Skip USGS links group
USGS - science for a changing world

Woods Hole Science Center

End of USGS links group
WHSC Home Research Technology Publications Data People Basis Summaries Location Contact Us
Back to Marine Nuisance Species

Printable version in PDF format


Didemnum sp. - Woods Hole (Eel Pond), Massachusetts, Images



Skip links End of links group Skip image links End of links group
January 7, 2004
View of the floating dock in Eel Pond behind the Redfield Laboratory.
View of the floating dock in Eel Pond behind the Redfield Laboratory.
Image DB_EP_DSC0220. View of the floating dock in Eel Pond behind the Redfield Laboratory, WHOI, Main Street, Woods Hole, MA (41 deg 31.2 min N lat, 70 deg 40.0 W lon). Water depth of photographed species 0.5 m. Water temperature 2.2° C. January 7, 2004. Observers: Mary Carman (WHOI) and Page Valentine (USGS). Photo credit: Dann Blackwood (USGS). Location no. 14.
Click here to download image.
Image DB_EP_DSC0210, tunicate colonies of D. sp. and Botrylloides violaceus.
Image DB_EP_DSC0210
Image DB_EP_DSC0210. Tunicate colonies of Didemnum sp. (light yellow) and Botrylloides violaceus (dark red) encrusting the solitary tunicate Styela clava. Small round colony near the coin is Aplidium stellatum. Coin is 0.9 in (2.3 cm). Floating dock in Eel Pond behind the Redfield Laboratory, WHOI, Main Street, Woods Hole, MA (41 deg 31.2 min N lat, 70 deg 40.0 W lon). Water depth 0.5 m. Water temperature 2.2° C. January 7, 2004. Observers: Mary Carman (WHOI) and Page Valentine (USGS). Photo credit: Dann Blackwood (USGS). Location no. 14.
Click here to download image.
Image DB_EP_DSC0211, tunicate colonies of D. sp. and Botrylloides violaceus.
Image DB_EP_DSC0211
Image DB_EP_DSC0211. Tunicate colonies of Didemnum sp. (light yellow) and Botrylloides violaceus (dark red) encrusting the solitary tunicate Styela clava. Coin is 0.9 in (2.3 cm). Floating dock in Eel Pond behind the Redfield Laboratory, WHOI, Main Street, Woods Hole, MA. (41 deg 31.2 min N lat, 70 deg 40.0 W lon). Water depth 0.5 m. Water temperature 2.2° C. January 7, 2004. Observers: Mary Carman (WHOI) and Page Valentine (USGS). Photo credit: Dann Blackwood (USGS). Location no. 14.
Click here to download image.
Image DB_EP_DSC0213, tunicate colonies of D. sp. encrusting the solitary tunicate Styela clava.
Image DB_EP_DSC0213
Image DB_EP_DSC0213. Tunicate colonies of Didemnum sp. encrusting the solitary tunicate Styela clava. Coin is 0.9 in (2.3 cm). Floating dock in Eel Pond behind the Redfield Laboratory, WHOI, Main Street, Woods Hole, MA. (41 deg 31.2 min N lat, 70 deg 40.0 W lon). Water depth 0.5 m. Water temperature 2.2° C. January 7, 2004. Observers: Mary Carman (WHOI) and Page Valentine (USGS). Photo credit: Dann Blackwood (USGS). Location no. 14.
Click here to download image.
Image DB_EP_DSC0214, tunicate colony of D. sp. encrusting the solitary tunicate Styela clava.
Image DB_EP_DSC0214
Image DB_EP_DSC0214. Tunicate colony of Didemnum sp. encrusting the solitary tunicate Styela clava. Coin is 0.9 in (2.3 cm). Floating dock in Eel Pond behind the Redfield Laboratory, WHOI, Main Street, Woods Hole, MA. (41 deg 31.2 min N lat, 70 deg 40.0 W lon). Water depth 0.5 m. Water temperature 2.2° C. January 7, 2004. Observers: Mary Carman (WHOI) and Page Valentine (USGS). Photo credit: Dann Blackwood (USGS). Location no. 14.
Click here to download image.

Image DB_EP_DSC0215, tunicate colonies of D. sp. encrusting the solitary tunicate Styela clava.
Image DB_EP_DSC0215
Image DB_EP_DSC0215. Tunicate colonies of Didemnum sp. encrusting the solitary tunicate Styela clava. Coin is 0.9 in (2.3 cm). Floating dock in Eel Pond behind the Redfield Laboratory, WHOI, Main Street, Woods Hole, MA. (41 deg 31.2 min N lat, 70 deg 40.0 W lon). Water depth 0.5 m. Water temperature 2.2° C. January 7, 2004. Observers: Mary Carman (WHOI) and Page Valentine (USGS). Photo credit: Dann Blackwood (USGS). Location no. 14.
Click here to download image.
Image DB_EP_DSC0216, tunicate colony of D. sp. encrusting the solitary tunicate Styela clava.
Image DB_EP_DSC0216
Image DB_EP_DSC0216. Tunicate colony of Didemnum sp. encrusting the solitary tunicate Styela clava. Coin is 0.9 in (2.3 cm). Floating dock in Eel Pond behind the Redfield Laboratory, WHOI, Main Street, Woods Hole, MA. (41 deg 31.2 min N lat, 70 deg 40.0 W lon). Water depth 0.5 m. Water temperature 2.2° C. January 7, 2004. Observers: Mary Carman (WHOI) and Page Valentine (USGS). Photo credit: Dann Blackwood (USGS). Location no. 14.
Click here to download image.

Image DB_EP_DSC0217, tunicate colonies of D. sp. encrusting a chain on the floating dock.
Image DB_EP_DSC0217
Image DB_EP_DSC0217. Tunicate colonies of Didemnum sp. (medium to light gray) encrusting a chain on the floating dock. Tunicate colonies are dead and dried out. Floating dock in Eel Pond behind the Redfield Laboratory, WHOI, Main Street, Woods Hole, MA. (41 deg 31.2 min N lat, 70 deg 40.0 W lon). Water depth 0.5 m. Water temperature 2.2° C. January 7, 2004. Observers: Mary Carman (WHOI) and Page Valentine (USGS). Photo credit: Dann Blackwood (USGS). Location no. 14.
Click here to download image.
View of the floating dock in Eel Pond behind the Marine Resources Center.
Image DB_EP_DSC0241
Image DB_EP_DSC0241. View of the floating dock in Eel Pond behind the Marine Resources Center, MBL, Main Street, Woods Hole, MA (41 deg 31.2 min N lat, 70 deg 40.0 W lon). Green hull vessel is MBL's Gemma. Water depth of ropes with attached photographed species to 2 m. Water temperature 2.2° C. January 7, 2004. Observers: Mary Carman (WHOI) and Page Valentine (USGS). Photo credit: Dann Blackwood (USGS).Location no. 14.
Click here to download image.
Image DB_EP_DSC0236, Tunicate colonies of D. sp. encrusting the solitary tunicate Styela clava attached to a rope.
Image DB_EP_DSC0236
Image DB_EP_DSC0236. Tunicate colonies of Didemnum sp. (light yellow) encrusting the solitary tunicate Styela clava attached to a rope. Floating dock in Eel Pond behind the Marine Resources Center, MBL, Main Street, Woods Hole, MA (41 deg 31.2 min N lat, 70 deg 40.0 W lon). Water depth of ropes with attached photographed species to 2 m. Water temperature 2.2° C. January 7, 2004. Observers: Mary Carman (WHOI) and Page Valentine (USGS). Photo credit: Dann Blackwood (USGS). Location no. 14.
Click here to download image.
January 15, 2004
View of the end of the floating dock in Eel Pond behind the Marine Resources Center, MBL, Main Street, Woods Hole, MA.
View of the end of the floating dock in Eel Pond behind the Marine Resources Center.
Image DB_EP_DSC0250. View of the end of the floating dock in Eel Pond behind the Marine Resources Center, MBL, Main Street, Woods Hole, MA (41 deg 31.2 min N lat, 70 deg 40.0 W lon). Water depth of ropes with attached photographed species to 2 m. Water temperature -2 deg C. January 15, 2004. Observers: Mary Carman (WHOI) and Page Valentine (USGS). Photo credit: Dann Blackwood (USGS). Location no. 14. Location no. 14.
Click here to download image.
Image DB_EP_DSC0258, rope encrusted with tunicates, including D. sp.
Image DB_EP_DSC0258
Image DB_EP_DSC0258. Rope encrusted with tunicates, including Didemnum sp. Floating dock in Eel Pond behind the Marine Resources Center, MBL, Main Street, Woods Hole, MA (41 deg 31.2 min N lat, 70 deg 40.0 W lon). Water depth of ropes with attached photographed species to 2 m. Water temperature -2 deg C. January 15, 2004. Observers: Mary Carman (WHOI) and Page Valentine (USGS). Photo credit: Dann Blackwood (USGS). Location no. 14. Location no. 14.
Click here to download image.
Image DB_EP_DSC0253, tunicate colony of D. sp. encrusting the solitary tunicate Styela clava attached to a rope.
Image DB_EP_DSC0253
Image DB_EP_DSC0253. Tunicate colony of Didemnum sp. (light yellow) encrusting the solitary tunicate Styela clava attached to a rope. Coin is 0.9 in (2.3 cm). Floating dock in Eel Pond behind the Marine Resources Center, MBL, Main Street, Woods Hole, MA (41 deg 31.2 min N lat, 70 deg 40.0 W lon). Water depth of ropes with attached photographed species to 2 m. Water temperature -2 deg C. January 15, 2004. Observers: Mary Carman (WHOI) and Page Valentine (USGS). Photo credit: Dann Blackwood (USGS). Location no. 14. Location no. 14.
Click here to download image.
Image DB_EP_DSC0252, tunicate colony of D. sp.  encrusting the solitary tunicate Styela clava attached to a rope.
Image DB_EP_DSC0252
Image DB_EP_DSC0252. Tunicate colony of Didemnum sp. (light yellow) encrusting the solitary tunicate Styela clava attached to a rope. Dark spots on D. sp. are clusters of fecal pellets showing through the tunic. Coin is 0.9 in (2.3 cm). Floating dock in Eel Pond behind the Marine Resources Center, MBL, Main Street, Woods Hole, MA (41 deg 31.2 min N lat, 70 deg 40.0 W lon). Water depth of ropes with attached photographed species to 2 m. Water temperature -2 deg C. January 15, 2004. Observers: Mary Carman (WHOI) and Page Valentine (USGS). Photo credit: Dann Blackwood (USGS). Location no. 14. Location no. 14.
Click here to download image.
Image DB_EP_DSC0256, tunicate colony of D. sp. encrusting the solitary tunicate Styela clava attached to a rope.
Image DB_EP_DSC0256
Image DB_EP_DSC0256. Tunicate colony of Didemnum sp. (light yellow) encrusting the solitary tunicate Styela clava attached to a rope (close up of colony in Image DB_EP_DSC0252). Dark spots on D. sp. are clusters of fecal pellets showing through the tunic. Coin is 0.9 in (2.3 cm). Floating dock in Eel Pond behind the Marine Resources Center, MBL, Main Street, Woods Hole, MA (41 deg 31.2 min N lat, 70 deg 40.0 W lon). Water depth of ropes with attached photographed species to 2 m. Water temperature -2 deg C. January 15, 2004. Observers: Mary Carman (WHOI) and Page Valentine (USGS). Photo credit: Dann Blackwood (USGS). Location no. 14. Location no. 14.
Click here to download image.
Image DB_EP_DSC0255, tunicate colony of D. sp. encrusting the solitary tunicate Styela clava attached to a rope.
Image DB_EP_DSC0255
Image DB_EP_DSC0255. Tunicate colony of Didemnum sp. (light yellow) encrusting the solitary tunicate Styela clava attached to a rope. Dark spots on D. sp. are clusters of fecal pellets showing through the tunic. Coin is 0.9 in (2.3 cm). Floating dock in Eel Pond behind the Marine Resources Center, MBL, Main Street, Woods Hole, MA (41 deg 31.2 min N lat, 70 deg 40.0 W lon). Water depth of ropes with attached photographed species to 2 m. Water temperature -2 deg C. January 15, 2004. Observers: Mary Carman (WHOI) and Page Valentine (USGS). Photo credit: Dann Blackwood (USGS). Location no. 14.
Click here to download image.
View of the floating dock in Eel Pond behind the Redfield Laboratory.
View of the floating dock in Eel Pond behind the Redfield Laboratory.
Image DB_EP_DSC0259. View of the floating dock in Eel Pond behind the Redfield Laboratory, WHOI, Main Street, Woods Hole, MA (41 deg 31.2 min N lat, 70 deg 40.0 W lon). Water depth of photographed species 0.5 m. Water temperature -2 deg C. January 15, 2004. Observers: Mary Carman (WHOI) and Page Valentine (USGS). Photo credit: Dann Blackwood (USGS). Location no. 14.
Click here to download image.
Sampling through the sea ice from the floating dock in Eel Pond behind the Redfield Laboratory.
Sampling through the sea ice from the floating dock in Eel Pond behind the Redfield Laboratory.
Image DB_EP_DSC0261. Sampling through the sea ice from the floating dock in Eel Pond behind the Redfield Laboratory, WHOI, Main Street, Woods Hole, MA (41 deg 31.2 min N lat, 70 deg 40.0 W lon). Water depth of photographed species 0.5 m. Water temperature -2 deg C. January 15, 2004. Observers: Mary Carman (WHOI) and Page Valentine (USGS). Photo credit: Dann Blackwood (USGS). Location no. 14.
Click here to download image.
Image DB_EP_DSC0268, tunicate colony of D. sp. encrusting and hanging from the solitary tunicate Styela clava.
Image DB_EP_DSC0268
Image DB_EP_DSC0268. Tunicate colony of Didemnum sp. encrusting and hanging from the solitary tunicate Styela clava. Dark spots on D. sp. are clusters of fecal pellets showing through the tunic. Gray area is part of the colony and possibly represents dead tissue. Coin is 0.9 in (2.3 cm). Floating dock in Eel Pond behind the Marine Resources Center, MBL, Main Street, Woods Hole, MA (41 deg 31.2 min N lat, 70 deg 40.0 W lon). Water depth of photographed species 0.5 m. Water temperature -2 deg C. January 15, 2004. Observers: Mary Carman (WHOI) and Page Valentine (USGS). Photo credit: Dann Blackwood (USGS). Location no. 14.
Click here to download image.
Image DB_EP_DSC0269, tunicate colony of D. sp. encrusting and hanging from the solitary tunicate Styela clava.
Image DB_EP_DSC0269
Image DB_EP_DSC0269. Tunicate colony of Didemnum sp. (reverse of specimen in Image DB_EP_DSC0268) encrusting and hanging from the solitary tunicate Styela clava. Dark spots on D. sp. are clusters of fecal pellets showing through the tunic. Coin is 0.9 in (2.3 cm). Floating dock in Eel Pond behind the Marine Resources Center, MBL, Main Street, Woods Hole, MA (41 deg 31.2 min N lat, 70 deg 40.0 W lon). Water depth of photographed species 0.5 m. Water temperature -2 deg C. January 15, 2004. Observers: Mary Carman (WHOI) and Page Valentine (USGS). Photo credit: Dann Blackwood (USGS). Location no. 14.
Click here to download image.
Image DB_EP_DSC0271, tunicate colonies of D. sp. encrusting the solitary tunicate Styela clava.
Image DB_EP_DSC0271
Image DB_EP_DSC0271. Tunicate colonies of Didemnum sp. encrusting the solitary tunicate Styela clava. Dark spots on D. sp. are clusters of fecal pellets showing through the tunic. Coin is 0.9 in (2.3 cm). Floating dock in Eel Pond behind the Marine Resources Center, MBL, Main Street, Woods Hole, MA (41 deg 31.2 min N lat, 70 deg 40.0 W lon). Water depth of photographed species 0.5 m. Water temperature -2 deg C. January 15, 2004. Observers: Mary Carman (WHOI) and Page Valentine (USGS). Photo credit: Dann Blackwood (USGS). Location no. 14.
Click here to download image.
Image DB_EP_DSC0273, tunicate colony of D. sp.
Image DB_EP_DSC0273
Image DB_EP_DSC0273. Tunicate colony of Didemnum sp. (close up of a colony in Image DB_EP_DSC0271). Dark spots on D. sp. are clusters of fecal pellets showing through the tunic. Coin is 0.9 in (2.3 cm). Floating dock in Eel Pond behind the Marine Resources Center, MBL, Main Street, Woods Hole, MA (41 deg 31.2 min N lat, 70 deg 40.0 W lon). Water depth of photographed species 0.5 m. Water temperature -2 deg C. January 15, 2004. Observers: Mary Carman (WHOI) and Page Valentine (USGS). Photo credit: Dann Blackwood (USGS). Location no. 14.
Click here to download image.

Back to Top

Adobe Acrobat Reader To view files in PDF format, download free copy of Adobe Reader.


Skip links End of links group Skip image links End of links group
Skip USGS links group

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USAGov logo U.S. Department of the Interior | U.S. Geological Survey
End of USGS links group
URL: woodshole.er.usgs.gov/project-pages/stellwagen/didemnum/htm/page3c.htm
Page Contact Information: WHSC Webmaster
Page Last Modified: Tuesday, 11-Mar-2008 10:14:42 EDT