Cape Ann Offshore 7/28 report

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MSilvia

Contributor
Messages
4,750
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30
Location
Shelburne, Vermont USA
# of dives
200 - 499
On monday, Mer and I did some dives off her dad's friend's 28' boat out of Newburyport, MA. After some initial trouble with my car (which turns out to be due to either a cracked block or a blown head gasket... ugh), and with weights (which I forgot in the temporarily abandoned car and had to replace at McDougal Sales and Service in Salisbury (978)388-1234) we headed toward Cape Ann.

Thanks to Mer's navigational prowess, we arrived in 30 fsw off of Halibut Point, suited up and hit the water. We checked the anchor, set due north, and began a bug hunt. It looked good from the start, as we wrestled a good sized keeper out of the rocks, but she kept her tail curled tightly closed, and alas was heavily berried. We kept on the same heading over large, flat, angular rocks, and as we approached a small dropoff were suprised to see several sharks ahead! Just spiny dogfish, but nonetheless the first sharks I've seen in New England waters.
I nearly crashed into another one later in the dive as I cleared a large rock, and managed to get a nice up close look at him... close enought to tell he was a him anyhow. We nearly bagged another keeper near the anchor line, but it managed to sidestep and bolt. All in all a very nice dive... good vis, max of about 38 fsw, and did I mention the sharks? :D

Dive two was off Rockport Breakwater, where the depths ranged from as little as 10 fsw to well over 60. It's a pretty typical breakwater... mostly a big pile of cut and blasted granite, which made for some pretty deep holes, narrow archways, and abundant marine life. We saw a big school of cod almost right away, and couldn't help but notice that most of the available real estate was occupied by urchins and anemonae. I think we may have even seen some hydroids, but my invertebrate identification slills are pretty sketchy.

This was my 75th dive, and I was pleased to notice early in the dive an old anchor lodged in the rocks, which we swam back and deposited near the anchor line. There was a good current, which we perhaps unwisely began the dive drifting with, but we turned early to account for the extra effort returning and made it back to the line with 1500 psi left in my tank. We decided to continue up current for a bit, but misjudged riding it back and overshot the boat by 100 yards or more. When we finally made it back to the line (at 15 fsw), I was close to running out of air, so we filled the lift bag off Mer's reg, and returned to the boat with a nice trophy, which I hope to deconcrete and preserve.

AnchorSm.JPG
 
Matt did a great job with the report - I just wish the problem with your car had been an oil issue -- much cheaper to fix!

Hey I can't identify sh*t, so I'll just stick to the stats. (I'm
a physicist -- I know nothing about life)

Seas 1-2 feet.

Dive 1 - Halibut Point
Max depth: 39', Ave depth: 29', BT: 39min
Surface temp: between 52 and 55deg, Thermocline: 26', Temp at depth: 46deg
Vis: 25', Current: slight Northerly, Tide: 2 hours after high

Dive 2 - Rockport Breakwater
Max depth: 21' Ave depth: 14', BT: 49min
Surface temp: 55deg Thermocline:16' Temp at depth: didn't get a reading, but probably near 46 deg since the two sites are within site of each other (about 1.5nm)
Vis: 15', better below the thermocline, Current: tidal, rather strong and swirly, Tide: 2 hours before low
The breakwater sits in 70' to 90' prevailing bottom depth, we dove the top, but could be a very interesting as a wall dive. Due to submerged rocks in places, I highly recommend a chart, fishfinder, and rock-watcher at this site. Also be prepared to unwedge the anchor, as the gaps between the slabs is just the right size to get one really stuck. The current was really weird and swirly (I swear we were swimming against the current on two adjacent legs), but could find some shelter in the "lee" of the breakwater. I suggest diving closer to slack if you don't want a workout and bring a good sized light to look into the holes that go down 30+ feet.

Other notes:
I crossed my 24 hours (and 15min) underwater with this dive. Got to use my liftbag for the first time to lift Matt's anchor find.

Great day, great dives.
 
Nice report. I went out on Saturday with Cape Ann Divers to the Poling and Boo Hoo Ledge. At Boo Hoo Ledge, I saw several dogfish also...

Sharks = Cool

We also got a bunch of scallops at Boo Hoo and found an amazing underwater canyon...so cool.
 
Sounds like a great day of diving, you guys! I almost went to Halibut on Saturday, but I'm too lazy for the hike, so we ended up at Lanes Cove instead. Only one lobster, though I was only hunting on dive 2. Saw a couple of keepers on the 1st dive that I didn't take, one of them with a very distinct crusher actually ended up in another diver's game bag at the end of the dive. Oh, and I finally bit the bullet and joined the ranks of drysuit divers. Woo-hoo!

-Roman.
 
I've been gradually deconcreting the anchor I found while keeping it in a freshwater bath. I was pleased today to see some raised letters visible on the surface of a patch of freshly exposed metal: "US PAT 26...".

Hopefully, when I get the rest of the number I'll be able to do a patent search and get a ballpark idea of the date it was lost!
 
Dude, that's a sweet find. I'm jealous, congrats. Anchors tend to be hard to date, but, please post what you find out about it.

Sharks = cool

Dogfish = a sign of a dying fishery, I hate them sooooo much.
 
To clarify, I was refering to the whole fishery, as obviously the guys catching dogs (and selling them to the Brititsh mostly) are doing well.

Dogfish numbers tend to go up (way up) when other adult species that compete with them for food become more scarce, i.e. cod. Furthering the problem is that when the dogs reach such huge numbers, because they have no competitors, they then make the problem worse because one their main prey items is juvinile cod.

Anytime you see one species have there numbers jump so high you have wonder what off balance.

Of course, now many fisherman are switching to hunting dogs, so maybe they will their numbers drop.

That said, I don't have anything personal against dog fish and they are cool to see underwater.

I don't think anyone (the fisherman or the biologists) really knows exactly the whole picture of what's going on out there.
 

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