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Dive Report: The Sea Divers trip to Oil Rigs Eureka and Elly


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Posted by Chris on June 26, 2012 at 18:45:13:

Last Saturday June 23, 2012 the Sea Divers went to the oil rigs aboard the Sea Bass.

We left the dock just after 7AM and began the first dive on Eureka about 8AM.   The visibility above 110 feet was a chunky 30 feet, and the water was a comfortable 58°F.   There was an abrupt thermocline at 110 feet and below the a much cleaner 60+ feet along with a much chiller temperature of about 50°F.

The water was full of salps and jellies.

Salpa maxima
Salpa maxima


Mitrocoma cellularia (Cross Jellyfish) & Salpa maxima
Mitrocoma cellularia (Cross Jellyfish) & Salpa maxima


Salpa maxima
Salpa maxima


Cyclosalpa bakeri
Cyclosalpa bakeri


Cyclosalpa bakeri
Cyclosalpa bakeri

There were plenty of fish and colorful invertebrates as one expects on a rig dive.


Semicossyphus pulcher (California Sheephead)
Semicossyphus pulcher (California Sheephead)


Hypsypops rubicundus (Garabaldi)
Hypsypops rubicundus (Garabaldi)


Scorpaenichthys marmoratus (Cabezon)
Scorpaenichthys marmoratus (Cabezon)


Metridium senile & Ophiothrix spiculata (Brittle Stars)
Metridium senile & Ophiothrix spiculata (Brittle Stars)


Metridium farcimen
Metridium farcimen


Corynactis californica
Corynactis californica

We stayed at Eureka for Dive 2 and conditions remained unchanged, so for dive 3 we moved to Ellen.   At Ellen the water was 59°F, but the visibility was a much greener 10 feet.   It cleared a bit as one got deeper, but not much.

At Ellen I came across a dark varity of Metridium senile anemones I had not seen before.


Metridium senile fimbriatum
Metridium senile fimbriatum


Metridium senile fimbriatum
Metridium senile fimbriatum


Metridium senile fimbriatum & Mytilus californianus (California Mussel)
Metridium senile fimbriatum & Mytilus californianus (California Mussel)


Near the end of the dive I found a fair sized Cancer antennarius (Pacific Rock Crab) for a photo subject.   I took a series of pictures until my focus light on him caught the attention of a large male sheephead (Semicossyphus pulcher) who snatched him up an ate him.   The last I saw of him was his legs hanging out of the sheephead's mouth.

Cancer antennarius (Pacific Rock Crab)
Cancer antennarius (Pacific Rock Crab)

Captain Richard gave us some great dives and it was another great Sea Divers trip.

click here to see all of the pictures from the trip

©2012 Chris Grossman, diver.net




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