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Chicks are fed on fish, squid, krill, and stomach oil. Stomach oil is oil composed of neutral dietary lipids that are the residue created by digestion of the prey items. As an energy source for chicks it has several advantages over undigested prey, its calorific value is around 9.6 kcal per gram, which is only slightly lower than the value for ...
The pelagic food web, showing the central involvement of marine microorganisms in how the ocean imports nutrients from and then exports them back to the atmosphere and ocean floor. A marine food web is a food web of marine life. At the base of the ocean food web are single-celled algae and other plant-like organisms known as phytoplankton.
The petrel's diet is mainly krill, squid and small fish. Food is usually seized when the bird is on the surface but they also plunge-dive to obtain food, diving up to a depth of 1.5 m (4 ft 11 in).
Antarctic krill is the keystone species of the Antarctic ecosystem beyond the coastal shelf, [22] and provides an important food source for whales, seals (such as leopard seals, fur seals, and crabeater seals), squid, icefish, penguins, albatrosses and many other species of birds. Crabeater seals have even developed special teeth as an ...
A freshwater aquatic food web. The blue arrows show a complete food chain (algae → daphnia → gizzard shad → largemouth bass → great blue heron). A food web is the natural interconnection of food chains and a graphical representation of what-eats-what in an ecological community.
Photo shot through a polarizing filter of a Cranchiidae sp from the Operation Deep Scope Expedition 2004. This squid, about four-inches across, uses transparency to hide from potential predators.
Between the dancing squid appetizer and the gasping fish main course, looks like a solid meal we'll definitely have to pass on. More fun reads: Dog desperately tries to befriend little baby bunny
The position that a fish occupies in a food web is called its trophic level (Greek trophē = food). The organisms it eats are at a lower trophic level, and the organisms that eat it are at a higher trophic level. Forage fish occupy middle levels in the food web, serving as a dominant prey to higher level fish, seabirds and mammals.