A warning wrapped inside a pet store purchase The broader message for those studying Hamilton Harbour is directed less toward scientists than toward everyday pet owners. What starts as a tiny orange fish in someone’s aquarium can grow into an invader reaching lengths up to one foot within just a few years-transforming local ecology by uprooting vegetation and competing fiercely against native species for food and space. The capture of 642 fish within one season indicates that tracking data can lead directly toward effective removal numbers; however, whether such efforts will truly reduce population size over time will likely depend as much on preventing new releases as on removing existing ones.
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