Biological Productivity Nutrients Interactions Biology Diagrams Food chain. A simple introduction to the idea of a lake's food web is to think of it simply as bigger fish eat smaller fish that eat the small floating critters that eat algae, as in the first diagram. Algae are the primary producers, that is, they are able to convert light, nutrients, minerals, and carbon dioxide into organic materials and
This link in the food chain typically involves zooplankton grazing on algae but also includes larval fish eating zooplankton and a variety of invertebrates that eat attached algae and higher plants. Other animals, such as small fish, secondary consumers (third trophic level) eat the primary consumers and thus are considered secondary consumers.
Lake Environment: The Aquatic Food Chain Biology Diagrams
All organisms in those food chains are influenced by non-living (abiotic) factors and living (biotic) factors in their environment. Abiotic conditions (e.g., temperature, pH, clarity, dissolved oxygen, nutrients, etc.) and biotic conditions (e.g., predation, disease, etc.) of the lake impact organisms in the food chain and help to provide a Bacteria and fungi are the main decomposers in a lake ecosystem. They recycle vital elements, ensuring the continuation of the food web. The Lake Food Web: A Deeper Look. The food web in a lake is a particularly complex and dynamic system. It is sensitive to changes in water quality, nutrient levels, and other environmental factors. An essential part of a food chain is that each individual organism is of equal importance to the ecosystem. Thus, the organisms are interdependent. In a simple food chain, aquatic bugs eat the plants, and small fish eat the bugs. Big fish eat the little fish, and people catch and eat the big fish. However, organisms often feed on more than one
Great Lakes Food Web Diagrams. GLERL has developed food web diagrams for all of the Great Lakes and Lake St. Clair. The major species in each lake are briefly described, along with a diagram summarizing the ecosystem energy flow (who eats or is eaten by whom!). These diagrams are based on a model from a paper published in 2003 supported by both
Teaching Great Lakes Science - Michigan Sea Grant Biology Diagrams
They can be carnivores or omnivores. Top predators typically sit atop the food chain without predators of their own. Examples include fish such as lake trout, walleye, pike and bass, birds such as herons, gulls and red tailed hawks, bearsโand humans! Food Webs In reality, many different food chains interact to form complex food webs.
