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Legend (nccos/BiogeographicAssessments_NCCOS_ChoptankRiver)

Choptank Habitat Focus Area Boundaries (1)
Harris Creek Boundary (2)
Tred Avon Boundary (3)
Little Choptank Boundary (4)
Choptank Tributaries (5)
Choptank Subsections (6)
Little Choptank Little Choptank
Lower Choptank Lower Choptank
Middle Choptank Middle Choptank
Upper Choptank Upper Choptank
Choptank Subwatershed Monitoring Segments (7)
Outer Chotank Outer Chotank
Lower Choptank Lower Choptank
Middle Choptank Middle Choptank
Upper Choptank Upper Choptank
Little Choptank Little Choptank
Choptank Waterbody Monitoring Segments (8)
Land Cover 2010 Subset (10)
Water Water
Other Land Covers Other Land Covers
Urban Urban
Agriculture Agriculture
Land Cover 2010 (11)
Background Background
Bare Land Bare Land
Cultivated Crops Cultivated Crops
Deciduous Forest Deciduous Forest
Developed, High Intensity Developed, High Intensity
Developed, Low Intensity Developed, Low Intensity
Developed, Medium Intensity Developed, Medium Intensity
Developed, Open Space Developed, Open Space
Estuarine Emergent Wetland Estuarine Emergent Wetland
Estuarine Forested Wetland Estuarine Forested Wetland
Estuarine Scrub/Shrub Wetland Estuarine Scrub/Shrub Wetland
Evergreen Forest Evergreen Forest
Grassland/Herbaceous Grassland/Herbaceous
Mixed Forest Mixed Forest
Open Water Open Water
Palustrine Aquatic Bed Palustrine Aquatic Bed
Palustrine Emergent Wetland Palustrine Emergent Wetland
Palustrine Forested Wetland Palustrine Forested Wetland
Palustrine Scrub/Shrub Wetland Palustrine Scrub/Shrub Wetland
Pasture/Hay Pasture/Hay
Scrub/Shrub Scrub/Shrub
Unclassified Unclassified
Unconsolidated Shore Unconsolidated Shore
Choptank 2006 (12)
Bare Land Bare Land
Cultivated Crops Cultivated Crops
Deciduous Forest Deciduous Forest
Developed, High Intensity Developed, High Intensity
Developed, Low Intensity Developed, Low Intensity
Developed, Medium Intensity Developed, Medium Intensity
Developed, Open Space Developed, Open Space
Estuarine Emergent Wetland Estuarine Emergent Wetland
Estuarine Forested Wetland Estuarine Forested Wetland
Estuarine Scrub/Shrub Wetland Estuarine Scrub/Shrub Wetland
Evergreen Forest Evergreen Forest
Grassland/Herbaceous Grassland/Herbaceous
Mixed Forest Mixed Forest
Open Water Open Water
Palustrine Aquatic Bed Palustrine Aquatic Bed
Palustrine Emergent Wetland Palustrine Emergent Wetland
Palustrine Forested Wetland Palustrine Forested Wetland
Palustrine Scrub/Shrub Wetland Palustrine Scrub/Shrub Wetland
Pasture/Hay Pasture/Hay
Scrub/Shrub Scrub/Shrub
Unclassified Unclassified
Unconsolidated Shore Unconsolidated Shore
Land Cover 2001 (13)
Bare Land Bare Land
Cultivated Crops Cultivated Crops
Deciduous Forest Deciduous Forest
Developed, High Intensity Developed, High Intensity
Developed, Low Intensity Developed, Low Intensity
Developed, Medium Intensity Developed, Medium Intensity
Developed, Open Space Developed, Open Space
Estuarine Emergent Wetland Estuarine Emergent Wetland
Estuarine Forested Wetland Estuarine Forested Wetland
Estuarine Scrub/Shrub Wetland Estuarine Scrub/Shrub Wetland
Evergreen Forest Evergreen Forest
Grassland/Herbaceous Grassland/Herbaceous
Mixed Forest Mixed Forest
Open Water Open Water
Palustrine Aquatic Bed Palustrine Aquatic Bed
Palustrine Emergent Wetland Palustrine Emergent Wetland
Palustrine Forested Wetland Palustrine Forested Wetland
Palustrine Scrub/Shrub Wetland Palustrine Scrub/Shrub Wetland
Pasture/Hay Pasture/Hay
Scrub/Shrub Scrub/Shrub
Unclassified Unclassified
Unconsolidated Shore Unconsolidated Shore
Land Cover 1996 (14)
Bare Land Bare Land
Cultivated Crops Cultivated Crops
Deciduous Forest Deciduous Forest
Developed, High Intensity Developed, High Intensity
Developed, Low Intensity Developed, Low Intensity
Developed, Medium Intensity Developed, Medium Intensity
Developed, Open Space Developed, Open Space
Estuarine Emergent Wetland Estuarine Emergent Wetland
Estuarine Forested Wetland Estuarine Forested Wetland
Estuarine Scrub/Shrub Wetland Estuarine Scrub/Shrub Wetland
Evergreen Forest Evergreen Forest
Grassland/Herbaceous Grassland/Herbaceous
Mixed Forest Mixed Forest
Open Water Open Water
Palustrine Aquatic Bed Palustrine Aquatic Bed
Palustrine Emergent Wetland Palustrine Emergent Wetland
Palustrine Forested Wetland Palustrine Forested Wetland
Palustrine Scrub/Shrub Wetland Palustrine Scrub/Shrub Wetland
Pasture/Hay Pasture/Hay
Scrub/Shrub Scrub/Shrub
Unclassified Unclassified
Unconsolidated Shore Unconsolidated Shore
Environmental Sensitivity Index (General) (16)
Salt- and brackish-water marshes Salt- and brackish-water marshes
Other Natural Composition Other Natural Composition
Riprap Riprap
Solid man-made structures Solid man-made structures
Environmental Sensitivity Index (Detailed) (17)
Coarse-grained sand beaches Coarse-grained sand beaches
Fine- to medium-grained sand beaches Fine- to medium-grained sand beaches
Riprap Riprap
Salt- and brackish-water marshes Salt- and brackish-water marshes
Scarps and steep slopes in sand Scarps and steep slopes in sand
Scrub-shrub wetlands Scrub-shrub wetlands
Solid man-made structures Solid man-made structures
Swamps Swamps
Tidal flats Tidal flats
Vegetated low banks Vegetated low banks
Shoreline Situation Report (General) (18)
Natural Natural
Riprap Riprap
Man-Made Structures Man-Made Structures
Shoreline Situation Report (Detailed) (19)
Natural Natural
Breakwater Breakwater
Bulkhead Bulkhead
Debris Debris
Dilapidated bulkhead Dilapidated bulkhead
Groin field Groin field
Jetty Jetty
Marina Marina
Marina, <50 slips Marina, <50 slips
Marina, >50 slips Marina, >50 slips
Miscellaneous Miscellaneous
Riprap Riprap
Unconventional Unconventional
Midshore Riverkeeper Conservancy Salinity Regimes 2014 (22)
Tidal Fresh (0.0 - 0.5 ppt) Tidal Fresh (0.0 - 0.5 ppt)
Oligohaline (0.6 - 5.0 ppt) Oligohaline (0.6 - 5.0 ppt)
Mesohaline (5.1 - 18.0 ppt) Mesohaline (5.1 - 18.0 ppt)
Midshore Riverkeeper Conservancy Clarity 2014 (23)
Meet (≥0.85m Tidal Fresh, ≥0.65m Oligohaline, ≥1.625m Mesohaline) Meet (≥0.85m Tidal Fresh, ≥0.65m Oligohaline, ≥1.625m Mesohaline)
Fail (<0.85m Tidal Fresh, <0.65m Oligohaline, <1.625m Mesohaline) Fail (<0.85m Tidal Fresh, <0.65m Oligohaline, <1.625m Mesohaline)
Midshore Riverkeeper Conservancy Surface Dissolved Oxygen 2014 (24)
Fail < (5.00 mg/l) Fail < (5.00 mg/l)
Meet ≥ (5.00 mg/l) Meet ≥ (5.00 mg/l)
Midshore Riverkeeper Conservancy Summer Bottom DO 2014 (25)
Poor ≤ (3.00 mg/l) Poor ≤ (3.00 mg/l)
Fair (3.00 - 5.00 mg/l) Fair (3.00 - 5.00 mg/l)
Good ≥ (5.00 mg/l) Good ≥ (5.00 mg/l)
Midshore Riverkeeper Conservancy Total Nitrogen 2014 (26)
Meet ≤ (0.65 mg/l) Meet ≤ (0.65 mg/l)
Fail > (0.65 mg/l) Fail > (0.65 mg/l)
Midshore Riverkeeper Conservancy Total Phosphorus 2014 (27)
Meet ≤ (0.037 mg/l) Meet ≤ (0.037 mg/l)
Fail > (0.037 mg/l) Fail > (0.037 mg/l)
Midshore Riverkeeper Conservancy Chlorophyll A 2014 (28)
Meet ≤ (15.00 ug/l) Meet ≤ (15.00 ug/l)
Fail > (15.00 ug/l) Fail > (15.00 ug/l)
Midshore Riverkeeper Conservancy Monitoring Stations 2014 (29)
Midshore Riverkeeper Conservancy Segments (30)
Broad Creek Broad Creek
Harris Creek Harris Creek
Island Creek Island Creek
La Trappe Creek La Trappe Creek
Little Choptank Little Choptank
Lower Choptank Lower Choptank
Middle Choptank Middle Choptank
Outer Choptank Outer Choptank
Tred Avon River Tred Avon River
Tuckahoe Creek Tuckahoe Creek
Upper Choptank Upper Choptank
Concentration of Total Suspended Matter (Winter, 2009-2015)(mg/L) (32)
Red: Band_1 Red: Band_1
Green: Band_2 Green: Band_2
Blue: Band_3 Blue: Band_3
Concentration of Total Suspended Matter (Spring, 2009-2015)(mg/L) (33)
Red: Band_1 Red: Band_1
Green: Band_2 Green: Band_2
Blue: Band_3 Blue: Band_3
Concentration of Total Suspended Matter (Summer, 2009-2015)(mg/L) (34)
Red: Band_1 Red: Band_1
Green: Band_2 Green: Band_2
Blue: Band_3 Blue: Band_3
Concentration of Total Suspended Matter (Fall, 2009-2015)(mg/L) (35)
Red: Band_1 Red: Band_1
Green: Band_2 Green: Band_2
Blue: Band_3 Blue: Band_3
Maryland Biological Stream Survey Monitoring Stations (36)
Waste Water Treatment Plants (37)
Chesapeake Bay Program Water Quality Longterm Monitoring Stations (38)
Versar BIBI Fixed Stations (41)
Versar BIBI Random Stations (42)
1995 1995
1996 1996
1997 1997
1998 1998
1999 1999
2000 2000
2001 2001
2002 2002
2003 2003
2004 2004
2005 2005
2006 2006
2007 2007
2008 2008
2009 2009
2010 2010
2011 2011
2012 2012
2013 2013
2014 2014
Versar BIBI Random Stations Condition (43)
Meets restoration goals Meets restoration goals
Degraded Degraded
Severely degraded Severely degraded
MBSS Sentinel Site (45)
MBSS BIBI Random Stations (46)
1996 1996
1997 1997
2000 2000
2001 2001
2002 2002
2003 2003
2004 2004
2005 2005
2006 2006
2007 2007
2008 2008
2009 2009
2010 2010
2011 2011
2012 2012
2013 2013
2014 2014
MBSS BIBI Random Stations Condition (47)
Good Good
Fair Fair
Poor Poor
Very Poor Very Poor
SAV persistence (49)
1 1
2 2
3 3
4 4
5 5
SAV 2014 (50)
SAV 2013 (51)
SAV 2012 (52)
SAV 2011 (53)
SAV 2010 (54)
SAV 2009 (55)
SAV 2008 (56)
SAV 2007 (57)
SAV 2006 (58)
SAV 2005 (59)
Choptank Fish Passage (62)
1 - 4 1 - 4
5 - 8 5 - 8
9 - 12 9 - 12
13 - 16 13 - 16
17 - 20 17 - 20
Choptank Fish Blockage (63)
Choptank MBSS Fish IBI - Condition (64)
Good Good
Fair Fair
Poor Poor
Very Poor Very Poor
MD DNR-FHEP Estuarine Community Sampling - seine (66)
MD DNR-FHEP Estuarine Community Sampling - trawl (67)
University of Maryland Surveys (68)
Mid-Water Trawl Mid-Water Trawl
Seine Seine
MD Biological Stream Survey (69)
MD DNR Juvenile Fish Seine Survey (70)
Auxillary Auxillary
Permanent Permanent
Herring Spawning Habitat (71)
Essential Fish Habitat Consultations (73)
Historic Oyster Bars (75)
Oyster Protected Areas (76)
Oyster Public Shelfishery Areas (77)
Anthropogenic Oyster (78)
Biogenic Oyster (79)
Oyster Planting 2000-2013 (80)
Historic Oyster Planting 1958-1999 (81)
Choptank Oyster Longterm Monitoring Stations (82)
Benthic Habitat (84)
Anthropogenic Oyster Reef Anthropogenic Oyster Reef
Anthropogenic Oyster Rubble Anthropogenic Oyster Rubble
Biogenic Oyster Reef Biogenic Oyster Reef
Biogenic Oyster Rubble Biogenic Oyster Rubble
Mud Mud
Muddy Sand Muddy Sand
Sand Sand
Sandy Mud Sandy Mud
Unclassified Unclassified
Unspecified Rock Reef Unspecified Rock Reef
Unspecified Shell Reef Unspecified Shell Reef