- Info
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| Y axis: #observations |
Left Y: Traveled (km)
Right Y: Effort hours
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| Legend | Environmental layer currently displayed |
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None
(To turn on environmental layer, see the instruction below.) |
| General Description |
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Attributes data may be available upon request. Please contact the data provider(s).
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View the dataset with full-featured Online Mapper |
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View the dataset with Google Earth interface |
| ESAS Summary Layers |
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| Instructions |
- Check the layer(s) you want to map. You can turn the two layers on at once.
- Enter month and/or year in the correspoing boxes (optional).
- For 5'x10' Summary, choose one of the species.
- Hit [Update].
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| Operational Notes |
- When the ESAS Summary layer(s) is on, the SEAMAP standard layers will be turned off.
- [Month] and [Year] are optional. If left blank, it returns average density of the species or total effort.
- To get back to the SEAMAP standard layers, turn the two layers off and hit [Update].
- Drawing/modifying a region of interest does not automatically refresh the map. Please hit [Update].
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| 5'x10' Summary |
Data are plotted as densities (birds per km2), by summing the number of birds recorded in transect, both on the water and flying, in each 1/36 ICES rectangle (5' Lat by 10'long),
and dividing this by the area surveyed in that rectangle (only birds seen in strip transects were analysed).
This was done for each month of the year for each 1/36 rectangle from 1978 - 2002.
To account for variations in detection of birds on the water at different distances from the ship, the numbers of birds (excluding those flying) were multiplied by a factor according to species and width of the strip transect.
The lat and long values refer to the centre of each 1/36 ICES rectangle.
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| 5'x10' Effort Summary |
Number of km surveyed.
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Get this dataset as ESRI shapefile |
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Get this dataset in CSV (Excel-ready) format |
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Get observation data currently shown on the map in CSV (Excel-ready) format (Marine mammals only, Seabirds only, Sea turtles only) |
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Get current chart data in CSV (Excel-ready) format (time range criteria is ignored) |
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Get metadata in FGDC compliant XML format (stylized preview) |
| ESAS Summary Layers |
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Get whole 5'x10' Summary as ESRI shapefile |
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Get whole 5'x10' Effort Summary as Microsoft Access database |
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Get 5'x10' Summary currently shown on the map in CSV (Excel-ready) format |
Notes: Maximum number of records downloadable at once is 65,000. If exceeded, you'll get a warning. Please tighten your criteria. |
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OBIS-SEAMAP Terms of Use
By accepting this document and using OBIS-SEAMAP the user agrees to
the following:
- Not to use data contained in OBIS-SEAMAP in any publication,
product, or commercial application without prior written consent of the original
data provider.
- To cite both the data provider and OBIS-SEAMAP appropriately
after approval of use is obtained.
Example citation for a dataset: Read, A.J. & A.J. Westgate. 1997. Monitoring the movements of harbour porpoises (Phocoena phocoena) with satellite telemetry. Marine Biology, 130: 315-322 .
Suggested citation for OBIS-SEAMAP: Read, A.J., Halpin, P.N., Crowder, L.B., Best, B.D., Fujioka, E.(Editors). 2009. OBIS-SEAMAP: mapping marine mammals, birds and turtles. World Wide Web
electronic publication. http://seamap.env.duke.edu, Accessed on January 08, 2009.
- To forward the citation of any publication / report that made use of the data / tools provided by
OBIS-SEAMAP for inclusion in our list of references.
- Not
to hold OBIS-SEAMAP or the original data providers liable for errors in the data. While we have made
every effort to ensure the quality of the database, we
cannot
guarantee the accuracy of these datasets.
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