COASTAL OCEAN WATER RESOURCES: LINKS WITH TERRESTRIAL FRESHWATER
RESOURCES, ANTHROPOGENIC INFLUENCES AND CLIMATE CHANGE.
Lt(jg) Jon Klay
To provide an understanding on how anthropogenic activities
on the world's continents can impact coastal-ocean water quality,
fisheries landings and coastal recreational resources and the role
climate change potentially can play in all of the above.
Global and regional increases in population have placed
growing stresses upon the earth's natural resources, including water.
Water resources traditionally include terrestrial-associated rivers,
lakes and subterranean aquifers. In a less traditional thought
significant manner the coastal ocean also serves mankind as a water
resource for both recreation and commercial fisheries.
Results from both ongoing investigations and global data bases
on fisheries harvests, coastal-ocean pollution and increasing continental
usage of such anthropogenically important commodities as commercial
fertilizer (figure) along with increases in
river nutrient fluxes were unified and compared for a global overview.
It was shown that, to date, widespread failure to
connect upstream with coastal pollution results from watersheds typically
being fragmented into several political jurisdictions. This is
compounded by scientific study with a propensity toward mono- as opposed
to multi-disciplinary investigations, the latter tending to promote a
broader, more system-oriented approach. Scientifically, we need to
understand and approach environmental studies on the regional and
system-level and consider, in a unified manner, the effects from the
watershed to the coastal ocean. Moreover, changing patterns of rainfall
may alter inter-basin precipitation and change freshwater and
nutrient/pollutant inflow to segments of the coastal zone with attendant shifts
in coastal primary production and fisheries habitat.
THIS PROJECT WAS RECENTLY COMPLETED
Nelsen, T., (1996), Coastal Ocean Water Resources: Linkages with Terrestrial
Freshwater Resources, Anthropogenic Influences and Climatic Change,
NATO ASI Series,
Diachronic Climatic Impacts on Water Resources, (Eds. A. Angelakis and A. Issar),
Chapter 14, pp. 319-347, Springer-Verlag, Berlin Heidelberg.
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