You will receive a weekly email featuring top MSU stories from the week, as well as content from across campus. Of course, the menu in the ocean is a lot larger than what your food chain shows! In the ocean, you have a plant-like organism, plankton, that is floating around in the waves. Food Chain of the Arctic Ocean. Evidence of contaminated sediments, whether they are in estuaries or in open ocean areas, is found in the marine food chain. Hydrophobic, persistent organic pollutants such as PCBs, dioxin, and DDT are the chemicals most likely to be accumulated and efficiently transferred throughout the marine food chain. Oceanography and marine science unravels many unsolved mysteries which fascinate mankind even today. Lesson 1 - Understanding Food Chains and Webs (2) Lesson 2 - An Ocean of Energy (2) Lesson 3 - Seafood and Human Health (1) Lesson 4 - Sustaining Our Ocean Resources (3) Unit 6 - Life in the Open Ocean (24) Overview - Life in the Open Ocean (1) Lesson 1 - Where in the World is the Open Ocean? Ocean Food Chain. The organisms can be seen as composing a food chain; the three types of organisms: producers, consumers, and decomposers, exist together and feed off each other according to a certain order. The food chain begins with the tiniest microorganisms who are the major producers of food in the ocean and are in turn, consumed by bigger lives, which are eventually preyed by the largest marine lives such as whales and sharks. Oceans, Revised Edition. The marine food chain is divided into the four categories outlined below. Killer whales are apex predators, which means they have no natural predators. For example, a seal likes to eat other fish like salmon , and seals in turn can be eaten by larger animals such as orca whales. New York: Facts On File, Inc., 2008. When you think of top ocean predators, you probably think of sharks. Great white sharks, to be exact. The open ocean has the greatest volume and vertical range of any life zone. Individual animals can eat many other types of plants and animals, not just one. Shrimplike creatures eat the diatoms. Sources Day, Trevor. Ocean Food Chain. Print. A food chain in the ocean begins with tiny one-celled organisms called diatoms, which make their own food from sunlight. But the true ruler of the sea is the killer whale. Made of interconnected food chains, food webs help us understand how changes to ecosystems — say, removing a top predator or adding nutrients — affect many different species, both directly and indirectly. The marine food chain is one amongst them. In the open ocean, tiny organisms called (animal plankton / bacteria / decomposers / phytoplankton) perform photosynthesis. Food webs describe who eats whom in an ecological community. They hunt in packs, much like wolves, which are also at the top of their food chain. While the ocean seems vast and unending, it is, in fact, finite; as the climate continues to change, we are learning more about those limits. Small fish eat the shrimplike creatures, and bigger fish eat the small fish. It is located in the north-most part of the globe. They are the primary producers in many (ecological pyramids / food chains / food webs trophic levels) that overlap to form a(n) (ecological pyramid / food chain / food … Now let's look at an example to see how this ocean food chain works. The surface is frozen over with large chunks of sea ice year round. This order keeps the ocean teeming with life. The Arctic Ocean is a frigid, harsh environment. 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