Friday | July 1st
September 10, 2011 by admin
Filed under InnerSea Discoveries
The Green Flush and an Ice Swim
Speaking of plankton, I awake and visit the head (bathroom) without turning on the light and shout “Wow” several times, loud enough to awaken my cabin-mate. I couldn’t contain my enthusiasm.
You’ve heard of the green flash? Been there, seen that. You have to see the green flush! I will have to take a picture of it next time I see it. You see, our septic system works on sea water. In just a few liters, you can have tens of thousands of microscopic organisms. On rare occasions, the entire bowl in the head is awash with a blue-green light. When the head is flushed, hundreds of miniature lights sparkle and swirl. It’s as if you are in the beginning of a Star Trek or Star Wars movie with distant stars moving quickly past the camera.
I run out of my room and start inviting my fellow shipmates over to see it, but it sure does take a lot of coaxing to get anyone interested. Perhaps it’s because the area inside our bathrooms are so small…standing in the center with your arms akimbo is all the room you have to maneuver.
What I learned years ago is that the light is caused by a luciferin-luciferace enzymatic reaction, a luminescence of a biological kind, otherwise known as bio-luminescence. If I remember correctly, the organisms that cause this are often Noctiluca, Gymnodinium, Ceratium and Gonyaulax. What’s amazing is that 80% of the organisms that live in the bathy-pelagic or deep water realm of the ocean exhibit some type of bioluminescence in order to attract mates, lure food or just communicate amongst each other.
The M/V Wilderness Discoverer motors into Endicott Arm to the Dawes Glacier. A commotion suddenly erupts at the stern of the vessel. A large group convenes near the swim step for the newest rendition of the Polar Bear Club. I grab a pair of swim trunks, and squeeze my way forward to the platform. I dive in and swim out to the nearest “growler” ice-berg. I climb up, imitate a harbor seal by laying down on the ice and look back at the ship. The water clears out of my ears and I hear all the cheering and invitations to join folks in one of the ships hot tubs. I dive back in and enjoy the sensation of the thirty-something degree Fahrenheit water.
In case you haven’t guessed, I am a pagophilic or ice-loving mammal just like the walruses, seals and whales that inhabit waters in Alaska. I may not have as much blubber, but the feeling of cold water is fabulous, like drinking 20 cups of coffee without having any jitters. A clean, invigorating sensation, for sure!
The other highlight of the day is motoring up Fords Terror, a spectacular fiord that John Muir named “Many Yosemite”.
In his book “Travels in Alaska” Muir wrote: “…we found ourselves on a smooth mirror reach between granite walls of the very wildest and most exciting description, surpassing in some ways those of the far-famed Yosemite Valley. We drifted silent and awe-stricken beneath the shadows of the mighty cliffs…a grander array of rocks and waterfalls I have never yet beheld in Alaska…one of my brightest and best of all my Alaska days.”
Small boats are the best way to see so much grandeur in so short a time. Waterfalls were everywhere along with sheer cliffs and outstanding scenery. Fords Terror would be well worth a longer visit, preferably several days via sea kayak.
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