Mapping Nearshore Nodal Habitat of Juvenile Salmonids within the Hood Canal and Admiralty Inlet
Presentation Abstract
The Port Gamble S’Klallam Tribe partnered with NOAA Fisheries’ Northwest Fisheries Science Center in the spring of 2011 to evaluate the status of the Puget Sound’s nearshore pelagic foodweb. The Tribe’s primary interest in this undertaking was to investigate the hypothesis currently guiding salmon recovery within the nearshore habitats of the Hood Canal and Eastern Strait of Juan de Fuca. The Port Gamble S’Klallam Tribe conducted hydroacoustic surveys in conjunction with surface trawls in 2011 and again in 2012. The hydroacoustic sampling employed the use of a BioSonics DT-X Scientific Echosounder with a 200 kHz split beam digital transducer. The transducer was mounted on a towed body with a side-looking orientation. In 2011 and 2012 hydroacoustic sampling was conducted south from Tala Point to the Duckabush River estuary on the west side of Hood Canal, and north from Seabeck Bay to Foulweather Bluff on the east side of Hood Canal. In 2012, hydroacoustic sampling was also conducted in Port Ludlow Bay, Kilisut Harbor and the Port Townsend Canal. Hydroacoustic data was collected using BioSonics Visual Acquisition software and was analyzed using Myriax Echoview software. The product of the analysis is a geospatial snapshot of single target (fish) densities at ~1000 meter intervals. When plotted, the hydroacoustic data from 2011 and 2012 resulted in uneven density distributions of single target detections. In 2011, the highest densities occurred in Tala Point, Twin Spits, Hannon Point, Port Gamble Bay, Spring Creek, Nordstrom Creek, Unnamed Pocket Estuary (Lat. 47.776373, Long. -122.746410), Broad Spit, Frenchmans Point, and Pleasant Harbor. In 2012, the highest densities occurred in Kilisut Harbor, Port Townsend Canal, Port Ludlow, Tala Point, Twin Spits, Hannon Point, Port Gamble Bay, Spring Creek, Nordstrom Creek, Cougar-Kinman Creek, Big Beef Creek, Zelatched Point, Broad Spit, Frenchmans Point, Point Whitney, Jackson Cove, Turner Creek, and Pleasant Harbor.
Session Title
Session S-09D: Salmon Recovery: Implementation and Progress II
Conference Track
Species and Food Webs
Conference Name
Salish Sea Ecosystem Conference (2014 : Seattle, Wash.)
Document Type
Event
Start Date
1-5-2014 5:00 PM
End Date
1-5-2014 6:30 PM
Location
Room 6C
Genre/Form
conference proceedings; presentations (communicative events)
Contributing Repository
Digital content made available by University Archives, Heritage Resources, Western Libraries, Western Washington University.
Subjects – Topical (LCSH)
Salmon--Habitat--Washington (State)--Hood Canal; Salmon--Habitat--Washington (State)--Admiralty Inlet
Geographic Coverage
Salish Sea (B.C. and Wash.); Hood Canal (Wash.); Admiralty Inlet (Wash.)
Rights
This resource is displayed for educational purposes only and may be subject to U.S. and international copyright laws. For more information about rights or obtaining copies of this resource, please contact University Archives, Heritage Resources, Western Libraries, Western Washington University, Bellingham, WA 98225-9103, USA (360-650-7534; heritage.resources@wwu.edu) and refer to the collection name and identifier. Any materials cited must be attributed to the Salish Sea Ecosystem Conference Records, University Archives, Heritage Resources, Western Libraries, Western Washington University.
Type
Text
Language
English
Format
application/pdf
Mapping Nearshore Nodal Habitat of Juvenile Salmonids within the Hood Canal and Admiralty Inlet
Room 6C
The Port Gamble S’Klallam Tribe partnered with NOAA Fisheries’ Northwest Fisheries Science Center in the spring of 2011 to evaluate the status of the Puget Sound’s nearshore pelagic foodweb. The Tribe’s primary interest in this undertaking was to investigate the hypothesis currently guiding salmon recovery within the nearshore habitats of the Hood Canal and Eastern Strait of Juan de Fuca. The Port Gamble S’Klallam Tribe conducted hydroacoustic surveys in conjunction with surface trawls in 2011 and again in 2012. The hydroacoustic sampling employed the use of a BioSonics DT-X Scientific Echosounder with a 200 kHz split beam digital transducer. The transducer was mounted on a towed body with a side-looking orientation. In 2011 and 2012 hydroacoustic sampling was conducted south from Tala Point to the Duckabush River estuary on the west side of Hood Canal, and north from Seabeck Bay to Foulweather Bluff on the east side of Hood Canal. In 2012, hydroacoustic sampling was also conducted in Port Ludlow Bay, Kilisut Harbor and the Port Townsend Canal. Hydroacoustic data was collected using BioSonics Visual Acquisition software and was analyzed using Myriax Echoview software. The product of the analysis is a geospatial snapshot of single target (fish) densities at ~1000 meter intervals. When plotted, the hydroacoustic data from 2011 and 2012 resulted in uneven density distributions of single target detections. In 2011, the highest densities occurred in Tala Point, Twin Spits, Hannon Point, Port Gamble Bay, Spring Creek, Nordstrom Creek, Unnamed Pocket Estuary (Lat. 47.776373, Long. -122.746410), Broad Spit, Frenchmans Point, and Pleasant Harbor. In 2012, the highest densities occurred in Kilisut Harbor, Port Townsend Canal, Port Ludlow, Tala Point, Twin Spits, Hannon Point, Port Gamble Bay, Spring Creek, Nordstrom Creek, Cougar-Kinman Creek, Big Beef Creek, Zelatched Point, Broad Spit, Frenchmans Point, Point Whitney, Jackson Cove, Turner Creek, and Pleasant Harbor.
