolved oxygen component of this program has met with success and has provided some interesting data for us to wade through in the off season. Below is a preliminary plot of DO concentrations off of the Seal Rock and Waldport, Oregon areas showing concentrations at 10m, 30m, and at 50m.
Please note that this data is still preliminary and has yet to undergo rigorous scientific scrutiny to ensure that it is accurate. Along these lines, I can report that the three sensors located on the 30m isobath (orange, blue, and green lines) were damaged by crab in the pots around the beginning of August (see image below). We believe, therefore, that data from those sensors was no longer accurate after August 1, meaning that the spikes in the graph are simply erroneous data. The next step with this data is to separate it based on location and create plots that will display in map form on this website. I will also begin talking to NANOOS to see if they are interested in adding it to their growing dataset.
This image of a dissolved oxygen sensor demonstrates the mechanical damage that can be caused by crabs in an enclosed area (they scratched the black material off of the sensor window). These findings have prompted a redesign of the protective cage structure surrounding the sensor to prevent similar damage in the future.
