How do tide-dominated systems influence coastal biodiversity?
Tide-dominated systems, with their dynamic and nutrient-rich environments, create diverse habitats such as mudflats, salt marshes, and mangroves, which support varied flora and fauna. The regular tidal influxes facilitate nutrient mixing and sediment transport, promoting high biodiversity by sustaining both resident and migratory species.
What are the key features of tide-dominated systems?
Tide-dominated systems feature strong tidal currents, large tidal ranges, and significant sediment transport. They often have extensive intertidal zones, tidal flats, and salt marshes. Channels and tidal creeks are typically well-developed, and sediment deposition varies with tidal dynamics, often creating complex morphological patterns.
How do human activities impact tide-dominated systems?
Human activities impact tide-dominated systems by altering natural tidal patterns through coastal development, land reclamation, and infrastructure construction. Pollution from agricultural runoff, industrial waste, and sewage can degrade water quality, harming marine life. Additionally, climate change-induced sea level rise can exacerbate these impacts, threatening ecosystem stability and biodiversity.
How do tide-dominated systems regulate sediment transport and deposition?
Tide-dominated systems regulate sediment transport and deposition through tidal currents that redistribute sediments along coasts and estuaries. Flood and ebb tides transport sediments both landward and seaward, creating features like tidal flats and channels. This dynamic exchange influences sedimentation patterns and the formation of depositional environments such as deltas and tidal wetlands.
What role do tide-dominated systems play in coastal erosion and protection?
Tide-dominated systems help control coastal erosion by redistributing sediments that can form natural barriers like spits, bars, and tidal flats. These features dissipate wave energy, providing natural protection to coastlines. Additionally, they support the growth of coastal vegetation such as mangroves and salt marshes, which further stabilize shorelines.