SEFSC Mid-Atlantic Tursiops Survey, 1995 2
NOAA Southeast Fisheries Science Center (SEFSC)
Dataset credit
Southeast Fisheries Science Center, NOAA
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Contacts
Role | Name | Organization | |
Primary contact |
Lance Garrison |
NOAA Southeast Fisheries Science Center |
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Data entry |
Ei Fujioka |
Duke University |
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Citation
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.
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Abstract
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 >> Hardshell Kemp's ridley Leatherback Loggerhead
Survey's transects information is available in MATS95s2Efforts.
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Purpose
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.
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Supplemental information
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.).
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References
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Attributes
Overview
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 described below represent those in the original dataset provided by the provider.
All attributes are included in the downloadable file (CSV or ESRI File Geodatabase) for "Complete Set of Dataset".
Attributes in dataset
Attribute (table column) | Description |
lineno | Line number |
card | Card |
studyblock | Study block |
part | definition not provided |
date | Date of the observation |
time | Time of the observation (local time) |
longitude | Longitude in decimal degrees |
latitude | Latitude in decimal degrees |
track | Track No |
speed | Speed |
gpsstatus | GPS status |
leftobs | Left observer |
rightobs | Right observer |
datarcdr | definition not provided |
altitude | Altitude in feet |
weather | Weather code |
seastate | Sea state |
turbidity | Turbidity |
sunlight | Sunlight |
glare | Glare |
watercolor | Water color |
watertemp | Water temperature in degree Celsius |
sightobs | Observer sighted |
sightangle | Angle |
sightinc | definition not provided |
species | Species name |
tsn | ITIS Taxonomic Serial Number added by OBIS-SEAMAP |
common | Common name |
scientific | Scientific name |
herdsize | Group size |
nocalves | Number of calves |
effortstat | Effort status |
transectno | Transect No |
geom | Geometry field added by OBIS-SEAMAP |
oid | Unique ID number (generated by OBIS-SEAMAP) |
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OBIS-SEAMAP ID | 89 |
Seabirds | 0 |
Marine mammals | 50 |
Sea turtles | 389 |
Rays and sharks | 230 |
Other species | 158 |
Non spatial | 0 |
Non species | 399 |
Total | 1,226 |
Date, Begin | 1995-07-24 |
Date, End | 1995-07-31 |
Temporal prec. | 111111 |
Latitude | 35.25 - 40.50 |
Longitude | -75.96 - -73.30 |
Coord. prec. | 4 decimal digits |
Platform | Plane |
Data type | Animal sighting |
Effort | YES (ID: 93) |
if ($show_effort_stat) {
?>
Traveled (km) | 2,400 |
Effort hours | 12 |
}
if ($sources != null and $sources != "" and $dataset_id != 427) { // Do not show ESAS
?>
Contr. through | |
}
?>
Registered | 2005-06-28 |
Updated | 2013-11-23 |
Status | Published |
Sharing policy |
CC0 no rights reserved |
Shared with |
OBIS
GBIF (via DOI) |
See metadata in static HTML |
See metadata in FGDC XML |
See download history / statistics |
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