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UNT engineering dean is part of a team studying how squid swim together, with underwater robots in mind

Paul Krueger, who leads UNT's College of Engineering, is working with researchers from three other schools to learn whether squid save energy by swimming in formation.

Zane Boyd

October 6, 20262 min read

Squid swimming in formation - illustration, Jake Team LLC

Squid are one of the few animals that move by jet propulsion, and a University of North Texas engineer wants to know what happens when a lot of them do it at once.

Paul Krueger, dean of UNT's College of Engineering and a professor of mechanical engineering, is part of a research team looking at how squid arrange themselves and coordinate when they travel in groups, the university announced Monday.

The findings could help engineers design fleets of autonomous underwater vehicles that work together more efficiently, for jobs such as ocean exploration and harbor security, Krueger said in the release.

Two decades of squid research

The group, led by Old Dominion University, also includes an engineer from Southern Methodist University and biologists from Old Dominion and Franklin & Marshall College. According to UNT, the team has studied how squid move for nearly 20 years, first asking whether they are efficient swimmers and how that changes as they grow.

Fish schooling has been studied extensively, the university noted, but much less is known about squid. The animals push water out to move, steer with flexible fins and carry small hairs along their bodies that pick up changes in the water flowing around them.

Krueger compared the question to highway driving: a car handles differently behind a large truck than on an empty road. The researchers want to learn whether a squid trailing others swims differently, whether certain formations save or cost energy, and whether squid can read what their neighbors are doing from shifts in the water.

Lab tanks and the East Coast

The work will take place both in labs and in the animals' habitats along the East Coast. In the lab, squid will swim in place inside a water tunnel, which works something like a treadmill, while cameras record their movements and algorithms process the flow data.

That will produce a large amount of video and motion data, and much of it will have to be traced by hand, Krueger said, which is where students at each school come in. "Animals are animals and they do what they want," he said in the release.

He also hopes to turn the research into lessons for UNT's summer camps. The release did not say how the project is funded or how long it will run.

Sources

news.unt.edu

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Zane Boyd

Zane Boyd writes about community life, schools, public safety, and local events in Denton.

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