Earth and Environmental Sciences

Using Ocean Observatories to Discover Habitat Associations
Matthew Oliver, University of Delaware

Adaptive ocean observatories that sample in both a Eulerian and Lagrangian framework play a critical role in discovering how and why marine organisms use dynamic seascapes. In a Eulerian framework, observations are made in a fixed location as a seascape flows by an observer. In a Lagrangian framework, observations follow a specific seascape parcel as it flows in a field. In this presentation we will examine how ocean observatories have unlocked unique habitat associations on multiple spatial scales in three marine systems by combining elements of the Eularian and Lagrangian approach in an ocean observatory. In the West Antarctic Peninsula, we show how Eularian sampling of autonomous underwater vehicle (AUV) made sense of unique spatial feeding pattern driven by planetary tidal patterns in penguins. In a global scaling up this approach, we show that semi-Lagrangian satellite derived seascapes are well tuned with known “Eulerian” climate waves and trends. Finally, we regionally merge both AUV’s and satellite observations in a Lagrangian framework to show that dynamic seascape analysis can lead to predictive models for coastal fisheries in the Mid-Atlantic region.

Background Review Article:
Oliver, M. J., Breece, M. W., Fox, D. A., Haulsee, D., Kohut, J. T., Manderson, J., Savoy, T. 2013. Shrinking the Haystack: Using an AUV in an Integrated Ocean Observatory to Map Atlantic sturgeon in the Coastal Ocean. Fisheries, 10.1080/03632415.2013.782861

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Earth and Environmental Sciences

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