Species that are considered uncertain risk need a more in-depth assessment beyond the Risk Summary to better define the species’ risk to U.S. environments.
T. trigonocephalus has established itself in estuaries in California. The latest research indicates that this species may be on the decline in these areas due to competition from another gobiid invader. Though established, there has not been significant research detailing the impacts of this invader. The government of New South Wales lists them as an invasive that “competes with native species”. No research was found to detail the competition, however.
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Uncertain Risk
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