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Given the short summers in Alaska, most stickleback have time and stamina for only one brood, but increasingly they are rearing two broods a summer as climate change ushers in earlier springs.These factors could have wider ecological effects, as three-spine stickleback are a dominant fish species in many northern lakes.
Stickleback represent almost half of the fish found in Lake Aleknagik, with juvenile sockeye salmon nearly matching that percentage."If stickleback are increasing in abundance because of their modified reproduction strategy, this can have ecosystem implications for the productivity of species we commercially care about, like sockeye salmon," Hovel said.Researchers don't yet know if breeding more often and earlier in life is beneficial for three-spine stickleback, but it does appear that over the long term, the fish will likely increase their abundance.Some cookies need to be allocated in you computer so our website can work properly, you may not be able to deactivate them. Browse thousands of Platinum gay personal ads - all completely free.Sign up now to place your free gay personal ad and check out the ads of other available gay singles in Togiak!
One of Alaska’s most abundant freshwater fish species is altering its breeding patterns in response to climate change, which could impact the ecology of northern lakes that already acutely feel the effects of a changing climate, research suggests.
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"We don't know exactly what this means for demographics of this species," Hovel explained.
"It could also mean that fish are living shorter lives because there's a higher physiological cost to breeding more than once.
One of Alaska's most abundant freshwater fish species is altering its breeding patterns in response to climate change.