25151
AFSC/ABL: Rockfish Habitat Dive Video Transects
AFSC/ABL: Rockfish Habitat Dive Video Transects
Data Set
Published / External
12324
Auke Bay Laboratories
Project
Completed
Many species of commercially valuable rockfish (Sebastes spp.) inhabit waters on the outer continental shelf in the Gulf of Alaska typically between depths of 100-300m. The benthic habitat requirements and spatial distribution of these rockfish species is relatively unknown. Information regarding benthic habitat use would improve current stock assessments and provide baseline information for an ecosystem approach to management. Several study areas in the Gulf of Alaska have recently been mapped with high resolution multibeam bathymetry and backscatter to generate detailed benthic habitat maps. Large populations of rockfish have been surveyed and harvested within these mapped areas. The NMFS MESA group conducted two submersible observation surveys in summer 2005 on three of these mapped areas, Albatross Bank, Hazy Islands, and Cape Ommaney. The objectives of these surveys were to collect information on rockfish habitat interactions and generate density estimates by habitat. Forty dive transects were completed on the mapped sites using the Delta two-person occupied submersible. We identified numerous gravid females and observed schooling behavior of several species over particular benthic habitats. Density estimates of rockfish using strip and line of sight methodologies are being determined by substrate and invertebrate habitat classification. We identify habitat types with high densities of rockfish species and describe differences between estimation methods.
This dataset contains all data collected from the videos during rockfish habitat sampling.
Loaded by FGDC Metadata Uploader, batch 6091, 05-27-2015 20:38
The following FGDC sections are not currently supported in InPort, but were preserved and will be included in the FGDC export:
- Taxonomy (FGDC:taxonomy)
Theme
Error
ORA-30625: method dispatch on NULL SELF argument is disallowed
Auke Bay Laboratories
Juneau
AK
US
Data Set
As Needed
maps and data
The user is responsible for the results of any application of this data for other than its intended purpose.
unknown
unknown
unknown
Data Steward
2015-05-27
Person
Shotwell, Kalei
kalei.shotwell@noaa.gov
Distributor
2015-05-27
Person
Shotwell, Kalei
kalei.shotwell@noaa.gov
Metadata Contact
2015-05-27
Person
MC, Metadata Coordinators
AFSC.metadata@noaa.gov
Originator
2015-05-27
Person
Shotwell, Kalei
kalei.shotwell@noaa.gov
Point of Contact
2015-05-27
Person
Shotwell, Kalei
kalei.shotwell@noaa.gov
Ground Condition
-153.59
-133.48
56.87
55.58
Albatross Bank and Cape Ommaney/Hazy Islands
Range
2005-06-22
2005-08-01
Unclassified
N/A
The data set is still being analyzed and will not be available for distribution until it has been finalized and all QA/QC practices have been performed. Contact the Data Point of Contact for estimated time of release.
User must read and fully comprehend the metadata prior to use. User must acknowledge the Originator when using the data set as a source. User must share data products developed using the source data set with the Originator. Data should not be used beyond the limits of the source scale.
https://www.ncei.noaa.gov/
NCEI to be determined
None
We have both strip and line of sight counts estimated for the majority of dives. Comparisons between strip counts and line of sight to the strip length will be conducted as quality control. Additionally several data analysts have overlapping dives processed and data was compared between these dives.
Contact the dataset POC for full QA/QC methodology
Yes
Unknown
Yes
Yes
yes
unknown
no delay
To Be Determined
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.
1
Contact POC for methodology
gov.noaa.nmfs.inport:25151
Emily Fergusson
2015-05-27T20:26:23
SysAdmin InPortAdmin
2022-08-09T17:11:07
2016-05-18
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
2016-05-18
1 Year
2017-05-18
None
collection
multiple species
invertebrates
Empire
Biovitae
Carbon-based lifeforms
Kingdom
Animalia
Phylum
Chordata
Subphylum
Vertebrata
Superclass
Osteichthyes
Class
Actinopterygii
Subclass
Neopterygii
Infraclass
Teleostei
Superorder
Acanthopterygii
Order
Scorpaeniformes
Suborder
Scorpaenoidei
Family
Scorpaenidae
Genus
Sebastes