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it's not uncommon to find large fish floating on the surface, either dead or near death, during the hottest months of summer.
"The fish actually died of natural causes," he explained. "but the circumstances are specific to large fish. As fish grow, they are forced to live in cooler water. The larger the fish, the colder the water needs to be. During the summer, when the surface temperatures rise, the larger fish must go deeper to find the colder water. But this separates them from their prey base.
"When they come to the surface to feed, lactic acid starts to build up. If the fish spends too much time chasing food or stays in the warmer water too long, they're not able to get back down and they die."
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