Ontology highlight
ABSTRACT:
SUBMITTER: Baran R
PROVIDER: S-EPMC5500586 | biostudies-literature | 2017 Jul
REPOSITORIES: biostudies-literature
Baran Roman R Jůza Tomáš T Tušer Michal M Balk Helge H Blabolil Petr P Čech Martin M Draštík Vladislav V Frouzová Jaroslava J Jayasinghe Asanka D AD Koliada Ievgen I Mrkvička Tomáš T Muška Milan M Ricard Daniel D Sajdlová Zuzana Z Vejřík Lukáš L Kubečka Jan J
Scientific reports 20170706 1
For ethical reasons and animal welfare, it is becoming increasingly more important to carry out ecological surveys with a non-invasive approach. Information about fish distribution and abundance in the upper water column is often fundamental. However, this information is extremely hard to obtain using classical hydroacoustic methods. We developed a rigid frame system for pushing upward looking transducers of the scientific echo sounder (38 and 120 kHz) in front of the research vessel. The effici ...[more]