Invasive alien species are widespread in freshwater systems compared to terrestrial
ecosystems. Among crustaceans, crayfish in particular have been widely introduced and are …

Managing and conserving wild animal populations relies on accurately describing changes
in populations through time. Density estimates, sex ratios and size structures are used to …

Keystone species can provide a focal point for designing conservation and management
strategies that protect a diversity of social–ecological values in aquatic ecosystems; …

Common carp (Cyprinus carpio; hereafter carp) is a highly invasive freshwater fish that has
colonised river basins across the world causing ecological degradation. In regulated rivers …

Context. Handling of wild animals can have adverse effects on individuals that scale up to
impact populations and ultimately species. Limited mobility and high harvest pressure …

Altered flow regimes remain one of the most serious threats to ecological sustainability of
estuarine fish populations throughout the world. Estuary Perch (Percalates colonorum) is an …

Globally, overharvest contributes to population declines of fish and invertebrates.
Quantifying the effects of fishing and associated harvest is essential to preventing such …

Invasive crayfish are among the major threats to freshwater ecosystems, with the signal
crayfish, Pacifastacus leniusculus, being one of the most successful crayfish invaders in …

Globally, freshwater crayfish are imperilled, particularly large species harvested for human
consumption. Crustacean fisheries typically rely on size-and sex-specific harvest regulations …

The extinction of species not only contributes to the loss of biodiversity but also the
disruption of ecological interactions, processes and functioning. This is particularly true with …