Primary consumers are usually herbivores that feed on autotrophic plants, which produce their own food through … Plankton are microscopic organisms that float and drift on the surfaces of large bodies of water, especially the oceans. This particular food web starts with Phytoplankton, a photosynthetic primary producer that receives its energy from the sun and does not need to consume any organism. Phytoplankton serves as a primary producer in the aquatic food chains. well there are many species of fish in the world. A primary consumer is an organism that feeds on primary producers.Organisms of this type make up the second trophic level and are consumed or predated by secondary consumers, tertiary consumers or apex predators.. Trophic levels. The Phytoplankton is consumed by Zooplankton, a primary consumer. Zooplankton is just one of the many important consumers in the Acrtic Ocean. If phytoplankton dies before it is eaten, it descends through the euphotic zone as part … Within a coral reef ecosystem, the producers are the sea weeds, the sea grasses and the plankton species. There are many other consumers such as whales, Sharks, seals, birds and much more. Even though primary consumers feed on producers, they … Zooplankton are primary consumers or the second step in the food chain. Some of the primary consumers or herbivores living on the land are chipmunks, mice, horses, birds, deer and some insects. The primary consumers are the coral polyps, some mollusk species, the zooplankton species, the starfish, the crabs, the sea urchins, the green sea turtle and some smaller fish living in the coral reef system. Zooplankton are tiny animals that feed off of either phytoplankton or other zooplankton. 10 Percent Energy Rule. (Lab 20) For each of these species in the simulation list the type of organism it is (a. phytoplankton or zooplankton, b. primary producer, primary consumer, or secondary consumer) Trout fish Secondary consumer The phytoplankton are the base of the food chain. Zooplankton get their food from eating phytoplankton. As primary consumers, zooplankton are the crucial link between the primary producers (mainly phytoplankton) and the rest of the marine food web (secondary consumers). Primary or Secondary depends on the fish. marsh grass :primary producer primary A marsh hawk :third level 3rd D plankton- eating fish :second level 2nd C Both phytoplankton and zooplankton are similar in size and their ecological importance. Primary consumers are usually herbivores, feeding on plants and fungus. These organisms serve as an intermediary species in the food chain, transferring energy from planktonic algae (primary producers) to the larger invertebrate predators and fish who in turn feed on them. Producers. Many photosynthesize, using the sun’s energy to build carbohydrates. Primary producers — including bacteria, phytoplankton, and algae — form the lowest trophic level, the base of the aquatic food web.Primary producers synthesize their own energy without needing to eat. The main difference between phytoplankton and zooplankton is that phytoplankton is a plant-like organism whereas zooplankton is an animal-like organism. Zooplankton are highly sensitive to changes in aquatic ecosystems. Fish, zooplankton, snails, sea urchins are a few marine primary consumers. Decomposer: the decomposer is a very primary decomposer in the world, bacteria (farthest right). The zooplankton community is an important element of the aquatic food chain. Primary Consumer Definition. And fungus float and drift on the land are chipmunks, mice,,. Large bodies of water, especially the oceans that phytoplankton is a plant-like organism whereas zooplankton is one! 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