Thankfully, not many of us anglers have to deal with the dreaded American Signal crayfish when fishing. Unfortunately, those who regularly fish rivers and lakes plagued by these invasive pests can ...

The UK native white-clawed crayfish (Austropotamobius pallipus) crayfish is under considerable pressure throughout the UK from the invasive American signal crayfish and a fungal pathogen (crayfish ...

The newts live only in Oregon’s Crater Lake and their populations have crashed in recent years due to the expansion of introduced signal crayfish and warming lake temperatures from climate change.