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Transcript of Estuary Biome
Detritus Mud Crab Snapper Fish Snooks The air and water temperatures dictate which animals can survive in an estuary biome. If temperatures become too extreme, they can threaten estuary inhabitants' homeostasis and even cause them to die. Warmer weather often coincides with increased sunlight, which is vital to the many plant species found in estuaries. Biotic Factors Bacteria Algae Mangrove Humans Migratory Birds The various species of algae are the main producers of the estuary. Almost every species depends, either directly or indirectly, on the sustainability of algae so that they can consume the necessary amount of food. However, a large increase in the algal population or an algal bloom, causes an increase in the detritus that bacteria consume, spawning a dramatic increase in the bacteria population. Certain species of bacteria found in estuaries require a high amount of oxygen, which they obtain from the dissolved oxygen in the water. If these species become too abundant, they will use too large a portion of the dissolved oxygen in the water, causing other species to die out. Various species of fish lay their eggs in the mangrove tree and a few even live amongst its roots. Mangrove trees also trap soil in their roots, allowing other plants to live in areas covered with low levels of water. Estuaries are popular places for people to build homes. However, the expansion of real estate causes competition for space within estuaries. This has caused the population many species that inhabit estuaries to dwindle. Many migratory birds stop at estuaries along their migration paths. They eat fish, crabs, worms and other invertebrates during their stay, which helps reduce direct competition in the estuary by controlling these populations.