Abstract:
The objective of this thesis is to show that by separating the two major
anthropogenic changes caused in riverine input to the north shore of the Black Sea,
it is possible to describe distinct linkages between ongoing ecological changes in the
Black Sea, and 1) flow reduction, and 2) nutrient load increase. An attempt is
made to quantify the pertinent changes in the inputs of water, salt, and nutrients
by modelling individual fluxes over time. The results of these computations are used
to argue how the ecology of the Black Sea may be realistically partially restored to
something like its former productivity.
The origins of input changes to this system are evaluated in terms of their
sources. The economic and social costs that will be involved in altering the quality
and quantity of those inputs to allow recovery of the Black Sea are examined along
with the benefits that may accrue through the restoration of water quality, fisheries
and tourism. Mechanisms that may be relevant in the process of achieving the
alteration of the inputs are discussed.
