Region 6 (Vashon Island area) Dungeness crab survey
Presentation Abstract
Results of the first ever comprehensive Dungeness crab (Metacarcinus magister) survey in region 6 (north end of Vashon Island south to Tacoma Narrows bridge) conducted by the Puyallup Tribe are presented. 8 locations in region 6 were used as index stations. 9 commercial style Dungeness traps were set at each station stratified by depth: 3 traps at 50’, 3 traps at 100’, and 3 traps at 150’. Each index station was surveyed 3 different times in 2013. Traps were baited and left in the water for 24 hours. Dungeness crab information collected included size, sex, and shell condition. Bycatch was also recorded. Catches varied, sometimes greatly, between index stations and within the same index station depending on the time of year or depth. A decrease in the number of sunstars (Pycnopodia helianthoides) in the catch was recorded near the same time that widespread sunstar mortalities were reported in the Puget Sound.
Session Title
Session S-09E: Marine, Freshwater and Terrestrial Species: Threats and Conservation
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)
Dungeness crab--Monitoring--Washington (State)--Vashon Island Region
Geographic Coverage
Salish Sea (B.C. and Wash.); Vashon Island Region (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
Region 6 (Vashon Island area) Dungeness crab survey
Room 6C
Results of the first ever comprehensive Dungeness crab (Metacarcinus magister) survey in region 6 (north end of Vashon Island south to Tacoma Narrows bridge) conducted by the Puyallup Tribe are presented. 8 locations in region 6 were used as index stations. 9 commercial style Dungeness traps were set at each station stratified by depth: 3 traps at 50’, 3 traps at 100’, and 3 traps at 150’. Each index station was surveyed 3 different times in 2013. Traps were baited and left in the water for 24 hours. Dungeness crab information collected included size, sex, and shell condition. Bycatch was also recorded. Catches varied, sometimes greatly, between index stations and within the same index station depending on the time of year or depth. A decrease in the number of sunstars (Pycnopodia helianthoides) in the catch was recorded near the same time that widespread sunstar mortalities were reported in the Puget Sound.
