A quick look at some things happening at DunkWorks
WHOI's Seth Cones used Dunkworks to 3D print tag components and CNC machine the tag's flotation. Additionally, he used the Artec 3D scanner to create a squid model to simulate the tag's impact on water velocity and pressure around the animal.
"Squid are ecologically important marine invertebrates that play a key role in many aquatic ecosystems and fisheries. Quantifying squid swimming and behavioral patterns provides important insight into the ecology of these key taxa. However, due in part to the inherent challenges of monitoring squid in their natural marine environment, fine-scale behavioral observations of these pelagic, soft-bodied animals are rare. Bio-logging tags provide an emerging way to remotely study squid behavior in their natural environments.
Our lab, in collaboration with the University of Michigan and Monterey Bay Aquarium Research Institution, developed a novel, high-resolution bio-logging tag (ITAG) for soft-bodied invertebrates. We have begun tagging inshore long-fin squid (Doryteuthis pealeii) in both controlled lab and field settings to quantify short-term behavioral patterns. We examine tag accelerometer, magnetometer and dive data to develop automated gait classification algorithms based on overall dynamic body acceleration. This combination of sensing, classification, and estimation will enable the quantification of organismal activity patterns in the wild to provide new biological information, such as identification of behavioural states, temporal patterns, habitat requirements, energy expenditure, and community interactions." - Cones
Student Nathan McGuire is working in the lab of WHOI's Yogi Girdhar on a small vision-guided AUV for developing software to improve the autonomy of underwater vehicles. The primary sensors consist of three stereo camera pairs, and a Nvidia Jetson computer, which it uses for navigation, mapping and object characterization. Other sensors include a sidescan sonar, two echosounders and a USBL. The robot is completely custom designed, and most of the manufacturing was done in Dunkworks.
For more information about this project, click here.