Ambatovy eBooks - page 143

Environmental Assessment Volume E-3.9
Tailings Facility Oceanography
Ambatovy Project 115 January 2006
3.9.4.3 Summary Of Issues And Impacts
A summary of all the issues discussed above for the construction and operation
phases is presented in Tables 3.9-3 and 3.9.4.
Table 3.9-3 Construction Phase Impacts on the Marine Environment
Without Mitigation With Mitigation
Issue/Impact
Risk Temporal Spatial Cert. Magnitude Magnitude EnvironmentalConsequence
Issue 1: Specific Impacts On The Nearshore Environment
Impact 1:Increased
turbidity as a result of
construction
will occur short-term localized probable severe slight low
Impact 2: Increased
noise levels during
construction - biota
will occur short-term localized probable moderately
severe slight
low
Impact 3: Loss of
benthic invertebrates will occur medium-term localized possible moderately
severe slight low
Impact 4: Impact on fish likely short-term localized possible moderately
severe slight low
Issue 2: The Effect Of Pipeline Construction On Fishing Activities
Impact 1: Increased
noise levels during
construction - fisheries
will occur short-term localized probable moderately
severe slight
low
Impact 2: Reduced
access to traditional
fishing areas
will occur short-term localized probable slight slight
low
Impact 3: Increased risk
of fishing boat collisions
with construction
vessels
will occur short-term localized probable severe moderately
severe
low
Impact 4: Increased risk
of hydrocarbon spillage
on the gillnet fishery
may occur short-term localized possible moderately
severe slight
low
Impact 5: Loss of
benthic invertebrates will occur medium-term localized possible moderately
severe slight moderate