Status - Reason - Response: Role of Data in Watershed Management Erik L. Silldorff, Ph.D. © David B. Soete
Knowledge Base by Eric Silldorff, Aquatic Biologist, Delaware River Basin Commission
Jun 25, 2015
Knowledge Base by Eric Silldorff, Aquatic Biologist, Delaware River Basin Commission
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Status - Reason - Response: Role of Data in Watershed Management
Erik L. Silldorff, Ph.D.
© David B. Soete
© David B. Soete
Status - Reason - Response
Status
• what is the current condition of a site or a waterbody?
• central focus for many monitoring efforts
• critical data on status, types of resources, and sensitivities
Status - Reason - Response
Status• what is the current
condition of a site or a waterbody?
NJDEP 2012
Status - Reason - Response
Reason
• why is the site in a given condition?
• typically asked during “Status” check but without appropriate
study design or data• very difficult (!!!!) because of complexity
→ complex ecological systems→ complex & confounding human stressors
• may only be pursued in high-profile or crisis settings
• role for modeling
Status - Reason - Response
Reason• why is the condition
poorer than natural?
California Streams (USEPA 2013)Shad Landings – Lambertville(Delaware R Fish Coop 2011)
Status - Reason - Response
Response
• dam removal
• streambank restoration
• stormwater control
• species re-introduction
• pollution abatement
• reforestation
• riparian restoration
• nutrient control
• invasive eradication
• AMD remediation
Status - Reason - Response
Response
• many stressors likely acting in concert within complex
ecological system
• weak evidence on the “Reason” leads to waste of resources
• prevention or restoration?
• slower pace of restoration since 1970 related to challenges
Role of Data in Watershed Management
a wise person once said...
You don’t need data to make decisions.
You need data to make good decisions.
Thank You!
photo © Michael Hogan Photography
Data Collection: Complementary Roles
Government (Federal / State / County)• adept at measuring current status
Academic Researchers• greater emphasis on the reasons why
Non-Profit Groups• insights at the local scale & flexibility
Regulated Entities• may need to demonstrate localized effects (or lack thereof)
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