Feeding frenzy

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Carp (Cyprinus carpio) competing for food at the pond of the Royal Palace Agdal of Marrakech in Morocco
Herring gulls and great black-backed gulls photographed in Vestfjord, Norway eating fish remnants after fishers cleaned their catch.

Ecology and Feeding Frenzy[edit | edit source]

In the realm of ecology, a feeding frenzy refers to a unique phenomenon observed in certain predatory species. These episodes occur when predators encounter an unusually large concentration of prey, often leading them to behave in an extreme and aggressive manner, rapidly consuming prey and sometimes even attacking other predators. This aggressive feeding behavior is not only driven by the abundance of prey but also by competition amongst the predators.

Origins and Observations[edit | edit source]

The term "feeding frenzy" is often associated with marine environments, especially with sharks, such as the lemon shark. In scenarios where large schools of fish are present, sharks can be seen rapidly and aggressively pursuing and consuming their prey. In the throes of a feeding frenzy, sharks are known to go wild, often biting anything in their vicinity, including non-prey items and even other sharks.[1]

However, this phenomenon isn't exclusive to marine environments or to sharks. Freshwater piranhas, for instance, are another species notorious for exhibiting feeding frenzy behavior.

Functional Explanations[edit | edit source]

The underpinning reasons for a feeding frenzy are multifaceted:

  • Abundance of Prey: The sheer number of prey available can stimulate the predatory drive in animals, leading to a feeding frenzy.
  • Competition: When multiple predators are in proximity and prey is abundant, a heightened competition can emerge. Predators may engage in a feeding frenzy in an attempt to maximize their individual intake before others consume all available prey.[2]

Implications[edit | edit source]

Beyond the immediate impact on prey populations, feeding frenzies can have wider ecological ramifications:

  • Risk of Injury to Predators: In the chaos, predators risk injuring each other, which can have short-term and long-term health implications.
  • Shift in Ecosystem Dynamics: A sudden reduction in a prey population can lead to ecological imbalances, affecting other species within that ecosystem.


"A shark feeding frenzy occurs when a number of sharks fight for the same prey. Sharks are usually solitary diners, and a feeding frenzy indicates why that might be. To an observer, it looks like the sharks lose their mind biting at anything that's in their way in an uncontrollable rage. They thrash around, their snouts elevating and their backs arching, all signs that indicate an impending attack. Some accounts tell of sharks eating each other and of sharks continuing to feed even after they've been disemboweled by other sharks."[3]

See also[edit | edit source]

References[edit | edit source]

  1. Staddon. Adaptive Behavior and Learning. Foraging and Behavioral Ecology. Retrieved from: http://psychandneuro.duke.edu/uploads/assets/Chapter09.pdf
  2. HowStuffWorks "What causes a shark feeding frenzy?"

.[1] It has also been used as a term within journalism.[2]


fr:Attaque de requin#La frénésie alimentaire pl:szał jedzenia

pt:Frenesi alimentar

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