July 2013: Project Updates

The pedigree team mapped spawning habitat, sampled otoliths, scales, and genetic tissues on four streams. The Northern Boat (Bear) and the Southern Boat (Surveyor) and our Tenakee based crew sampled the other 28 streams. As of July 29, 17 streams had been sampled at least once and over 2100 otoliths taken. The photos below were taken by Dave Magnus on the first leg of Northern boats journey where they visited Ralph’s Creek, Whitewater, and Chaik and by Laurinda Marcello as the Southern boat visited Rodman & Green’s Creeks.


Our group was split into three teams – one to concentrate on the genetic sampling streams, one to cover primarily the northern end streams, and one to cover primarily the southern end streams. The M/V Bear and M/V Surveyor provided transportation, housing, and bear protection for the Northern and the Southern crews respectively. After a week of training on sampling techniques, first aid, fire arm safety, and electronic data capture the groups headed out to the field on Friday.

hatchery wild crew 2013

Front Row: Tessa Minicucci, Ashley Bolwerk, Laurinda Marcello, Jon Livermore, Bryan Ferguson, Jarrod Yelton. Back Row: Tom Glass, Alix Blake, Ben Adams, Dale Brandenburger, Dave Magnus, Brian Glynn, and Eric Knudsen (PWSSC).


April 2013 Update

Laurinda Marcello, Hatchery/Wild Interaction Project Coordinator presented an overview of the upcoming SE field season to members of the Regional Planning Team today at the NSRAA. Check out her PowerPoint!


March 2013 Update

Four Southeast Alaska streams in the hatchery/wild interaction study were intensively sampled “pedigree” streams.  SSSC crews collected tissue samples each summer from adult chum salmon and then return to spawning sites the following spring to retrieve chum salmon alevin.  Samples from both the parents and offspring were sent to the ADF&G genetics lab for parentage analysis.

This alevin sampling began the following spring and our crews used hydraulic pumps to push salmon alevin out of the stream bed and into a net.  However, quite some time has passed since anyone has used this method of collection in Southeast Alaska.  So, this March several SSSC employees met with colleagues in Juneau.  We tried out various combinations of sampling gear in order to discover what equipment is best suited to the project.

Thanks to ADF&G and USGS for letting us borrow equipment.  We also owe a big thanks to Cameron Plumbing & Heating for helping us fashion a new probe!