Coastal Shark Bottom Longline Survey
ArcGIS Feature Service
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InPort Metadata
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Description
Since 1986, members of the NEFSC Apex Predators Program have conducted thirteen Coastal Shark Bottom Longline Surveys along the US Atlantic coast in April and May of each survey year. The initial survey was conducted in 1986 between Tampa Bay, Florida and southern Rhode Island (Cruise DE II 89-03) in a fixed-station survey design covering 137 stations across three depth strata on the continental shelf. Since that survey, stations and survey range have been truncated due to time constraints and bottom conditions at some stations. The current survey track includes 95 stations and extends from southern Florida to Delaware. In 1996, the gear was updated to reflect that of the commercial large coastal shark fishery and soak times were increased to 3 hours to obtain a higher catch. Bait, gear, and fishing methods have remained the same since that time. Various vessels have been used to stage the survey, with the F/V Eagle Eye II used consistently since 2012. Station locations are fixed but the set direction for transects is dependent on prevailing wind and current directions. The biological studies of sharks conducted during the survey have remained the same since 1986.
Spatial Extent
Layers
| id | name | type | geometryType |
|---|---|---|---|
| 0 | SMIT_CSBLL_STATIONS | Feature Layer | esriGeometryPoint |
| 1 | SMIT_CSBLL_STRATA | Feature Layer | esriGeometryPolygon |
Fields
SMIT_CSBLL_STATIONS
Description
Sampling stations for the Coastal Shark Bottom Longline Survey.
| name | alias | description | dataType |
|---|---|---|---|
| OID | OID | Original object ID | esriFieldTypeBigInteger |
| SURVEY_NAME | Survey name | Name of NEFSC scientific survey | esriFieldTypeString |
| STATION | Station | Station ID number | esriFieldTypeDouble |
| LAT | Latitude | Latitude of survey station in decimal degrees | esriFieldTypeDouble |
| LON | Longitude | Longitude of survey station in decimal degrees | esriFieldTypeDouble |
SMIT_CSBLL_STRATA
Description
Scientific survey strata for the Coastal Shark Bottom Longline Survey.
| name | alias | description | dataType |
|---|---|---|---|
| OID | OID | Original object ID | esriFieldTypeBigInteger |
| SURVEY_NAME | Survey name | Name of NEFSC scientific survey | esriFieldTypeString |