That's the main finding of a recent University of Washington study published in Global Change Biology that analyzed reproductive patterns of three-spine stickleback fish over half a century in Alaska's Bristol Bay region. While several papers have speculated that conditions brought on by a warming climate may allow animals to breed more often in a single year, this has only been empirically shown in insects. The data were collected from 1963 to 2015 in Alaska's Lake Aleknagik, home to one of the UW's Alaska Salmon Program research stations. While the program's monitoring was designed to track the commercially important sockeye salmon population, scientists also meticulously recorded every other fish present, including three-spine stickleback. Stickleback are born near the shore, then move to the middle of the lake to feed on zooplankton. Using these data and additional environmental data, researchers found that three-spine stickleback spawned earlier in years when ice breakup occurred earlier, and in some years, the fish produced more than one brood. These factors could have wider ecological effects, as three-spine stickleback are a dominant fish species in many northern lakes.
I believe this to be a serious threat to the environment because if the fish don't breed the same, there can be changes in the environment. Fishes in Alaska usually live naturally and usually have no problem breeding because there are no dams to block their path. These type of fish usually help the environment around them because their waste or bodies act as fertilizers. These fertilizers are what help plants and trees grow its keeps the environment green. We need to investigate and do research as to why these fishes are changing their breeding patterns. If anything we need t save the fish population, especially since their population is decreasing the central valley.
https://www.sciencedaily.com/releases/2017/01/170119084102.htm
I believe this to be a serious threat to the environment because if the fish don't breed the same, there can be changes in the environment. Fishes in Alaska usually live naturally and usually have no problem breeding because there are no dams to block their path. These type of fish usually help the environment around them because their waste or bodies act as fertilizers. These fertilizers are what help plants and trees grow its keeps the environment green. We need to investigate and do research as to why these fishes are changing their breeding patterns. If anything we need t save the fish population, especially since their population is decreasing the central valley.
https://www.sciencedaily.com/releases/2017/01/170119084102.htm