the firm slice consists of physico-chemical and biological sampling (diatoms and aquatic invertebrates) at 35 stations. That of fish on 25 stations. That of adne on 10 SMEs.

Option 1 concerns the sampling of 10 substances in the biota on the fish carrier at the 25 stations of the firm slice

the firm slice consists of physico-chemical and biological sampling (diatoms and aquatic invertebrates) at 35 stations. That of fish on 25 stations. That of adne on 10 SMEs.

Option 1 concerns the sampling of 10 substances in the biota on the fish carrier at the 25 stations of the firm slice