download 21.6mb - Oil-Spill-Info.com

Uptake and depuration by organisms have been the subjects of many
laboratory experiments (e.g. Neff et al., 1976; Roesijadi et al., 1978)
but relatively few real spill scenarios (e.g. Boehm et al., 1982;
Grahl-Nielsen et al., 1978).
This report is intended to present an overview of the chemistry
program along with enough supporting data and interpretations for each
program element to make this a self contained document. After a
methods section, a summary of the general findings is presented.
Discussions of the analytical chemical and biogeochemical findings of
each of the six specific investigations follow; the last section draws
conclusions from the study as a whole. Much of the raw analytical data
has been omitted here for brevity. Tabulations of analytical data are
available either from the individual principal investigators or
from the chemistry group. This data has formed the basis of several
publications to date (Calder and Boehm, 1981, Boehm et al., 1981, Atlas
et al., 1981, Winfrey et al. 1981) as well as several manuscripts in
preparation. Additional interpretative details are found in these
manuscripts.
METHODS AND MATERIALS
As part of the NOAA/CNEXO research program to examine the longterm
fates and effects of the spill, we obtained samples of frozen
intertidal surface sediment, benthic sediment, sediment cores, oysters,
flatfish and macroalgae from a number of U.S. and French investigators
(Table 1) .
TABLE 1. Summary of AMOCO CADIZ chemistry program.
1 - Chemical Composition, Weathering, and Concentrations in
Surface Intertidal Sediments (Atlas; Calder): 1978-1981
2 - Chemical Composition, Weathering, and Concentrations in
Subtidal Sediment (Marchand, Courtot) : 1978-1979
3 - Chemical Composition, Weathering, and Concentrations in
v
Intertidal Cores (Ward): 1978-1980
4 - Chemical Concentrations and Composition of Oil in Oysters
and Flatfish from Abers (Neff) : 1978-1980
5 - Chemical Concentrations and Composition of Oil in Variety of
Fish and Oyster Tissues (Michel): 1978-1979
6 - Chemical Concentrations and Composition of Oil Associated
with Seaweeds (Topinka) : 1978-1980
37