Gschwend%20thesis.pdf

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Surprisingly, the Rhodophyta showed the least ability to re-
lease these halogenated compounds. These algae are well known for
the halogenation of terpenes and other metabolites (Fenical, 1975:
Crews, 1977). The studies of the red algae have typically in-
volved destruction of the plant structure and therefore may not per-
tain to the introduction of compounds into seawater. It is possible
that the physiological status of the red algae samples in these
studies was such that the release of halocompounds was low.
Study of more algal classes with nondestructive conditions is
necessary. Work to determine possible communication mechanisms us-
ing these chemicals in seawater may also be useful. Study of the
degradation of these natural products may lend insight into the
processes degrading more complex industrial halogenated materials
(Fenical, 1975).
SUMY
Evidence for the production and release of several hydrocar-
bons and halomethanes by benthic marine algae was obtained.
The observed rates of release to seawater were consistent
with the levels found in most CD seawater samples obtained in a
year-round study of the region.
Seasonal physiological changes of the algae may be the most
important factor controlling large inputs of volatile organic com-
pounds to seawater.