The abiotic, or non-living, factors influencing the world’s oceans include temperature, sunlight, wind and dissolved minerals. These factors contrast with biotic factors, such as fish, plankton and dolphins. Both biotic and abiotic factors affect local ecosystems, but the biotic factors are often determined first by the abiotic factors.Know More
Each summer, the plankton population in the Arctic Ocean grows to its highest levels. This primarily occurs because the melting ice, which is caused by the abiotic factor of temperature, carries numerous minerals with it as it flows into the ocean. This abundance of plankton attracts whales and fish, which often make yearly migrations to these northern areas. These fish and whales benefit from the plankton, and when they return south, predators, who benefit from the abundant minerals, eat the whales and fish.
Another example of an abiotic factor is pollution. Pollution can take many forms, including dangerous chemicals, such as petroleum, trash and agricultural runoff. Additionally, thermal pollution may occur when hot water from factories and power plants is discharged into the water. This causes a rise in the local water temperature, which impacts the plants and animals living in the area. If the animals cannot adapt to the warm temperatures, they are likely to move away or die out.Learn more about Bodies of Water
The average water temperature of the Pacific Ocean varies according to location. In some regions near the equator, such as Guam, the ocean temperature reaches 86 degrees Fahrenheit, while near the poles, the water temperature dips to 2 below zero.Full Answer >
The temperature of the Labrador ocean current off Canada's East Coast is below 32 F. The Gulf Stream, the ocean current that originates in the Gulf of Mexico and lies further east than the Labrador current, is a western boundary current and is very warm.Full Answer >
Examples of commensalism in the ocean include sea anemones and clownfish, crabs and barnacles, as well as certain shrimp and gobies. Commensalism describes the relationship between two animals in which one benefits from the association and the other derives neither benefit nor harm from the relationship. Commensal relationships differ from parasitic relationships, in which the host is harmed from the relationship.Full Answer >
Most of the decomposers in the ocean, at every trophic level, can be described as either animals or microbes. Animal decomposers live as scavengers, usually on the sea floor, and microbial decomposers, such as bacteria, can be found on nearly every surface or floating freely in the water.Full Answer >