Title Lake Trout Are Bad News for Yellowstone Lake
Published January 22 2013
Author Cathy Newman
http://news.nationalgeographic.com/news/2013/1/130122-lake-trout-lake-yellowstone/
This article is about the lake trout invading Yellowstone Lake. With this invasion the Yellowstone cutthroat has become endangered. It is far outmatched by the lake trout in almost every way. From life span to weight to the fact that lake trout eat cutthroats. There has been a strong response by park rangers to get rid of the lake trout who have already caused the extinction of two out of the fourteen cutthroat species. Through their own system of netting the waters and employing commercial fishermen to help speed up the process the amount of lake trout has been cut down on significantly. The interesting part about this article is that no one knows how the lake trout made it into Yellowstone Lake. There has been speculation by biologists that a fisherman introduced the fish to try and diversify the fish species in the area but there is no way of knowing for sure. This introduction of foreign species in ecosystems that they can dominate has happened again and again. There has been an introduction of invasive species in the Great Lakes that threatened the fishing economy there as well as the ecosystem. There was also a very bizarre case of sharks being introduced into a river in Riga, Latvia. These sharks soon died in their new environment in Latvia because they could not survive the change in living conditions. Overall this introduction of new species into ecosystems is very dangerous. It can pose huge risks to local ecosystems and economies that depend on those ecosystems.
Published January 22 2013
Author Cathy Newman
http://news.nationalgeographic.com/news/2013/1/130122-lake-trout-lake-yellowstone/
This article is about the lake trout invading Yellowstone Lake. With this invasion the Yellowstone cutthroat has become endangered. It is far outmatched by the lake trout in almost every way. From life span to weight to the fact that lake trout eat cutthroats. There has been a strong response by park rangers to get rid of the lake trout who have already caused the extinction of two out of the fourteen cutthroat species. Through their own system of netting the waters and employing commercial fishermen to help speed up the process the amount of lake trout has been cut down on significantly. The interesting part about this article is that no one knows how the lake trout made it into Yellowstone Lake. There has been speculation by biologists that a fisherman introduced the fish to try and diversify the fish species in the area but there is no way of knowing for sure. This introduction of foreign species in ecosystems that they can dominate has happened again and again. There has been an introduction of invasive species in the Great Lakes that threatened the fishing economy there as well as the ecosystem. There was also a very bizarre case of sharks being introduced into a river in Riga, Latvia. These sharks soon died in their new environment in Latvia because they could not survive the change in living conditions. Overall this introduction of new species into ecosystems is very dangerous. It can pose huge risks to local ecosystems and economies that depend on those ecosystems.
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