View In:   ArcGIS Online Map Viewer

Name: PWS_Herring_Survey_Photos

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Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>This file documents photos taken during aerial surveys for Pacific herring Clupea pallasii in the Prince William Sound Area, Alaska, 2007-2021. The Prince William Sound Area (Registration Area E) is described in regulation (5 AAC 27.300) as follows: The Prince William Sound Area has as its western boundary a line extending south from Cape Fairfield, as its eastern boundary a line extending south from Cape Suckling and as its southern boundary 59 degrees N. lat. Aerial surveys are generally conducted between late March and mid-May as this brackets the majority of spring spawning events. A single observer was on most surveys prior to 2007 and subsequently two observers have been used on most surveys. Prior to 2008, all observations were marked on paper maps and summarized on paper data sheets. An ESRI ArcPad application was developed and began production use in 2008, using a bluetooth GPS for locating observations. From 2008–2020, two observers generally split the duties as follows: one observer collected data on the ESRI Arcpad application, and the second observer collected data on paper maps and photographed spawn, herring schools, and marine mammal or sea bird observations. In 2021, ArcPad and computer were replaced with ESRI Field Maps on an iPad Pro using external bluetooth GPS and a backup Garmin GPS. A few surveys were only collected on paper maps and digitized later. Photographs of spawn were used to make adjustments to length and class of spawn for most surveys.</SPAN></P></DIV></DIV></DIV>

Service Item Id: e7d9c8bb89c0479f982d45063f2ad85c

Copyright Text: Files were created and modified by Shane Shepherd, Jon Syder, Jim Vansant, Steve Moffitt, and Stormy Haught while employed with the Alaska Department of Fish and Game, Commercial Fisheries Division. Cordova Air Service and Fishing and Flying were chartered for all surveys (2008–2012). The ArcPad application was written by Rob Bochenek with Axiom Consulting & Design with funding from the Exxon Valdez Trustee Council (EVOS). Funding for 2016-2021 work was provided by the Exxon Valdez Trustee Council.

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