Presentation Abstract

The Salish Sea Model explicitly evaluates the dynamics of carbonate chemistry parameters (pH, DIC, Alkalinity) at relatively small spatial and temporal scales. These model components served as a basis for estimating the pH exposure dynamics of simulated zooplankton. Zooplankton were modeled assuming a variety of movement behaviors including passive drift with the currents, daily vertical migrations and directed movement toward food or way from unfavorable conditions. These movement behaviors capture the range of possibilities for many of the species in Salish Sea. The pH conditions from the Salish Sea Model included simulations from multiple seasons in recent years and projections of carbonate chemistry expected in the future from ocean acidification. The zooplankton behavior, season, specific location in the Salish Sea ,and changes from ocean acidification all influence the pH exposure trajectories. The analysis provides insight in to which combinations of features lead to the highest and lowest rates of exposure to potentially hazardous pH conditions.

Session Title

Understanding the Salish Sea Model and its Application for Puget Sound Recovery

Conference Track

SSE15: Data and Information Management

Conference Name

Salish Sea Ecosystem Conference (Seattle, WA : 2018)

Document Type

Event

SSEC Identifier

SSE15-177

Start Date

4-4-2018 2:45 PM

End Date

4-4-2018 3:00 PM

Type of Presentation

Oral

Contributing Repository

Digital content made available by University Archives, Heritage Resources, Western Libraries, Western Washington University.

Geographic Coverage

Salish Sea (B.C. and 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

Share

COinS
 
Apr 4th, 2:45 PM Apr 4th, 3:00 PM

Ocean acidification driven changes in pH exposure of zooplankton: projections from the Salish Sea model

The Salish Sea Model explicitly evaluates the dynamics of carbonate chemistry parameters (pH, DIC, Alkalinity) at relatively small spatial and temporal scales. These model components served as a basis for estimating the pH exposure dynamics of simulated zooplankton. Zooplankton were modeled assuming a variety of movement behaviors including passive drift with the currents, daily vertical migrations and directed movement toward food or way from unfavorable conditions. These movement behaviors capture the range of possibilities for many of the species in Salish Sea. The pH conditions from the Salish Sea Model included simulations from multiple seasons in recent years and projections of carbonate chemistry expected in the future from ocean acidification. The zooplankton behavior, season, specific location in the Salish Sea ,and changes from ocean acidification all influence the pH exposure trajectories. The analysis provides insight in to which combinations of features lead to the highest and lowest rates of exposure to potentially hazardous pH conditions.