Date (Publication)

2001-09

Cited responsible party

Organisation name	Individual name	Electronic mail address	Role
DFO	Colin Levings		Principal investigator
Fisheries and Oceans Canada	T.F. Sutherland		Principal investigator
The Korean Society of Oceanography	Y.A. Park		Processor
The Korean Society of Oceanography	R.A. Davis Jr.		Processor

Presentation form

Digital document

Other citation details

Special Publication in Proceedings of Tidalities 2000 ISSN 1225-1283

Purpose

In this paper,we describeresultsfrom ecological studies of macrotidal estuarine environments from two settings in British Columbia (B.C.), Canada.

Status

Completed

Maintenance and update frequency

Not planned

Global Change Master Directory (GCMD) Science Keywords v15.9

• Earth Science > Oceans

• Earth Science > Oceans > Water Quality > Ocean Contaminants

DFO Areas

• North Pacific Ocean > Fraser River and BC Interior

• North Pacific Ocean > South Inner Coast(Johnstone Strait, Strait of Georgia, Juan de Fuca, inlets and passages)

DFO Areas

• North Pacific Ocean > Fraser River and BC Interior

• North Pacific Ocean > South Inner Coast(Johnstone Strait, Strait of Georgia, Juan de Fuca, inlets and passages)

Language

English

Character set

UTF8

Topic category

• Oceans
• Environment

Environment description

1591 KB

Description

Fraser River estuary. Point Grey.Bonsall Creekestuary, Squamish River estuarv.

Begin

1998

End

2001

Supplemental Information

Anomalous patterns of sediment composition in the intertidalzone ofestuaries on the west coast ofCanada (British Columbia (B.C.)) help identify potential changes to the estuarine ecosystem owing to the sedimentation of fine-grained material from both natural and industrial sources. Jetties and causeways, located on the largest tidal flats in B.C. at the Fraser River estuary, were found to 1) redirect the riverine suspended silt source in an offshore direction, 2) focus on-shore wave energy, and 3) cause a shift in sediment composition from mud to sand within the high intertidal zone of an intercauseway region. At a smaller B.C. estuary, Bonsall Creek, the deposition of gel-mud resulting from the discharge of particulate material from a water treatment settlingpond likelyaffectedthe distribution and abundance of vascular plantsand epibenthic and infaunal invertebrates within a tidal channel. Empirical data on the thickness of gel-muddeposits, loadings data, and a GIS analysis of tidal channels were used to compute possible deposition rates and area of impact. Estimated deposition rates at the landward head of the impacted tidal channel were significantly higher than maximum sedimentation rates estimated at two major estuaries: the Fraser River and Squamish River estuaries. Changes in sediment input, as well as modifications of estuarine geomorphology, can result in unbalanced sediment budgets for specific parts of an estuary. Changes in the capacity of an estuary to process and distribute sediment maytherefore be a useful measure forecosystem alterations andthus, general fish habitat management.

Distribution format

Name	Version
electronic	none

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
Pacific Salmon Foundation	Isobel Pearsall	pearsalli@shaw.ca	Distributor

OnLine resource

Protocol	Linkage	Name
WWW:LINK-1.0-http--link	https://www.dfo-mpo.gc.ca/science/data-donnees/index-eng.html	DFO Science website
WWW:DOWNLOAD-1.0-http--download	https://soggy2.zoology.ubc.ca/geonetwork/srv/api/records/70151b24-dda5-48db-adf5-8c07bfa6aef3/attachments/70151b24-dda5-48db-adf5-8c07bfa6aef3.pdf	Proceedings of Tidalites 2000
WWW:DOWNLOAD-1.0-http--download	https://soggy2.zoology.ubc.ca/geonetwork/srv/api/records/70151b24-dda5-48db-adf5-8c07bfa6aef3/attachments/70151b24-dda5-48db-adf5-8c07bfa6aef3.xlsx	Tables

Hierarchy level

Dataset

Statement

Levings produced paper copy. Fraser scanned with Fujitsu Scansnap s1500 (ABBY Finereader OCR software). Data was extracted through Adobe Reader conversion and manual entry into MS Excel.

Metadata

File identifier

70151b24-dda5-48db-adf5-8c07bfa6aef3 XML

Metadata language

eng

Character set

UTF8

Hierarchy level

Dataset

Date stamp

2023-12-19T00:31:38.174Z

Metadata standard name

North American Profile of ISO19115:2003 - Geographic information - Metadata

Metadata standard version

NAP - CAN/CGSB-171.100-2009

Metadata author

Organisation name	Individual name	Electronic mail address	Role
Pacific Salmon Foundation	Sarah Fraser	fraser.sarahk@gmail.com	Author

Other language

Language	Character encoding
French	UTF8
English	UTF8