9/29/12

#19: Tinker, Sailor, Researcher, Spy

Yes, a play on the title of the 2011 movie "Tinker, Tailor, Soldier, Spy," to describe a day in the life of a right whale researcher. The first job of the research day is to check the boat (our beloved Nereid is a 29' Dyer), making sure all the fluids are full and the engine is in mechanical order for the day. Then, once the team has loaded and stowed our gear onboard, one of us takes the helm to safely navigate the Nereid out the Lubec Channel, across the Grand Manan Channel and into the Bay of Fundy- a journey of two hours in duration, sometimes in thick fog. During our beeline transit into the Bay, our team is at work and on watch for marine creatures. Once we get into the Bay, we start our tracklines and hopefully encounter right whales, when we can essentially spy on their behavior.


The Nereid heads out with the sunrise for a day of surveying! Photos: Marianna Hagbloom

During a survey earlier this month, our research was interrupted by the few words you never want to hear or say on a boat; "I smell something burning!" Monica, our most experienced tinkerer and boat captain, was on watch; I called to her and told her what had been said.  She scrambled back from the bow to troubleshoot the problem. We used our noses to try and isolate the source of the burning smell - was it electrical, rubber, plastic??? Kelsey was at the helm and quickly shut down everything electrical- the engine, computer, radar, GPS navigation unit. As we lifted up the engine hatch, the smell became much stronger.


Monica and Moe, determining the source of the problem.

We narrowed down the source of the smell to either the alternator or the alternator belt. After more tinkering and discussion, we realized that the alternator belt was rubbing up against a bolt on the engine. Luckily for us, the weather was very calm, and although we really didn't want to start taking things apart at sea, we didn't want to lose the rest of our survey day to motoring home early, or worse- the need for a tow.  As Monica says, there are a few breakdowns you don't want to get towed in for, and one of those is for the alternator belt. Always prepared for the worst, we never leave the dock without a variety of extra parts on board. We found our spare alternator belt and consulted our log book for the details of the last time we had to change the belt, back in 2009. Monica is an ace with a wrench, but had not changed the belt on the Nereid before, and I am an amateur at best with a wrench, but had helped with the last belt replacement in 2009.  And so we put our knowledge together while the rest of the crew napped, ate, and/or looked on with amusement admiration. With a little bit of straining, grunting, and mild cursing we managed to remove the old belt, which turned out to be quite worn on closer inspection.


An unidentified crew member finds a comfortable napping spot.

The new belt was fitted into place around the pulleys, making sure that it was well-seated in the grooves. When Kelsey started the engine and revved the Nereid back up to speed, the smell was gone! Everything was working well. We lost just under two hours of survey time due to our breakdown, and although the right whales eluded us for the rest of the day, we were pretty pleased at that our tinkering talents had let us keep sailing for the day. If you want to learn more about alternators and alternator belts try this link, however, always easier in a garage than at sea!


Monica and Moe get the new belt in place, and we're good to go!

- Moe

9/26/12

#18: A Special Day in the Bay

Our days at sea would not be possible without the support of our funding partners. One of the greatest joys of our field season is to share a day at sea with right whales and our donors, who rarely get the opportunity to enjoy time with these whales! On September 14th, we had the distinct pleasure of taking two of our partners from Irving Oil- John Logan (Project Manager) and Carolyn Van der Veen (Public Affairs)- into the Bay of Fundy.


John Logan on the Nereid.

John has been involved in our research, conservation and education efforts for right whales since the partnership began in 1998.
In fact, it was John who first contacted us that year to investigate how we could work together on the issue of reducing the risks of vessel strikes to right whales. The unlikely partnership of biologists and an oil company working together has resulted in a conservation success story for right whales in the Bay of Fundy.




Carolyn Van der Veen on the Nereid.

Carolyn has been furthering the understanding of right whales through several right whale education campaigns online. Check out the "Fluent in Whale" game on Facebook, an inspiring video about our partnership on YouTube, and information about the program on their corporate website. Irving also promotes our Right Whale Research Program at their retail outlets in the Maritimes and New England.





September 14th was a less-than-bluebird day, but our guests were game for adventure on the choppy seas that the wind was stirring up. And wouldn't you know it that we observed the highest number of right whales in one day for the season? We had eight to ten individuals, many of them new for the summer! Some old-timers appeared, like Manta (Catalog #1507), Dollar (#1332), and Meridian (#1403). We also sighted three   younger whales; Catalog #3832, #3890, and #3808 (our first whale of this season).


Meridian, named for the wrapping head scar that remains from a severe entanglement event. Photo: Marianna Hagbloom

While being jostled around on the R/V Nereid, Amy Knowlton was able to snag two very valuable photos of Catalog #1331. We don't know when #1331 was born, but we added him to the Catalog in 1981. He was last observed during an aerial survey on November 26, 2011, when his right flank revealed new propeller cuts from an encounter with a small boat. Although we only caught a brief glimpse of #1331, his scars seem to be healing well! This sighting was an appropriate reminder that even though we've made enormous strides in reducing the risk of ship strikes from large vessels, educating mariners who sail on small boats about right whales and how they are vulnerable to encounters is still a relevant and important task.


The first vessel-based photographs of Catalog #1331's propeller scars show healing. Photo: Amy Knowlton

Before we began our transit back to land, we came across three humpback whales who put on a show for our guests! Have you ever seen two humpbacks breach simultaneously? Then you can imagine the amazement of everyone on the Nereid when all THREE humpbacks breached within less than one second of each other! Difficult to capture, below is a collage of this incredible event:



Three humpbacks breaching together! Photo: Amy Knowlton

We had such a rewarding day on the water that there really couldn't have been a better way to say thank you to our funding partners for their willingness to collaborate with us, and for the work they allow us to do. There will be a story on the success of right whale conservation and steps for future efforts in the Saint John Telegraph Journal on September 28th by journalist Jenifer Pritchett and photographer Cindy Wilson, who also braved the elements with us to learn more about right whales in the Bay of Fundy. Keep your eyes peeled for the article if it's distributed in your area!

- Marianna and Moira

9/21/12

#17: Eavesdropping on Mother/Calf pairs


There’s something about being on an all-female research vessel, searching for a right whale mother and calf pair in the grey palette of the Bay of Fundy, that makes you think about our gender. More specifically – motherhood. How exactly does the relationship between a mother and her calf evolve? Can this rate be observed (and subsequently measured) from studying their behavior and vocalizations? As we round out our third year of a five-year project  led by Susan Parks (a Professor and bioacoustician at Syracuse University; check out the Parks Lab Website and read about updates on their Field Blog) and the Northeast Fisheries Science Center (NEFSC), we are finally starting to accrue data to tackle these questions. Our research goal: study the interactions between right whale mother/calf pairs over the calf’s first year. We accomplish this by following them from their winter calving grounds off Florida and Georgia to their springtime feeding areas off Massachusetts, and finally to their summer mating grounds here in the Bay of Fundy (BOF). Our research tools: concurrent behavioral and acoustic sampling from a small boat platform. Our current BOF subjects: Catalog #3390 and her calf. 



The acoustic team from Parks Lab at Syracuse University and NEFSC in the Bay of Fundy, listening to right whale mom #3390 and her calf! Photo: Monica Zani

#3390 is the the only mother sighted thus far in BOF. Researchers aren't sure of her birth year, but she was first observed in 2003 as a juvenile. She has suffered three fishing gear entanglements, leaving her with noticeable white scars on her peduncle (tail stock) and flukes. Her calf, an almost-weaned male, is her first known offspring. Thus far in our field efforts, I’ve had the opportunity to follow #3390 and her calf three times in the southeast U.S. calving grounds during the winter, and now this summer, three times in BOF. 



Notice the increase in separation distance between #3390 and her calf from Southeast U.S. to BOF.

Deploying hydrophones (microphones designed to record or listen to underwater sound), we are able to eavesdrop on the subsurface behavior of these elusive individuals. In the southeast, we recorded roughly 12 hours with #3390 and her calf. The number of potential calls we can attribute to this pair are in the single digits. So far here in the northeast, we've recorded just shy of 5 hours with #3390 and her calf. The number of potential calls we can attribute to this pair are well in the two hundreds!

It's clear that the lapse in time has revealed a more vocal mother and calf pair. Time has also shown a larger calf, now bulked up with his mother’s fat reserves; greater separation distances between the mother and her calf, as the mother feeds on scattered zooplankton patches and the calf prepares to be weaned; and more interactions between both the mother and the calf with other right whale individuals in the population. 



Spectrogram (visual representation of acoustic signals) of 3 calls produced by the calf of #3390. Time is represented in seconds on the horizontal axis and frequency in kilohertz on the vertical axis.


Combining concurrent acoustic and behavioral data, we can start to ask questions about what exactly these vocalizations are revealing. Are they reunion events, as the mother and calf find their way back to each other in the void of the ocean? Are they separation events, as the calf prepares to leave the mother and explore? “Be back by 10PM, Mom.” Or perhaps they are teaching events, as the mother tries to pass on the right whale repertoire so the calf can communicate with the population at large? As the BOF season wraps up, we're looking forward to analyzing our data to shed some light on these questions. The more we understand a year in the life of right whale mother/calf pairs, the more we can do to ensure their protection. In the interim though, we’ll keep listening…  

-Sarah Mussoline
Research assistant, Woods Hole Oceanographic Institution 

9/19/12

#16: When There's a Gale...

...don't set sail!

Today, there is a gale warning in effect for our region. The current marine forecast is: "Wind south 25 to 35 knots, diminishing to northwest 15 to 20 knots this afternoon, then veering northerly 20 to 25 knots near midnight." We've been experiencing gusts from 25-38 mph since last night! As if that wasn't enough to keep us out of the Bay, there was a torrential downpour this morning that lasted for hours.


Plenty of whitecaps this morning.


Here's a short video clip to demonstrate these strong gusts:



-Marianna

9/15/12

#15: Two new whales for the season

When the crew wakes up at 5 AM in September, it feels like the dead of night. It is much colder than any August morning, and the sun doesn’t appear until around 6 AM. Yet we were thrilled to get an early wake-up call on September 12, after four consecutive days on shore. The winds had settled from the passing weather systems, and there was no fog in sight. The R/V Nereid headed out at 6:15 AM hoping to find more right whales.

The first whales we encountered were Catalog #3390 and her calf. Her calf might be the best documented baby right whale, ever. Despite the fact that we have seen them regularly this season, we still enjoy photographing and watching the pair. Seeing a healthy mom and calf in the Bay of Fundy is an encouraging sight when working with a critically endangered species.


#3390 and her calf, traveling together. Photo: Amy Knowlton

Later in the day, we came across two more right whales that we haven't seen yet this season- Catalog #1332 and #1981. Both individuals had sloughing skin on their heads, but #1332 (named "Dollar" for a scar on his head that looks like dollar sign) had significant coverage on his head and body. The skin of a right whale sloughs off pretty easily, and with a 2 cm skin layer, they have a lot to spare!

New England Aquarium researchers use the condition of the skin as one of the parameters to visually measure a whale’s over-all health. Skin will come off naturally if an individual breaches or rubs against another individual. However, when the sloughing of the skin is excessive, lesions appear on the skin, and/or orange cyamids are present (as opposed to white cyamids), it is possible that the whale is less healthy than usual. Before drawing conclusions though, it's important to look at the other parameters for a health assessment, which are: the body condition (the fatter, the better!), rake marks (two or more parallel lines) around the blowholes, and cyamids around the blowholes.



#1332, "Dollar", with mud on his head and skin sloughing on head and body. Photo: Kara Mahoney Robinson

While Dollar still looks plump, he is exhibiting some minor rake marks by his blowholes in addition to the skin sloughing. Perhaps Dollar's health will improve during his time in the Bay of Fundy. The mud on his head is an indication that he's going down to the seafloor to feed, so maybe he just needs a few good meals! Hopefully our team and other research teams will see him often during surveys this fall and winter so that we can monitor his health.

We saw several other species during our survey. Near the end of the day, we spotted a pair of humpback whales and many fin whales. We spent some time watching a group of five fin whales traveling together, which is always a treat. Fin whales are the second largest animal ever to live on earth, next to the blue whale. There was plenty of bird life as well, including puffins, shearwaters, phalaropes and storm petrels.

Hopefully the chilly September weather will attract more right whales to the Bay. Last year, the field season ended with lots of whales after a quiet August. Perhaps as the weather cools down, the whale activity will heat up!

-Maria Hall

Check out Maria's first blog