Tech FilePhotos: NortekReliable and constant measurements of environmental currents and other oceanographic environmental condi-tions can markedly improve the per-formance of ? sh farms in Chile. The Aquadopp Pro? ler is a highly versatile Acoustic Doppler Current Pro? ler used by the ? sh farming industry to optimize production and operations. Nortek’s Real? sh system (also known as AOS) gives the ? sh farming indus-try online access to monitoring of currents, oxygen, salinity and tem-perature. September 201748 MTRMTR #7 (34-49).indd 48 MTR #7 (34-49).indd 48 8/23/2017 4:24:22 PM8/23/2017 4:24:22 PM