Deep Water Renewal in the Strait of Georgia

Masson, Diane

doi:10.1006/ecss.2001.0833

Cited by 106 publications

(109 citation statements)

References 15 publications

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“…Although beyond the scope of the present study we also note that there are several bottlenecks within the model domain, such as Weynton Passage and the Knight Inlet sill, where the spring/neap tidal modulation can be expected to provide a fortnightly pulsing of the subtidal estuarine flows. This phenomenon has been studied before in Knight Inlet by Stacey et al (1995) and in Juan de Fuca Strait and the Strait of Georgia by Griffith and LeBlond (1990) and Masson (2002), respectively. Clearly it warrants further examination.…”

Section: / Mgg Foreman Et Almentioning

confidence: 86%

Estuarine and Tidal Currents in the Broughton Archipelago

et al. 2006

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Section: / Mgg Foreman Et Almentioning

confidence: 86%

Estuarine and Tidal Currents in the Broughton Archipelago

et al. 2006

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“…Alternatively, the high attenuation might identify turbid plumes flowing out of Haro Strait and down the sills. Periodic deep-water renewal events are associated with changes in salinity and temperature of the bottom water that amount to a density difference from ambient of less than 1 σ T unit (Masson, 2002). This difference would be equivalent to a suspended load of <1 mg L -1 of particles.…”

Section: B Haro Strait Regionmentioning

confidence: 99%

Distribution and Cycling of Suspended Particles Inferred from Transmissivity in the Strait of Georgia, Haro Strait and Juan de Fuca Strait

Johannessen

Masson²,

Macdonald³

2006

Atmosphere-Ocean

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“…Year-round the concentration in surface waters is high (7 to 9 ml l -1 ) and decreases with depth (Masson & Cummins 2007). At depth, DO is periodically re-supplied during deep-water renewal in the late spring and summer (Masson 2002), which opposes a relentless drawdown due to the oxidation of organic matter supplied from above, leading to a seasonal cycle in deep-water DO (Fig. 7).…”

Section: Dissolved Oxygenmentioning

confidence: 99%

Effects of local and global change on an inland sea: the Strait of Georgia, British Columbia, Canada

Johannessen¹,

Macdonald²

2009

Clim. Res.

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Global changes manifest themselves in coastal waters depending on local oceanography and ecosystems. In this paper, we consider the Strait of Georgia as a case study. After examining physical and chemical processes and trends, we discuss consequences of change on geochemical cycling and biota. Several components of the system are vulnerable. Declines in pH and O 2 of basin waters, partly imported from the shelf and partly supported by carbon cycling within the strait, could reduce benthic and pelagic habitat. Sea level rise and storms will interact with coastal development to place critical habitat, such as low-lying estuaries, intertidal zones and mudflats, at risk. The decrease and earlier peak in zooplankton biomass may lead to changes in the food web that cascade to higher trophic levels such as fish and birds. Anadromous fish, already showing declines, are vulnerable to ocean regime shifts, increasing river temperatures, habitat destruction, harvesting and contaminants. For southern resident killer whales Orcinus orca, a species at risk, decline in Chinook salmon Oncorhynchus tshawytscha together with marine traffic and biomagnifying contaminants will lead to extirpation if no action is taken. Some stressors can be controlled only through international action to mitigate climate change. However, we have local control of fishing, habitat destruction, release of some contaminants and, to some extent, river flow and temperature. Acting to control these stressors will support resilience of biota in the face of inevitable global changes.

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Deep Water Renewal in the Strait of Georgia

Cited by 106 publications

References 15 publications

Estuarine and Tidal Currents in the Broughton Archipelago

Estuarine and Tidal Currents in the Broughton Archipelago

Distribution and Cycling of Suspended Particles Inferred from Transmissivity in the Strait of Georgia, Haro Strait and Juan de Fuca Strait

Effects of local and global change on an inland sea: the Strait of Georgia, British Columbia, Canada

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