© David B. Soete

Status - Reason - Response:
Role of Data in Watershed Management
Erik L. Silldorff, Ph.D.
© David B. Soete
Status - Reason - Response

Status
•

what is the current condition of a site or a waterbody?

•

central focus for many m...
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 ...
Status - Reason - Response
Reason
•

why is the condition
poorer than natural?

Shad Landings – Lambertville
(Delaware R F...
Status - Reason - Response

Response
•

dam removal

•

reforestation

•

streambank restoration

•

riparian restoration
...
Status - Reason - Response

Response
•

many stressors likely acting in concert within complex
ecological system

•

weak ...
Role of Data in Watershed Management

a wise person once said...

You don’t need data to make decisions.
You need data to ...
Thank You!

photo © Michael Hogan Photography
Data Collection: Complementary Roles
Government (Federal / State / County)
•

adept at measuring current status

Academic ...
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Knowledge Base by Eric Silldorff, Aquatic Biologist, Delaware River Basin Commission

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Knowledge Base by Eric Silldorff, Aquatic Biologist, Delaware River Basin Commission

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Knowledge Base by Eric Silldorff, Aquatic Biologist, Delaware River Basin Commission

  1. 1. © David B. Soete Status - Reason - Response: Role of Data in Watershed Management Erik L. Silldorff, Ph.D.
  2. 2. © David B. Soete
  3. 3. 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
  4. 4. Status - Reason - Response Status • what is the current condition of a site or a waterbody? NJDEP 2012
  5. 5. 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
  6. 6. Status - Reason - Response Reason • why is the condition poorer than natural? Shad Landings – Lambertville (Delaware R Fish Coop 2011) California Streams (USEPA 2013)
  7. 7. Status - Reason - Response Response • dam removal • reforestation • streambank restoration • riparian restoration • stormwater control • nutrient control • species re-introduction • invasive eradication • pollution abatement • AMD remediation
  8. 8. 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
  9. 9. 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.
  10. 10. Thank You! photo © Michael Hogan Photography
  11. 11. 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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