Week 9: Individual Research

Week 9 marked the beginning of our individual research projects. The long weekend served us well as optimal low tides allowed for ample time of marine sampling in the intertidal. With lectures and exams finished, individuals and groups visited Boiler Bay, Tokatee Klootchman, Yachats Beach, and many other coastal sites to begin answering their research questions. Some projects include topics like gastropod abundance on varying algal species, factors influencing crab claw strength, density of Katharina around Saccharina beds, and the effect of parasitism on Upogebia pugettensis; a type of mud shrimp. The two week effort is to be concluded by the construction of a research paper and presentation open to the public. Symposiums will be held June 9th at the Hatfield Visitor Center.

Alanna and Sonora spend their morning moving 90 lb crab pots for their experiment at Tokatee Klootchman. All smiles :)

Haley and Tyler's urchin feeding experiment involving inclusion and exclusion of Pisaster.

The quick segue into the middle of the week dampened the responsibilities of field work and demanded attentive lab time. As if overnight, the lab was transformed from its dull, empty state to a factory of engineered curiosity. Previously bare bins now held an abundance of creatures of the intertidal, from sculpins to sea stars. Many of us carefully ran through trials of experimentation and intrigue. With minimal casualties, experiments started to fall into place.

Kate and David patiently observe feeding preferences of Pisaster in their handcrafted Y-maze. Troublesome sea stars were aptly nicknamed "Steve".

Sierra looks into shelter material preferences of tidepool sculpins.

In an interesting turn of events, the first octopus of the course was found! It is hypothesized that this is a young Enteroctopus dofleini. Sonora and Alanna found the little guy in a tide pool at Manipulation Bay.

A momentary greeting occurs.

Octopus are very smart and strong creatures. They can fit through almost any crevasse large enough for their beak. Interestingly, the arms of the octopus contain two thirds of their neurons. This makes the arms somewhat autonomous - they literally have a mind of their own! Disc-like suckers lining the arms can taste and smell anything they touch, allowing them octopus to sense nearby prey. When this juvenile octopus grows up, it can have up to 280 suckers per arm. That's like having 2240 mouth-noses. Best of luck to you, small friend!

A baby seal hangs out in the high zone of Fogarty Creek.

By the time Thursday had arrived, most groups were finishing their data collection. With the help and guidance of some awesome TAs, students began running (and troubleshooting) statistical analyses on software programs such as RStudio and Microsoft Excel. For some of the students, this was their first time working with statistical softwares such as R, but individuals quickly became accustomed. Many cups of coffee and tea were consumed in this phase of the research.

Chris outwits RStudio to form an ANOVA table.

A feast of freshly caught crab to end the week! 

In attempt to unwind after many hours spent on research, we closed out the week by spending an afternoon cooking crab! Students who spent the better part of the week catching crab wrangled their test subjects into pots and even grabbed enough crab for the whole class to enjoy. Specimens that weren't consumed were safely returned to the intertidal. Who knew science could be so delicious!

Friday also brought a bout of sunshine, which had many students basking in the sun all afternoon. It was truly a wonderful way to ring in the weekend.

One Fish, Two Fish, Flatfish, Rockfish

Week 3
Fish
by Isaac Shepard and Levi Vasquez

After a brief introduction to our new (to us) professor Dr. Su Sponagule and TA Miram Gleiber we wasted no time diving into our hectic schedule for the week, full of field excursions, lab activities and lecutres...

Yaquina Bay Beach Seine
Using a large seine net we collected several species of estuary fishes from Yaquina Bay right in front of Hatfield on Monday afternoon.  Two people would carry the large net out into the water until they were nearly chest deep before spreading it out between them and dragging it back ashore, trapping fishes in the process.  Through the torrential downpour we got our first look at the organisms we would be up against for the rest of the week including several species of Cottids (sculpins), a Bay Pipefish (Syngnathus leptorhynchus) and even a juvenile salmon (Family Salmonidae).

                                                                  Beach Seining in Yaquina Bay

Boiler Bay Tidepool Collections
Our second field trip with Dr. Sponaugle consisted of collecting tidepool fishes with hand nets at Boiler Bay. We experienced some difficulties collecting the fishes due to their unwillingness to cooperate. There wasn't much fish diversity in the areas that we collected, so in the end we headed back with buckets full of sculpin.
                                                                      

Issie walks between tide pools at Boiler Bay in search of Sculpins

                                                                                      

                                                                                       Bottom Trawling Aboard the R/V Elakha

Landon, Heidi, Ashley, Rachel, Cat and Melanie aboard
the R/V Elakha

Wednesday we were given an opportunity to conduct a boat based survey from the R/V Elakha, one of OSU's small research vessels based at Hatfield.  With the assistance of Dr. Lorenzo Ciannelli we collected data on the distributions of the flatfish species Parophrys vetulus (English Sole) and Citharichthys stigmaeus (Speckled Sand Dab) within Yaquina Bay.  We were looking to see how size of the fish and density of fishes varied in relation to distance from the mouth of the bay.  This data became the basis for our report for the week.  We were unable to show if densities varied between near mouth and upstream sites due to small sample size.  However, we did detect a significant difference in size structure of English Sole flatfish between upstream and mouth sites in the estuary.  Larger fish were found further upstream while smaller ones were found more towards the mouth.  This excursion was probably one of the highlights of our time here at Hatfield so far.  The weather was beautiful and we all had an excellent time.



Field Trip to the Oregon Coast Aquarium
On Thursday we had a chance to visit the Oregon Coast Aquarium to gather information for our subtidal fish species report. For this report, we each chose a fish species and gathered information such as behavior, habitat, and anatomy, from observation at the aquarium.

A Rockfish (Sebastes caurinus) at the Oregon Coast Aquarium

David and Kat pulling up one of our light traps

Light and Minnow Traps
On Thursday night we deployed light and minnow traps from the dock below the pump house at Hatfield. The light traps were made to capture larval and juvenile fish, and are an original design by Dr. Sponaugle. We retrieved the traps bright and early Friday morning and found that we had captured a few juvenile salmon, sticklebacks (Gasterosteus aculeatus), plankton, and an abundance of shrimp.













Throughout the week we spent many hours learning about the anatomy, ecology, habitat, and life histories of many fish that are found in the Pacific Northwest. When not in lecture or the field we were spending time in the lab learning how to identify different fish species, examining plankton, or cataloging some of the different species we had collected from the field.  

During the week we also had three guest lecturers give talks.  On Wednesday Dr. Robert Cowen (the director of Hatfield) gave us a lecture on rocky reefs and kelp forest.  We learned how the fishes in these environments will inhabit different parts of the reef/kelp forest or feed at different times of day so as to avoid competition with each other.

Thursday, Dr. Laurie Weitkamp gave us a lecture on Lampreys.  These parasitic fish are very important to Northwest Native American Culture and are currently threatened with extinction.  We learned that very little is known about the life history and ecology of these fishes but that more research is currently underway to figure out how to save this important organism.

Our last guest lecturer was Dr. Kelly Robinson who taught us about plankton on Friday.  We learned all about how currents, depth, light and nutrient levels can alter plankton distributions.  The amount of biodiversity to be found in plankton is astounding and something that people don't often realize.  From fish larvae, to diatoms, to copepods, to jelly fish, plankton is quite incredible.

Lastly, we got to take a tour of the R/V Oceanus, OSU's large research vessel, on Friday.  We were able to see the main deck, the wheel house, and the big laboratory aboard the vessel.  The Oceanus will be leaving early next week for a four month research cruise down off the shore of California so it was lucky that we were able to squeeze in a tour before it leaves.

The R/V Oceanus heading out to sea a few weeks ago
for a short cruise 

This weekend is being spent catching up on sleep, exploring the coast, and studying for our upcoming exam next Tuesday.  The weather is beautiful here this weekend and we are greatly enjoying a change in pace from our jam-packed week.

Week 3- Fish!

This week we dove in to the subject of fish. Starting off strong, on day 1 we were introduced to our new professor, Su Sponaugle, and TA, Jessie Reimer. We wasted no time, powering through 3 lectures ranging from anatomy to habitats, and learned how to identify all kinds of local species of fish in lab using dichotomous keys.

Yaquina Bay Seining 

On Tuesday we made the "long" journey to Yaquina Bay, where we participated in a beach seine. That was a first for many of us. Anticipation grew as two students dragged the net in to shore. As soon as the water had drained, we were all scrambling to locate as many varying fish species as possible. We were able to find Syngnathus leptorhynchus (Bay pipefish), Platichthys stellatus (Starry flounder), Parophrys vetulus (English sole), Oncorhynchus keta (Chum salmon), and about a million different sculpin.

All captured specimen were measured for total length and counted, before being released (for the most part).

Bright and early Wednesday morning we readied ourselves for another education packed day, starting with a lecture in which we tried to understand otolith measurements in relation to age determination, followed by a guest lecture. Dr. Bob Cowen was able to take time from his busy schedule of leading all of HMSC to talk to us about rocky reefs and kelp beds. This lecture did an excellent job of expanding on the characteristics of the rocky intertidal shore that we had begun to learn the first week.

Newport Aquarium

In order to prepare for our short reports on a species of our choice, we headed to the aquarium next door to take a look at subtidal species. Everyone went their own ways, furiously sketching and taking notes on many species, and strangely all converging near the rockfish tanks and the shark tunnel. 

When we returned, we learned about 3 very related subjects, swimming, schooling, and migration.

Boiler Bay

For the first time in the history of the past 3 weeks, we had a real Oregon field day, rain and all. After climbing down into the bay, we dispersed and had our first try at finding fish in tidepools. Many were discouraged, though some struck gold, finding various types of...sculpin. Luckily we found a singular Xiphister artropurpureus (Black prickleback) that became the subject of many of our lab notebook drawings.

After our rainy excursion we dried off and made our way to a guest lecture by PhD student Jessica Luo, who taught us about the importance of plankton and size relationships between levels of the trophic system. We also took time to plan an observational study with the whole class that would be carried out the following day. We discussed methods of measurements of tidepool characteristics, planned data tables, as well as posed questions we would like answered in regards to the relationships between tidepools and their fish inhabitants. 

Strawberry Hill

On our last day of week 3 we were greeted by the sun once again and were able to conduct our data collections in comfort. We set out in groups of 3-4 and measured tidepool surface area, depth, rugosity, substrate cover, and attempted to capture and measure all the fish in each tidepool we worked on. It seemed that most people were enthused about catching fish, with the number of fish per tidepool varying from 0 to 21. The discovery of the day was a juvenile Cabezon (Scorpaenichthys marmoratus).

Here we see some students measuring for the surface area of the tidepool.

Sculpin!

Overall, we have had a great and adventurous week learning about fish. On to the next!

Written by: Raine Robison, Britnee Niehus, & Adam Brown