Recent NOAA Fisheries 2024 Stock Status reports show that 45% of surveyed fish populations are at or below historical baselines, with Atlantic cod and Pacific sardine falling short of sustainable yield thresholds. The data, compiled from 2023 field surveys across the U.S. West Coast and Gulf of Mexico, indicate a continued decline in key commercial species, underscoring the need for stricter catch limits and enforcement.
Simultaneously, a new Earth.com study tracing shark records over 7,000 years reveals that prehistoric shark abundance was markedly higher than today, challenging the assumption that modern declines are solely due to recent overfishing. The research, based on fossilized teeth from 13 global sites, shows a 70% reduction in large shark species since the last Ice Age, suggesting long‑term ecological shifts beyond current fishing pressures.
Together, these findings highlight that while contemporary overfishing remains a critical threat, historical data indicate broader, multi‑century trends influencing marine biodiversity.