Sentence examples for native fish populations from inspiring English sources
Likely to deplete native fish populations from competition and predation of eggs and fry.
While this dam is too small to flood any villages, the trickle of water that flows downstream below it is too meager to support native fish populations.
A primary concern among the many potential effects of fire is the effects of fire and fire management on persistence of native fish populations.
The filter-feeding mussels have since helped to upend the ecosystems of the Great Lakes, fouling beaches, promoting the growth of poisonous algae and decimating some native fish populations by eating the microscopic free-floating plant cells on which their food web depends.
Scientists emphasize that human consumption is only part of what is needed to control invasive species and restore native fish populations, and that a comprehensive plan must include restoring fish predators to depleted habitats and erecting physical barriers to prevent further dissemination of the invaders.
Experts said the most recent findings, from Calumet Harbor and the Calumet River, could mean that the carp has found its way beyond an elaborate barrier system built at the cost of millions of dollars to prevent the fish's access to the Great Lakes and its delicate ecosystem, where it has no natural competitors and would threaten the life of native fish populations.
However, decisions regarding the delivery of water to maximise environmental benefits, including native fish population health, are complex and difficult.
Last year, the Kensington mine in Alaska was permitted to dispose of toxic mine waste directly into a freshwater lake, decimating its native fish population.
That said, they were a rapidly proliferating invasive species and they outcompeted other species that occupied the same niche, until a native fish population (whose numbers declined as a result of the algal bloom) bounced back and controlled the mussels population.
Many native Lake Erie fish populations experienced steady declines from 1900 1970s, including the lake trout, lake sturgeon Acipenser fulvescens Rafinesque 1817, and walleye [ 81, 84].
Here, I assessed whether newly formed lentic habitats drive morphological trait divergence of native stream fish populations and predicted that fish morphologies would demonstrate consistent divergence in replicated reservoir systems.
