Benthic Invertebrate And Soil Characteristics Of Created And Natural Marshes In South Louisiana
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Benthic Invertebrate And Soil Characteristics Of Created And Natural Marshes In South Louisiana

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Details:

  • Personal Author:
  • Corporate Authors:
    Louisiana Sea Grant College Program
  • NOAA Program & Office:
  • Sea Grant Program:
    LSU (Louisiana Sea Grant)
  • Description:
    Louisiana’s coastal wetlands have been left susceptible to natural and human-induced changes to the environment. To combat wetland loss, marshes are being created yet little is known about how soil and invertebrate communities respond to marsh creation sites. Soils provide the base for many of the biological and chemical processes that make wetlands vital ecosystems. Open water and decomposition of emergent vegetation with subsequent buildup of organic matter permits marshes to vertically accrete, allowing them to keep up with subsidence and rising sea levels. Invertebrates also play a crucial role via nutrient cycling and litter processing while also being the base trophic level for fish and birds that utilize wetlands. Both soil and invertebrates provide wetlands with the necessary tools to support a healthy ecosystem. This study analyzes the soil composition and invertebrate communities across three created marshes completed in 2010, 2016, and 2020 respectively, and two adjacent natural marshes (n=5) near Lafitte, Louisiana. Soil samples were collected at two random sites per marsh (n=10) and analyzed for bulk density, organic matter content, and nutrient composition. Soil invertebrates were also sampled at the same two sites per marsh (n=10) and separated by order. This study will provide insights into the differences between soil and invertebrate communities at created and natural marshes to inform management to ensure they are functioning as healthy ecosystems. Additionally, analysis of the age of created marshes will provide insights into the time needed for restoration to gain ecosystem services provided by natural coastal wetlands.
  • Keywords:
  • Format:
    PDF
  • Document Type:
    Non-series Report
  • Place as Subject:
    Louisiana
  • License:
  • Rights Information:
    CC0 Public Domain
  • Compliance:
    Submitted
  • Main Document Checksum:
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