Category: Citizen Science

December 2022 – Amazing Sounds of Humpback Whales!

In 2019 Terry (aka “the amphibiographer”) got a camera that can shoot 4K video. But in 2019 our 2008 computer was not fast enough to play the clips. This meant that we couldn’t actually review video or audio of the whales that Terry recorded. Further down the line we couldn’t coordinate it with my hydrophone recordings. So in 2021 we finally bought a 2019 computer that could actually play the recordings we’d made.  While listening to audio files of singing whales that I had recorded in October 2019 I heard grunts, growls, belches and squeaks that didn’t sound like a song. Are these these whales practising whale solfège? are they enjoying a good meal? or are they talking?  What a find! I hope you enjoy the underwater conversation as much as we did.

December 2020 #2 – Chain of Whales Feed Together

“I don’t know how many whales are out here! 6 of them – at least.” Terry is counting whales diving, surfacing, circling. They’re almost rubbing together they’re so close. I wonder: “Are they fishing? They must be fishing”.

It’s common in Alaska for humpback whales to form large feeding groups where each whale has a role to play. The iconic shot of all the whales surfacing together, mouths agape and pleated throats bulging is in every humpback whale documentary. Here in the Salish Sea we have yet to see anything like this group feeding buffet. Perhaps the schools of fish are bigger in Alaska or maybe the schools are in deeper water here and the whales finish gulping under the water. Even without the lunging at the surface half a dozen whales swirling and moving together is fascinating to see.

“Do you recognize anyone?” I ask camera man Terry as he zooms in on the action. “One is definitely ‘Zed’, with the chewed off left fluke.”

“Yeah” Terry answers “and I see Nick with them. See that white fluke? Could be Apollo or maybe even Neptune” Neptune is Apollo’s calf.

“Snouter!” I exclaim as a whale rostrum partially emerges from the water. Snouter is our affectionate name for a whale’s “face” also known by whale lovers as “pickeleface” because of the many bumps on a whale’s chin. Each bump contains at least one single sensing hair. Biologists are not sure what tubercule hairs are sensing but a good guess would be movement and vibration. Like the whiskers of seals and sealions humpback whales could sense schools of fish from the “trails” of disturbance their swimming leaves in the water. Tubercule hairs may even sense electrical charge or something more mysterious since they are rich in nerves.

Mother whales like to support their babies on their rostrums so they might have other functions as well – smell? There is an organ in a humpback’s chin whose function hasn’t been identified as yet. Could it have an olfactory function along with the tubercules? The deeper down the whale whole one ventures the more questions bubble out!

October 2020 Halloween Reveries with Whales

These are the sounds we were hearing on Halloween night. Terry and I anchored off Savary Island in our little old sailboat Blue Parrot. A lovely end-of-October eve on the Salish Sea filled our senses. I dropped my 2 hydrophones over opposite sides of the boat about 4 metres deep into 8 metres of water. We were watching the full moon rise through ribbons of cloud over the mainland mountains. Mars rose orange in the East. Brilliant Jupiter appeared over Vancouver Island in the South with smaller, dimmer Saturn a little further Southeast. Silver moonlight lit the sky. Below, a calm silky ocean shimmered, where the occasional belch of a seal or cry of a gull drifted across the water. Moonight revealed the mainland contours on one side of the Strait and Vancouver Island on the other as far as we could see. Blooms of neon purple, green, red, indigo, yellow and white flowered over both shores chased by muted boombiddy-booms as adults and children around the Salish Sea gathered to enjoy the Halloween fireworks displays.

CLICK HERE TO LISTEN to this whale who was quite far away – probably 6 – 8 km. You can hear the sea splashing against the hull. The odd creaks and knocks are the boat rudder knocking and the crackles are shrimp talking on the bottom under the boat! One whale is singing all the notes – the very high squeaks and the low growls. He is practising his song for performing in Mexico or Hawaii. The song becomes more complex and developed in December before the whales leave on their southern migration.

It was Magic – perfect for a Halloween reverie accompanied by the haunting music coming through from the hydrophones. was this music the eerie wails of long departed souls? or aliens trying to communicate with receptive earthlings? No. The ghoulish notes in my headphones were the eerie wails of eerie WHALES – Whales who are very much alive on planet Earth right now. This is the music of humpback whales you are hearing. They’re practising their song here in the Salish Sea of BC before they begin their long migration to Mexico or Hawaii or even Japan. Once they have perfected their song, which slowly changes every year, they will perform it in the warm waters of their southern destinations.

No human knows why humpback whales sing or what the whales are singing about. Only the males sing and a singing male will attract other males who will often join in the song. In the 5 years we’ve been listening underwater for vocalizing humpback whales in the Salish Sea, the end of October and beginning of November are the only times we’ve heard any vocalizing at all. It’s another whale mystery that, along with so many whale mysteries, only adds to the awe that 2 tiny, curious humans feel when in the presence of these majestic beings.

Undoubtedly whale biologists feel it too, even while they conduct precise, tightly structured investigations and analyze the data. Whales are so much like us. Mothers feed, care for, teach and protect their babies. Whales often hunt and feed together with every whale having a prescribed job. They socialize and play with friends. Male Humpbacks sing and compose complicated songs. Whales from different areas have different languages, cultures and food preferences. They communicate vocally and with body language. But here is where we begin to differ. Aside from the obvious differences of size and body shape whales and humans have evolved very different physiologies in order to thrive on land or in the sea. We both have 2 eyes and 2 ears but what whales see and hear both underwater and above the water is very different from what humans see and hear. We humans do not have nostrils on top of our heads or mouths that gape open to our bellies while consuming more than 1 ton of fish per day.

Here is the biggest mystery of all in my humble opinion: Whales and dolphins are conscious breathers. They have to be awake in order to breathe. But, like every other mammal, they must sleep and dream. So they have evolved a clever work-around to allow them to sleep and breathe simultaneously. All dolphins and whales sleep with only 1/2 of their brain at a time. One hemisphere is off in dreamland while the other is monitoring the immediate environment and initiating breathing in realtime. Have you ever woken in the middle of the night and hovered in that half asleep/half awake horizon where dream characters populate your consciousness but you are also aware that you are in bed? or that the click you are hearing is your digital clock? or that you might have to pee? Is that how whales experience their sleeptime? I wonder what kind of consciousness that produces in whales?

And here is the real kicker. Humans have been learning about our planet from other animals and plants forever. We also use their special gifts to help us thrive in the environments we share. We use a dog’s sense of smell and hearing to help us hunt. We use the hawk’s eyes to scan the landscape. We tune in to the alarms of birds to notify us of predators in the forest. Plants, trees and fungi transform minerals and vitamins in soil and water into compounds that our cells can use to keep us healthy.

So why sit here in front of your screen googling for information on the internet when you can be outside letting your dog take you for a walk through a park or forest? Have you sat with your cat on the porch or balcony or slightly opened window of an apartment? Can you observe what she’s observing? Lots of folks can watch flowers, or fish, or listen to birds for hours. Try it. The world you’ll discover is the world that goes on around us 24/7, mostly unnoticed by humans.

As the dominant large animal species on Earth today we get lost in our own human stories. We root out ways we are different from each other while we are surrounded by beings who are more different from us than any human is from any other human. And what a cornucopia of differences there is – so many ways of perceiving the universe, more than we can ever know. So many stories to explore. Find someone to share your adventures and stories with. You will be constantly amazed as well as amused – and healthier and happier in the bargain.

May 2020 #1 – Lockdowns!

There are many kinds of lockdowns. Some are physical. Others are emotional, psychological, spiritual. Covid 19 started as a physical lockdown. But the lockdown itself is affecting the mental, emotional and even spiritual health of the human global population. Prisons of any kind, even the kindest kind will do that.

The economic restrictions have killed the usual May tourist rush here on the Salish Sea. With the Canada/US border closed to non-essential traffic yachts from Seattle are barred. Vancouver area boaters are mostly staying away although a few have been sneaking into anchorages in Desolation Sound and the Discovery Islands. Fuel and pump outs can be accessed from some marinas but most limit traffic “from away” to the dock area – no mixing with the locals.

With tourists banned whale watching companies are advertising a shut down until Summer. However, some of the captains are still out on the water doing water taxi or other work. So they are sending reports to the network of any orcas, dolphins and whales that they come across. And some intrepid nature-loving souls are just hanging out with any cetaceans they find.

I’ve been anxious to get back on the water with the whales since April. The long winter and extended virus season have been opportunities for more research about other species of whales. All live intriguing and mysterious lives that we humans know so little about. I’ve also been corresponding with Jim Darling, co-founder of Whale Trust in Hawaii and an expert bioacoustician. I sent Jim the whalesong files that I recorded in November of 2019. Jim has done some fascinating research into the meaning of humpback whalesong, its function in humpback culture and its relationship to regional populations and migrations. The revelations of Jim’s research will help us to understand the role of whalesong in humpback relationships amongst males (who are the singers) and between males and females (who are choosing mates).

Jude and Terry find that the old law within the science hierarchy about not attributing emotional, problem solving and aesthetic capacity to any animal except homo sapiens still seems to be operating. Research projects which are granted funding follow the strict rules and metrics of stated factors and vectors with observations fitted into those boxes. This approach has proven very useful for specific information like population numbers, genetic tracing, food sources etc. But it is only one approach and has limitations. Other ways of gathering information ie: traditional indigenous knowledge and stories are barely acknowledged and not credited. Even in private conversation many scientists rarely let on that they might wander and ponder outside of their proposed Science-dictated hypotheses. We find this sad – mostly sad for the researchers who can’t explore their emotional and even spiritual connection to the beings they spend so much time studying.

Anyway, people have been observing the returning humpback whales mostly in Discovery Passage and venturing around Cape Mudge into Sutil Channel. It’s time to venture out for our first whale cruise of the season!

November 2019 #1 Whalesong!

“I’ll pump it up some more. Did you find the methylhydrate?” Terry is rummaging around in the starboard lazerette looking for a bicycle pump to pressurize the kerosene tank. The tank feeds an old Force 10 heater in Blue P’s cabin. It could take the chill off a 0°C morning. A little warmth, however stinky, would be appreciated. But the old heater won’t stay lit. The upside is that we are generating considerable body heat in efforts to get it started. Pumping up the tank and a couple of cups of hot tea get us out in the cold and under way.

Another frigid Autumn morning of no wind. At least old Lazarus (our ceaselessly ressucitated WWII Atomic 4 engine) starts easily. We’re off. Terry is scanning the horizon for whales “A blow! Inside Grant Reefs, south end.” Wow! Whales in the morning! That’ll wake you up fast! “Why don’t you drop the hydrophone to listen and I’ll shut down the motor?”

“I think I hear them Yes! There’s some low burbles – and higher squeaking – Woah! that was LOUD! A long high note – a growl” Jude does a bad imitation of a whale growl and hands Terry the headphones. He pulls them over his ears. The thrilling, haunting sound of whalesong floats through the hydrophone line from deep underwater.

“YES!” A huge grin spreads along his face.  Jude is leaning over the toe rail holding the hydrophone cable off Blue Parrot’s hull “I’m trying to keep the cable from knocking against the hull. It’s vibrating and making that low throbbing bass rumble” Blue P is still moving. Sailboats have a great deal of momentum once they’re in motion. A 5 knot NW breeze is pushing us SE. Movement of water over the cable causes the cable to vibrate. Finally the breeze calms and Blue Parrot slows enough for a clearer sound.

“Of course now I can hear the Comox ferry” Jude sighs “I hear 2 whales – there’s a singer close to us and 1  farther away – at least one. I don’t know where” We watch for the whales to surface to breathe but no blows are visible anywhere “Where are they? We saw that blow at 2:15 and now it’s 3:30. Can they stay down that long when they’re singing?”

The whales sing. We can hear repeated phrases and the range of vocalizations soar from deep grunts to mid-range groans to whoops, screeches and whistles. There are also percussive knocks or clicks. And those are only the sounds in the range that humans are capable of hearing! There could be subsonic and supersonic vocalizations that we humans would never pick up. Researchers can use spectral analysis software to get a visual representation of these sounds.

“Let’s send the recordings to Jim Darling. I can ask him if the whales are singing the same song in Hawaii” Jude enthuses “I want to know if some of our whales are wintering there.” Jim is a bioacoustician who co-founded Whale Trust. He’s based in Hawaii and Tofino, migrating between the 2 locations much like a migrating whale.  “It would be great to know which individual whales winter in Hawaii and feed here in the summer.” “And we should go to Hawaii to meet them there.” Terry adds. It is our dream to freedive in warm, clear water when the whales are singing, feeling all our bones resonating with their music.

After about 1 1/2 hours the singing becomes sparser and the sun is setting. “We’d better head over to Blubber Bay tonight. We can drop the hydrophone there and hear if they’re singing closer to Rebecca Rocks or even Texada.” So we head off under motor and jib. As we round Harwood Pt. we see several humpbacks splashing around Revecca Rocks. Are these our singers?

Maybe we’ll find out tomorrow.

A little information from  https://dosits.org/animals/sound-production/how-do-marine-mammals-produce-sounds/

HOW DO WHALES SING? Unlike humans, whales don’t have to exhale to produce sound.  Whales don’t have vocal cords either. Like humans,  humpback whales have a larynx. Instead of vocal cords they have a thick, u-shaped, ridge of tissue. This ‘u-fold’ serves the same purpose as our vocal cords. Adjacent to their larynx is a large inflatable pouch called the laryngeal sac. When Humpback whales contract muscles in their throat and chest, air flows between the lungs and the laryngeal sac. Alternating expansion and contraction of the lungs and sac drives air across the u-fold, causing it to vibrate and produce sound. The  vibrations vibrate through the whale’s body into the surrounding water. Changes in the laryngeal sac shape may alter the frequency and/or loudness of sounds produced.

Schematic diagram displaying a potential mechanism for sound production in baleen whales. Baleen whales contract muscles in the throat and chest, causing air to flow between the lungs and the laryngeal sac (pink tissue in the diagram). Alternating expansion and contraction of the lungs and sac drives air across a u-shaped ridge of tissue, the u-fold (yellow), causing it to vibrate and produce sound. Vibrations from the laryngeal sac (green lines) may propagate through the ventral throat pleats into the surrounding water as sound waves. Note: the respiratory tract of the whale is shown red, digestive tract in blue, and associate cartilage in white. Image credit: Dr. Joy Reidenberg. Adapted from Joy S. Reidenberg and Jeffrey T. Laitman. 2007. Discovery of a low frequency sound source in Mysticeti (baleen whales): Anatomical establishment of a vocal fold homolog. The Anatomical Record. Volume 290, Issue 6, pages 745–759.

 

 

July 2019 #3 They just keep jumping

NOTE TO READERS: We have chosen to use the word “herm” as a pronoun for any non-human animal whose gender is unknown to us.

A cloudy morning in a bay on Cortes. Two aluminum work boats buzz in at 9am. The skippers jump ship on a tiny islet to pick clams on the sandy beach at low tide.

We are charging batteries and studying the GH5 camcorder manual yet again so we get a late start. No backs or blows are visible in the immediate area as we motor out of the bay. But we hear reports of some lively humpbacks between Marina Island and Francisco Point so we head south over calm seas.

An hour later Terry calls from the bow “Blows! about 1/2 km ahead”. Three , maybe four whales are resting peacefully on the water so we slow down and ease closer. A seine boat is approaching the whales from the SW. He’s not slowing down. Has he seen the whales? “Try and get him on channel 16” Terry shouts “No, it’s OK. He’s on a parallel course. He won’t run over them them.” The seine boat doesn’t hit them but his heavy wake breaks over the sleeping whales. One large whale arches herm’s back and slams the water with herm’s tail. Pissed off? Maybe, but it’s over immediately. Back to sleep now.

Whales and dolphins sleep with one hemisphere of their brains at a time. The other hemisphere stays awake. They have to stay awake because, unlike humans, they are conscious breathers.  In fact researchers learned the hard way that if you tranquilize a whale or dolphin they will drown. Cetaceans have to be awake to breathe. Wakefulness of half their brain may also allow them to respond instantly to changes in the ocean environment such as the arrival of predators, or breaking waves. It is mind bending to imagine the consciousness of a being who lives simultaneously in the dreamtime and wakefulness. Wouldn’t we love to know!

The whales float and we float with them. We listen to the music of their breathing and Jude plays some didjeridoo. “I think there’s a baby with them” Terry whispers.  “Listen… a little “Poof” compared to Mom’s “PITCHOOOO”  And the dorsal fin is close to the blowholes on the little one…. Yup. Mom and calf – you got your wish Jude”

We send our sighting to the WOWS group line and soon see other boats coming to join us. The downside of this is that lots of boats, respectful though they are of the whales’ space, create lots of wake. Bobbing and rocking from boat wake makes it difficult to shoot video that doesn’t cause vertigo in the viewer. It’s especially debilitating when the whales are far from the ship so telephoto lenses must be employed.

“I think they’re waking up now” Terry observes. Unexpectedly one of the whales breaches. And they’re off! – fins slapping the surface water and lots of splashing activity. Jude drops the hydrophone and listens to hear if they are talking to each other. But all the boats are moving with the whales so wake and engine noise drown out every other sound. A light breeze springs up. It keeps shifting direction, forcing Jude to stay on the helm so we don’t run into any whales or other boats. It’s necessary to abandon the audio recording.

A few herring leap near our bow. The whales must have woken up to a school of passing herring and are taking advantage of the buffet lunch. When it seems they’ve gone under to rest for a while Jude decides to go for a brief swim while Terry grabs some lunch. On her way to get a towel Jude glances ahead “A whale – breaching” Jude cries. By now the whales are 1/2 km away. All thoughts of swimming and lunch are quickly abandoned as Terry scrambles for a camera and Jude starts the engine. It does feel a bit like a chase when the whales are active. All the boats circle around and move with them. But the whales don’t seem to mind. They continue fin slapping, tail lobbing and breaching – probably fishing on a herring school. In spite of the constant wake and movement of other boats in the water Terry manages to film some of the action. And they just keep jumping!

After an hour of hyper-activity the whales enjoy another rest so we don’t follow them. Time for lunch and a swim. But 20 minutes later they are breaching again! What an active bunch! Terry takes some still photos of the whales’ flukes for ID purposes. Later we learn who they are.

July 2019 #2 Whales in Whale Passage

When you make a dream come true and it’s everything you wished for it’s time for celebration and giving thanks to everyone and everything that made it possible. To be in this beautiful place on this little sailboat with its “cute” little old engine with whales visible in every direction – Jude and Terry are in humpback heaven! Sutil Channel is the primo place to be for Humpback Whales.

We have been anchoring or mooring Blue Parrot on Read Island where we’ve enjoyed meeting the locals – characters all. Living off-grid with only water access and no stores makes building your own home and bringing in supplies a challenge. Driving the kids across the Island to school on logging roads in Winter snow is reserved for the truly committed year round residents.

We haul our inflatable dinghy up on the government dock to repair a leak in the port pontoon. Two coats of Marine goop should do it. A 60-something character named John who’s been everywhere on the west coast from Alaska to Antarctica regales us with tales of tattered sails torn in the fresh winds of Johnstone Strait and mammal eating Transient orcas diving under porpoise pods and emerging with tender babies to gulp down for lunch. They aren’t called “killer whales” for no reason!

The winds really rip across Read Island into Evans Bay. These are the outflow winds sucked out of the deep waters and towering peaks in Bute Channel. We are fooled by the brisk breeze in the Bay but it weakens to a paltry puff out in Sutil Channel.  We turn north into Whale Passage where a few boats are fishing – always a good sign when looking for whales. “There they are!” Terry points to 3 humpbacks feeding along the shore of a Penn island. They are shallow diving. “Look! The middle one is fin slapping. Maybe herm is trying to shock the fish”  We are motoring through the passage in their general direction  “Oh, a breach!” The lead whale has breached, maybe to check out the scene visually. Maybe to let us know the 3 whales are there. Herm breaches again as the 3 swim around the point of the island. Is herm showing us their trajectory since we are behind them – we are 300m back. They round the point traveling faster away from us.

Time for a swim. It’s HOT in the relentless summer sun. Blue Parrot is open to the weather. We don’t have a bimini for shade or a dodger for rain or any other kind of protection. Jude jumps off the bubble boat for a refreshing dip – with clothes still on – a strategy that ensures constant cooling as the clothes dry on her skin. She is enjoying the very cold water as recreational boats pass with people sitting in the shade of biminis. Commercial whale watching zodiacs zip along at 25 knots filled with folks in survival suits. Jude splashes around for a good 10 minutes wondering whether the whales will get interested in a human splashing around in the water. But they don’t. sigh……