Caribbean Time-series Study

There exist time-series observations at two locations in the Caribbean South of Puerto Rico at the Caribbean Time-series Study site (CaTS 17.6°N, 67°W), and north of Venezuela at the CARIACO site (Carbon Retention in a Colored Ocean Project 10.5°N, 64.67°W). At the former, the Caribbean Surface Water (upper 75 m) experiences a yearlong influence of continental river input, as evidenced by lowered... 

Kharkar DP, Thomson J, Turekian KK, Forster WO (1976) Uranium and thorium series nuclides in plankton from the Caribbean. Limnol Oceanogr 21 294-299 Krishnaswami S, Lai D, Somayajulu BLK, Weiss R, Craig H (1976) Large-volume in situ filtration of deep Pacific waters mineralogical and radioisotope studies. Earth Planet Sci Lett 32 420-429 Livingston HD, Cochran JK (1987) Determination of transuranic and thorium isotopes in ocean water in solution and in filterable particles. J Radioanal Nucl Chem 115 299-308 Masque P, Sanchez-Cabeza JA, Braach JM, Palacios E, Canals M (2002) Balance and residence times of °Pb and 4 o in surface waters of the northwestern Mediterranean Sea. Cont Shelf Res 22 2127-2146 Matsumoto E (1975) Th-234-U-238 radioactive disequilibrium in the surface layer of the oceans. Geochim Cosmochim Acta 39 205-212... 

Some time ago, we initiated a study of the coelenterate Briareum polvanthes to ascertain whether there was a chemotaxonomic basis for the species distinction between the Briareum found in Bermuda and the more common fl,. asbestinum found throughout the Caribbean. We have found a series of new diterpenes, 9-13, with the briaran skeleton (17.22.2T). It has been implied (24.2 5) that this class of compounds serves as a chemical defense against predation in the soft corals and sea pens which produce them, but this has not yet been demonstrated by bioassay. 

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