Recovered Historic Catch and Weight – Length Data of Nearshore Fish Populations on Sturgeon and Roberts Banks, Fraser River Estuary, British Columbia

A goal of the Government of Canada’s Coastal Environmental Baseline Program (CEBP) is to amalgamate historic environmental data from high vessel traffic areas. An extensive DFO biological sampling program was conducted from 1980 to 1981 on Sturgeon and Roberts banks located on the outer Fraser River estuary, BC, Canada. This report collates and simplifies three data sets: water quality and nearshore fish catch previously published as DFO Data Report 340 (Conlin et al.1982), and un- published weight-length (W-L) data for two locations on Sturgeon Bank (Iona and Steveston) and near Westshore Terminals (Coal Port) on Roberts Bank. W-L data were reconstructed from archived computer printouts using Optical Character Recognition methods. Analyses of water quality data indicate that the two banks provided different fish habitats with Sturgeon Bank having a greater freshwater influence. Although Iona area water quality was exposed to sewage outfall from a nearby sewage treatment plant, it appears that fish communities were not different from the other Sturgeon Bank area (Steveston). The fish communities were found to be different between the two banks with Roberts Bank having greater overall abundance and diversity. Interestingly, of the seven fish species used for condition factor analyses, five were found to have lower Relative Condition Factors in the Roberts Bank sampling area.

Data and Resources

Additional Info

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Last Updated April 17, 2026, 20:57 (UTC)
Created April 17, 2026, 20:57 (UTC)
contact_email cher.lacoste@dfo-mpo.gc.ca
contact_person {"en": "Government of Canada; Fisheries and Oceans Canada; Ecosystems and Ocean Science/Pacific Science/Ecosystem Science Division", "fr": "Gouvernement du Canada; Pêches et Océans Canada; Sciences des écosystèmes et des océans/Science Pacificque/Division des sciences des écosystèmes"}
criticality_level []
data_dictionary EPSG:4326,https://epsg.io,1
geographic_scope []
open_canada_collection fgp
open_canada_date_published 2024-09-09 00:00:00
open_canada_keywords {"en": ["British Columbia", "Sturgeon bank", "Roberts bank", "Fraser River estuary", "abundance", "diversity", "water quality", "nearshore fish catch", "weight - length", "Aquatic ecosystems", "Surveys"], "fr": ["Colombie-Britannique", "le banc Sturgeon", "le banc Roberts", "estuaire du fleuve Fraser", "abondance", "diversité", "la qualité de l'eau", "les prises de poissons près du rivage", "longueur-poids", "Écosystème aquatique", "Sondage"]}
open_canada_subject ["nature_and_environment", "science_and_technology"]
sensitivity_level unrestricted
title_fr Données historiques récupérées sur les prises et le poids-longueur des populations de poissons vivant près de la côte sur les bancs Sturgeon et Roberts, estuaire du fleuve Fraser, Colombie-Britannique
update_frequency not_planned