\“Health Examination” – A Semi-enclosed
Coastal Environment: A New Concept For
Marine Environmental Monitoring
Author(s)
M. Okawa, T. Takahashi, T. Kazama & K. Nakata
Abstract
The problem in water quality has become obvious in the coastal waters of Japan
since about 1970. Some areas developed an unpleasant odour and a lot of fish
died in many areas where industrial activity was flourishing. The monitoring of
these areas started together with missions designed to deal with this water
pollution. As a result, the water quality recovered to a constant or decreased level
but fishery resources have not recovered to a level to support the Japanese
demand for consumption. Was there a problem in the ideal way of restriction and
monitor that focused on the water quality? We propose a \“Health Examination of
the sea” as a new oceanic environmental diagnosis to monitor and evaluate water
quality. This diagnosis focuses on biological production and the purification
ability of the sea. The \“Health Examination of the sea” method covers ecosystem
stability and smoothness of material cycling. This method was devised to
understand at an early stage trends in environmental deterioration by using a
standard which focuses on the range of variation in the environment parameter of
each area, and not a standard that uses an absolute value. In effect, this new
evaluation method incorporates the concept of preventive medicine. Our
objective is to clarify the points of difference between the established monitoring
method to redress water pollution, and to introduce a new approach to marine
environment protection.
Keywords: Health Examination, monitoring, ecosystem, materials cycle,
enclosed bay.
Keywords
Health Examination, monitoring, ecosystem, materials cycle,
enclosed bay.
Related Book
Other papers in this volume
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