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Understanding the movements of baleen whales: using satellite telemetry and GIS data to understand whale migration patterns in the Gulf of Maine Winn JP.

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Presentation on theme: "Understanding the movements of baleen whales: using satellite telemetry and GIS data to understand whale migration patterns in the Gulf of Maine Winn JP."— Presentation transcript:

1 Understanding the movements of baleen whales: using satellite telemetry and GIS data to understand whale migration patterns in the Gulf of Maine Winn JP 2002

2 “Studying the behavior of large whales has been likened to astronomy. The observer glimpses his subjects, often at long range; he cannot do experiments, and he must continually try to infer from data that are usually inadequate” (Whitehead 1985) Winn JP 2002

3 Center for Coastal Studies and large whale disentanglement Photos courtesy CCS

4 Satellite telemetry Buoy provides Satellite locations VHS transmission Provides a means to relocate entangled whales Photos courtesy CCS

5 Understanding Whale Movements in Relation to Oceanographic Features Bathymetry Sea Surface Temperature Chlorophyll Whale track

6 Visualizing the Gulf of Maine Bathymetry effects Circulation Currents Tidal mixing Upwelling

7 Whale track locations in the Gulf of Maine Whale movements in relation to bathymety data

8 The Humpback Whale “Verga” and its Track Over the Bathymetry Data Movements from between productive regions from Stelwagon Bank to George’s Bank

9 Images of Bathymetry Data Underlying Verga’s Track View of Cape Cod and Grand Banks from the North

10 Verga’s Track Over Sea Surface Temperature Movements along frontal zones

11 Winn JP 2002 Potential Problems with Entanglement Data Normal behavior? Animal health is unknown or poor Drag from buoy or gear may influence moments Extensive harassment of the animals has occurred Photos courtesy CCS

12 Current Related Projects: Low Drag Buoy Construction Current CCS Buoy Low Drag Buoy Currently Under Construction at UMaine

13 Net Gun Deployment Under Development at UMaine New technique for Satellite Tag Deployment

14 Questions ? Photos by JW & BW 2002


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