20171130 1.2 vector digital data This product was created by the Pacific Marine and Estuarine Fish Habitat Partnership, and is part of a spatial data system for estuarine and nearshore environments for the West Coast of the contiguous United States. For more information, email gis@psmfc.org Vers. 1.0.1: Fixed spelling errors in 2 estuaries (Tulalip Bay and Elwha River). Vers. 1.1 (11/29/2018): - Fixed areas where the National Wetlands Inventory was not fully crosswalked into CMECS before using C-CAP. - Updated input habitat data from the National Wetlands Inventory and 2016 C-CAP data from Washington. - For estuaries mapped by PMEP (Data Source = PMEP or PMEP/PC Trask), a hierarchy of NWI biotic classes was implemented to determine which NWI class was utilized when crosswalking to CMECS Biotic Component, in the case of dual biotic classes (e.g. E2EM/SSP). The hierarchy is: FO (forested) > SS (scrub-shrub) > EM (emergent)/AB (aquatic bed). - Added Brackish Tidal Forest/Woodland classification (2.8.1.1) Vers. 1.2 (10/30/2019): - Updated input data from Oregon Coastal Management Program from their CMECS Phase II effort, including Benthic / Attached Biota, Faunal Bed, Seagrass Bed, and Eelgrass bed classes. - Added local and regional data for Seagrass Bed (Biotic Group) and Eelgrass (Biotic Community) from PMEP's dataset "PMEP_WestCoast_USA_Eelgrass_Extent." These data represent the Biotic Component (BC) of the Coastal and Marine Ecological Classification Standard(CMECS) for estuaries of the West Coast of the contiguous United States. The BC is organized into a branched hierarchy of five nested levels: biotic setting, biotic class, biotic subclass, biotic group, and biotic community. Classes and subclasses of the BC are determined by the dominant biotia (defined as the most abundant in terms of percent cover) of the substrate.Following the methods developed by the Oregon Coastal Management Program (OCMP) – Oregon Department of Land Conservation and Development (https://www.coastalatlas.net/documents/cmecs/PhaseI/EPSM_CoreGISMethods.pdf), we cross-walked attributes from the National Wetlands Inventory (NWI) and NOAA’s Coastal Change Analysis Program (C-CAP) into select classifications at various levels of the Biotic Component. These classifications were applied to estuaries currently part of the Pacific Estuarine and Marine Fish Habitat Partnership’s (PMEP) inventory (n=444), within the “West Coast USA Current and Historical Estuary Extent” (PMEP) layer. Data for the majority of estuaries in Oregon come directly from the Oregon Coastal Management Program’s (Oregon Department of Land Conservation) mapping effort. Specifically, we classified the estuary extent into the following Biotic Component units (levels):Benthic / Attached Biota (Biotic Setting)Aquatic Vegetation Bed (Biotic Class)Benthic Macroalgae (Biotic Subclass)Aquatic Vascular Vegetation (Biotic Subclass)Seagrass Bed (Biotic Group)Eelgrass (Biotic Community)Faunal Bed (Biotic Class)Emergent Wetland (Biotic Class)Emergent Tidal Marsh (Biotic Subclass)Brackish Emergent Tidal Marsh (Biotic Group)Scrub-Shrub Wetland (Biotic Class)Tidal Scrub-Shrub Wetland (Biotic Subclass)Brackish Tidal Scrub-Shrub Wetland (Biotic Group)Forested Wetland (Biotic Class)Tidal Forest/Woodland (Biotic Subclass)Brackish Tidal Forest/Woodland (Biotic Group)Unclassified (N/A)For full documentation of CMECS, see https://coast.noaa.gov/data/digitalcoast/pdf/cmecs.pdf.Vers. 1.2, Updated 10/30/2019 Data clipped to the state of California with a 5 mile buffer by CDFW staff. ------------------------------------------------------------------------------------------------ These data represent the Biotic Component (BC) of the Coastal and Marine Ecological Classification Standard (CMECS) for estuaries of the West Coast of the contiguous United States. Complete As needed -124.89 -115.81 48.96 32.53 Oregon Metadata Keyword Thesaurus - Bioscience aquatic habitat, existing vegetation, marsh, wetlands Oregon Metadata Keyword Thesaurus – Geoscience bay, coast, coastal basin, coastal environment, coastal plain, coastline, environment, estuary, floodplain, harbor, lagoon, lowland, natural resource, ocean, port, river, river delta, stream, stream delta, surface water, tide, tide flat, vegetation, water Oregon Metadata Keyword Thesaurus – Hydrography bay, estuaries, high tide, inundation, marsh, slough, stream, streams, surface water, tide, wetland Oregon Metadata Keyword Thesaurus – Land Cover / Land Use estuary, marsh, swamp, tidal ISO 19115 Topic Categories biota elevation environment inlandWaters oceans None North America, United States of America, West Coast, Pacific Ocean, Washington, Oregon, California Oregon Metadata Keyword Thesaurus – Stratum Biosphere > Aquatic > estuarine, estuarine, land surface, surface Oregon Metadata Keyword Thesaurus – Temporal modern, recent None This product is for informational purposes only and is not intended for navigational, legal, engineering, or surveying purposes; it is provided with the understanding that conclusions drawn from the information are the responsibility of the user.Disclaimer: The State makes no claims, promises, or guarantees about the accuracy, completeness, reliability, or adequacy of these data and expressly disclaims liability for errors and omissions in these data. No warranty of any kind, implied, expressed, or statutory, including but not limited to the warranties of non-infringement of third party rights, title, merchantability, fitness for a particular purpose, and freedom from computer virus, is given with respect to these data. Pacific States Marine Fisheries Commission PSMFC GIS GIS staff mailing and physical

205 SE Spokane St., Suite 100

Portland OR 97202 US 503-595-3100 gis@psmfc.org Pacific States Marine Fisheries Commission PSMFC GIS GIS mailing and physical 205 SE Spokane St., Suite 100 Oregon 97202 503-595-3100 gis@psmfc.org Pacific Marine and Estuarine Fish Habitat Partnership, Pacific States Marine Fisheries Commission, Oregon Coastal Management Program, PC Trask Version 6.2 (Build 9200) ; Esri ArcGIS Pro 2.1 20120601 June 2012 https://coast.noaa.gov/data/digitalcoast/pdf/cmecs.pdf 20171002 1.0 https://www.ngs.noaa.gov/CUSP/ hardDisk PMEP Estuary Extent Sources Description of West Coast USA Current and Historical Estuary Extent: Accurate mapping of tidal wetlands is vital for effective conservation and restoration of these valued habitats, and good mapping is key to strategic planning for coastal resilience. Tidal wetlands are defined by regular inundation by the tides; therefore, mapping of tidal wetlands should be based on knowledge of tidal water levels and the land areas inundated by the tides. We developed this tidal wetland mapping following that principle. Briefly, we used a method developed in Oregon that combines NOAA's extreme water level models (https://tidesandcurrents.noaa.gov/est/) with high-resolution LIDAR digital elevation models (DEMs) to map areas subject to tidal inundation. We refined the mapping using additional data sources such as the National Wetland Inventory, local knowledge, and aerial photo interpretation. Detailed information on the Oregon methods can be found here: http://www.coastalatlas.net/documents/cmecs/EPSM_CoreGISMethods.pdf Our mapping includes areas currently inundated by the tides -- "current tidal wetlands" -- from ocean to head of tide, including the freshwater tidal zone. To assist restoration planning, our mapping also includes "historical tidal wetlands" -- areas that were historically inundated by the tides, but are no longer inundated by the tides due to human alterations to the landscape such as dikes and tide gates. Although the mapping does not yet distinguish current from historical (disconnected) tidal wetlands, a future mapping phase (currently in the data development phase) will provide that information. Description of Estuary Extent Sources: Each source geospatial layer that contributes to the “PMEP Estuary Extent” dataset is stored in a companion dataset, called “Estuary Extent Sources”. This layer began with the “50% Annual Exceedance” layer, as was appended to by a number of other data sources in order to create the final estuary extent layer (“West Coast USA Current and Historical Estuary Extent”). See metadata associated with this layer for more details. 20180501 Version 2 - Surface Waters and Wetlands https://www.fws.gov/wetlands/data/State-Downloads.html 24000 onLine 19800101 20171101 State data for the Washington, Oregon, and California were downloaded on 6/26/2018 from the U.S. Fish and Wildlife Service website @ https://www.fws.gov/wetlands/data/State-Downloads.html, and were then merged into one seamless dataset, after removing duplicate features along the boundaries of the states. National Wetlands Inventory (USFWS) This data set represents the extent, approximate location and type of wetlands and deepwater habitats in the conterminous United States. These data delineate the areal extent of wetlands and surface waters as defined by Cowardin et al. (1979). Certain wetland habitats are excluded from the National mapping program because of the limitations of aerial imagery as the primary data source used to detect wetlands. These habitats include seagrasses or submerged aquatic vegetation that are found in the intertidal and subtidal zones of estuaries and near shore coastal waters. Some deepwater reef communities (coral or tuberficid worm reefs) have also been excluded from the inventory. These habitats, because of their depth, go undetected by aerial imagery. By policy, the Service also excludes certain types of "farmed wetlands" as may be defined by the Food Security Act or that do not coincide with the Cowardin et al. definition. Contact the Service's Regional Wetland Coordinator for additional information on what types of farmed wetlands are included on wetland maps. 2010/2011 (OR and CA), 2016 (WA) https://coast.noaa.gov/ccapatlas/ onLine 20090622 20160830 Data were downloaded for California, Oregon and Washington states on March 14, 2016. Theses data were then merged into a seamless coast-wide dataset, after removing any overlapping and/or duplicate rasters. The data were then converted to polygons. The following datasets were utilized in this process: [dataset name (publication date)] WA_2016_ccap_land_cover (8/30/2016) OR_2010_CCAP_LAND_COVER (11/19/2013) CA_2010_CCAP_LAND_COVER (11/19/2013) C-CAP Regional Land Cover Nationally standardized, raster-based inventories of land cover for the coastal areas of the U.S. Data are derived, through the Coastal Change Analysis Program (C-CAP), from the analysis of multiple dates of remotely sensed imagery. The use of standardized data and procedures assures consistency through time and across geographies. C-CAP data forms the coastal expression of the National Land Cover Database (NLCD) and the A-16 land cover theme of the National Spatial Data Infrastructure. The data are updated every 5 years. 20140501 V0.4 http://www.coastalatlas.net/index.php/search?kw=cmecs&src=Originator&scl=Scale&option=com_jumi&view=application&fileid=5 50000 None 20000101 20121231 These data cover all major estuaries in Oregon. CMECS Estuarine Biotic Component v0.4.1, OCMP, 2014 This layer is a polygon file containing CMECS Biotic Component classes for Oregon Estuaries. The CMECS Biotic Component is a hierarchical classification that identifies (a) the composition of floating and suspended biota and (b) the biological composition of coastal and marine benthos. None PMEP Estuary Extent Selector (unpublished) The link between the estuary extent polygon layer, which is dissolved from various source inputs, and the estuary point layer, requires a companion layer to select these polygons and associate them with the point layer and estuary ID. The “Estuary Extent Selector” polygon layer was created to establish and maintain this link. This layer also establishes which estuary areas are considered part of a specific estuary, and which are considered as part of other, “unassociated” extents. This layer is utilized in the publishing of the estuary extent layer. Source geometry for this layer between contiguous estuaries is from the PMEP Estuary Split Lines layer. The other areas of geometry are based on general areas of contiguous or larger estuary extent polygons, and are used to identify and code estuary extent areas within the polygons. In some cases, this geometry has been modified to include or exclude estuary extent areas from association with a particular estuary system, based on expert review. 20181001 50000 None CMECS Estuarine Biotic Component, v.0.6, OCMP, 2018 This layer is a polygon file containing CMECS Biotic Component classes for Oregon Estuaries. The CMECS Biotic Component is a hierarchical classification that identifies (a) the composition of floating and suspended biota and (b) the biological composition of coastal and marine benthos. 20180330 1.0 This product accompanies a report, published in 2018 by the Pacific Marine and Estuarine Fish Habitat Partnership (PMEP). Report is available for download at www.pacificfishhabitat.org/assessment-reports/. This product was created by the Pacific Marine and Estuarine Fish Habitat Partnership, and is part of a spatial data system for estuarine and nearshore environments for the West Coast of the contiguous United States. For more information, email gis@psmfc.org http://www.pacificfishhabitat.org/data/west-coast-usa-eelgrass-habitat/ onLine West Coast USA Eelgrass (Zostera sp.) Maximum Observed Extent This layer represents the presence and maximum observed extent of eelgrass (Zostera sp.) habitat on the West Coast of the United States (Washington, Oregon, and California), based on the best available existing spatial data showing the current and historic extent of eelgrass in the region. v 0.6 None CMECS Estuarine Biotic Component, v.0.6, OCMP, 2018 This layer is a polygon file containing CMECS Biotic Component classes for Oregon Estuaries. The CMECS Biotic Component is a hierarchical classification that identifies (a) the composition of floating and suspended biota and (b) the biological composition of coastal and marine benthos. Data set covers Oregon estuary habitats in systems south of the Columbia River, and is assembled from sources spanning the dates 1978-2016. Data from the National Wetlands Inventory (NWI) for Washington, Oregon and California were obtained from the Wetlands Mapper (https://www.fws.gov/wetlands/data/mapper.html). Overlapping polygons were removed from the datasets and they were merged into a coast-wide layer. Within this layer, 663 unique wetlands “Attributes” were present which overlapped PMEP's Estuary Extent layer. In order to make queries against this layer more efficient, the NWI “ATTRIBUTE” codes were parsed into their individual components (System, Subsystem, Class, Subclass, and Modifiers). When more than one vegetated NWI “CLASS” was present (e.g. PEM1/FO1R), a hierarchy of classes was utilized to crosswalk into CMECS. The crosswalk is: FO (forested) > SS (scrub-shrub) > EM (emergent)/AB (aquatic bed). These parsed NWI fields were used for all subsequent queries during the crosswalking to CMECS. 20180628 Pacific States Marine Fisheries Commission PSMFC GIS GIS gis@psmfc.org The process to transform the PMEP Estuary Extent Source layer, the National Wetlands Inventory layer, and the Coastal Change Analysis Program layer into the CMECS Biotic Component layer involves a number of geoprocessing tasks, all of which are accomplished using the ModelBuilder tool in ArcGIS Pro (v2.1). This visual programing language for building GIS workflows allows for numerous geoprocessing steps to be automated, allowing for repeated use and providing documentation for the process. Please e-mail gis@psmfc.org for full processing details. The following steps are required for deriving the CEMCS BC layer from the source data inputs. Model Group 1 – Exceedance Type Processing This series of steps separates the PMEP Estuary Extent layer into 2 groups, one which represents 50% Exceedance areas, and one which represents the other areas within the mapped estuary extent. These areas are then dissolved into these two groupings. These classes provide distinctions amongst CMECS BC classifications during processing. Model Group 2 – NWI Processing This series of steps uses the dissolved grouping from Model Group 1 (50% exceedance, not 50% exceedance) to overlay National Wetlands Inventory data. The result is then interrogated, using a series of queries, and then attributed into CMECS Biotic Component classes, following the methods developed by the Oregon Coastal Management Program (OCMP). Model Group 3 – C-CAP Processing After all available National Wetlands Inventory classes were attributed into CMECS BC, the Coastal Change Analysis Program (C-CAP) data were utilized to fill in areas outside of the NWI, following the methods developed by the Oregon Coastal Management Program (OCMP). A simple cross-walk was used to classify C-CAP into CMECS BC classifications: CCAP Class (gridcode) > CMECS BC Cultivated (6) > Emergent Wetland Pasture/Hay (7) > Emergent Wetland Grassland (8) > Emergent Wetland Deciduous Forest (9) > Forested Wetland Evergreen Forest (10) > Forested Wetland Mixed Forest (11) > Forested Wetland Scrub/Shrub (12) > Scrub-Shrub Wetland Palustrine Forested Wetland (13) > Forested Wetland Palustrine Scrub/Shrub Wetland (14) > Scrub-Shrub Wetland Palustrine Emergent Wetland (15) > Emergent Wetland Estuarine Forested Wetland (16) > Forested Wetland Estuarine Scrub/Shrub Wetland (17) > Scrub-Shrub Wetland Estuarine Emergent Wetland (18) > Emergent Wetland Estuarine Aquatic Bed (23) > Estuarine Aquatic Bed All C-CAP polygons besides the Estuarine Aquatic Bed classes (“gridcode” = 23) were appended to the CMECS BC layer as-is, based on methods developed by OCMP. Following the methods developed by OCMP, C-CAP "Estuarine Aquatic Bed" classes were mapped as "Estuarine Aquatic Bed" within previously “Unclassified” areas from the NWI/CMECS BC attribution, after being aggregated and smoothed. No other classification besides "Unclassified" was overridden by the C-CAP "Estuarine Aquatic Bed" class, nor did any other C-CAP classes override "Unclassified". 20180628 Pacific States Marine Fisheries Commission PSMFC GIS GIS mailing and physical 205 SE Spokane St., Suite 100 Oregon 97202 503-595-3100 gis@psmfc.org In order to incorporate PMEP's eelgrass dataset (PMEP_WestCoast_USA_Eelgrass_Extent) and OCMP's updated Biotic Component dataset (v 0.6, October 2018) into PMEP's Biotic Component dataset (PMEP_Estuarine_Biotic_Habitat_Vers1_1), geoprocessing steps were conducted to compine these two layers and crosswalk them into PMEP's Biotic Component data standard. The first step identified all features in PMEP's eelgrass dataset that were sources from raster data and smooth them. Features from this dataset represent maximum possible extent of eelgrass (all known years for eelgrass data), for all estuaries except Morro Bay. In Morro Bay, only the most current year of data (2015) was used at request of the data provider, since there is known signficant habitat loss of eelgrass in this estuary, and current extent is the best way to represent eelgrass in this location. The next step step crosswalked all features from PMEP's eelgrass dataset into PMEP's Biotic Component dataset. Since OCMP's dataset is considered the best availablle data, and included additional features beyond data included in the eelgrass dataset (macroalgae, faunal bed, brackish marsh), all eelgrass data in PMEP's dataset for Oregon was erased and updated with all features from OCMP's biotic component dataset. These new features were crosswalked into PMEP's Biotic Component data stardard to create a new feature class to be used to update PMEP's Biotic Component dataset (West_Coast_USA_Estuarine_Biotic_Habitat_Eelgrass_FinalDraft). 20190930 In order to incorporate the eelgrass dataset and the additional biotic component categories from OCMP, a series of geoprocessing steps was combined into a ModelBuilder (Esri) model. Inputs to the model are "West Coast USA Biotic Habitat" version 1.1, and "West_Coast_USA_Estuarine_Biotic_Habitat_Eelgrass_FinalDraft". The first step is to create an area within which eelgrass data can be overlaid upon. These areas are unclassified areas (CMECS_BC_Code = '9.9.9.9.9'), aquatic vegetation bed areas (CMECS_BC_Code = '2.5'), benthic macroalgae areas (CMECS_BC_Code = '2.5.1'), and aquatic vascular vegetation areas (CMECS_BC_Code = '2.5.2'), and not within any areas mapped by OCMP. This layer is used to clip the input eelgrass input data. The clipped eelgrass data are then merged with the other existing habitat types. The resulting layer is then used to erase the data from the first step (unclassified, aquatic vegetation bend, benthic macroalgae, and aquatic vascular vegetation, all non-OCMP sourced), before it is appended to the main layer. The OCMP data are finally appended to the main dataset to create the final layer. 20191010 Vector GT-polygon composed of chains 221788 NAD 1983 California Teale Albers 34.0 40.5 -120.0 0.0 0.0 -4000000.0 coordinate pair 0.0001 0.0001 meter D North American 1983 GRS 1980 6378137.0 298.257222101 West Coast USA Estuarine Biotic Habitat This layer represents the current and historical tidal wetlands, or estuary extent, for the West Coast of the contiguous United States. Note that estuaries were included based on their current or future potential to provide habitat for fish species. PMEP OBJECTID Internal feature number. Esri Sequential unique whole numbers that are automatically generated. Shape Feature geometry. Esri Coordinates defining the features. PMEP_EstuaryID unique identifier for each estuary included in PMEP estuary inventory PMEP 1000 - 1999 ID range for ‘Salish Sea’ PMEP Region estuaries. These IDs were originally assigned PMEP 2000 - 2999 ID range for ‘Washington, Oregon, Northern California Coast’ PMEP Region estuaries. PMEP 3000 - 3999 ID range for ‘Central California’ PMEP Region estuaries. These IDs were originally PMEP 4000 - 4999 ID range for ‘Southern California Bight’ PMEP Region estuaries. These IDs were PMEP Estuary_Name The name of the estuary. Values in this field were generally obtained from the names in the “An Inventory and Classification of U.S. West Coast Estuaries” (Heady, et. al, 2014), although there are exceptions. Estuaries added to the PMEP estuary list utilized official or commonly used estuary names, the name of the major river or creek connecting with the estuary, or used local landmarks in the absence of another name source. PMEP These data are based on geographic names. Shape_Length Length of feature in internal units. Esri Positive real numbers that are automatically generated. CMECS_BC_Code The code for the Biotic Component unit. CMECS 2 Benthic/Attached Biota CMECS 2.2 Faunal Bed CMECS 2.5 Aquatic Vegetation Bed CMECS 2.5.1 Benthic Macroalgae CMECS 2.5.2 Aquatic Vascular Vegetation CMECS 2.5.2.1 Seagrass Bed PMEP 2.5.2.1.18 Eelgrass PMEP 2.6 Emergent Wetland CMECS 2.6.1 Emergent Tidal Marsh CMECS 2.6.1.1 Brackish Emergent Tidal Marsh CMECS 2.7 Scrub-Shrub Wetland CMECS 2.7.1 Tidal Scrub-Shrub Wetland CMECS 2.7.1.1 Brackish Tidal Scrub-Shrub Wetland CMECS 2.8 Forested Wetland CMECS 2.8.1 Tidal Forest/Woodland CMECS 2.8.1.1 Brackish Tidal Forest/Woodland CMECS 9.9.9.9.9 Unclassified CMECS CMECS_BC_Name The name of the Biotic Component unit. CMECS CMECS Version 4.0 https://www.fgdc.gov/standards/projects/cmecs-folder/CMECS_Version_06-2012_FINAL.pdf Benthic/Attached Biota [Biotic Setting] This biotic setting describes areas where biota lives on, in, or in close association with the seafloor or other substrates (e.g., pilings, buoys), extending down into the sediment to include the sub-surface layers of substrate that contain multi-cellular life. As a rule, Benthic/Attached Biota units are characterized by the various life histories and taxonomic characteristics of the dominant life forms. CMECS Faunal Bed Seabeds dominated or characterized by a cover of animals that are closely associated with the bottom, including attached, clinging, sessile, infaunal, burrowing, laying, interstitial, and slow-moving animals, but not animals that have created substrate (Reef Biota). Unlike Reef Biota, Faunal Bed biota cannot (or are not sufficiently abundant to) construct identifiable substrate. "Slow-moving" animals included in the Faunal Bed class are defined as being incapable of moving outside the boundaries of the classification unit within one day. Faunal Bed organisms are aquatic, but they may be able to withstand periods of exposure to air. CMECS Aquatic Vegetation Bed [Biotic Class] This class includes subtidal or intertidal bottoms and any other areas characterized by a dominant cover of rooted vascular plants, attached macroalgae, or mosses, which are usually submersed in the water column or floating on the surface. They may be exposed during low tides. Non-rooted floating vegetation and free floating macroalgae are included with the Planktonic Biota Biotic Setting under the Floating/Suspended Plants and Macroalgae Subclass. CMECS Benthic Macroalgae [Biotic Subclass] Aquatic beds dominated by macroalgae attached to the substrate, such as kelp, intertidal fucoids, and calcareous algae. Macroalgal communities can exist at all depths within the photic zone, on diverse substrates, and across a range of energy and water chemistry regimes. In the CMECS framework, macroalgae that dominate the benthic environment and form a vegetated cover fall within this subclass. Macroalgal communities (typically coralline/crustose algae) that build substrate in a reef setting are categorized in the BC Reef Biota Class instead. CMECS Aquatic Vascular Vegetation [Biotic Subclass] Aquatic vascular vegetation beds dominated by submerged, rooted, vascular species (such as seagrasses) or submerged or rooted floating freshwater tidal vascular vegetation (such as hornworts [Ceratophyllum spp.] or naiads [Najas spp.]). CMECS Seagrass Bed [Biotic Group] Tidal aquatic vegetation beds dominated by any number of seagrass or eelgrass species, including Cymocedea sp., Halodule sp., Thalassia sp., Halophilla sp., Vallisnera sp., Ruppia sp., Phyllospadix sp., and Zostera sp. Seagrass beds may occur in true marine salinities, and they may extend into the lower salinity zones of estuaries. CMECS Eelgrass [Biotic Community] Eelgrass, Zostera spp., is a marine flowering plant that is found in temperature zones in soft-bottom habitats in estuaries and coastal environments worldwide. Eelgrass is the most common seagrass taxon along the U.S. West Coast and occurs from Alaska to Baja California. PMEP Emergent Wetland [Biotic Class] Areas in this class are characterized by erect, rooted, herbaceous hydrophytes—excluding emergent mosses and lichens. This vegetation is present for most of the growing season in most years. These wetlands are usually dominated by perennial plants. CMECS Emergent Tidal Marsh [Biotic Group] Marshes dominated by species with a wide range of salinity tolerance. Depending on the salinity levels (0.5-30), more or less salt-intolerant species may be present. CMECS Brackish Emergent Tidal Marsh [Biotic Group] Marshes dominated by species with a wide range of salinity tolerance. Depending on the salinity levels (0.5-30), more or less salt-intolerant species may be present. CMECS Scrub-Shrub Wetland [Biotic Class] Emergent wetland areas dominated by woody vegetation that is generally less than 6 meters tall. Characteristic species include true shrubs, young trees, and trees or shrubs that are small or stunted due to environmental conditions. Scrub-Shrub Wetland includes the shrub-dominated portions of high salt marshes—as well as stunted or low mangrove communities. CMECS Tidal Scrub-Shrub Wetland [Biotic Subclass] Estuarine or tidal riverine areas dominated by shrub vegetation that has less than 10% tree cover. CMECS Brackish Tidal Scrub-Shrub Wetland [Biotic Group] Tidal areas dominated by shrub or immature tree species that are less than 6 meters tall and have a range of salt tolerance. Salinity may range from 0.5-30 (PSS). CMECS Forested Wetland [Biotic Class] Areas in this class are characterized by woody vegetation that is generally 6 meters or taller. CMECS Tidal Forest/Woodland [Biotic Subclass] Estuarine or tidal riverine areas with greater than 10% tree cover. CMECS Brackish Tidal Forest/Woodland [Biotic Group] Tidal areas dominated by tree species that are greater than 6 meters tall and have a range of salt tolerance. Salinities may range from 0.5-30. CMECS Unclassified Areas within the West Coast USA Current and Historical Estuary Extent, but without a Biotic Component classification. PMEP CMECS_Level The hierarchy of five nested levels in CMECS BC: biotic setting, biotic class, biotic subclass, biotic group, biotic community. CMECS Biotic Class Biotic classes and biotic subclasses describe major biological characteristics at a fairly coarse level. CMECS Biotic Subclass Biotic classes and biotic subclasses describe major biological characteristics at a fairly coarse level. CMECS Biotic Group Biotic groups are observational, descriptive, or functional groupings of the characteristic biological types that occur as generalized patterns across their range. The biotic group level is designed for widespread use among different regions and for use with a variety of sampling methods. Biotic groups are designed as simple observational units, to be based upon regularly recurring biological features that are evident in the environment under observation. Biotic groups are intended to be identifiable using visual methods at appropriate scales. CMECS Biotic Community A biotic community is a repeatable grouping of species that is relatively uniform in structure, species composition, and habitat conditions (Olenin and Ducrotoy 2006, Hiscock and Tyler-Walters 2003). CMECS CMECS_BC_Setting CMECS Biotic Component Setting. The biotic setting separates organisms that live in or are closely associated with the bottom (Benthic Biota) from those organisms that are suspended in the water column or floating on the surface (Planktonic Biota). CMECS Benthic/Attached Biotia This biotic setting describes areas where biota lives on, in, or in close association with the seafloor or other substrates (e.g., pilings, buoys), extending down to include the layers of sediment that contain multi-cellular life. As a rule, Benthic/Attached Biota units are characterized by the various life histories and taxonomic characteristics of the dominant life forms CMECS CMECS_BC_Class CMECS Biotic Class Biotic classes (and biotic subclasses) describe major biological characteristics at a fairly coarse level. Biotic classes (and subclasses) are determined by the dominant percent cover based on the taxonomy and life forms of the living components of the sampled area. CMECS Aquatic Vegetation Bed This class includes subtidal or intertidal bottoms and any other areas characterized by a dominant cover of rooted vascular plants, attached macroalgae, or mosses, which are usually submersed in the water column or floating on the surface. They may be exposed during low tides. CMECS Emergent Wetland Areas in this class are characterized by erect, rooted, herbaceous hydrophytes—excluding emergent mosses and lichens. This vegetation is present for most of the growing season in most years. These wetlands are usually dominated by perennial plants. CMECS Forested Wetland Areas in this class are characterized by woody vegetation that is generally 6 meters or taller. CMECS Scrub-Shrub Wetland Emergent wetland areas dominated by woody vegetation that is generally less than 6 meters tall. Characteristic species include true shrubs, young trees, and trees or shrubs that are small or stunted due to environmental conditions. Scrub-Shrub Wetland includes the shrub-dominated portions of high salt marshes—as well as stunted or low mangrove communities. CMECS CMECS_BC_Subclass CMECS Biotic Subclass Biotic subclasses (and biotic classes) describe major biological characteristics at a fairly coarse level. Biotic subclasses (and classes) are determined by the dominant percent cover based on the taxonomy and life forms of the living components of the sampled area. CMECS Aquatic Vascular Vegetation Aquatic vascular vegetation beds dominated by submerged, rooted, vascular species (such as seagrasses) or submerged or rooted floating freshwater tidal vascular vegetation (such as hornworts [Ceratophyllum spp.] or naiads [Najas spp.]). CMECS Benthic Macroalgae Aquatic beds dominated by macroalgae attached to the substrate, such as kelp, intertidal fucoids, and calcareous algae. Macroalgal communities can exist at all depths within the photic zone, on diverse substrates, and across a range of energy and water chemistry regimes. In the CMECS framework, macroalgae that dominate the benthic environment and form a vegetated cover fall within this subclass. CMECS Emergent Tidal Marsh Communities dominated by emergent, halophytic, herbaceous vegetation (with occasional woody forbs or shrubs) along low-wave-energy, intertidal areas of estuaries and rivers. CMECS Tidal Forest/Woodland Estuarine or tidal riverine areas with greater than 10% tree cover. CMECS Tidal Scrub-Shrub Wetland Estuarine or tidal riverine areas dominated by shrub vegetation that has less than 10% tree cover CMECS CMECS_BC_Group CMECS Biotic Group Biotic groups are observational, descriptive, or functional groupings of the characteristic biological types that occur as generalized patterns across their range. The biotic group level is designed for widespread use among different regions and for use with a variety of sampling methods. Biotic groups are designed as simple observational units, to be based upon regularly recurring biological features that are evident in the environment under observation. Biotic groups are intended to be identifiable using visual methods at appropriate scales. CMECS Brackish Emergent Tidal Marsh Marshes dominated by species with a wide range of salinity tolerance. Depending on the salinity levels (0.5-30), more or less salt-intolerant species may be present. CMECS Brackish Tidal Scrub-Shrub Wetland Tidal areas dominated by shrub or immature tree species that are less than 6 meters tall and have a range of salt tolerance. Salinity may range from 0.5-30 (PSS). CMECS Brackish Tidal Forest/Woodland Tidal areas dominated by tree species that are greater than 6 meters tall and have a range of salt tolerance. Salinities may range from 0.5-30. CMECS CMECS_BC_Modifier CMECS Biotic Component Modifier Definition: Modifiers are physicochemical, spatial, geological, biological, anthropogenic, and temporal variables with defined categorical values and ranges that are used to describe CMECS units. Modifiers can be applied when additional information is needed to further characterize an identified unit for individual applications. Modifiers provide additional environmental, structural, or biological information about the ecosystem; modifiers are useful for description and application—but they are not required for classification according to the CMECS schema. Note: This attribute is only present for CMECS BC data from the Oregon Coastal Management Program. All “AI07” attributes from the OCMP dataset were calculated to “Impounded/diverted” in this field. See http://www.coastalatlas.net/documents/cmecs/EPSM_CoreGISMethods.pdf for additional details. CMECS Impounded/Diverted Areas where artificial construction impedes, redirects, or retains hydrological flow by building or placing barriers (e.g., dams, levees, dikes, berms, seawalls, or piers); these structures are designed to either retain water or to prevent inundation. CMECS CMECS_ID CMECS Identifier. Refer to the “CMECS_BC_Name” field for full Biotic Component descriptions. Note that the community group "Eelgrass" does not currently have an official CMECS ID. https://www.cmecscatalog.org 389 Benthic/Attached Biota https://www.cmecscatalog.org 394 Aquatic Vegetation Bed https://www.cmecscatalog.org 433 Benthic Macroalgae https://www.cmecscatalog.org 434 Aquatic Vascular Vegetation https://www.cmecscatalog.org 567 Seagrass Bed https://www.cmecscatalog.org 391 Faunal Bed https://www.cmecscatalog.org 395 Emergent Wetland https://www.cmecscatalog.org 435 Emergent Tidal Marsh https://www.cmecscatalog.org 568 Brackish Emergent Tidal Marsh https://www.cmecscatalog.org 396 Scrub-Shrub Wetland https://www.cmecscatalog.org 437 Tidal Scrub-Shrub Wetland https://www.cmecscatalog.org 574 Brackish Tidal Scrub-Shrub Wetland https://www.cmecscatalog.org 397 Forested Wetland https://www.cmecscatalog.org 438 Tidal Forest/Woodland https://www.cmecscatalog.org 578 Brackish Tidal Forest/Woodland https://www.cmecscatalog.org CMECS_link Link to CMECS Unit classification definition and description on the “CMECS Catalog of Units” website (https://www.cmecscatalog.org/cmecs/). https://www.cmecscatalog.org/cmecs/classification/unit/[CMECS_ID}.html https://www.cmecscatalog.org Acres The area of the polygon feature, in acres, as calculated using Custom West Coast Albers projection. PMEP value calculated from feature geometry Hectares The area of the polygon feature, in hectacres, as calculated using Custom West Coast Albers projection. PMEP value calculated from feature geometry Data_Source The organization, or organizations, whom provided spatial data for the CMECS Biotic Component. PMEP OCMP Oregon Coastal Management Program (Oregon Department of Land Conservation and Development) PMEP PMEP Pacific Marine and Estuarine Fish Habitat Partnership PMEP PMEP/PC Trask Pacific Marine and Estuarine Fish Habitat Partnership and PC Trask and Associates (for Columbia River estuaries). PMEP Link Unique link field for PMEP spatial data products. ("PMEP_EstuaryID"_"Estuary_Name") PMEP Shape_Area Area of feature in internal units squared. Esri Positive real numbers that are automatically generated. PMEP_PolyID Data_Source_Vers This field contains the version number of the data (use in combindation with the "Data_Source" field). PMEP, OCMP Data_Year Year of most recent data set informing this polygon. Used for eelgrass data and select classes from Oregon/OCMP. PMEP NWI_Year This value represents the latest year of data aquisition for the National Wetlands Inventory (NWI) for each estuary. This information was determined from the NWI metadata layers. PMEP 1980 2014 Habitat_Source_Percent This comma-delimited field contains a listing of NWI and C-CAP sources which contribute to a polygon, as well as the percentage of the contribution. Note that NWI values appear as the "ATTRIBUTE" codes (e.g. PEM1/SS1C) and C-CAP classes are spelled out (e.g. Palustrine Scrub/Shrub Wetland). PMEP These values are based on contributing codes from NWI and C-CAP. CMECS_BC_Community A biotic community is a repeatable grouping of species that is relatively uniform in structure, species composition, and habitat conditions (Olenin and Ducrotoy 2006, Hiscock and Tyler-Walters 2003). Biotic communities can be identified observationally, or (ideally) as statistically repeating species assemblages across their range of occurrence. The assemblage can be identified by diagnostic organisms that are dominant, highly constant, or otherwise distinctive. CMECS Eelgrass Eelgrass, Zostera spp., is a marine flowering plant that is found in temperature zones in soft-bottom habitats in estuaries and coastal environments worldwide. Eelgrass is the most common seagrass taxon along the U.S. West Coast and occurs from Alaska to Baja California. PMEP Pacific States Marine Fisheries Commission PSMFC GIS GIS mailing and physical 205 SE Spokane St., Suite 100 Oregon 97202 503-595-3100 gis@psmfc.org These data represent the Biotic Component (BC) of the Coastal and Marine Ecological Classification Standard (CMECS) for estuaries of the West Coast of the contiguous United States. See access and use constraints information. File Geodatabase Feature Class 10.7 213 https://honu.psmfc.org/server/rest/services/PMEP/West_Coast_USA_Estuarine_Biotic_Habitat/MapServer https://psmfc.sharefile.com/d-s9ec38b8bbd94761b https://psmfc.sharefile.com/d-s9bd389f11524f78b http://www.pacificfishhabitat.org/data/estuarine-biotic-habitat These data represent the Biotic Component (BC) of the Coastal and Marine Ecological Classification Standard (CMECS) for estuaries of the West Coast of the contiguous United States. https://wildlife.ca.gov/Data/BIOS https://filelib.wildlife.ca.gov/Public/BDB/GIS/BIOS/Public_Datasets/2700_2799/ds2793.zip 20200106 Pacific States Marine Fisheries Commission PSMFC GIS GIS mailing and physical

205 SE Spokane St., Suite 100

Portland OR 97202 503-595-3100 gis@psmfc.org FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 local time This product is for informational purposes only and is not intended for navigational, legal, engineering, or surveying purposes; it is provided with the understanding that conclusions drawn from the information are the responsibility of the user.