"Algae lingers on the underside of sea ice and as spring begins there is a major increase in its growth,β said Brown. βIt is then eaten by tiny creatures called zooplankton, and they in turn are eaten by fish that are in turn eaten by seals, which are in turn consumed by polar bears. But if ice caps are melted, algae levels drop and the whole food chain is disrupted.β- theguardian.com.....based on this information and images below....which claim can be made?