The Open-source Camera Trap for Organism Presence and Underwater Surveillance (OCTOPUS)
OCTOPUS is an open-source, motion-activated underwater camera system that can operate for about 72 hours at depths up to 800 feet. It has been used to document cryptic species, including Octopus rubescens, and their ecological interactions.
Octopus Behavior and movements
Motion-activated cameras tracked tagged Octopus rubescens in bottle dens, revealing daytime activity, frequent conspecific interactions, and differences in fish and crab visits between occupied and unoccupied dens.
This study uses DNA metabarcoding of octopus stomach contents to identify prey and compare diets across habitats, revealing how habitat, prey availability, and octopus traits influence foraging and trophic interactions.
This study examines how octopuses forage across different habitats by tracking prey choice, handling behavior, and habitat use to understand how environmental structure influences feeding strategies and predator–prey interactions.