Unfortunately, this potential power struggle between two apex predators can have devastating effects on the marine ecosystem. Orcas targeting sharks can ... on the marine food web." ...

A pair of orcas terrorizing white sharks off the coast of South Africa may have captured the popular imagination, but their activities may be quite damaging, new research suggests.

The sudden disappearance of great white sharks from South Africa’s False Bay is causing major changes in the ocean ecosystem, ...

The study provides real-world evidence of food web cascades driven by the loss of top-down predation pressure from great white sharks, consistent with ecological theory and laboratory experiments.

The return of apex ... after shark populations had recovered. The findings indicated that small mesopredatory reef fishes exhibited anti-predator behaviors—including less foraging for food ...

The loss of apex predators doesn't just harm ecosystems ... a top predator leads to cascading effects on the marine food web.” As shark populations continue to face threats globally ...

Source: BBC The disappearance of Great white sharks (Carcharodon carcharias ... marine populations. Role of apex predators in maintaining ocean health and food web balance The researchers employed ...

National Park Service photo Great white sharks have long been considered the top of the food chain in waters off ... Orcas are “the ocean’s top predator,” NOAA Fisheries says, can reach ...

Here's why the world's largest known predatory fish, the great white shark, is the ultimate apex predator of the ocean. Great white sharks have one of the strongest bites in the animal kingdom.