Garrison Bay – Roche Harbor – Reid Harbor
We first started off our day heading towards Roche Harbor to do a captain switch and pick up Val. Before we went into Roche Harbor we did a range (distance estimate) exercise. We had to guess how far an object was then Jason told us the real answer. Then we got to play with the radar and see the difference. Then I got to radio the Harbor Master to find out where we were going to dock while we waited for the rest of the crew!! While we were there the meat eaters got their fix. Once Todd showed up with the supplies we refueled the Gato Verde and headed out to Reid Harbor. Before we went to Reid we floated around Haro Straight hoping to see the Southern Residents. We deployed the listening hydrophone at a latitude of
48 degrees and 38.7 North and a longitude of 123 degrees and 12.72 West. We did see plenty of Harbor porpoies, but we heard no whales. So then we turned everything off and had journal club discussion which I lead. The title of the paper was “Underwater noise of whale-watching boats and potential effects on killer whales (Orcinus Orca), based on an acoustic impact model” by Christine Erber. During journal club we reached Reid Harbor and Matt and I started to cook. We did not see any whales today, but I am sure we will see them as the season goes on.
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Port Angeles – Garrison Bay
The stong ebbing in the Straight of Juan de Fuca kept us anchored at Port Angeles until lunch. We spent the morning working on our research proposals and calculating the calibration for the array of hydrophones. As the currents began flooding, we cruised along keeping an eye out for the Southern Residents. We deployed the listening hydrophone at 15:35 for a period of 15 minutes to try to hear the whales. After a day of searching, all we were able to find was a couple of harbor porpoises. Since people have been paying attention in the 1970s,the Southern Residents have always returned to these waters in April. So we should have a better probability of seeing them with each passing day.
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Snug Harbor – Race Rocks – Port Angeles
Today we had an early start so that we could get out to Port Angeles in hopes of catching whales coming in the straight. We stopped by Race Rocks along the way so that we could deploy a hydrophone and see if the current generator makes any noise.
We made two recordings and watched the stellar sea lions sun bath on the rocks nearby. There were also three bald eagles and a lot of harbor seals sun bathing as well.
After the recordings we milled around the area and deployed a hydrophone every once in a while to see if we could hear any whales in the area but we had no such luck!
Eventually we headed into Port Angeles to anchor for the night and plan our trip back to the islands tomorrow. Our new science goals that we discussed are to calculate the calibration for the hydrophone array, and work on the behavior exercise.
We also plan to read this week’s journal article by wednesday for a discussion on it. The biggest goal that everyone agreed on was to find those whales!
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FHL to Mitchell Bay
We slept in and left FHL at about 10:30 this morning. We cruised south through cattle pass then headed along the southwest side of the island. There was no wind for sailing, so after rescuing the sea from a lost red balloon, we calibrated the hydrophones in the array and did a behavioral data exercise involving Jason in the dinghy with uncooperative dry erase markers. After all that we headed to Mitchell Bay, where we moored for the night, anticipating a long and exciting trip to Port Angeles tommorow.
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Mitchell Bay to Griffin Bay
After a hearty breakfast of chocolate chip pancakes thanks to Hilary we had an early start from Mitchell Bay out into Haro Strait.
As we headed south in Haro Strait we ended up with a decent breeze from the SE which we took advantage of for some nice sailing.
We practiced tacks, chicken jibes and a hove to. The hove to was performed in between Discovery Island and Beaumont Shoals, the area we thought was the potential source of the mysterious clanging on the hydrophones at Lime Kiln and Orca Sound. Although we listened for 15 minutes we heard no clanging, but did hear the numerous container ships passing by. There was not a lot of wind and we were at slack low tide, so it may not have been the appropriate conditions needed to generate the mysterious clanging.
The breeze died down in the afternoon, but we did manage to ride what wind was available and the currents towards the south end of San Juan Island and into Cattle Pass.
We got to experience Cattle Pass on a raging flood. As we were sucked north by the current we managed to see 16 Stellar sea lions hauled out on Whale Rocks as well as cormorant nests on Goose Island.
Rounding the bend Captain Mike showed us how to anchor off the shore of American Camp in Griffin Bay where we worked on our localization exercise using the software Ishmael.
Altogether a sunny, breezey and pleasant day.
JW
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Prevost Harbor to Mitchell Bay
At 09:30 hours Val did a lecture on localization. Right after the lecture we did an exercise on localization involving the ‘clangs’ at the OrcaSound and Lime Kiln hydorphone’s (there are some msyterious clanging/clinking sounds that have been heard intermitently on the hydrophones this winter/spring). Our results indicated that the hyperbola leads to Discovery Island / Beaumont Shoals. This is just an estimate from where the sound source may be.
Then at 13:25 hours we had an encounter with three transients whales. We have IDed them as T10,T10B, and T10C. We first saw them at Mandarte Is. and they were traveling northwest. Then at 1400 hours they switched direction and started heading north towards Stuart Island. Then entire time they were traveling. We also found traces of whale poo! It was another interesting encounter with the Transients. It was a surprise encounter as well because they just popped out of the water and shocked us all! Finally at 16:20 hours we did the localization exercise with the array and our sound source on the dinghy. The position of the exercise was at N 98 degrees 34.902 W 23 degrees 11.881.
The data was uploaded to the Beam Reach computer and will be analyzed at a later date.
PV
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During this first week of our time aboard the Gato Verde we have been getting accustomed to life aboard, running the boat systems and working with our research methods and equipment. As part of doing our research we are getting in the habit of taking notes about where we have been and what we have done so that we have a log to go back to in the future as we start analyzing our data. In order to have a backup of that data and to share our daily experiences with you, we have been posting those science logs as blogs. To make it easier I have been uploading them as we have internet connection, but the reality is that we have all been taking turns writing the science log. So although it shows my name on the blog, in reality it is usually one of the students who have written the daily log. So that you know who wrote each log we will put their initials at the end of the blog.
We hope you enjoy following along with the research experience!
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Despite the amount of build-up, preparation and thought that went into our departure, I’ve come to find that I had very few concretely formed expectations regarding boat life. I now believe that even if I had formed expectations, they would have been thoroughly altered after the first two hours.
So many small things in life need to change to make life on a boat possible. At home, my mixed family live in a strangely laid-out mother and law house. My mom and I joke by calling our part of the house, the ‘Paris apartment’ because it is so small and compact. The concepts required for peaceful cohabitation in the ‘Paris apartment’ must be multiplied tenfold to be acceptable on the Gato Verde.
One of the first rules of a small space is keeping it clean and uncluttered, particularly in communal spaces like kitchens and bathrooms. At home that meant leaving my school books In a tucked away corner of the living room, vacuuming at least twice a week, and always, always neatening my room once day. Here, it means cleaning every communal area at least once a day, never leaving your personal belongings in a communal area and living out of a backpack.
Val, Hannah and Peter getting some work done in our main communal quarters
We get up in the morning and the first thing after breakfast is completing our chore rotation. The breakfast dishes have to be washed, the systems and holding tanks for water sewage and fuel checked, the deck squeegeed and wiped, the galley cleaned, the floors swept and the weather and currents for the day reported on.
In chemistry, the term limiting reagent refers to the substance which determines how much of the reactants can completely turn into products. On the Gato Verde, the limiting reagent which determines whether or not we can keep sailing during the day is black water. I’m not, of course, talking about the erstwhile security contractor but about sewage which is what drives us to a fully functioning harbor more often than freshwater, food, or fuel.
Depending on your frame of reference, the Gato Verde can be accurately described as palatial or miniscule. I tend to try to classify it another way. Emotionally, the space is miniscule. Physically, the space is palatial for a boat. It’s trying to live in a place where everyone knows where everyone is and what they are doing every moment of every day. There just aren’t very many places to hide and have alone time on a boat.
All of that said, however, the experience has been incredible. The ability to travel over water, close to it, powered by it and living in it is an absolutely awe-inspiring one and something I have never been able to experience the same way. From a research perspective, it is an amazing opportunity. We tie up every night in beautiful secluded places and breathe clean, cool air, smiling into the wind, as we drift among islands covered in trees. We’ve watched otters, bald eagles, buffleheads, cormorants, harbor seals, transient orcas, Dall’s and harbor porpoises, and elephant seals all while learning loads and laughing.
Who could ask for more? It’s just that lovely.
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Mitchell Bay, SJI to Prevost Harbor, Stuart Island.
After stopping at Roche Harbor for lunch and switching captains, we began sailing towards Stuart Island. At 14:00 we deployed the CRT hydrophone. The cable for the hydrophone was very sensitive causing interference and picked up a lot of flow noise. At 14:30, the hydrophone array was deployed.
There was still some flow noise interference, but it was much better than the CRT. As we reeled in the hydrophone array at 14:50, a group of Dall’s porpoises swam alongside the Gato Verde. There were 5-6 which included a hybrid with a Harbor porpoise. They were seen at latitude 48 deg. 43.08 min. N and longitude 123 deg.14.90 min. W.
students watching Dall's porpoise ride bow wake
While the Dal’s porpoises were riding around our boat, a male elephant seal poked his head above the water for a minute.
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Just two days after having our first encounter with the transient killer whales, another marine mammal drew our attention. We were practicing deploying the linear array of hydrophones and comparing the differences between it and a single hydrophone in the afternoon of Wednesday April 22nd. As Peter was reeling in the array, a group of 5-6 Dall’s porpoises began swimming in the wake created by the bow of the Gato Verde. They swam with us for a good ten minutes, easily surpassing the boat just to fall back underneath again. Everyone ran to the bow of the boat and sat on the trampoline (net) between the two hulls of the boat. There were a few times that the porpoises surfaced under the trampoline seemingly to get everyone to scream in startlement.
Having fun swimming with our boat.
There was one porpoise that was determined to be a hybrid between the Dall’s porpoise and the Harbor porpoise. The animal was gray and white instead of the custom black and white of the Dall’s porpoise. The hybridization between the two species of porpoises always seems to occur with a male Harbor porpoise and a female Dall’s porpoise.  The offspring is always seen with the Dall’s porpoises because the mother raises the young.
These animals are being massively hunted in the Pacific Ocean by Japan. When the International Whaling Committee banned commercial whaling, fisherman began focusing their attention on the Dall’s porpoise. More information about this animal can be learned at http://dallsporpoise.org/, and what you can do to help their plight.
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