SLIDE 9 1D modeling of fish habitat
A simple method for assessing minimum flows in regulated rivers: the case of sea lamprey reproduction.
- J. M. OLIVEIRA, M. T. FERREIRA, A. N. PINHEIRO and J.
H.BOCHECHAS. AQUATIC CONSERVATION: MARINE AND FRESHWATER ECOSYSTEMS14: 481–489
7
4 km
6 5 4 3 2 1
RIVER ZÊZERE
(main tributary of
river Tagus)
RIO DE MOINHOS ORTEGA I and II ALVEGA
Spawning areas (1 to 7) Gravel extraction
2
A A A A
20 40 60 80 100 10 20 30 40 50 100 90 80 70 60 50 40 30 20 10 50 40 30 20 10 100 80 60 40 20 50 40 30 20 10 100 80 60 40 20 50 40 30 20 10
ORTIGA 2
Reference wetted-area: 19500 m
ORTIGA 1
Reference wetted-area: 52450 m
ALVEGA
Reference wetted-area: 68600 m
RIO MOINHOS
Reference wetted-area: 187700 m
Y=-0.006X +0.908X+38.343 r =0.998 Y=-0.003X +0.118X+34.749 r =0.996 Y=-0.017X +1.635X+53.106 r =0.990 Y=-0.005X +1.043X+44.160 r =0.998
Discharge (m
Wetted area (%)
3 -1