Download
1 / 23
230 likes | 421 Vues
Salt Water Biome. Daniel Parmet Matan Ayash Yakir Gola. Mangrove Swamps - coastal wetlands found in tropical and subtropical regions . Climate -Tropical and subtropical coasts of Africa, Australia, Asia and North and South America. -In the U.S., mangroves are commonly found in Florida.
E N D
Salt Water Biome Daniel Parmet MatanAyash YakirGola
Mangrove Swamps - coastal wetlands found in tropical and subtropical regions • Climate -Tropical and subtropical coasts of Africa, Australia, Asia and North and South America. -In the U.S., mangroves are commonly found in Florida. -Tend to be in warmer places
Mangrove Biome • Animal Species -Billions of worms, protozoa, barnacles, oysters, (and other invertebrates), which in turn feed fish and shrimp, which support wading birds, pelicans, and the endangered Crocodile. • Plant Species -halophytic (salt loving) trees, shrubs and other plants growing in brackish to saline tidal waters -Mangrove trees dominate this wetland ecosystem due to their ability to survive in both salt and fresh water
Mangrove Biome • These swamps often found in estuaries, where fresh water meets salt water • Human impacts on mangroves have been severe in some places, and include dredging, filling, diking, oil spills, and runoff of human waste and herbicides. Some coastal development results in total loss of habitat
Oceans - Major bodies of saline water and a principal component of the hydrosphere, and approximately 71% of the Earth's surface is covered by oceans. 5 oceans – Pacific, Atlantic, Indian, Southern, Arctic • Climate • Average temperature of all oceans is about 39 degrees F • Parts of ocean near equator are warmer, whereas those closer to far north and far south are colder
Ocean Biome • Animals: • Radiata • Fish • Cetacea such as whales, dolphins, and porpoises • Cephalopods such as octopus and squid • Crustaceans such as lobsters, clams, shrimp and krill • Marine worms • Plankton • Echinoderms such as starfish and sea cucumbers
Ocean Biome • Plant Species • Seaweed, seagrass, kelp, algae • Human Impact • Oil Spills, overfishing, ballast water, invasive species, etc.
Estuaries Biome • Animals: Fish and bottom dwellers than can tolerate a wide range of salinity, birds, crocodiles, crabs, snakes, and many different insects. • Human impact: very important place for human civilizations since perfect place for commerce and shipping. Also very important for fishing communities. • Estuaries are bodies of water formed where freshwater from rivers or streams connect with salt ocean water. The mixed water is called brackish, and the salinity may fluctuate dramatically for example depending on freshwater input from rains and waves and tides influences from the ocean. Estuary areas include river mouths, bays, lagoons and salt marshes.
Coastal Biome • Coastal Oceans are waters that lie above the continental shelf. This is where most of fish come from, where the coral reefs grow and we we swim and play. • In fact, while the oceans cover 71% of Earth, only 7% of that makes up the coastal oceans. This small strip of land is affected adversely by humans in many ways including: over-fishing, industrial pollution, and agricultural runoff. • These practices may in turn affect us as fish availability varies, algal blooms occasionally occur, and water quality fluctuates through time.
Coastal Biome • Overall, coastal oceans can be generalized more easily by dividing them up into temperate and tropical coastal areas. • In tropical coastlines there is a habitat for coral reefs, which have much more biodiversity. • This zone is also one of the most important for humans. While they cover only a very small percentage of total ocean body, they harbor most of the seafood caught for human consumption. • Fish species worldwide: 28,000 • Cnidarians (seapens/Jellyfish/corals) worldwide: 11,000 • Crustaceans worldwide: 52,000
Coral Reef Biome • Water temperature: Require warm ocean temperatures which is 68 to 82 F, or in 20 to 28 C. Warm water flows along the eastern shores of major land masses. • Animal species: Corals are colonies of made up of tiny animals called polyps. Some examples: Sponges, nudibranchs, fish, jellyfish, anemones, sea stars, crustaceans (like crabs, shrimp, and lobsters), turtles, sea snakes, snails, and mollusks (like octopuses, nautilus, and clams)
Coral Reef Biome • Plant species: Mainly algae and seagrasses. These 2 are the most important element in the entire reef ecosystem. The algae can range in various sizes. They can be simple plants such as the seaweeds • Salinity: The best salinity is between 34 and 37 parts per 1000. The appropriate temperatures and salinities are most often found in the tropics. • Wind/tides: Winds and currents are really important in shaping individual reefs and in determining the orientation and shape of the coral reef.
Coral Reef Biome • They commonly form on the more protected leeward end of the reef. Wind action at low tide on these deposits may build above the high water mark • Human impact: Have become threatened by human activities throughout the world. In southeast Asia, the hot spot of coral diversity, more than 80% of the reefs are at risk from coastal development and harmful fishing practices
Coastal Marshes Biome • Water temperature: As runoff flows across paved roads and parking lots into coastal marshes, water temperature rises. More often happens in small tidal creeks. Because these areas are often naturally low in dissolved oxygen, further increases in temperature can push oxygen levels toward zero, (mostly in the summer.) • Animal species: In the marshes, if oil gets in it can affect many animals. It can kill the tiny planktonic larvae and eggs of adult fish, shrimp, jellyfish, squid, and numerous other species.
Coastal Marshes Biome • Plant species: They may vary geographically, however the basic physical conditions that define the ecosystems share similar characteristics across the region. In general, they are defined by periodic tidal inundation, dominance of salt-tolerant herbaceous plants and a rate of net primary production that is among the highest of all the world’s ecosystems. • Salinity: Salinity varies widely, from 1 to over 50 ppt in salt marshes. Net primary production (above-ground plant material) may also be highly variable. Although production has been estimated in only a few Florida salt marshes, the range spans from 130 to 2500 grams dry mass per square meter per year
Coastal Marshes Biome • Wind/tides: Marshes are susceptible to wind-driven waves. Worsening the saltwater intrusion is coastal subsidence, a natural compaction or sinking of marsh sediments, which further stresses marsh vegetation by increasing the duration of flooding. • The wind constantly creates waves that keep the open water turbid and unproductive. The result is a coastal region that is eroding at an alarming rate.
Coastal Marshes Biome • Human impact: Coastlines of marshes are highly vulnerable to human impacts from daily activities that put pressure on these surrounding natural environments. Marshes were once known as coastal ‘wastelands,’ when they were causing considerable loss and change of these ecosystems through land reclamation for agriculture, urban development, salt production and recreation. Ultimately there are the indirect effects of human activities such as nitrogen loading also play a major role in the coastal marsh areas.
