Didemnum vexillum - Narragansett, Rhode Island, Images
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| December 1, 2002 |
Image CD_GSO_RI001 |
Image CD_GSO_RI001. Tunicate colonies of Didemnum vexillum (light yellow) encrusting rocks at the dock of the Graduate School of Oceanography, University of Rhode Island, on Narragansett Bay, Narragansett, RI (41 deg 29.3 min N lat, 71 deg 25.5 min W lon). Invasive red alga Grateloupia turuturu also present. Water depth, intertidal. December 1, 2002. Observer Chris Deacutis. Photo credit: Chris Deacutis (RIDEM). Location no. 21.
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Image CD_GSO_RI002 |
Image CD_GSO_RI002. Tunicate colonies of Didemnum vexillum (light yellow) encrusting pilings, rocks, and mussels below the dock of the Graduate School of Oceanography, University of Rhode Island, on Narragansett Bay, Narragansett, RI (41 deg 29.3 min N lat, 71 deg 25.5 min W lon). Water depth, intertidal. December 1, 2002. Observer Chris Deacutis. Photo credit: Chris Deacutis (RIDEM). Location no. 21.
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| March 5, 2003 |
Image CD_GSO_RI003 |
Image CD_GSO_RI003. View from approximately the same location shown in Image CD_GSO_RI002. Tunicate colonies of Didemnum vexillum and mussels have been removed from the pilings and rocks by the shearing action of ice floes between December 2002 and March 2003. D. sp. apparently still exists below mean lower low water. Dock of the Graduate School of Oceanography, University of Rhode Island, on Narragansett Bay, Narragansett, RI (41 deg 29.3 min N lat, 71 deg 25.5 min W lon). Water depth, intertidal. March 5, 2003. Observer Chris Deacutis. Photo credit: Chris Deacutis (RIDEM). Location no. 21.
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U.S. Department of the Interior |
U.S. Geological Survey