
Interview Question 4 with Dr. Kelly Benoit-Bird
4. How do you use acoustics to study foraging behavior?
Question 4 transcript:
"Well there is a lot of different ways that we use acoustics. The first one is to use active sonar, or things like an echo sounder, we typically use on the boat to find a fish. The systems that we use are a little bit more complicated than what you might have on your boat at home, for those of you who live on the coast. In Hawaii everybody has a boat pretty much. By using that we can look at both the fish that the dolphins are eating and the dolphins themselves because dolphins are really unique. Animals in the ocean are known to have air inside their lungs so that makes them a different target than the fish that they are eating. So that's one way to look at both the prey and the predators by using active acoustics or sonars. But other ways that we use it are to put a hydrophone in the water and listen to the sounds that the animals are making to try and learn how they use their sonar while they're forging. Another technique that we're now working with, with the fish, is to put a tag on the fish that makes noise and then we can follow that tag in three dimensions in the water, while we use sonar to look at what their prey is doing because it is much more difficult to separate a big fish from littler fish than it is to separate a dolphin from little fish."
Interview Questions:
- How did you first become interested in science?
- What is the focus of your research and why did you choose this field of study?
- What have been some of the recent discoveries in the foraging behavior of spinner dolphins and deepwater snappers?
- How do you use acoustics to study foraging behavior?
- What challenges have you faced when studying the behavior of animals that forage beneath the sea surface?
- What has most surprised you about the foraging behavior of spinner dolphins?
- What skills are important in your area of research?
- What are the opportunities in studying foraging behavior? Can people without PhD's participate in some way in this type of research?
- What is the greatest impact/relevance of your research?
- What continues to inspire you about your work?
- What advice would you give a high school student who expressed interest in pursuing a career in your field?
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