scholarly journals Stock Assessment of Columbia River Anadromous Salmonids : Final Report, Volume II, Steelhead Stock Summaries, Stock Transfer Guidelines, Information Needs.

1985 ◽  
Author(s):  
Philip J. Howell
Keyword(s):  
Information Needs ◽  
Stock Assessment ◽  
Columbia River ◽  
Final Report

scholarly journals Stock Identification of Columbia River Chinook Salmon and Steelhead Trout, 1986 Final Report.

1986 ◽  
Author(s):  
Carl B. Schreck ◽  
Hiran W. Li ◽  
Randy C. Hjort
Keyword(s):  
Chinook Salmon ◽  
Columbia River ◽  
Final Report ◽  
Stock Identification ◽  
Steelhead Trout

scholarly journals Lower Columbia River and Estuary Ecosystem Restoration Program Reference Site Study: 2011 Restoration Analysis - FINAL REPORT

2012 ◽  
Author(s):  
Amy B. Borde ◽  
Valerie I. Cullinan ◽  
Heida L. Diefenderfer ◽  
Ronald M. Thom ◽  
Ronald M. Kaufmann ◽  
...  
Keyword(s):  
Reference Site ◽  
Ecosystem Restoration ◽  
Columbia River ◽  
Final Report

scholarly journals Scottish Inshore Fisheries Integrated Data System (SIFIDS): Work package (3) final report development of a novel, automated mechanism for the collection of scallop stock data

2019 ◽  
Author(s):  
C Richards Bates ◽  
◽  
Melanie Chocholek ◽  
Clive Fox ◽  
John Howe ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Stock Assessment ◽  
Ground Truth ◽  
Wide Area ◽  
Final Report ◽  
Data Systems ◽  
Executive Summary ◽  
Automated Processing ◽  
Acoustic Technologies

[Extract from Executive Summary] This project, aimed at the development of a novel, automated mechanism for the collection of scallop stock data was a sub-part of the Scottish Inshore Fisheries Integrated Data Systems (SIFIDS) project. The project reviewed the state-of-the-art remote sensing (geophysical and camera-based) technologies available from industry and compared these to inexpensive, off-the -shelf equipment. Sea trials were conducted on scallop dredge sites and also hand-dived scallop sites. Data was analysed manually, and tests conducted with automated processing methods. It was concluded that geophysical acoustic technologies cannot presently detect individual scallop but the remote sensing technologies can be used for broad scale habitat mapping of scallop harvest areas. Further, the techniques allow for monitoring these areas in terms of scallop dredging impact. Camera (video and still) imagery is effective for scallop count and provide data that compares favourably with diver-based ground truth information for recording scallop density. Deployment of cameras is possible through inexpensive drop-down camera frames which it is recommended be deployed on a wide area basis for further trials. In addition, implementation of a ‘citizen science’ approach to wide area recording is suggested to increase the stock assessment across the widest possible variety of seafloor types around Scotland. Armed with such data a full, statistical analysis could be completed and data used with automated processing routines for future long-term monitoring of stock.

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