Intertidal Dredging and Data Analysis

This week we started the second phase of the Yaquina Bay intertidal population study. If you think way back to the first week I was here in Newport, you might remember that I had to wake up really early to do RAM surveys. We took sediment samples, temperature readings, and counted the visible clam siphon holes at random points in different sand/mud flats in the Bay. Now we are going back to these same locations and dredging them to find out exactly how many clams are at each site.

Intertidal dredging is very similar to the subtidal dredging we have been doing, except we get to dredge this time, not divers. Surprisingly, the system is pretty easy to use and the most difficult part seems to be staying in one place when holding the bag end of the dredge. Because of the air in my drysuit a lot of times I just start floating away. Luckily we can only sample when the water isn’t very high (between 2 and 3 feet) so I can get myself back in the right spot fairly quickly.

To work the intertidal dredge requires 3 people: 1 person mans the dredge and sucks up the sediment/clams, 1 person mans the bag and makes sure that the bag doesn’t get clogged and that sediment/water isn’t going towards the dredge head, and the final person is on the boat manning the motor and sorting samples.

I very quickly learned how to do all 3, but I think it was very helpful that I already has indirect experience from all the subtidal work we have done. I was familiar with the data sheets and how the dredge system as a whole worked, so I only needed to learn the exact method of how to use the dredge in the water – and how to efficiently move around in a bulky dry suit.

Next week is more dredging, and at the end of the week we will prep for yet another week of work in Tillamook  – and you thought I was done! hah!

While not out doing fieldwork (we can only dredge a few hours at a time during low tide), I have started a new data analysis project. This will incorporate the historical data I entered over the last few weeks, and some of the data we have been getting this summer. Hopefully I will be able to incorporate all of this together in a cohesive way so I have something to add to my presentation other than 15 slides of our various projects and methods. But don’t get too excited, it will probably just be comparisons of size frequency and abundance. I also don’t think I will have time to run any statistical analysis so I won’t be able to say whether any of the trends we see are significant or not.

During my free time, I have been attempting to enjoy the decent weather we have been having in Newport by surfing a lot, playing beach volleyball, and watching LOTS of Olympics. I feel like all the students here have really started to get along well, and it is a shame we only have 3 short weeks left before we all must continue our journeys elsewhere. Until next time!

 

THE WORKSHOP

I finally got my head to stop spinning long enough to write this post, so here it goes.

 

The workshop.

 

The days leading up to and after the workshop have been some of the most exciting and nerve-wracking yet.  I also think that I could not have learned more in such a short amount of time. We’ll start from the beginning of the madness; approximately one week before the event, at this time all parties involved started to get a little anxious, with the pre-workshop groups still working vigorously on straw documents on communications and management protocols, workshop participants started turning to me to inquire about the status of things. This was in addition to the regular logistics emails from everyone from workshop participants to steering committee members, so before I knew it I was inundated with so many conversations and tasks my usual hand-scrawled to-do list couldn’t quite handle the level of organization I needed to get everything done. Half-way through the week things seemed to settle down,  I was as caught up as I could be while waiting on a final agenda, straw documents, and travel reimbursement documents. and, then BOOM, everything I was waiting for and more came in,  including the seemingly innocuous task of creating name tags.

A very important lesson I learned through this process is not to defer any decision to only one cook. I made the task of creating name tags  infinitely more difficult when I didn’t let every cook in the workshop kitchen put in their two cents about name tags. Some (including myself)  believed a stack of blank stick-on tags would be quite sufficient so that information about name, title, affiliation would be correct given the amount of time left to verify and generate name tag information. However, others believed at least the steering committee and organizers should have pretty printed name tags, and once I approved this plan and sent out a list of names, titles and affiliations to be approved by the rest of the steering committee the plan for name tags was forced to change several more times.  Apparently there is a lot of ways to make name tags: in color, with affiliation and title, with affiliation only, with affiliation and the workshop title, in hanging plastic holders, in clip-on tags, on stickys, printed professionally, printed in our office, and so forth. I’m pretty sure each possible combination was considered given the amount of supplies and time at our disposal.  Eventually, we figured out a way to keep everyone happy and also was within our means to produce, and it only took 4 hours to figure out. Next step was to go to the list and make sure (checked and double-checked) that names and affiliations were accurate. Once this was done, I happily accepted to help of my coworker Linda Larsen to type and print name tags. This was actually very fortuitous as other last-minute and off-the radar tasks came in.

The surge of activity continued into Monday morning as I tried to tie up as many loose ends as possible before heading up to Portland for one last meeting before the workshop Tuesday morning. Loaded down with a box of name tags, flip charts, pens, and registration list I eventually made it to Portland. The event probably wasn’t nearly as stressful as I think it was, but I think it seems that way mostly because of the daily nightmare that constituted my travel in and out of downtown Portland and Portland State University’s campus. Of the 3 times I had to get my way downtown each time I had a printed set of directions, once I immediately got off track and ended up lost, another time my directions lead me in an endless circle of one-way streets to nowhere, and Finally the very last time I made it back to he PSU parking garage where I paid exorbitant prices for all-day parking without any trouble.  I think I can attribute much of the stress I felt those days to these hair-pulling adventures. And then there was the actual workshop, after I scrambled to get a registration table in order, name-tags packed away in their holders I actually got to sit back and watch the days unfold.

Because the 90-some participants came from a variety of different backgrounds and familiarity of Aquatic Nuisance Species and Tsunami debris issues, the first part of day 1 was spent giving introductions to the topics and updates from representatives from each state or province involved. States involved included Alaska, Hawai’i, Oregon, Washington, and California and there also a representative from Canada. This piece in particular was pretty interesting, because despite my efforts to keep up-to-date with all the goings-on in the different states, the ultimately is a big difference in the organization and structure of each state’s responding/involved agencies and this translates in a lot of ways in how apparent their efforts are. It was also interesting to think about how the geographic configuration of each state/province’s coasts has a large impact on any response and monitoring protocol agreed on regionally.

The rest of day one consisted of breakout groups, where different groups were assigned different pieces of the straw communications protocol document or the management straw document to discuss and offer suggestions for clarification or improvement. I served as a note-taker for one of these breakout groups and though that too, was a very interesting role where I had to be quick and efficient, but also be able to synthesize along the way so that my notes were coherent and representative of flow the discussion.

After many more talks and summaries of the breakout group discussions, I was pleasantly surprised and refreshed by a very detailed talk from phycologist, Gayle Hansen, who worked on identifying over 20 different algal species from the dock in Newport and a boat in Cape Disappointment. Her talk was very detailed, as she went into many of the different taxonomic tools and methodologies she used to identify species, some she was at first convinced were novel! This talk in particular, was useful to demonstrate the range of professionals present at this meeting, we had representatives from a range of NGOs, tribes, congressional staffers, and state and federal agencies. In the end, I think this truly was one of the major successes of the workshop, to bring all these people across the region together in one room to discuss these issues, but also more simply, to make each other all aware of who and where people are working on these issues, and how to get in contact with them.  Silly for sure, but in my survey of logistics tasks to take care of I never thought about sending the detailed participant list that I have been working on for weeks out to everyone who attended the workshop. After having several people inquiring and request it though, the list went out during the workshop.

In the end, it is just the beginning however, and just as I thought my work here was done, there is still much to be done. Now the pre-workshop groups are post-workshop groups and they and the steering committee will begin re-drafting documents and deliberating over the next steps to implement a viable regional response protocol.  Only more exciting news on the JTMD-AIS front to come!

Whale Distractions

This week I finished up pressure counts and interviews at Cape Perpetua. I am honestly going to miss spending time in this area, I have witnessed so many amazing and strange things here over the past month. Highlights from this week include trying to give surveys while grey whales spout in the background. At first I tried to use the whales as an excuse to talk to visitors…”hey do you see the whales out there, oh by the way would you be willing to take a quick survey…” This worked well until I had to start taking 2 minute breaks in the middle of the survey while we gawked at the whales. Whales have a strange power over people, I saw a family of 4 resting in their car until one of them spotted the whale and at first I thought there was an emergency the way all 4 of them immediately burst out of the car and sprinted to the nearest lookout.

This week I found several people to survey with a lot of interest and stake in marine reserves decisions. One man I talked to comes up to the central coast every summer to fish and he had helped out with previous ODFW marine reserves research at Redfish Rocks in Port Orford. Another man owned his own commercial fishing guide service in the area. I keep thinking that after 125 surveys I should be able to predict  peoples’ answers based on their demographics and what they tell me about themselves, but people catch me off guard all the time. I was definitely expecting the fishermen to be against marine reserves, several of them have seen them successfully implemented in their home states and see benefits of them if they are implemented correctly.

Outside of work I have been watching as much of the Olympics as I can squeeze into my day. One of my former teammates at OSU and dear friend, Patricia Obee is racing in the lightweight double (Rowing) for Canada in London and another one of my best friends is also there cheering her on. It definitely makes the Olympics seem more real when I have raced both with and against many of the women competing!

 

Moving forward

Very happy to get out of the office this week to interact with students and interns for work on the videos. On Wednesday I visited HMSC and had a great time working with everyone, despite the troubles I encountered trying to figure out how to operate a camera that uses a tape. Yes, a tape. The wave exhibits the interns created are super neat and seemed to be a big hit with center visitors. The hand-powered exhibit drew people of all ages and a lot of  people were drawn to the electric exhibit, but because it’s waiting for a safety feature, the exhibit is roped off from the public.

I also met with two graduate students who were very happy to share their research projects. One is collecting seafloor core samples and analyzing numbers of mollusks and gastropods in a given area. The other student is developing a harbor seal study to understand the seals’ feeding habits in oxygen deficient water. Not everyone who is interviewed will be included in the clip, but both seem to have potential for the video. Only time will tell.

Glad to be moving forward on the media projects, but wishing I had more time to develop them. The best way to get quality footage is to spend time with your sources and let them begin to act naturally around you. That’s when the good stuff happens. Maybe next week.

Week 6: Phytoplankton Limitation Experiment 3

Well despite starting earlier this week, we didn’t get quite the blooms we were looking for at all of our sites. Ironically, the early start may have been the problem, as the night collection may be to blame. Yes, that’s right if I would have remembered my Intro Oceanography classes from years ago, I may have recalled that zooplankton undergo vertical migration during the evenings to feast on phytoplankton. If we had collected some of these migrating zooplankton then its a pretty safe bet that it will affect our results. There was some question this week as to whether this could have been the problem, as we still got pretty strong responses at our OSU site. On Friday however, our Toledo, Cannon Quarry, and Elk City sites weren’t showing the responses we were quite hoping for, but instead of coming in over the weekend we decided to wait till Monday.

The one common theme throughout these six weeks has been that is quite difficult to work with something you can’t see. A million different things could be going wrong at any given moment, and the possible migrating zooplankton from this week is just one example of this. Paranoia can strike pretty quickly. Thoughts race through your mind: Did that bottle not get a spike?Is our nutrient spike solution degrading? Is the equipment malfunctioning? Were zooplankton not successfully filtered? Are the lights in the tanks producing tank effects? Or perhaps the most frightening of all: Is this just how things are? That explanation has seemed more and more amazing to me as the summer has gone on. I can’t help but think of the great experiments in science over time, and wonder if they experienced similar paranoia before acceptance. The answer to that question is probably a resounding yes. Science is paranoia. Science is exhaustive. Science is complete. It may take many experiments and many results, but eventually the answers to the questions will be teased out of the data.

So that’s what we’ll continue to do over these last few weeks–try to tease out some answers from a few more weeks worth of data, and try to minimize and/or justify the paranoia when necessary. It is a process that I am thoroughly enjoying. It is like unraveling a conspiracy one clue at a time. Alright, that’s all for now. Until next week, when there may be another wrinkle in the conspiracy, or perhaps another clue if we are lucky. Good night!

Statistics, map, and the fair

My main project last week involved analyzing the data from the previous week’s cockle surveys and comparing them to the surveys conducted in February. Thus, much of last week was spent in the lab running stats and assembling maps on the computer. By now my GIS skills have sharpened somewhat, and I was able to assemble a map that compares the spatial distribution and densities of cockles in the July survey to those in the February survey. Although there does appear to be a difference, it seems random, and I cannot yet ascertain any significant conclusion from it. My mentor Scott was out of the office all week, so perhaps he will be able to provide some insights on Monday.

I’ve often told people that statistics is the math class I’ve been waiting my whole life for. I have yet to refine my abilities in it, but I find statistics a fascinating way to interpret data and answer questions of interest. The challenge in statistics for me is determining which method is most appropriate to use for a certain situation. Scott left me some suggestions, but it was still up to me to determine which method to use and how to interpret the results. I may have gone a little overboard: I ran two regression analyses of cockle weight vs shell length (one using the “raw” data, which turned out to be nonlinear, and one using transformed data to establish a linear relationship and constant variation); I also ran summary stats for both the February and July surveys. I ran ANOVA tests comparing cockle weights in July vs February and shell lengths in July vs February. I wasn’t sure if ANOVA was appropriate to use, so I additionally ran four nonparametric tests (two with one-sided hypotheses, and two with two-sided hypotheses) for cockle weights and shell lengths in July vs February. I generated boxplots, histograms, and scatterplots comparing cockle sizes and densities. On Monday I anticipate spending time whittling down the stats and analyzing the data. Scott will help me confirm my findings, but so far it looks like there is no significant difference in weights and shell lengths of cockles in July vs February. Maybe they just haven’t grown that much, or maybe I’m out in left field. Who knows?

Last Tuesday I helped staff the ODFW booth at the Coos County fair. We had a 1200-gallon aquarium with rainbow trout, baby cutthroat trout, baby smallmouth bass, and some perch. Despite the awesome showpiece, we weren’t very busy and didn’t have many visitors. It was probably due to it being a Tuesday morning, which constituted a slow day at the fair.

This week we’re scheduled to do a new cockle survey in a new location. We’re going to try and take down more data in the field this time, which should decrease the amount of time we need to spend in the lab. I also look forward to discussing the statistics with Scott and seeing if I’m on the right track with my data interpretation.

A little R&R

The last week for me has had very little to do with work and more to do with play.  I was very lucky to have nearly a whole week off from working at the Visitor Center to go to a family reunion at Prineville Reservoir in Eastern Oregon. Prineville Reservoir is about 30-40 minutes outside of Bend and is formed by a dam on the Deschutes River. It is definitely a gem of a place to spend a whole week of summer.   The high desert of Oregon in summer is hot.  90+ degrees hot with absolutely no moisture in the air.  Compare this to the balmy high of Newport around 60-65 and you might get an idea of how much of a shift in climate this was for me.  But it was one that was pretty easy to get use to after a day acclimating to my new abode next to the reservoir.  All the kids ended up camping in tents while the parents stayed nice and cool in their air conditioned campers.  The water level depends on the time of year and the previous winters snow pack and this year the water was pretty high which was good for us.

A day at Prineville usually goes about like this:

Wake up around 9:30.

Read/wait for people to get back from the morning water ski run

Eat a huge breakfast around 10:30

Go wakeboarding/wake surfing

Read and eat a small lunch

Go wakeboarding/ wake surfing

Read

Eat a delicious dinner

Campfire

Sleep around 10:30

Repeat

 

Because the water level was pretty high the ski boats weren’t too far of a walk (previous years the water level is so low that it is a bit of a trek to get down to the water). I had never gone wake boarding or wake surfing before and both those were a blast.  Unfortunately I wasnt quite in “Prineville shape” and the first day I really tweaked a muscle in my arm which rendered my right arm pretty useless for the rest of the week.  Besides that little mishap everything else about the week was awesome.  I had a blast and am rested and ready for the rest of the summer at the VC.

Week 6: a week without an end

This week was for lack of a better term; long. Diana and I agreed to cover for Brian this week while he attended a family reunion. As a result I worked on both Sunday and Monday. I was also still recovering from the exciting time that I had at Da Vinci days last weekend. The week was fairly typical however, once Thursday came around I found myself getting ready for a break (but of course I still had 3 more days to go).  Several interesting things did occur this week though. A man brought in some interesting “shrimp” that he had found on Saturday. Unfortunately, we could not find anyone to identify it (everyone was off that day). I also had record high numbers on nearly all of my Estuary walks this week (all over 17 people). We are still tweaking the tsunami tank.  This week we installed a protective case around the two wave engines to prevent people from messing with the motors. Additionally we also did yet another ineffective software upgrade to the system. I’m still waiting for my Legos. On Friday I did my most spectacular ocean quest yet. There were actually more people in the auditorium when the presentation ended than when it began (quite an accomplishment).

We seem to have had more volunteers that normal this week, perhaps I am just imagining things, but I probably met at least 5 “new” volunteers this week. The unusual length of the week has taken a lot out of me. Normally I go for a nice walk on the beach every day after work. I was not able to do that until Saturday night. There was also the fact that my half way progress report was due this week for my internship class. I was very happy once I had completed that assignment. Finally getting to the beach on that last day made it that much more enjoyable. I also had fun watching the Olympic opening ceremonies with some of the other interns I look forward to getting back to my regular routine and also my nice long vacation that is coming up in August.