Toisc stoic dhomhainfharraige a bheith thar a bheith soloite ag an‑iascaireacht, is féidir le hídiú stoic tarlú i dtréimhse ghearr agus d'fhéadfadh an t‑athbhunú tamall fada a thógáil nó d'fhéadfadh sé teip ar fad.
Due to deep-sea stocks' high vulnerability to fishing, stock depletion can occur within a short period of time, and recovery might take very long or fail.
Tá cumas teoranta ag na héiceachórais trastíre agus uisceach atá riachtanach do tháirgeadh na n-acmhainní áfach, fad is a bhíonn éilimh ag coimhlint lena chéile maidir lena úsáid na gcumas sin, agus go minic ní dhéantar iad a bhainistiú ar an mbealach is fearr, mar atá léirithe mar shampla trí mheathlú mór a tháinig ar chion carbóin agus ar thorthúlacht na hithreach agus an t-ídiú ar an stoc éisc.
However, the capacities of the terrestrial and aquatic ecosystems required for their production are limited, while there are competing claims for their utilisation, and often not optimally managed, as shown for example by a severe decline in soil carbon content and fertility and fish stock depletion.