gov.noaa.nmfs.inport:27709 eng UTF8 dataset Alaska Fisheries Science Center 7600 Sand Point Way N.E., Building 4 Seattle WA 98115 USA https://www.afsc.noaa.gov WWW:LINK-1.0-http--link Website Website for this organization information 0700-1700 Pacific Time resourceProvider 2025-05-15T19:15:48 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) AFSC/ABL: Lynn Canal Echo-Integrated Trawl Surveys, 2001-2004 AFSC/ABL: Lynn Canal Echo-Integrated Trawl Surveys, 2001-2004 publication NOAA/NMFS/EDM 27709 https://www.fisheries.noaa.gov/inport/item/27709 WWW:LINK-1.0-http--link Full Metadata Record View the complete metadata record on InPort for more information about this dataset. information Csepp, Dave dave.csepp@noaa.gov originator imageDigital The acoustic trawl database for Lynn Canals echo-trawl survey was conducted from 2001 to 2004 throughout southern Lynn Canal in southeast Alaska. Acoustic surveys were conducted one day per month and trawl surveys were conducted every 3 months to verify acoustic signals and collect biological data. This study was conducted to study the relationship between Steller sea lions (Eumetopias jubatus) and their prey. Additional acoustic surveys were conducted throughout the winter of 2004 to 2005 on 6 consecutive days once a month in order to study forage fish hots spots. Acoustic equipment were calibrated before every trawl survey. Acoustic data were analyzed by the same qualified acoustician throughout the surveys duration with calibrations entered into the analytical software after each calibration. Trawls were used to identify the fish species associated with a specific acoustic signal and to get length weight data per species. Trawl data were also used to enumerate and identify all nekton found within the study area and to generate length frequencies, species composition and abundance by species and season. The acoustic data was use to generate biomass estimates for Pacific herring and walleye pollock. Longlines were deployed to better identify and enumerate the benthic species not usually caught in pelagic trawls. This dataset contains the data from the echo-integrated trawl surveys from 2001 to 2004. completed Csepp, Dave dave.csepp@noaa.gov pointOfContact Csepp, Dave dave.csepp@noaa.gov custodian notPlanned herring walleye pollock theme ITIS Alaska place Geographic Names Information System ecology forage fish seasonality theme DOC/NOAA/NMFS/AFSC > Alaska Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2017-04-24 publication 8.5 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Auke Bay Laboratories project InPort otherRestrictions Cite As: Alaska Fisheries Science Center, [Date of Access]: AFSC/ABL: Lynn Canal Echo-Integrated Trawl Surveys, 2001-2004 [Data Date Range], https://www.fisheries.noaa.gov/inport/item/27709. NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose. otherRestrictions Access Constraints: There are no legal restrictions on access to the data. They reside in public domain and can be freely distributed. otherRestrictions Use Constraints: User must read and fully comprehend the metadata prior to use. Data should not be used beyond the limits of the source scale. Acknowledgement of NOAA, as the source from which these data were obtained, in any publications and/or other representations of these data is suggested. otherRestrictions Distribution Liability: The user is responsible for the results of any application of this data for other than its intended purpose. unclassified NOAA Data Management Plan (DMP) NOAA/NMFS/EDM 27709 https://www.fisheries.noaa.gov/inportserve/waf/noaa/nmfs/afsc/dmp/pdf/27709.pdf WWW:LINK-1.0-http--link NOAA Data Management Plan (DMP) NOAA Data Management Plan for this record on InPort. information crossReference eng; US biota Microsoft Excel Spreadsheet -135.4189 -134.7697 58.4156 58.5819 Alaska, Southeast Alaska, Lynn Canal, Favorite Channel | Currentness: Ground Condition 2001-06-01 2004-05-01 dataset Completeness Report None Conceptual Consistency Tests were regularly done on acoustic gear as cited in publication with calibrations and constant noise and signal evaluation throughout all surveys. Data was regularly checked during data entry, while making spreadsheets, master sheets, sorting, analyzing data and making plots and tables. When everything was done we rechecked everything for consistency, completeness and accuracy. See publications for methodology