22432
AFSC/RACE/GAP/McConnaughey: Pribilof Hydro-2009-From Archiver-Catchability Experiment, Bering Sea 38 KHz Acoustic Sediment Classification
AFSC/RACE/GAP/McConnaughey: Pribilof Hydro-2009-From Archiver-Catchability Experiment, Bering Sea 38 KHz Acoustic Sediment Classification
Data Set
Published / External
32503
AFSC/RACE/GAP/McConnaughey: Pribilof Hydro-2009-From Archiver
Project
Completed
In stock assessment models, catchability is the link between an index of relative abundance from a fishery-independent survey and the modeled population size. For bottom trawl surveys that estimate the population size using swept-area methods, catchability can be estimated because it is largely determined by sampling efficiency (i.e., the proportion of animals within the sampled area that is caught) which can be experimentally measured. However, estimating survey catchability is complicated because trawl efficiency has been shown to vary over a survey area in response to variation in bottom sediment type. Catchability experiments have been conducted on the bottom trawl used for the annual Eastern Bering Sea (EBS) survey, resulting in a survey-wide estimate of catchability for snow crab (Chionoecetes opilio) which, when included in the stock assessment model, produced significant changes in the Allowable Catch Limit. This catchability model accounted for spatial variation in trawl efficiency as a function of crab size, sex, depth, and sediment type. Unfortunately, sediment data over the geographic distribution of snow crab are quite fragmentary due to the remoteness of the area, and direct estimates of sediment properties such as grain size are generally unavailable at the trawl-sampling locations. In some cases, estimates were based on sediments collected over 60 miles away. The option to collect sediment data at all 270 trawl-sampling stations included in the snow crab distribution is prohibitively expensive considering the additional ship time required and the sample processing costs.
This project examined whether indices of bottom type, derived from calibrated ES-60 acoustic data collected at each snow crab sampling station and processed with IMPACT software produced by the Quester Tangent Corporation, are more informative in the snow crab bottom trawl catchability model than measured values of sediment type that were broadly extrapolated. This determination was based solely on the amount of spatial variation in the snow crab efficiency model that is explained by the two kinds of sediment information. While the currently used data are based on a directly measurable attribute of the sediment (mean grain diameter), the acoustically derived index is related to this attribute but also to a variety of previously unmeasured variables affecting the time-dependent shape of the bottom echo.
The purpose of this record is to document the main entities and attributes of the ES-60 acoustic data after processing with IMPACT software produced by the Quester Tangent Corporation.
Loaded by FGDC Metadata Uploader, batch 5179, 10-29-2014 10:15
The following FGDC sections are not currently supported in InPort, but were preserved and will be included in the FGDC export:
- Entity Attribute Information (FGDC:eainfo)
- Spatial Reference Information (FGDC:spref),
- Spatial Data Organization Information (FGDC:spdoinfo)
- Lineage (FGDC:lineage)
Theme
ISO 19115 Topic Category
environment
Theme
ISO 19115 Topic Category
oceans
Theme
QTC
Theme
acoustic sediment classification
Theme
catchability
Spatial
alaska
Spatial
bering sea
Alaska Fisheries Science Center
Seattle
WA
USA
Data Set
None Planned
Map (digital)
see abstract
unknown
unknown
22433
bothvessels_38khz
bothvessels_38khz
Published / External
Completed
An excel spreadsheet that includes latitude, longitude, depth, and three uncorrelated acoustic parameters characterizing the seafloor at the location. Obtained using algorithms in the commercial software IMPACT version 12.
Loaded by FGDC Metadata Uploader, batch 5179, 10-29-2014 10:15
An excel spreadsheet that includes latitude, longitude, depth, and three uncorrelated acoustic parameters characterizing the seafloor at the location. Obtained using algorithms in the commercial software IMPACT version 12.
OBJECTID
Unknown
No
No
Active
Internal feature number.
Sequential unique whole numbers that are automatically generated.
Shape
Unknown
No
No
Active
Feature geometry.
Coordinates defining the features.
Station
Unknown
No
No
Active
AFSC EBS standard trawl station ID; n=277 where Chionoecetes opilio catch in kg >0
A-02, A-03, A-04, A-05, B-01, B-02, B-03, B-04, B-05, B-06, B-07, B-08, C-01, C-02, C-03, C-04, C-05, C-06, C-07, C-08, C-09, D-01, D-02, D-03, D-04, D-05, D-06, D-07, D-08, D-09, D-10, D-18, E-01, E-02, E-03, E-04, E-05, E-06, E-07, E-08, E-09, E-10, E-11, E-18, E-19, E-21, E-22, F-01, F-02, F-03, F-04, F-05, F-06, , F-07, F-08, F-09, F-11, F-18, F-19, F-20, F-21, F-22, F-23, ,F-24, G-01, G-02, G-03, G-05, G-06, G-07, G-08, G-09, G-10, G-12, G-18, G-19, G-20, G-21, G-22, G-23, G-24, G-25, GF1918, GF2019, GF2120, GF2221, H-01, H-02, H-03, H-04, H-05, H-06, H-07, H-08, H-12, H-14, H-18, H-19, H-20, H-21, H-23, H-24, H-25, H-26, HG1918, HG2019, HG2221, I-01, I-02, I-03, I-04, I-05, I-12, I-18, I-19, I-20, I-21, I-22, I-23, I-24, I-25, IH1918, IH2019, IH2120, IH2221, J-01, J-02, J-03, J-04, J-18, J-19, J-20, J-21, J-22, J-23, J-24, J-25, J-26, JI1918, JI2019, JI2221, K-01, K-02, K-03, K-18, K-19, K-20, K-21, K-22, K-23, K-25, K-26, L-01, L-18, L-19, L-20, L-21, L-22, L-23, L-24, L-25, L-26, L-28, L-29, L-31, M-18, M-19, M-20, M-21, M-22, M-23, M-24, M-25, M-26, M-27, M-29, M-31, M-32, N-18, N-19, N-20, N-21, N-22, N-23, N-24, N-25, N-26, N-27, N-28, N-29, N-30, N-31, O-19, O-20, O-21, O-22, O-23, O-24, O-25, O-26, O-27, O-28, O-29, O-30, O-31, ON2524, ON2625, P-18, P-19, P-20, P-22, P-23, P-24, P-25, P-26, P-27, P-28, P-29, P-30, P-31, P-32, PO2423, PO2524, PO2625, PO2726, Q-18, Q-19, Q-20, Q-22, Q-23, Q-25, Q-26, Q-27, Q-28, Q-29, Q-30, Q-31, QP2423, QP2524, QP2625, QP2726, R-22, R-23, R-24, R-25, R-26, R-27, R-28, R-29, R-30, R-31, R-32, S-22, S-23, S-24, S-25, S-26, S-27, S-28, S-29, S-30, S-31, T-25, T-26, T-27, T-28, T-29, T-30, U-25, U-26, U-27, U-28, U-29, V-25, V-26, V-27, V-28
Date_
NUMBER
No
No
Active
Date of Survey (UTC) (yyyymmdd)
20090603 - 20090730
Time_
NUMBER
No
No
Active
Time of Survey (UTC) (hh:mm:ss.sss)
00:00:00.001 - 23:59:59.845
Long_DD
NUMBER
No
No
Active
Longitude decimal degree position (-ddd.dd)
-178.1755817 - -159.6566571
Lat_DD
NUMBER
No
No
Active
Latitude decimal degree position (dd.dd)
54.83207167 - 62.02506318
Depth_m
NUMBER
No
No
Active
Depth in meters (mm.mm)
-174.99 - -34.25
Q1
NUMBER
No
No
Active
Q1 feature space value produced from Impact.
-4.02228324 - -0.08293525
Q2
NUMBER
No
No
Active
Q2 feature space value produced from Impact.
-0.30795984 - 1.38610227
Q3
NUMBER
No
No
Active
Q3 feature space value produced from Impact.
-0.94009164 - 1.32528993
FFVname
Unknown
No
No
Active
FFV file name
name given to the Full Feature Vector file generated by processing a raw ES60 file with IMPACT software.
FFVRecord
Unknown
No
No
Active
FFV record number within an FFV
sequential number for the records in each FFV file
Data Steward
2015
Person
McConnaughey, Bob
bob.mcconnaughey@noaa.gov
Distributor
2015
Organization
Alaska Fisheries Science Center
AFSC
afsc.webmaster@noaa.gov
7600 Sand Point Way N.E., Building 4
Seattle
WA
98115
USA
(206) 526-4000
(206) 526-4004
https://www.fisheries.noaa.gov/about/alaska-fisheries-science-center
AKFSC Home Page
Online Resource
0700-1700 Pacific Time
Metadata Contact
2014-10-29
Person
Intelmann, Steve
steve.intelmann@noaa.gov
7600 Sand Point Way N.E., Building 4
Seattle
WA
98115
USA
(206) 526-4157
(206) 526-6723
Originator
2014-10-29
Person
McConnaughey, Bob
bob.mcconnaughey@noaa.gov
Point of Contact
2014-10-29
Person
Intelmann, Steve
steve.intelmann@noaa.gov
7600 Sand Point Way N.E., Building 4
Seattle
WA
98115
USA
(206) 526-4157
(206) 526-6723
Unknown
-178.175582
-159.656657
62.025063
54.832072
Range
2009-06-03
2009-07-30
Unclassified
unknown
None
None
The United States Government shall not be held liable for improper or incorrect use of data described and/or contained herein. These data and related graphics are not legal documents and are not intended to be used as such. The Alaska Fisheries Science Center gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of these data. Spatial information may not meet National Map Accuracy Standards. The information contained in these data is dynamic and may change over time. Original data were compiled from various sources. The data are not better than the original sources from which they were derived. It is the responsibility of the data user to use the data appropriately and consistent within the limitations of geospatial data in general and these data in particular. It is strongly recommended that these data are directly acquired from an Alaska Fisheries Science Center server and not indirectly through other sources which may have changed the data in some way. Although these data have been used (processed) successfully on a computer system at the Alaska Fisheries Science Center, no warranty expressed or implied is made regarding the utility of the data on another system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data.
https://www.ncei.noaa.gov
Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.2.2.3552;
The commercial software we used to process the ES60 data is IMPACT12.3.2. The processing algorithms used in the software are based on the following reference: Biffard, B. R. 2011. Seabed remote sensing by single-beam echosounder: models, methods and applications. Ph.D. dissertation. School of Earth and Ocean Sciences, University of Victoria. 356 p.
Only 38 kHz data were processed from the R/V Arcturus and R/V Aldeberan 2009 Bering Sea Surveys.
Data were collected over short period of time - one summer, using a calibrated instrument with consistent settings.
unknown
No
Unknown
No
Yes
Yes
Unknown
No delay
NCEI-MD
unknown
IT Security and Contingency Plan for the system establishes procedures and applies to the functions, operations, and resources necessary to recover and restore data as hosted in the Western Regional Support Center in Seattle, Washington, following a disruption.
unknown
22433
Entity
bothvessels_38khz
gov.noaa.nmfs.inport:22432
Nancy Roberson
2014-10-29T10:15:45
SysAdmin InPortAdmin
2024-01-15T12:08:04
2019-05-31
Alaska Fisheries Science Center
AFSC
7600 Sand Point Way N.E., Building 4
Seattle
WA
98115
USA
http://www.afsc.noaa.gov
0700-1700 Pacific Time
1001
Public
No
2019-05-31
1 Year
2020-05-31
Vector
Entity point
246812
8.983152841195215e-009
8.983152841195215e-009
Decimal degrees
D WGS 1984
WGS 1984
6378137.0
298.257223563
No correction
0.01
meters
Attribute values
bothvessels_38khz
An excel spreadsheet that includes latitude, longitude, depth, and three uncorrelated acoustic parameters characterizing the seafloor at the location. Obtained using algorithms in the commercial software IMPACT version 12.
Bob McConnaughey
OBJECTID
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
Shape
Feature geometry.
Esri
Coordinates defining the features.
Station
AFSC EBS standard trawl station ID; n=277 where Chionoecetes opilio catch in kg >0
Bob McConnaughey
A-02, A-03, A-04, A-05, B-01, B-02, B-03, B-04, B-05, B-06, B-07, B-08, C-01, C-02, C-03, C-04, C-05, C-06, C-07, C-08, C-09, D-01, D-02, D-03, D-04, D-05, D-06, D-07, D-08, D-09, D-10, D-18, E-01, E-02, E-03, E-04, E-05, E-06, E-07, E-08, E-09, E-10, E-11, E-18, E-19, E-21, E-22, F-01, F-02, F-03, F-04, F-05, F-06, , F-07, F-08, F-09, F-11, F-18, F-19, F-20, F-21, F-22, F-23, ,F-24, G-01, G-02, G-03, G-05, G-06, G-07, G-08, G-09, G-10, G-12, G-18, G-19, G-20, G-21, G-22, G-23, G-24, G-25, GF1918, GF2019, GF2120, GF2221, H-01, H-02, H-03, H-04, H-05, H-06, H-07, H-08, H-12, H-14, H-18, H-19, H-20, H-21, H-23, H-24, H-25, H-26, HG1918, HG2019, HG2221, I-01, I-02, I-03, I-04, I-05, I-12, I-18, I-19, I-20, I-21, I-22, I-23, I-24, I-25, IH1918, IH2019, IH2120, IH2221, J-01, J-02, J-03, J-04, J-18, J-19, J-20, J-21, J-22, J-23, J-24, J-25, J-26, JI1918, JI2019, JI2221, K-01, K-02, K-03, K-18, K-19, K-20, K-21, K-22, K-23, K-25, K-26, L-01, L-18, L-19, L-20, L-21, L-22, L-23, L-24, L-25, L-26, L-28, L-29, L-31, M-18, M-19, M-20, M-21, M-22, M-23, M-24, M-25, M-26, M-27, M-29, M-31, M-32, N-18, N-19, N-20, N-21, N-22, N-23, N-24, N-25, N-26, N-27, N-28, N-29, N-30, N-31, O-19, O-20, O-21, O-22, O-23, O-24, O-25, O-26, O-27, O-28, O-29, O-30, O-31, ON2524, ON2625, P-18, P-19, P-20, P-22, P-23, P-24, P-25, P-26, P-27, P-28, P-29, P-30, P-31, P-32, PO2423, PO2524, PO2625, PO2726, Q-18, Q-19, Q-20, Q-22, Q-23, Q-25, Q-26, Q-27, Q-28, Q-29, Q-30, Q-31, QP2423, QP2524, QP2625, QP2726, R-22, R-23, R-24, R-25, R-26, R-27, R-28, R-29, R-30, R-31, R-32, S-22, S-23, S-24, S-25, S-26, S-27, S-28, S-29, S-30, S-31, T-25, T-26, T-27, T-28, T-29, T-30, U-25, U-26, U-27, U-28, U-29, V-25, V-26, V-27, V-28
Date_
Date of Survey (UTC) (yyyymmdd)
Bob McConnaughey
20090603
20090730
Time_
Time of Survey (UTC) (hh:mm:ss.sss)
Bob McConnaughey
00:00:00.001
23:59:59.845
Long_DD
Longitude decimal degree position (-ddd.dd)
Bob McConnaughey
-178.1755817
-159.6566571
Lat_DD
Latitude decimal degree position (dd.dd)
Bob McConnaughey
54.83207167
62.02506318
Depth_m
Depth in meters (mm.mm)
Bob McConnaughey
-174.99
-34.25
Q1
Q1 feature space value produced from Impact.
Impact software
-4.02228324
-0.08293525
Q2
Q2 feature space value produced from Impact.
Impact software
-0.30795984
1.38610227
Q3
Q3 feature space value produced from Impact.
Impact software
-0.94009164
1.32528993
FFVname
FFV file name
Impact software
name given to the Full Feature Vector file generated by processing a raw ES60 file with IMPACT software.
FFVRecord
FFV record number within an FFV
Impact software
sequential number for the records in each FFV file