Trishuli Assessment Tool - Field Manual
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Washington, DC
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The Trishuli Assessment Tool is a
standardized methodology for sampling freshwater aquatic
biodiversity in hydropower projects. This tool was developed
to: 1) strengthen the collection of aquatic biodiversity
data for environmental impact assessments (EIAs) and
international-level environmental and social impact
assessments (ESIAs); and 2) provide a simple yet
standardized method for the long-term monitoring of aquatic
biodiversity in relation to hydropower projects. The tool
was developed by a group of 30 international and Nepalese
aquatic scientists at a workshop in 2019 and tested during a
field survey in 2020. It provides a field sampling
methodology for three focal groups of aquatic biodiversity:
fish, macroinvertebrates, and periphyton as indicators of
overall aquatic biodiversity. This field manual provides
guidance for implementing the Trishuli assessment tool in
the rivers of Nepal and other Himalayan regions. The manual
is applicable to all types of hydropower projects (HPPs),
from small run-of-river to larger peaking projects because
all of them have some impact on the aquatic environment.
Palabras clave
AQUATIC ENVIRONMENT, ENVIRONMENTAL IMPACT OF HYDROPOWER, ACQUATIC BIODIVERSITY, SAFEGUARD POLICY STATEMENT, BIODIVERSITY ACTION PLAN