<descriptor thcode="62"><thesaurus thcode="62" name="Coastal and Marine Ecological Classification Standard" scope="Categories of ecosystems for coastal, estuarine, and marine environments." creator="FGDC" rights="public domain" date="2017-05-10" codetype="alpha" prefix="cmecs" uri="https://www2.usgs.gov/science/CMECS" tblname="cmecs" root_code="root" contact="pschweitzer"><category><term thcode="25" code="16" name="hierarchical" parent="11" scope="Substantive broader-narrower relationships exist among the terms."/><term thcode="25" code="16" name="hierarchical" parent="11" scope="Substantive broader-narrower relationships exist among the terms."/></category><altlabel><altlabel>CMECS</altlabel><altlabel>CMECS</altlabel><altlabel>Coastal and Marine Ecological Classification Standard (CMECS)</altlabel><altlabel>Coastal and Marine Ecological Classification Standard (CMECS)</altlabel></altlabel></thesaurus><term thcode="62" code="SC-362" name="Anthropogenic Substrate" parent="SC-C003" scope="Substrate Origin: Substrates where percent cover of Anthropogenic Substrate exceeds percent cover of both Geologic Substrate and Biogenic Substrates, considered separately. ..."/><bt><term thcode="62" code="SC-C003" name="Substrate" parent="root"/><term thcode="62" code="root" name="CMECS" scope="Coastal and Marine Ecological Classification Standard: Category terms encompassing waters from the head of tide or inland incursion of ocean salinity to the splash zone of the coasts to the deepest portions of the oceans and the deep waters of the Great Lakes."/></bt><nt><term thcode="62" code="SC-363" name="Anthropogenic Rock" parent="SC-362" scope="Substrate Class: Anthropogenic Substrate that is primarily composed of natural mineral materials that were purposefully or accidentally deposited by humans. ..."/><term thcode="62" code="SC-364" name="Anthropogenic Wood" parent="SC-362" scope="Substrate Class: Anthropogenic Substrate that is primarily composed of woody materials that were processed or assembled by humans. Shape for this substrate class is covered in the GC (e.g., Jetty, Dolphin, Pilings, and Wreck)."/><term thcode="62" code="SC-365" name="Construction Materials" parent="SC-362" scope="Substrate Class: Anthropogenic Substrate that is composed of any single construction material or combination of construction materials (concrete, brick, rebar, pipe, porcelain, fiberglass, rubber, plastic, &lt; 50% wood, &lt; 50% metal, etc.) that were manufactured by humans. ..."/><term thcode="62" code="SC-366" name="Metal" parent="SC-362" scope="Substrate Class: Anthropogenic Substrate that is dominantly composed of metal that was manufactured by humans. Shape for this substrate class is covered in the GC (e.g., Cable Area, Wreck [if metal])."/><term thcode="62" code="SC-367" name="Trash" parent="SC-362" scope="Substrate Class: Anthropogenic Substrate that is usually composed primarily of plastics but may include other trash materials (waxed paper, paper, &lt; 50% metal, rubber, glass, cardboard, tires) that were manufactured by humans."/></nt></descriptor>