Summertime

IMG_0182It’s Summertime here at ORCAA and in case you haven’t noticed that means fieldwork.  We’ve got Amanda eavesdropping on porpoise here in Oregon, Selene is tagging whales in California (yawn, who would want to do that I ask, green with envy), Niki (while not technically in the field) is reporting to us from the turquoise Mediterranean, and our honorary labmate Leanna is in full blown seal tagging development.   I am, admittedly, not spending my summer in the field this year (probably just as well… I need some time at home with my data, my dogs and my sunflowers: read about previous summer field adventures during my M.S. here) that doesn’t mean that I’m going to disappoint you.  While my 2014 summer field season may be short, it’s just the beginning for 2014.

Solo, Southeast, Social Sounds

SL_sketch1For those of you who don’t know me, I finished my M.S. here at OSU in the Oceanography department.  I received an M.S. in Marine Resource Management with a focus on conservation.  I studied humpback whale communication in Southeast Alaska (you can read my M.S. thesis here).  I moved to Juneau in 2007 after traveling through wet sunny tropical Central America.  I thought Alaska was going to be a brief pit stop on my way to tropical living.  Little did I know that 7 years later I’d still be working in the inside passage, that it would have slowly become home to me, or that I somehow would have become a cold-weather biologist (I blame it on the whales).

So, I’m headed to Glacier Bay National Park on Monday to scope out a field site for my dissertation research.  For my dissertation I’ll be investigating the use of social sounds in humpback whales (how do social sounds fit into the general repertoire of humpback whales?) and what impact noise has on social calling behavior (Lombard effect in migratory corridors has been documented in Australian humpbacks , what might vessel noise do to calling rates on a foraging ground?). For this study I’m paired up with our own seal enthusiast Leanna Matthews (see her previous post for details on the other side of seal research), who will be looking at the impact of noise on harbor seals.  We’ll be sharing a field site, and more importantly we’ll be sharing a bottom mounted hydrophone array that we intend to use to localize vocalizing animals. Noisy-Neighbors_600px Concurrent with our acoustic deployment we’ll be making visual observations with a theodolite from a nearby elevated platform.  My job next week, is to investigate potential field sites, with elevated observing options, calm waters, seals, whales, and a sleeping location as far away from the bears as possible.  Should be easy right?

The glorious part?  I’m taking the trip Northward alone- Solo. Though I will be well tended to by GLBA biologist Christine Gabriele, if the weather holds I’ll be spending a night, or two, alone at our potential field camp.  Hiking around the island, observing whales and seals, and breathing in the cold wet Alaskan air all by my lonesome.  Call me old fashioned, but I still think that seeing an area is the best way to choose a field camp.  I’ve done my research, looked at velocity charts, bathymetry charts, and topo maps… but without seeing it, listening to it, and being there I don’t feel prepared to set our precious hydrophones on the bottom on the ocean and hope for the best.  So, solo I go.

But… like I said earlier, this short trip (a week total) is just the start my 2014 field season.

South

I think secretly every biologist imagines the day that something like this happens to them:

*Phone rings*

Me: Hello?

Brilliant Super Scientist (a.k.a Holger) *on phone*: Good morning! Did I wake you?

Me: No of course not (I’ve been awake for at least 15 minutes, and you don’t know I’m in my pajamas.  Who makes work phone calls before 8am?).

Brilliant Super Scientist: Good.  Do you want to go to Antarctica?

Me: Yes. Yes I do.

This actually happened. I’m going to Antarctica! This November I will head as far South as you can get.  I’ll be joining a crew of scientists on the Korean icebreaker the R/V Araon as we head southbound from New Zealand toward the Ross Sea.  My role will be the recovery  of a U.S. hydrophone that was deployed in the area last year. The hydrophone was deployed as part of an interdisciplinary project to track oceanographic and geologic (namely glaciers) conditions in the Antarctic.  The ocean is a noisy place, and lots of features biotic and abiotic contribute to the ocean soundscape. Human activity in the Southern Ocean is limited… making it an ideal place to use acoustics to study natural phenomena like ice (and whales… lets not forget that there are lots and lots of whales in Antarctica).

Noisesources

We will be at sea for almost a month, with a stop at one of the the Korean Research Stations at the midway point.  I don’t know all the details yet, but rest assured there will be many stories to tell.  Lastly, while this isn’t technically a “solo” expedition, I will be the only one from my lab and possibly one of the few native English speakers on the boat.  I spent the evening listening to Korean phrases, luckily I have a few months left to figure out how to say hello.

In short, it’s going to be a big field year for me.  Followed up by an intensive field season in the summers of 2015 & 2016 (with interns! I love interns!)- and all it cold weather places.  If you pair my upcoming trips with my past year of Arctic data analysis (Marvin The Martian was a Bearded Seal… remember?) then I suppose my dreams of becoming a tropical bioacoustician are out… or are they?

 

Stay tuned!

 

 

***all cartoons reprinted from www.michw.com an excellent blog about science, and comics***

Last Thursday marked our labs first successful DMON (Digital Acoustic Monitor) deployment of the spring! The DMON is a passive acoustic instrument that is capable of recording and processing audio in real-time. Friday, May 16th, a single DMON was deployed off the coast of central Oregon to target the acoustic signatures and monitor the occurrence of several high frequency odontocetes (specifically porpoise and dolphin), for frequencies up to 150Khz. Although abundant in the coastal environment of the central Oregon coast, because of their skittish nature, little is known on the behavior of harbor porpoise. Passive acoustic monitoring is an ideal method for collecting information on their presence and vocalization behavior with little habitat disturbance. In light of the planned development for wave energy converter (WEC) testing at the south energy test site (SETS) as part of the Northwest National Marine Renewable Energy Center’s (NMREC) grid connected full scale facility off South Beach, OR, this project is focused on gathering baseline data on high frequency odontocetes using the area. With this information we plan to assess the impact of WEC testing activities as the SETS facility is brought on line.

Pretty Cool Stuff! Fortunately, I will be deploying and analyzing data all summer alongside with Joe Haxel, who is a Research Associate for the Cooperative Institute for Marine Resources Studies at Oregon State University and the NOAA /Pacific Marine Environmental Laboratory Acoustics Program.

IMG_0077 IMG_0079 Dmon device!  

While a full-depth analysis of last week’s data hasn’t yet been accomplished, I was able to take a quick peek and MAN IT LOOKS GOOD! Both harbor porpoise and killer whale vocalizations were identified – sound bites and spectrograms will be coming soon!

Finally, All of this wouldn’t be accomplished without our friendly Newport neighbors, Marine Discovery Tours, who offer narrated ocean and bay cruises with naturalist guides and have the finest accommodations for viewing whales and other sea life.

Memory storage capacity on the high frequency DMON mooring is limited by the high sample rate (~480 Khz) and we therefore record on a 10% duty cycle which simply means “deploy, leave for 7 days, recover, charge, and redeploy” schedule.

Without the help of Marine Discovery Tours, we would not be able to deploy and recover so frequently! So if you plan on taking a trip or a visit to the Oregon Coast, you might want check out what trips are available to see our beloved Oregon marine life, and you never know, if you’re lucky you might just book the trip with all the DMON action and see it first hand!

Some assistance from the Marine Discovery crew!

I’ll be back with a full update on what the ORCAA lab has discovered from our DMONS in August! In the meantime, make sure you follow ORCAALab on Twitter for updates!