Ecosystem Monitoring Survey
ArcGIS Feature Service
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InPort Metadata
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Description
The principal objective of Ecosystem Monitoring (EcoMon) program is to assess the hydrographic, planktonic and pelagic components of the Northeast U.S. Continental Shelf Ecosystem. Ecosystem Monitoring surveys contribute to stock assessments, protected species assessments, and ecosystem assessments. EcoMon surveys sample the continental shelf from 2 – 4 times per year. Plankton samples are also collected on the Northeast Fisheries Science Center spring and fall bottom trawl surveys.
Spatial Extent
Layers
| id | name | type | geometryType |
|---|---|---|---|
| 0 | SMIT_ECOMON_STATIONS | Feature Layer | esriGeometryPoint |
| 1 | SMIT_ECOMON_STRATA | Feature Layer | esriGeometryPolygon |
Fields
SMIT_ECOMON_STATIONS
Description
There are thirty-five Ecosystem Monitoring fixed hydrographic sampling stations across the Northeast Shelf ecosystem. Four transects run from inshore to off the continental shelf from north of Cape Hatteras to Cape Cod. One transect bisects the Gulf of Maine from the coast of Maine and across Georges Bank. The remaining twelve stations in the Gulf of Maine sample deep basins, banks, coastal areas, and the inflow (Northeast Channel) and out flow (Great South Channel) of the gulf.
| name | alias | description | dataType |
|---|---|---|---|
| OID | OID | Original object ID | esriFieldTypeBigInteger |
| SURVEY_NAME | Survey name | Name of NEFSC scientific survey | esriFieldTypeString |
| EM_SEQ | Em sequence | Em sequence number | esriFieldTypeDouble |
| FIXED_SEQ | Fixed sequence | Fixed sequence number | esriFieldTypeDouble |
| NAME | Name | Unique strata/station ID | esriFieldTypeString |
| REGION | Strata region | Strata groupings (MAB = Mid-Atlantic Bight, SNE = Southern New England, GB = Georges Bank, GOM = Gulf of Maine) | esriFieldTypeString |
| STRATA | Strata | Unique strata ID number | esriFieldTypeDouble |
| DEPLOYMENT | Deployment | Equipment deployment type | esriFieldTypeString |
| BONGO_PROTOCOL | Bongo protocol | Bongo protocol | esriFieldTypeString |
| DEPTH | Depth (m) | Station depth in meters | esriFieldTypeDouble |
| LAT | Latitude | Latitude of survey station in decimal degrees | esriFieldTypeDouble |
| LON | Longitude | Longitude of survey station in decimal degrees | esriFieldTypeDouble |
SMIT_ECOMON_STRATA
Description
Ecosystem Monitoring plankton stations are selected using a random-stratified design based on the Northeast Fisheries Science Center bottom trawl survey design. There are forty-seven plankton strata across the Northeast Shelf ecosystem. The strata are combined into four regions from Cape Hatteras to Cape Sable (Mid-Atlantic Bight, Southern New England, Georges Bank, and Gulf of Maine). Thirty randomly selected stations are targeted for sampling from each region during a survey.
| name | alias | description | dataType |
|---|---|---|---|
| OID | OID | Original object ID | esriFieldTypeBigInteger |
| SURVEY_NAME | Survey name | Name of NEFSC scientific survey | esriFieldTypeString |
| STR_NAME | Strata name | Name of the strata numeric from 1 to 47, except for one stratum that is split into two polygons. Strata 38 is split and the name was changed to distinguish the east and west polygons. | esriFieldTypeDouble |
| NUMOFPOLY | Number of polygons | Number of polygons that make up the strata (1 or 2) | esriFieldTypeDouble |
| NUMOFSTA | Number of stations | Number of plankton stations sampled in the strata for current ECOMON program | esriFieldTypeDouble |
| REGION | Strata region | Strata groupings (MAB = Mid-Atlantic Bight, SNE = Southern New England, GB = Georges Bank, GOM = Gulf of Maine) | esriFieldTypeString |
| AREA | Area (sq km) | Area of strata in square kilometers. Note area reported for 381 and 382 is the same, and equals total for the two polygons combined | esriFieldTypeDouble |
| TYPE | Type | Strata description (C = coastal, IS = inner-shelf, MS = mid-shelf, SB = shelf break, Bank = bank, Off = off-shelf, Basin = deep basin) | esriFieldTypeString |
| ACRES | Area (acres) | Area of strata in acres | esriFieldTypeDouble |