64349
Predictive Models of Cetacean Densities in the California Current Ecosystem, 2020b
Data Set
Published / External
12695
NOAA Cetaceans and Sound Project (CetSound)
Project
Completed
2020-12-01
To develop improved species distribution models (SDMs) and to update US West Coast cetacean stock abundance estimates, sighting data from NOAA’s Southwest Fisheries Science Center 2018 California Current Ecosystem Survey were combined with previous line-transect survey data collected within the study area to create a robust modeling database spanning more than 25 years (1991–2018). Habitat models were developed based on previously established methods that allow for the incorporation of segment-specific estimates of detection probability and included dynamic covariates from an ocean model calibrated to the California Current Ecosystem study area. In addition, recently-developed techniques for deriving more comprehensive estimates of uncertainty in SDM predictions were used to provide variance estimates for the model-based abundance estimates. SDMs were developed for short-beaked common dolphin (Delphinus delphis delphis), long-beaked common dolphin (Delphinus delphis bairdii), northern right whale dolphin (Lissodelphis borealis), Pacific white-sided dolphin (Lagenorhynchus obliquidens), striped dolphin (Stenella coeruleoalba), common bottlenose dolphin (Tursiops truncatus), Risso’s dolphin (Grampus griseus), Dall’s porpoise (Phocoenoides dalli), sperm whale (Physeter macrocephalus), blue whale (Balaenoptera musculus), fin whale (B. physalus), humpback whale (Megaptera novaeangliae), Baird’s beaked whale (Berardius bairdii), and a “small beaked whale guild” that included Mesoplodonts (Mesoplodon spp.) and Cuvier’s beaked whale (Ziphius cavirostris). Sample sizes were also sufficient to develop the first model-based density estimates for minke whale (B. acutorostrata) in this study area.
These models have been used by the Navy and others to assess potential impacts on cetaceans in compliance with U.S. regulations such as the Endangered Species Act and Marine Mammal Protection Act, which require species-specific assessments of the number of animals potentially affected by their activities.
Theme
ISO 19115 Topic Category
biota
Theme
ISO 19115 Topic Category
oceans
Theme
Balaenoptera acutostrata
Theme
Balaenoptera musculus
Theme
Balaenoptera physalus
Theme
Berardius bairdii
Theme
California Current Ecosystem
Theme
Delphinus delphis bairdii
Theme
Delphinus delphis delphis
Theme
Grampus griseus
Theme
Lagenorhynchus obliquidens
Theme
Lissodelphis borealis
Theme
Megaptera novaeangliae
Theme
Phocoenoides
Theme
Physeter macrocephalus
Theme
Stenella coeruleoalba
Theme
Tursiops truncatus
Theme
cetacean
Theme
dalli
Theme
density
Theme
distribution
Theme
small beaked whales
Spatial
California
Spatial
Eastern Pacific Ocean
Spatial
Oregon
Spatial
Washington
Data Set
Irregular
Map (digital)
CREDIT: Elizabeth A. Becker, Karin A. Forney, David L. Miller, Paul C. Fiedler, Jay Barlow, and Jeff E. Moore. 2020. Habitat-based density estimates for cetaceans in the California Current Ecosystem based on 1991-2018 survey data, U.S. Department of Commerce, NOAA Technical Memorandum NMFS-SWFSC-638. https://doi.org/10.25923/3znq-yx13 ORIGINATORS: Southwest Fisheries Science Center;
64350
Attributes for all species
Published / External
GIS File
Yes
Cells ranging from approximately 10km x 11km in the south to 7km x 11km in the north, representing the density of species; Source: NOAA Fisheries Southwest Fisheries Science Center
1
OBJECTID
n/a
No
No
Active
Internal feature number.; Source: ESRI
None
2
SHAPE
n/a
No
No
Active
Feature geometry.; Source: ESRI
None
3
UID
n/a
No
No
Active
Supposed to be a unique ID Field for species per study area, not used.; Source: NOAA Southwest Fisheries Science Center
Not used
4
SPECIES
n/a
No
No
Active
Species common name; Source: NOAA Fisheries Southwest Fisheries Science Center
Value assigned by staff
5
SPECIES_2
n/a
No
No
Active
Species scientific name; Source: NOAA Fisheries Southwest Fisheries Science Center
Value assigned by staff
6
MONTH_NUMB
n/a
No
No
Active
Month number 01-12
Value of NULL; This field NOT USED because densities are averaged over multiple months.; Source: NOAA Fisheries Southwest Fisheries Science Center
Value of NULL; This field NOT USED because densities are averaged over multiple months.
7
MONTH_NAME
n/a
No
No
Active
Month name, e.g. January
Empty NOT USED because densities are averaged over multiple months.; Source: NOAA Fisheries Southwest Fisheries Science Center
Empty NOT USED because densities are averaged over multiple months.
8
STUDY
n/a
No
No
Active
Source/study information; Source: NOAA Fisheries Southwest Fisheries Science Center
Single value
9
STRATUM
n/a
No
No
Active
Stratum name
Always CCE (California Current Ecosystem) for this series; Source: NOAA Fisheries Southwest Fisheries Science Center
Always CCE (California Current Ecosystem) for this series
10
MODEL_TYPE
n/a
No
No
Active
Identifies what type of model was used to calculate density. ; Source: NOAA Fisheries Southwest Fisheries Science Center
Can be "habitat-based density model," "HBDM pro rated by ratio of win spr to sum fall" (Humpback whale winter spring), or "Telemetry based habitat model" (Blue whale winter spring)
11
DENSITY
n/a
No
No
Active
Density value in animals/km^2; Source: From model
0 to 9999
12
UNCERTAINTY
n/a
No
No
Active
Numerical uncertainty value (CV). When the models for a species/guild do not have dynamic predictors, uncertainty info is not available. In this case the field has a value of -99999.; Source: From model
0 to 9999
13
UNCER_QUAL
n/a
No
No
Active
Qualitative uncertainty value (description of uncertainty when numerical value is not present or to describe additional qualitative information. Duke used this column to further define the type of model that was used which called back to other documentation that described how the model was run and how it performed) Elizabeth Becker should be providing this info; Source: NOAA Fisheries Southwest Fisheries Science Center
Not used; value always empty
14
MODEL_VERS
n/a
No
No
Active
Duke created field for tracking Duke models used as input- not needed for NAEMO modeling but may be used for your own internal model tracking.; Source: Varies
Not used; value always NULL.
15
NAEMO_VERS
n/a
No
No
Active
Identifies version of data - NAEMO specific. Not used.; Source: NOAA Fisheries Southwest Fisheries Science Center
Not used. Allways NULL.
16
SEASON
n/a
No
No
Active
To be populated to capture season information. Spring, Summer, Fall, Winter. For data that span multiple seasons Summer-Fall or Winter-Spring may be used.; Source: NOAA Fisheries Southwest Fisheries Science Center
Spring, Summer, Fall, Winter or Summer-Fall, Winter-Spring
17
AREA_SQKM
n/a
No
No
Active
Area in square kilometers. Features must be projected, calculated and then reprojected to WGS84. Projection must be documented in metadata; Source: Calculated from shapefile
0.000002 to 100
18
ABUNDANCE
n/a
No
No
Active
Density * area of cell in km^2; Source: Calculated
0 to 400
19
Shape_Length
n/a
No
No
Active
Length of feature in internal units.; Source: Esri
Positive real numbers that are automatically generated.
20
Shape_Area
n/a
No
No
Active
Area of feature in internal units squared.; Source: Esri
Positive real numbers that are automatically generated.
Data Steward
2018-06
Person
Haverland, Timothy J
tim.haverland@noaa.gov
1315 East West Hwy
Silver Spring
MD
20910-3282
USA
301-427-8137
301-713-4137
Distributor
2018-06
Organization
NMFS Office of Science and Technology
OST
1315 East West Highway
Silver Spring
MD
20910
USA
301-427-8100
http://www.st.nmfs.noaa.gov/
0700 - 1800 EST/EDT
Metadata Contact
2018-06
Person
Haverland, Timothy J
tim.haverland@noaa.gov
1315 East West Hwy
Silver Spring
MD
20910-3282
USA
301-427-8137
301-713-4137
Point of Contact
2018-06
Person
Forney, Karin A
karin.forney@noaa.gov
7544 Sandholdt Rd
Moss Landing
CA
95039
USA
831-771-4155
(858) 546-7003
M-F 8:00 - 16:30
Publication Date
California, Oregon, Washington, Eastern Pacific Ocean
-131
-117.097556
48.5061
30.05
Range
1991-07-01T00:00:00+00:00
1991-11-30T00:00:00+00:00
Range
1993-07-01T00:00:00+00:00
1993-11-30T00:00:00+00:00
Range
1996-07-01T00:00:00+00:00
1996-11-30T00:00:00+00:00
Range
2001-07-01T00:00:00+00:00
2001-11-30T00:00:00+00:00
Range
2005-07-01T00:00:00+00:00
2005-11-30T00:00:00+00:00
Range
2008-07-01T00:00:00+00:00
2008-11-30T00:00:00+00:00
Range
2009-07-01T00:00:00+00:00
2009-11-30T00:00:00+00:00
Range
2014-07-01T00:00:00+00:00
2014-11-30T00:00:00+00:00
Range
2018-07-01T00:00:00+00:00
2018-11-30T00:00:00+00:00
Geographic 2D
EPSG:4326
WGS 84
World Geodetic System 1984
WGS 84
6378137
298.257223563
1
Geodetic Lattitude
Lat
degree
north
2
Geodetic Longitude
Lon
degree
east
Unclassified
*** No Warranty*** The user assumes the entire risk related to its use of these data. NMFS is providing these data "as is," and NMFS disclaims any and all warranties, whether express or implied, including (without limitation) any implied warranties of merchantability or fitness for a particular purpose. No warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. It is strongly recommended that careful attention be paid to the contents of the metadata file associated with these data to evaluate dataset limitations, restrictions or intended use. In no event will NMFS be liable to you or to any third party for any direct, indirect, incidental, consequential, special or exemplary damages or lost profit resulting from any use or misuse of these data.
https://noaa.maps.arcgis.com/home/item.html?id=566b4ad31f1d40eeb65b8cf3a4f087ca
2018-06
Organization
NMFS Office of Science and Technology
Data access URL
File Geodatabase Feature Class
ESRI File Geodatabase
Zip
Microsoft Windows 10 Version 10.0 (Build 18363) ; Esri ArcGIS 12.6.3.24783
The entire study area was divided into 0.1° cells (ranging from approximately 10km x 11km in the south to 7km x 11km in the north), and density, area, and abundance calculated for each.
No measure of horizontal quality was performed.
Model outputs
Model outputs
1
Outputs from models were assigned to cells in the study area.
2020-12-01T00:00:00
Organization
Southwest Fisheries Science Center
SWFSC
8901 La Jolla Shores Dr.
La Jolla
CA
92037
USA
(858)546-7000
http://swfsc.noaa.gov/
8:00-16:30
64350
Entity
Attributes for all species
gov.noaa.nmfs.inport:64349
Timothy Haverland
2021-03-09T21:17:25
SysAdmin InPortAdmin
2023-10-17T16:12:34
2021-03-10
NMFS Office of Science and Technology
OST
1315 East West Highway
Silver Spring
MD
20910
USA
301-427-8100
http://www.st.nmfs.noaa.gov/
0700 - 1800 EST/EDT
1001
Public
No
2021-03-10
1 Year
2022-03-10