Ex-2025-03036503- -Neu-Samb#Mern - Direct Cont. N° 1337 - Acquisition Of Inputs And Field Articles For The Dir. Of Aquatic Ecosystems Of The Center For Applied Ecology Of Neuquén (Cean), Of The Secretariat Of Environment And Natural Resources Of Mern Ex-2025-03036503- -Neu-Samb#Mern - Direct Cont. N° 1337 - Acquisition Of Inputs And Field Articles For The Dir. Of Aquatic Ecosystems Of The Center For Applied Ecology Of Neuquén (Cean), Of The Secretariat Of Environment And Natural Resources Of Mern