The food web in the ocean ecosystem is essential to the maintenance and successful growth and development of life in the marine ecosystem. The food web in the ocean ecosystem relates to the way in which all life interacts and relies on other species for survival. From the smallest micro organism the food web in the ocean ecosystem shows how each living creature follows their life cycle by interacting with their environment. An ocean ecosystem is where there is more saltwater than freshwater involved in the balance of the landscape. The ocean ecosystem includes all life forms and land forms that might occur in each location.
The food web in the ocean ecosystem is subject to tidal zones, coral reefs, river mouths, estuaries and reefs where saltwater is predominant. The life forms that live as part of the food web in the ocean ecosystem will be adapted to life in a salty environment.
Even tropical marine ecosystems will have similar conditions as underlying criteria for classification. The levels of saltwater will effect the food web in the ocean ecosystem in the symbiotic relationships needed between marine ecosystem and sustainable life.
In studies of the food web in the ocean ecosystem the predatory nature of some forms of life will mark the food chain of the particular area. In the marine ecosystem the food chain begins with the largest predatory mammals and fish and will continue down through the strata of life forms to the smallest poly and coral life. Seals, whales and dolphins exist in a marine ecosystem. They make the top of the food web in the ocean ecosystem with fish such as sharks and large predators like turtles and sting rays.
Further down the food web in the ocean ecosystem are the smaller fish and crustaceans. It is the way that these creatures exist among the plant life and coral formations that make up the unique relationships in the marine ecosystem. Without plant life or plankton the larger species could not exist. Without the tides, the currents and the sand bars or rock reefs the plants could not exist. Without the movement of schools of fish, jelly fish, rays, eels and turtles, the levels of life would not remain in balance.
The impact of human activity on the food web in the ocean ecosystem may not at first be discernible, but study would give an idea of how man has changed the balance of life in any marine ecosystem. Not only through the act of fishing, does human activity impact on the food web in the ocean ecosystem, but activities such as fertilization of crops can effect the delicate balance in the marine environment. Toxins washing into the tidal zones, plastics floating through a marine ecosystem, long lines, waste material and oil spills can all damage a fragile ocean ecosystem.