Invasive Tunicates Galleries

Recreational Diver sightings of Invasive Tunicates : Ciona savignyi and Didemnum sp found in Hood Canal and Puget Sound. A few shots from Canada (BC) as well. Please pay particular attention to the photo credits of each photo, as many people have contributed to this gallery.

Recreational Diver sightings of Invasive Tunicates

Ciona savignyi and Didemnum sp found in Hood Canal and Puget Sound. A ...

Updated: Sep 28, 2007 9:42am PST

REEF Hood Canal Ciona hunting expedition : A check at some sites where Ciona had previously been found in mass quantities yielded...NONE! And areas where none had existed before, now had mega-quantities...

REEF Hood Canal Ciona hunting expedition

A check at some sites where Ciona had previously been found in mass qu ...

Updated: Aug 10, 2007 8:50pm PST

Invasive Tunicate Training Workshops : Some photos of the Invasive Tunicate training workshops I conducted throughout March - Jun 2007. (there are others I taught but forgot to take photos!)

Invasive Tunicate Training Workshops

Some photos of the Invasive Tunicate training workshops I conducted th ...

Updated: Jul 17, 2007 10:37pm PST

Shilshole Didemnum Patches : Two Didemnum patches were found by Rhoda Green near the boat launch north of Shilshole Bay marina in Seattle on the North side of this wall in Sept 2006. The patches are found about 120ft from the start of the pier on the shore. They are in 11 ft Mean Lower Low tide. The rest of the wall as well as the entire south side of this wall had no other Didemnum patches. In March 2007, the patches appear not to have grown much, if at all, in 6 months time. Most of the following photos are by Janna Nichols.

Shilshole Didemnum Patches

Two Didemnum patches were found by Rhoda Green near the boat launch no ...

Updated: Apr 07, 2007 10:30pm PST

Styela clava - Pleasant Harbor, Hood Canal, WA : Pleasant Harbor on Hood Canal, near Brinnon, WA is unfortunately home to thousands of invasive tunicates - Styela clava has taken over the underside of docks, and is fouling propellers and hulls of the boats in the marina.

Styela clava - Pleasant Harbor, Hood Canal, WA

Pleasant Harbor on Hood Canal, near Brinnon, WA is unfortunately home ...

Updated: Mar 22, 2007 10:58pm PST

Ciona savignyi, Des Moines Marina :

Ciona savignyi, Des Moines Marina

Updated: Mar 16, 2007 12:22am PST

Sund Rock - Kelp Krawlers and Pacific Dive Club remove Ciona savignyi : Two dive clubs combine efforts in January 2007 to clean up Sund Rock of an invasive tunicate.

Sund Rock - Kelp Krawlers and Pacific Dive Club remove Ciona savignyi

Two dive clubs combine efforts in January 2007 to clean up Sund Rock o ...

Updated: Jan 27, 2007 11:01pm PST

Maury Island Tunicate hunting trip : January 23rd, 2007 - Exploration of Maury Island Barges area (near the gravel operation) for a reported sighting of Ciona savignyi. It had been reported that in summer of 2006 that a boat sunken there at about 60 feet had Ciona covering the transom. When we went to find it, we found the boat easily, but there were no Ciona whatsoever on the transom, but we did find ONE individual on the side of the boat, tucked back under towards the keel (in a dark area).

Maury Island Tunicate hunting trip

January 23rd, 2007 - Exploration of Maury Island Barges area (near the ...

Updated: Jan 24, 2007 1:02pm PST

Ciona savignyi removal project at Sund Rock North Wall : Permission was obtained from WDFW to remove the invasive tunicate that's been overtaking Sund Rock this past year. Photos not credited are by Janna Nichols. The rest are noted and taken by JD Rowe. Volunteers were members of Washington Scuba Alliance and Pacific NW marine life surveyors for REEF (Reef Environmental Education Foundation).

Ciona savignyi removal project at Sund Rock North Wall

Permission was obtained from WDFW to remove the invasive tunicate that ...

Updated: Oct 31, 2006 10:51am PST

Ciona savignyi - Union area of Hood Canal : Georgia Arrow and I dove an area east of Union on South Hood Canal on 4/25/06 that was covered with Ciona savignyi from about 40 feet down to 80 feet. We didn't go deeper, but we could see the tunicates continued on down somewhat from there, although less in abundance than at the 50-70 foot level. Our GPS coordinates were: N47 21.021 W123 03.321

Ciona savignyi - Union area of Hood Canal

Georgia Arrow and I dove an area east of Union on South Hood Canal on ...

Updated: Apr 27, 2006 11:10pm PST