Method of RAPD

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Lotic Community Prediction Model Responding
Environmental Change (LOCOPEM)
Tae Ho Ro and Dong Jun Chun Korea Environment
Institute
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Why the water ?
? The most critical factor for the survival of
life Our future will be deeply compromised
unless we learn to manage water as a critical
ingredient of our lives. (Myers, 1993) ? The
decline in the distribution, abundance, and
quality of water and aquatic ecosystem represents
a threat to the sustainability of all living
systems and the quality and long-term viability
of human society.
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Changing perspective on water quality

• Past
• ? Pollution was caused by chemicals
• e.g., sediment was not a pollutant.
• ? Interested in the wastewater treatment,
  drinking water, human-centered policy.
• ? Not interested in the effects of action.
• ? Society ignored biology.

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Changing perspective on water quality
Changing ? The survival of human society
depends on the nature, and it tided with the
harmony of nature. ? Biology of water represents
the health of a water body. ? Ecological quality
of water included hydrological, chemical,
physical, and biological integrity. ? To view
water quality standard as a holistic, affirmative
statement of the overall integrity of a water
body.
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The holistic (integrative) view of a water body
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What is the health of water body ?

• ? Healthy water bodies exhibit ecological
  integrity.
• Ecological integrity a combination of components
  of aquatic integrity
• ? The true health of aquatic environment is
  reflected by the biological communities that
  reside within them.

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Similar and Preceded Researches

• ? Predicting Models
• - RIVPACS River InVertebrate Prediction And
  Classification System (Metcalfe and Smith, 1996)
• - AUSRIVAS Australia
• - BORIS Oregon State, USA
• ? Region or Country specific
• ? Korea
• - GPI (Group Pollution Index, Yoon et al.,
  1992)
• - KBI (Korean Biotic Index, Yoon et al.,
  1992)
• ? Simple math. approach using community
  analysis
• ? No predicting function
• ? Model for water quality based on chemicals
• - WASP5, QUAL2-E

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Development of LOCOPEM (Lotic Community
Prediction Model Responding Environmental Change)
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River Continuum Concept
after Vannote et al. 1980
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Conventional Approach discrete
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New Paradigm Continuous
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General Tendency
Relationship among Altitude, Water width and
River width
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Relationship among physico-chemical factors
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Continued..
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Continued..
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Canonical Correspondence Analysis I Sites,
EFs Sp.
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Canonical Correspondence Analysis II Sites,
EFs Fam.
Important Factors ? Altitude. Water width,
Velocity,
BOD, SS, TN, Conductivity, Cl
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Response Surface Model (RSM) ? 3
Dimensional model fitting
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ALGORYTHM OF THE LOCOPEM
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LOCOPEM Program (ver. 1.01) (Lotic Community
Prediction Model Responding Environmental Change)
Program Loading
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Input layer (Initiation Stage)
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Activated Input Layer (4 types of data)
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Output Layer (Ecosystem Diagnosis) 1.
Biodiversity
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Output Layer (Ecosystem Diagnosis) 2. Stability
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Output Layer (Ecosystem Diagnosis) 3. Stream
Urbanization
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Summary of Simulation Result and Reporting
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Korea Biotic Index (Rapid Bioassessment)
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Verification (Obs. vs Simul.)
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Probability Threshold in Stability Analysis
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0.9
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Summary

• Application of River Continuum Concept
• Standardization for the ecological traits of
  streams
• ? Limited to low trophic levels
• Development of decision-making tool
• Objective assessment possible
• ? limited sampling numbers
• Generalized application to stream sections from
  head to mouth
• Simulation for undisturbed stream model
• ? Artificial impacts embedded in studied
  streams

Need to Develop a Regional Base Model
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Thank you..!
photo taken by C.H. Byun
http//www.interbugsphoto.com