Your browser does not support the most current secure communications protocol. The World Aquaculture Society is committed to the security of your private information. In order to accept credit card data on this site we are recquired to be in compliance with Payment Card Industry (PCI) standards. Current PCI standards will not allow us to accept traffic from browsers that do not support TLS 1.2 after June 30, 2018. We are alerting you to the important need to update your browser. Changes to our web server made on or before June 30, 2018 will make was.org unavailable with the browser you are currently using. This will specifically affect all versions of Windows older than Windows 7 and all versions of Microsoft Internet Explorer older than version 11. All versions of the default Android browser on Android systems will also be affected by this change. We encourage you to upgrade soon. [More..]

1221

SHELLGIS: A GIS SOFTWARE TOOL FOR PREDICTING GROWTH AND ENVIRONMENTAL IMPACTS OF BIVALVE SHELLFISH ACCORDING TO SITE SELECTION AND CULTURE PRACTICE

Carter R. Newell*, A.J.S. Hawkins, K.P. Morris, J.E. Richardson, C.V. Davis, T.S. Getchis

Maine Shellfish R+D, 7 Creek Lane, Damariscotta, Maine U.S.A. 04543 musselsandoysters@gmail.com
Hydrodynamic flow models and shellfish growth models are important elements of ecosystem models which determine production carrying capacity, environmental effects and ecosystem services. Many of these models lack a detailed representation of the hydrodynamics of the aquaculture structure in suspension or bottom culture, and do not have sufficient spatial resolution to be useful on an individual farm scale. In addition, inadequate representation of the drivers of shellfish growth, especially the detrital components of suspended particulate matter, limits the predictability of such models.

Using the modeling software platforms for STEMGIS (http://discoverysoftware.com) and ShellSIM (http://shellsim.com) we have integrated environmental descriptors, a hydrodynamic flow model and an ecological model for the American oyster Crassostrea virginica to predict oyster growth and environmental impacts as a function of culture practice at 50 m resolution through an aquaculture region in Maine, USA (Damariscotta River). Interactive effects of environmental drivers (temperature, salinity, food concentration), shellfish densities and benthic boundary flow dynamics on growth rates and the environment can be interrogated over time using the user-friendly interface tailored through stakeholder interaction for ShellGIS. Simplified output formats provide answers to frequently asked questions by shellfish farmers, such as include optimal seeding times and densities so as to minimize time to harvestable size. Results emphasize the influence of farm scale hydrodynamics upon growth of bottom cultured oysters.

Current work is adding further components to simulate hydrodynamics interrelations in and around suspended culture systems (bags and trays), economic analyses of profitability and further user interfaces to suit different interests, towards a transferable tool that will help optimize both suspended and benthic culture practices.


  • Home Office
    Carol Mendoza, Home Office Director
    World Aquaculture Society
    PO Box 397
    Sorrento, LA 70778-0397 (USA)
    Phone: +1-225-347-5408
    FAX: +1-225-347-5408
    Email: Carol Mendoza
  • Conference Management:
    John Cooksey
    P.O. Box 2302
    Valley Center, CA 92082 USA
    Phone: +1 760 751-5005
    FAX: +1 760 751-5003
    Email: John Cooksey
  • Trade Show and Sponsors
    Mario Stael
    Email: Mario Stael
  • Web Site:
    WAS Web Editor
    Email: Web Editor
Copyright © 2001-2018 World Aquaculture Society All Rights Reserved.