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| Journal 16-James
Lindholm: Mission Day 6: Saturday, August 24, 2002 Yesterday provided a bit of a departure from the last few days, with Sarah and I spending the majority of the day tracking tagged fish with the diver-held receiver and video taping their behavior. The goal here is to record data on post-surgical fish behavior as well as their habitat use. The fixed receiver array that we deployed prior to the mission will track the larger scale movements of the fish we tag (at the scale of multiple kilometers). The diver held receiver provides us an opportunity to view the actual association between individual fish and seafloor habitat or landscape. This project is occuring within the larger context of a global effort to understand the movements of fishes relative to landscapes and the boundaries of MPAs. In addition to our work here in the Keys, we are either working directly, or through collaborators, at sites in the Gulf of Maine (northwest Atlantic) and Belize. Additional work is planned for New Zealand, California, and Kenya. We hope to better characterize fish movement behavior such that management measures, such as marine protected areas, can be designed optimally for more effective managment.For instance, we have tagged a total 11 princess parrotfish and 5 blue parrotfish, both grazing species, 7 hogfish, a benthivore (or bottom feeder), and 7 yellowtail snapper, a fish which often feeds up in the water column. Data on movement from these three functional groups will help managers understand how their approaches to management protect the community of fishes, rather than a single species alone. |
Mission
Date: August, 2002 Mission Summary Aquanaut Profiles Expedition Journals Mission Pictures |
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