Today and last night are chilly, with lows last night of 62 degrees farenheit. This in not very cold for dolphins, and I wouldn't think that it caused the stranding. More likely is some sort of virus or a toxic algal bloom. This year, another large bloom has been reported forming north of the Keys and stretching to the south of Tampa. Fishermen have reported a lack of fish and unhealthy conditions in the algal blooms.
Here is a link to the local paper's story about the dolphin stranding.
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