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Transcript of Littoral Zone
Sublittoral Zone Problems Caused by Humans Overexploitation Eulittoral Zone Pollution The supralittoral, or spray, zone is only submerged in water during unusually high tides or during severe storms. It starts at the high-tide line and goes toward dry land. Basically the shore. The eulittoral zone, or intertidal zone,
is the area between the high-tide and low-tide lines (of an ocean). Overexploitation
Climate Change Problem: Humans are directly responsible for the decline of population of certain animals in the littoral zone. Humans harvest animals and plants for food, bait, home aquariums, collections, etc.
Problem: Human-caused pollution
such as oil spills, discarded trash, sewage spills, and toxic chemical runoff. These type of pollution are detrimental to the wildlife of the littoral zone. The littoral zone the part of the ocean closest to the shore. It is composed of 3 sub-zones:
Sublittoral Zone Life in the Supralittoral Zone Barnacles
Whelks Ex: Life in the Eulittoral Zone Ex: Anemones
Sponges The sublittoral zone, or the neritic zone, starts immediately below the eulittoral zone. This area is permanently submerged in water. Life in the Sublittoral Zone Ex: Barnacles
Mussels Sea Lettuce
Characteristics of the Littoral Zone Temperature: Ranges from the moderate temperature of the water to air temperatures that vary from below freezing to scorching. Salinity: Depends on the salinity of the sea/ocean. Might be less salty in certain areas because of diluting rainwater or runoff. Light Penetration:
Supralittoral Zone --> Great amount of sunlight
Eulittoral Zone --> Good amount of sunlight as it is in the euphotic zone. Sublittoral Zone --> Usually little sunlight Moisture:
Supralittoral Zone --> Usually dry (wet during high tide splashing or storms)
Eulittoral Zone --> Somewhat dry to very wet
Sublittoral Zone --> Very wet Soil Type: Mainly sand or cobblestone Solution:
Set limits on the amount of animals harvested by people and businesses. Solutions:
Regulations on waste disposal
Promote proper waste disposal
Climate Change Problem: Global warming is a serious problem as it is proven harmful to the ecosystems of many biomes. With climate change, species are forced to die or adapt. Human activities such as excessive use of automobiles and burning of fossil fuels have contributed to the rise of CFCs/greenhouse gases (which are responsible for global warning) Solutions:
"Greener" Energy Sources http://www.onr.navy.mil/Focus/ocean/regions/littoralzone1.htm
http://en.wikipedia.org/wiki/Intertidal_ecology Additional Sources http://www.lakeaccess.org/ecology/lakeecologyprim9.html