Overfishing is a topic in fisheries science and marine ecology referring to the exploitation of fish stocks at rates exceeding their capacity to replenish through recruitment and growth, thereby reducing biomass below biologically sustainable thresholds. It is quantitatively assessed using reference points such as maximum sustainable yield (MSY), fishing mortality (F), and spawning stock biomass (SSB), with overfishing indicated when F exceeds target or limit reference points or when SSB falls below critical levels. Overfishing alters age and size structure, disrupts trophic interactions, diminishes genetic diversity, and compromises ecosystem resilience, with management responses involving harvest control rules, catch limits, effort restrictions, and spatial or temporal closures.
How many sharks should a coral reef have? It sounds like a simple question, but almost nowhere on Earth is there a reef that has not at some time been fished or otherwise affected by humans, so there is no yardstick against ...
Ecology
20 hours ago
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For nearly two centuries, the Galapagos Islands have inspired scientific discovery. While some might think only of Charles Darwin and his journeys on the HMS Beagle, there is much more to discover. Today, María Antonia Izurieta ...
Plants & Animals
Jul 28, 2026
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The pearly razorfish (Xyrichtys novacula) is a small marine animal that lives in sandy coastal waters and feeds on creatures like shrimp. Known locally in Spain's Balearic Islands as raors, it is a popular dish in many homes ...
The Chinese bahaba (Bahaba taipingensis), a marine fish species endemic to the Chinese coast and known as the "Panda of the Sea," is critically endangered and one of the few marine fish listed as a first-class protected wild ...
Plants & Animals
Jul 23, 2026
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As dawn breaks over Ghana's Atlantic coast, artisanal fishing boats return to shore with last night's catch—baskets of snapper, crabs, rays and a distinct-looking fish locals call "esene."
Ecology
Jul 23, 2026
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The critically endangered sand tiger shark (Carcharias taurus) appears to have found a refuge off the northern coast of the state of São Paulo, Brazil, for mating and reproduction. This was revealed in a study conducted by ...
Plants & Animals
Jul 21, 2026
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Europe's great cormorant has recovered from near extinction to overabundance in half a century, stoking a long-running debate over population control between fishers troubled by its voracious appetite and conservationists.
Ecology
Jul 18, 2026
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A new United Nations report co-authored by researchers at the University of Portsmouth provides governments with a practical roadmap for building sustainable blue economies, as pollution, climate change and biodiversity loss ...
Environment
Jul 16, 2026
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Bottlenose dolphins in the Adriatic Sea are spending much of their time following trawlers to scavenge for food, scientists say. The Adriatic seabed has been plowed by bottom trawlers for decades, resulting in ecosystem damage. ...
Plants & Animals
Jul 3, 2026
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Atlantic and European sturgeon once called Britain's rivers home and could do so again, following research using Natural History Museum specimens. These fish are among the biggest found in Europe and undertake epic migrations ...
Plants & Animals
Jul 2, 2026
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