Gulf of Maine Bottom Longline Survey
ArcGIS Feature Service
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InPort Metadata
Yes, see here.
Description
The Cooperative Gulf of Maine Bottom Longline Survey is conducted in the western and central Gulf of Maine. We work with our region’s commercial fishing community to collect fisheries data in rocky bottom habitats that complements data collected on our annual bottom trawl surveys. Rocky habitats are a challenge to sample with trawl survey gear. Our Bottom Longline Survey addresses that concern by using gear more likely to capture species that prefer rough-bottom habitat in the Gulf of Maine. The survey provides data on commercially and recreationally important fish species as well as critical information about data-poor species. Our survey provides a more complete picture of the abundance, distribution, and biology of commercially and recreationally important fish that live in rocky habitats. Longlines are good at sampling for fish in rocky areas, increasing the data available to study these populations. As a result, stock assessments are more robust and fishery managers have better information to go on when crafting fishing regulations. By working with fishermen to develop and execute this survey, we hope to build trust in the data produced. For more information, see Gulf of Maine Bottom Longline Survey.
Spatial Extent
Layers
| id | name | type | geometryType |
|---|---|---|---|
| 0 | SMIT_GOMBLL_STRATA | Feature Layer | esriGeometryPolygon |
Fields
SMIT_GOMBLL_STRATA
Description
Scientific survey strata for the Gulf of Maine Bottom Longline Survey.
| name | alias | description | dataType |
|---|---|---|---|
| OID | OID | Original object ID | esriFieldTypeBigInteger |
| SURVEY_NAME | Survey name | Name of NEFSC scientific survey | esriFieldTypeString |
| STR2 | Str2 | The predefined area where the longline gear was assigned to be deployed. Stratum is a two digit number referring to the stratum number from the SVDBS stratum definition. | esriFieldTypeBigInteger |
| STRATUMA | Stratum | A predefined area where longline gear was deployed. Code consists of 2 parts: Stratum group code number (2 bytes) and stratum number (3 bytes). | esriFieldTypeString |
| NUMPICKS | Number of picks | Number of survey stations within strata | esriFieldTypeBigInteger |
| CALCULATED | Area (sq km) | Area of strata in square kilometers | esriFieldTypeDouble |