scholarly journals Puget Sound Dissolved Oxygen Modeling Study: Development of an Intermediate-Scale Hydrodynamic Model

2010 ◽  
Author(s):  
Zhaoqing Yang ◽  
Tarang Khangaonkar ◽  
Rochelle G. Labiosa ◽  
Taeyun Kim
Keyword(s):  
Dissolved Oxygen ◽  
Hydrodynamic Model ◽  
Puget Sound ◽  
Intermediate Scale ◽  
Study Development ◽  
Modeling Study

scholarly journals Puget Sound Dissolved Oxygen Modeling Study: Development of an Intermediate Scale Water Quality Model

2012 ◽  
Author(s):  
Tarang Khangaonkar ◽  
Brandon Sackmann ◽  
Wen Long ◽  
Teizeen Mohamedali ◽  
Mindy Roberts
Keyword(s):  
Water Quality ◽  
Dissolved Oxygen ◽  
Puget Sound ◽  
Water Quality Model ◽  
Quality Model ◽  
Intermediate Scale ◽  
Study Development ◽  
Modeling Study

Rapid shell closure in the brachiopods Terebratulina retusa and Terebrataua transversa

1992 ◽  
Vol 72 (3) ◽  
pp. 579-598 ◽  
Author(s):  
Spafford C. Ackerly
Keyword(s):  
Detailed Analysis ◽  
Hydrodynamic Model ◽  
Puget Sound ◽  
Muscle Length ◽  
Adductor Muscle ◽  
Muscle Physiology ◽  
Shell Closure ◽  
Functional Architecture ◽  
Adductor Muscles ◽  
Kinematic Properties

Rapid shell closure in articulate brachiopods, occurring by a twitch contraction of the the ‘quick’ adductor muscles, is a response to disturbance or to physiological requirements of the organism. The relative simplicity of the closing system permits a detailed analysis of the functional architecture of the mechanism and the underlying principles of skeleto-muscular organization, in terms of (1) basic kinematic properties of the system (speeds and times of closure), (2) hydrodynamic reactions resisting closure, and (3) considerations of muscle physiology and mechanics.Analyses of shell closure in the brachiopods Terebratulina retusa from the Firth of Lorn, Scotland, and Terebratalia transversa from Puget Sound, USA, reveal (1) shell-closing times of the order of 50 to 70 ms, (2) closing velocities of the order of 3·5 radians s-1, from initial gapes of about 0·05 to 0·2 rad, and (3) muscle moment forces and hydrodynamic reactions with magnitudes of the order of 5 × 10-4 N m (5 g cm). Muscle tensions developed in the ‘quick’ adductor muscle are of the order of 105 N m2, and contraction velocities are of the order of one muscle length per second. Hydrodynamic reactions are a fundamental constraint on the closing mechanism, as determined by the concordance of actual closing events with predictions of a hydrodynamic model.

Predicting Deep Water Intrusions to Puget Sound, WA (USA), and the Seasonal Modulation of Dissolved Oxygen

2017 ◽  
Vol 41 (1) ◽  
pp. 114-127 ◽  
Author(s):  
R. Walter Deppe ◽  
Jim Thomson ◽  
Brian Polagye ◽  
Christopher Krembs
Keyword(s):  
Dissolved Oxygen ◽  
Deep Water ◽  
Puget Sound

Assessing Lethal Dissolved Oxygen Tolerance for Invasive TunicateCiona savignyiin Puget Sound

2013 ◽  
Vol 87 (2) ◽  
pp. 106-113 ◽  
Author(s):  
Thomas K. Pool ◽  
Sean Luis ◽  
Julian D. Olden
Keyword(s):  
Dissolved Oxygen ◽  
Puget Sound ◽  
Oxygen Tolerance

scholarly journals Experimental and Modeling Study of Capillary/Buoyancy-driven Flow of Surrogate CO2 through Intermediate-scale Sand Tanks

2017 ◽  
Vol 114 ◽  
pp. 5032-5037
Author(s):  
Luca Trevisan ◽  
Ana Gonzalez-Nicolas ◽  
Abdullah Cihan ◽  
Ronny Pini ◽  
Jens Birkholzer ◽  
...  
Keyword(s):  
Intermediate Scale ◽  
Modeling Study

scholarly journals Evaluation of the Effect of Local Water Chemistry on Trace Metal Accumulation in Puget Sound Shellfish Shows That Concentration Varies With Species, Size, and Location

2021 ◽  
Vol 8 ◽  
Author(s):  
Eileen H. Bates ◽  
Lindsay Alma ◽  
Tamas Ugrai ◽  
Alexander Gagnon ◽  
Michael Maher ◽  
...  
Keyword(s):  
Climate Change ◽  
Trace Metals ◽  
Dissolved Oxygen ◽  
Trace Metal ◽  
Water Chemistry ◽  
Physiological Stress ◽  
Global Climate ◽  
Puget Sound ◽  
Coastal Pollution ◽  
Metal Concentrations

Global climate change is causing ocean acidification (OA), warming, and decreased dissolved oxygen (DO) in coastal areas, which can cause physiological stress and compromise the health of marine organisms. While there is increased focus on how these stressors will affect marine species, there is little known regarding how changes in water chemistry will impact the bioaccumulation of trace metals. This study compared trace metal concentrations in tissue of Mediterranean mussels (Mytilus galloprovincialis) and Olympia oysters (Ostrea lurida) in Puget Sound, Washington, a region that experiences naturally low pH, seasonal hypoxia, and is surrounded by urbanized and industrialized areas. Shellfish were held at three sites (Carr Inlet, Point Wells, and Dabob Bay) where oceanographic data was continuously collected using mooring buoys. Using inductively coupled plasma mass-spectrometry (ICP-MS) to measure trace metals in the tissue, we found differences in accumulation of trace metals based on species, location, and shellfish size. Our study found differences between sites in both the mean metal concentrations and variability around the mean of those concentrations in bivalves. However, high metal concentrations in bivalves were not associated with high concentrations of metals in seawater. Metal concentrations in shellfish were associated with size: smaller shellfish had higher concentrations of metals. Carr Inlet at 20 m depth had the smallest shellfish and the highest metal concentrations. While we could not eliminate possible confounding factors, we also found higher metal concentrations in shellfish associated with lower pH, lower temperature, and lower dissolved oxygen (conditions seen at Carr Inlet at 20 m and to a lesser extent at Point Wells at 5 m depth). There were also significant differences in accumulation of metals between oysters and mussels, most notably copper and zinc, which were found in higher concentrations in oysters. These findings increase our understanding of spatial differences in trace metal bioaccumulation in shellfish from Puget Sound. Our results can help inform the Puget Sound aquaculture industry how shellfish may be impacted at different sites as climate change progresses and coastal pollution increases.

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