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.
Seagrasses are flowering plants (Division Angiospermae) belonging to four plant families (Posidoniaceae, Zosteraceae, Hydrocharitaceae, or Cymodoceaceae), all in the order Alismatales (in the class of monocotyledons), which grow in marine, fully saline environments.There are 12 genera with some 58 species known.ome fish species that visit/feed on the seagrass raise their young in adjacent mangroves or coral reefs. Also, seagrass traps sediment and slows water movement, causing suspended sediment to fall out. The trapping of sediment benefits coral by reducing sediment loads in the water.