Freshwater, Invasive species, Practitioners, Research summaries, Restoration

Learning from failure: attempted eradication of red swamp crayfish in Malta did not deliver

Feature image: Invasive Red swamp crayfish (Procambarus clarkii) © Alex Caruana Author Alex Caruana shares learnings from their failed attempts to eradicate invasive crayfish from the Fiddien Valley in Malta. Invasive alien crayfish, like the Red Swamp Crayfish (Procambarus clarkii), are a major threat to freshwater ecosystems all over the world. They have a significant impact on freshwater food webs, can carry diseases such as … Continue reading Learning from failure: attempted eradication of red swamp crayfish in Malta did not deliver

AER | ESEMay 14, 2024May 14, 2024Leave a comment

Freshwater, Invasive species, Research summaries, Video

eDNA snapshots of invasion, infection and extinction from a freshwater crayfish tragedy

For the first time, a devastating crayfish plague outbreak has been monitored from the onset to crayfish extinction using eDNA methodology. David A. Strand and colleagues surveyed a watercourse over three years and discovered a remarkable correlation between eDNA fluctuations and host-pathogen dynamics. Noble crayfish (Astacus astacus) are macroinvertebrates that can be found in both lotic and lentic freshwater systems across most of Europe. Previously … Continue reading eDNA snapshots of invasion, infection and extinction from a freshwater crayfish tragedy