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Seasonality and physical control of water properties and sinking and suspended particles in Douglas Channel, British Columbia / S.C. Johannessen, C.A. Wright, and D.J. Spear.Fs97-18/308E-PDF

Water properties and particles in Douglas Channel were characterized during four cruises (July 2013, April, July and October 2014), and with moored sensors and sediment traps (July 2013-June 2014.) An outflowing surface layer 10-30 m thick, driven by Kitimat and Kemano River discharge, overlay a mid-depth layer that exchanged with Hecate Strait. Deep-water renewal in June increased the concentration of oxygen by 1 mL/L to 3.5 mL/L. The surface layer was turbid (beam attenuation coefficient ≤6 m-1). The sinking particle flux at 50 m was 438 g m-2yr-1,and the organic carbon flux 37 gC m-2yr-1. Fluxes of particles and organic carbon peaked in late May, during the river freshet. The concentration of organic carbon in the sinking particles was highest in August and September (12-13%), except for a single peak in mid-November (22%).

Permanent link to this Catalogue record:
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Publication information
Department/Agency
  • Canada. Department of Fisheries and Oceans.
TitleSeasonality and physical control of water properties and sinking and suspended particles in Douglas Channel, British Columbia / S.C. Johannessen, C.A. Wright, and D.J. Spear.
Variant title
  • Saisonnalité et contrôle physique des propriétés de l'eau et des particules en suspension ou qui sombrent dans le chenal
Series title
  • Canadian technical report of hydrography and ocean sciences, 1488-5417 ; 308
Publication typeMonograph - View Master Record
Language[English]
FormatDigital text
Electronic document
Other formatsPhysical text-[English]
Note(s)
  • Includes bibliographical references (p. 12-13).
  • Issued also in printed form.
  • Text in English, abstract in English and French.
Publishing information
  • Sidney, BC : Fisheries and Oceans Canada, 2015.
Author / Contributor
  • Johannessen, S. C. (Sophia C.), 1972-
  • Wright, Cynthia.
  • Spear, D. J.
Descriptioniv, 26 p. : graphs
ISBN978-0-660-02512-4
Catalogue number
  • Fs97-18/308E-PDF
Subject terms
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