Observations of Lophelia pertusa and the surficial geology at a deep-water site in the northeastern Gulf of Mexico
- 130 Downloads
Authigenic carbonate, precipitated in conjunction with biogeochemical activity associated with hydrocarbon and related fluid seepage, provides exposed and buried hard substrate on the crest and flanks of a low-relief mound located on the upper De Soto Slope in the northeastern Gulf of Mexico. Lophelia pertusa has successfully colonized some of this carbonate material. Individual colonies range in size from a few centimeters to over 1.5 m in diameter while aggregations of closely associated colonies with linear orientations were observed to attain 1.5–2 m in height and width and 3–4 m in length. Many of the aggregated colonies appear to be in the first phase of the `thicket' building stage described by Squires (1964). Colonies less than 50–75 cm in diameter were nearly always completely pure white. Larger colonies and the aggregated colonies are often light to dark brown in coloration at their base and center with many having only white terminal branches and some with no white corallum at all.
Unable to display preview. Download preview PDF.
- Cairns, S. D., 1979. The Deep-Water Scleractinia of the Caribbean Sea and Adjacent Waters, Studies on the Fauna of Curaçao and Other Caribbean Islands 57 (180), 341 pp.Google Scholar
- Dons, C., 1944. Norges korallrev [The coral reefs of Norway.]: K. Norske Vidensk. Selskab. Forhandl. [Trondhjem] 16A: 37–82.Google Scholar
- Ekman, S., 1953. Zoogeography of the Sea. Sidgewick and Jackson, Ltd. Pp. xiv–417.Google Scholar
- Hovland, M., R. B. Mortensen, T. Brattegard, P. Strass & K. Rokoengen, 1998. Ahermatypic coral banks off mid-Norway: Evidence of a link with seepage of light hydrocarbons. Palaios 13: 189–200.Google Scholar
- Joubin, L., 1912. 1. Carte des bancs et réifs de coraux: Inst. Océanogr. Monaco Ann. Vol. 4, 7 pp.Google Scholar
- MacDonald, I. R., 1992. Chemosynthetic Ecosystem Study Literature Review and Data Synthesis, Volume II: Technical Report. U.S. Department of Interior, Minerals Management Service, Gulf of Mexico OCS Region, New Orleans, LA. OCS 92-0034. 238 pp.Google Scholar
- MacDonald, I. R., G. S. Boland, J. S. Baker, J. M. Brooks, M. C. Kennicutt II & R. R. Bidigare, 1989. Gulf of Mexico hydrocarbon seep communities. II. Spatial distribution of seep organisms and hydrocarbons at Bush Hill. Mar. Biol. 101: 235–247.Google Scholar
- Moore, D. R. & H. R. Bullis Jr., 1960. A deep-water coral reef in the Gulf of Mexico. Bull. Mar. Sci. 10: 125–128.Google Scholar
- Newton, C. R., H. T. Mullins & A. F. Gardulski., 1987. Coral mounds on the West Florida Slope: Unanswered questions regarding the development of deep-water banks. Palaios 2: 359–367.Google Scholar
- Pratje, O., 1924. Korallenbänke in tiefem and kuhlem Wasser. Central bl. Min. Geol., Paläont., 410–415.Google Scholar
- Squires, D. F., 1964. Fossil coral thickets in Wairarapa, New Zealand. J. Paleontol. 38: 905–915.Google Scholar