The American Automobile Association says that gasoline prices are they lowest they've been for this time of year since 2009, the average price for a gallon of gas was $2.66 on July 31.
Threats to Seagrasses: 1  Natural threats to seagrasses include storms, climate changes such as floods and droughts affecting water salinity, disruption of seagrasses by small predators as they search for food, and grazing by animals such as sea turtles and manatees.eagrasses may be confused with seaweeds (marine algae), but they are not. Seagrasses are vascular plants and reproduce by flowering and producing seeds. Marine algae are classified as protists (which also includes protozoans, prokaryotes, fungi and sponges), are relatively simple and reproduce using spores.
Seaweed is the common name for countless species of marine plants and algae that grow in the ocean as well as in rivers, lakes, and other water bodies.Kelp forest in the Channel Islands National Marine Sanctuary and National Park.Some seaweeds are microscopic, such as the phytoplankton that live suspended in the water column and provide the base for most marine food chains.Some are enormous, like the giant kelp that grow in abundant âforestsâ and tower like underwater redwoods from their roots at the bottom of the sea.elp forest in the Channel Islands National Marine Sanctuary and National Park. Some seaweeds are microscopic, such as the phytoplankton that live suspended in the water column and provide the base for most marine food chains.