Marine Amphipods in Italian Seas: A Detailed Inventory Unveils Hidden Diversity and Ecological Shifts

This extensive amphipod catalog does more than list species. It sharpens our understanding of marine ecosystem function and response to stressors like climate change and pollution. Amphipods influence nutrient cycling and food webs that sustain larger marine animals. Detecting 11 non-native amphipod species points to shifts in Mediterranean biodiversity, likely driven by shipping, warming waters, and habitat disruption. These invaders can outcompete local fauna or alter ecosystem dynamics, posing challenges for conservation and fisheries management. For policymakers and marine managers, this inventory provides a baseline to monitor biodiversity trends and identify priority areas for protection. Open data access allows scientists worldwide to track changes over time, improving models and response strategies. This could inform targeted marine protected areas or pollution controls focused on amphipod-rich habitats. Fisheries and coastal industries also benefit. Healthy amphipod populations underpin food chains supporting commercially valuable fish. Understanding amphipod distribution helps anticipate fish stock shifts, guiding sustainable harvests. The work highlights the value of long-term biodiversity monitoring combined with transparent data sharing. Without it, subtle but critical ecosystem changes could go unnoticed until larger collapses occur. This inventory is as much an early warning tool as it is a scientific achievement.