SEFSC Mid-Atlantic Tursiops Survey, 1995 2
Southeast Fisheries Science Center, NOAA
Garrison, L. 2013. SEFSC Mid-Atlantic Tursiops Survey, 1995 2. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/89) on yyyy-mm-dd.
Halpin, P.N., A.J. Read, E. Fujioka, B.D. Best, B. Donnelly, L.J. Hazen, C. Kot, K. Urian, E. LaBrecque, A. Dimatteo, J. Cleary, C. Good, L.B. Crowder, and K.D. Hyrenbach. 2009. OBIS-SEAMAP: The world data center for marine mammal, sea bird, and sea turtle distributions. Oceanography. 22(2):104-115.
Mid Atlantic Tursiops Surveys (MATS) were conducted in 1995 by NOAA Southeast Fisheries Science Center to examine the distribution and estimate an index of relative abundance for Atlantic bottlenose dolphins (Tursiops truncatus) inhabiting the nearshore coastal waters in mid-and southern Atlantic bight. This data set contains sightings of not only the target dolphins but also other species including cetaceans, sea turtles, fish and shark observed during the aerial surveys.
The same transects were traced three times on different dates during the survey period. This data set is the second one. The other two are provided, too, with the number following MATS95s indicating the first, second and last.
Cetacean and sea turtles observed include as follows.
<< Cetacean >>
Atlantic spotted dolphin
Standard Bottlenose dolphin
<< Sea Turtle >>
Survey's transects information is available in MATS95s2Efforts.
The purpose of this survey was to examine the distribution and estimate an index of relative abundance for Atlantic bottlenose dolphins inhabiting the nearshore coastal waters of the U.S. mid- and southern Atlantic bight.
Records with no common name are some pollution observed (e.g. plastic).
Records were assigned a sequential number LineNo. LineNo can be used to match observations with corresponding transects, each of which has BegLineNo and EndLineNo fields. Observation records with their LineNo between BegLineNo and EndLineNo in a transect are related to that transect.
A duplicated LineNo indicates more than one species were observed at the same time.
Records include 'off-effort' sightings as well. Card 'F' indicates that the observation was done while off-effort. Card D is used for observation while on effort.
When searching for a specific species, note that some records don't identify animals observed at a species level. If this is the case, the common/scientific name may be genus/family or higher (e.g. Balaenoptera sp.).
Attributes described below represent those in the original dataset provided by the provider.
The dataset contains information necessary to locate the species sightings observed in the survey. The structure of the dataset was defined by NOAA Southeast Fisheries Science Center. Note that the dataset is a subset of the larger, complete dataset collected in the survey which includes environmental information. The columns before LineNo are applied to the shapefile only. The following information is not included in the dataset but will be found in the master data. For details, please contact NOAA Southeast Fisheries Science Center. Track; Speed; GPS Status; Observers; Airplane altitude; Weather; Sea state; Turbidity; Sunlight; Glare; Water color; Water temperature; Sighting angle; Effort status.
Attributes in dataset provided
|Rays and sharks||230|
|Latitude||35.25 - 40.50|
|Longitude||-75.96 - -73.30|
|Coord. prec.||4 decimal digits|
|Data type||Animal sighting|
|Effort||YES (ID: 93)|
|Sharing policy||CC-BY-NC (Minimum)|
|Also availalbe from||
|See metadata in static HTML|
|See metadata in FGDC XML|
|See download history / statistics|