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View from Above Scripps Canyon
Jun 29th, 2008 by Mikey

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Jackie and Dave En Route to Scripps Canyon….
Jun 29th, 2008 by Mikey

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Video: Mikey and Jackie on Scripps
Jun 29th, 2008 by Mikey

–Click on link below to view:

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Into the Abyss: Cathedral Heights, Scripps Canyon: North Branch
Jun 29th, 2008 by Mikey

Date: 6-28-08

Location: Cathedral Heights, Scripps Canyon, North Branch

Times: 11:34 am/1:56 pm

Max Depths: 147 ft/106 ft.

Mix: 27%/34% [PPO: 1.5]

Temp: Bottom: 54 F./Top: 64 F

Surface Conditions: flat in the morning, a few winds waves in afternoon

Viz: 40 ft +

Critters Seen: Painted Greenlings, Male and femail Sheephead, Yellow, Orange and Red Volcano Sponge, Red and Gold Gorgonians, Noble Dorids,  Huge, Giant Spined Sea Stars, Blood Stars, Blacksmith fish, Senoritas, Black Eyed and Blue Banded Gobies, Rockfish, one tiny Festiva tritonia

Dive Buddies: Dave, Jimbo, Charlie and Jackie

 

Remarks:

 

Composite account of both dives:  [Actual: #760 + #761]

 

After a slightly late start, we motored out under slightly grey skies to Scripps Canyon, North Branch and dropped anchor.

Apparently I still need practice lining up the little icon of the boat  with the exact spot  on the GPS because while it showed 65 ft. of depth when I asked Charlie and Jimbo to drop anchor, we must have drifted a few critical feet West and we ended up dropping it over the edge of the canyon, which was not my intent.

I feel bad for any marine life that may have gotten damaged and it’s a bitch when it comes to bringing up all 300 ft. of anchor line, as Charlie and Dave can probably tell you!

Oh, well: practice makes perfect I guess.

It was decided that Dave and Charlie would splash in first as the ‘canaries in the coal mine’ and report on conditions.

 

50 mins later, they were back, ranting and raving about 40 ft plus viz on the canyon and swell sharks in the crevices.

 

As you might imagine, it didn’t take much further prompting for Jimbo, Jackie and me to get suited up at that point.  We looked like a video run on fast forward as we geared up.

 

As we descended down the anchor line, the top 20 ft were  a bit murky, but when we hit 50 ft or so, everything opened up and we were stunned to see 40 ft. plus, nearly tropical visibility, with the anchor dropping away out of sight down over the canyon rim into the blue-black abyss far below us.

The plan was simple: drop down and head South in the canyon itself, which is exactly what we did.

 

We followed the anchor line down: 100….110….120….130…140….147….before leveling off and heading South. My  Nitrox computer dutifully reminded me to ascend a few feet to keep within my MOD, so we did: up to 140.

It’s frighteningly easy to get deep on Scripps. You can hit 150 ft. in the blink of an eye. You can hit 200 without even trying.

 

And trying to do justice to the stunning beauty of Scripps Canyon in nearly unlimited viz is not easy. You just had to have been there.

 

The top levels at around 70 ft. or so, are sandy ledges with large clumps of lush Gold Gorgonians waving gently in the current.

 

As you drop past 90 ft, the sandy ledges give way to steep canyon walls, which form terraces jutting out about 5 ft., before giving way to more terraces below them, dropping away almost endlessly into the nearly bottomless abyss below.

Huge schools of Blacksmith  flit back and forth both above and below you. Looking up towards the surface you can see them silhouetted against the shimmering,  slivery surface, high above.

Occasionally, a long ‘freight train’ of Sliversides will come hurtling up from the black abyss and tear right by you.

As we settled in at our max depth and headed South, we could make out large crevices, both vertical and horizontal, carved into the steep rocky faces.

The entire face of these cliff are a riot of color glowing in your lights: bright yellow, orange, red and pink from the presence of Yellow, Orange and Red Volcano Sponges, along with Strawberry anemones and the occasional splash of bright yellow from a Noble Dorid.

We kept Jimbo busy  taking pictures: hey: over here! No, over here! Shining our lights on interesting things as we came across them.

 

At one point, Jackie and I came across an absolutely huge Giant Spined Sea Star………this puppy must have been 24 inches across, clinging to the steep face of the cliff and we signaled Jimbo to come over and capture him on camera.

 

Peering into the vertical crevices along the rock face revealed further horizontal ledges way back about 3-5 ft., inhabited by Black Eyed and Blue Banded Gobies which glowed electric blue neon on the beam of our lights.

Huge Rockfish hung bizarrely upside down in the water column, peering at us strangely as if we were the weird ones for being upright!

As in mountain climbing, where they tell you to never look down, you avoid looking down or straight up, because vertical immensity of Cathedral Heights here can give you temporary vertigo when you realize you are truly suspended in a blue-black abyss, with only the canyon walls to give you a frame of reference.

I had that same odd, salty  sensation  of ‘blood’ in my mouth, but reminded myself it was just Mr. Narcosis murmuring to me, turning small drops of salty water into ‘blood’ at extreme depth.

We began gently climbing towards the lighter, airier depths and the vertical canyon walls gave way to the more familiar terraces dotted with Gold and Red Gorgonians.

More 50 ft. long ‘freight trains’ of Silversides roared by, startling us before disappearing around the corner as fast as they had appeared.

 

We hit our agreed upon turn around point and began heading back towards the anchor line.

 

Charlie had been kind enough to attach a flashing green tank light to it at around 80 ft., which proved entirely unnecessary in the nearly tropical visibility.

Surprisingly, we had almost no deco obligations, so hung around the anchor line at around 60 ft. for a while, while Jimbo took more photos.

I can  see why photographers have been known to run out of gas at depth, because it seems like there is always ‘just one more thing’ to photograph—especially on Scripps—just one more Goby, one more Blood Star, just one more glowing yellow Dorid.

You have to have a real sense of discipline to terminate the dive and head up while you still have gas to make it—but, Jimbo’s a very disciplined guy and he came up with the rest of us, albeit reluctantly—like the rest of us.

It was almost wrenching to have leave the underwater paradise of Scripps Canyon in 40 ft. visibility, with its lush tropical colors slowly fading from view as we ascended up the line towards the surface.

At the safety stop, Jimbo and Jackie seemed to become immersed  in discussing the various  merits of Immanuel  Kant vs Jean Paul Sartre’s Theory of Existentialism and I became bored and ascended by myself to the boat when my deco  obligation was up.

Later, back on deck after we all had unsuited, still babbling excitedly about the gorgeous conditions on the canyon, we asked Jimbo what in the hell he had been trying to tell us at the Safety Stop….turned out it was:

“On a clear day, you can see forever.”

 

Dive safe, everyone……….

 

Mikey 

 

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Icy, Undersea Volcanoes……
Jun 26th, 2008 by Mikey

A research team led by the Woods Hole Oceanographic Institution (WHOI) has uncovered evidence of explosive volcanic eruptions deep beneath the ice-covered surface of the Arctic Ocean. Such violent eruptions of splintered, fragmented rock–known as pyroclastic deposits — were not thought possible at great ocean depths because of the intense weight and pressure of water and because of the composition of seafloor magma and rock.

Researchers found jagged, glassy rock fragments spread out over a 10 square kilometer (4 square mile) area around a series of small volcanic craters about 4,000 meters (2.5 miles) below the sea surface. The volcanoes lie along the Gakkel Ridge, a remote and mostly unexplored section of the mid-ocean ridge system that runs through the Arctic Ocean.

See here for more: http://www.ocean.com/article.asp?locationid=1&resourceid=11032&ProdId=&CatId=1&TabID=&SubTabID=

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Diatoms
Jun 24th, 2008 by Mikey

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FYI: Phytoplankton Content of San Diego Coastline As Determined by Recent Water Analysis
Jun 24th, 2008 by Mikey

SAN DIEGO:

Oceanside Pier: P-n rare; mostly dinos (Lingulodinium abundant, Prorocentrum common) and a few diatoms in low numbers.

Scripps Pier: P-n present; diverse mix of diatoms (Chaetoceros common) and dinos (Ceratium, Lingulodinium, Prorocentrum).

Imperial Beach: P-n present; mix of diatoms (Thalassiosira,Eucampia common) and dinos (Prorocentrum common).

Abbreviations/Terms: Dinos = Dinoflagalettes (P-n) = Pseudo-nitzschia and Al = Alexandrium) (Abundant = >=50%; Common = 10-49%; Present = 1-9%; Rare = <1%)

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Unusual Dive Report: Jackie Patay
Jun 22nd, 2008 by Mikey

While Guest Dive Reports are always welcome on this blog, I don’t run across many that stand out.

This one, however, is highly unusual in that it appears that Jackie was caught up in some sort unusual ‘upwelling current’ from the deeper parts of the canyon that was noticeable both visually and temperature-wise.

This report was so unusual that I have forwarded a copy to an oceanographer at Scripps Institute to get his opinion.

Read it and see what you think.

You don’t get too many dive reports like this, especially not ones ending with an enounter with a Giant Sea Bass!

Mikey

**********************************************************

LJ Shores

Date: 6-21-08

Time: ~ 11:45 am

Temp: 53

Viz: 20′ – 30′ +

Surf: ankle/shin slappers

Ever ride a thermocline?

The Shores threw a wild curve at me today – something I had never seen or been caught up in before. I am still stunned – it was so very cool.
Dropped shallow and did the usual tour N/S Vallecitos/canyon.

There is a ton of “flora” scattered all over, right into the canyon. The mixing of warm/cold water was also scattered – good viz, although a bit on the yellow side.

The dive was basically uneventful, until I headed back out of the canyon, just over the ledge.

I stopped to look at a baby Horn Shark; suddenly, anything that wasn’t tied down, started flowing back towards the canyon, I mean everything, as far as I could see. Strangely though, it was a weak “flow” and I was able to gently kick against it and continued E. I don’t know if it was a rip or not, but I’ve never seen everything move like it did.

Then I felt some pressure behind me, I turned around to see an enormous “wall” of clear blue water coming up and over from the depths of the canyon. I watched it getting closer and closer – all along the canyon, and as high as I could see. It was like looking into another aquarium that was moving towards me. I think I blinked a few times.

It then “hit” me, and I let it gently push me towards the shallows ( 25′ ). Half my body was in cold clear blue water, the other half in yellowish warmer water, you coulda drawn a line. For lack of a better description, I was riding a massive thermocline with 35′ viz in it. Just wild!

As I moved along, I could see it pushing all the plant matter out of the way – and leave a very clean trail behind, with all the Sanddollars exposed again. Then it dissipated. The viz improved a bit more and had a nice blue tint. I kinda just hovered there for a while in disbelief. There was no other current, surge, or anything else going on.

Then, as I turned, a 4′ 1/2′ Giant Sea Bass gently swam by, and then a school of Surf Perch surrounded me. Then I came across Bat Ray city, the large ones, feeding. Lots of Stingrays and small Halibuts, and what looked like Sole.

I stayed in the shallows forever, just grinning. Wow.

And there are those who say the Shores is boring :)

Jackie Patay

******************************************************************

From Dr. Paul Dayton, of Scripps Institute of Oceanography:

“That is really cool. How neat to experience something like that. It must have been a huge bore as we have all been aware of the normal internal waves in which the cold water and the visible transition move up and down a few feet, but the canyon must have focused this. This is the type of natural history experience that happens once in a life time. I am not sure any of us have experienced anything like it. How good of her to share that – it is the type of thing that belongs in a wider scientific audience.”

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Video Footage from ‘Burma Rd’ Dive Report
Jun 22nd, 2008 by Mikey


Here is some excellent video taken by Brad from our Saturday Yukon Dive [DR Title: Burma Rd + Dolphin Invasion], including some dolphin

footage and a nice music soundtrack.

His dive buddy was Merrianne with guest appearances by Jimbo, 2nd Mate Kelly and Mikey onboard the Scuba Do.

http://www.youtube.com/watch?v=4HRXaFX8HmQ&feature=email



Mikey

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Photos Highlights from ‘Inside the Yukon: Burma Rd’ [+ Dolphin Invasion] Dive Report:
Jun 21st, 2008 by Mikey

–Thanks to James ‘Jimbo’ Swanson!

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