Spain region's fish will be sacrificed for water quality
STORY: Tons of fish are being sacrificed in Catalonia
in an 'exceptional' anti-drought measure
Location: Vilanova de Sau, Spain
Fishing boats were out in force
this week to catch the fish
The move aims to preserve water quality
in the drying Susqueda reservoir
A massive die-off of fish in the low-oxygen water
could contaminate drinking water, local authorities say
Invasive species will be euthanized,
while native ones will be released in nearby waters
