Abstract:
:Samples of macrobenthic organisms were obtained at seven stations on a presumed pollution gradient from the head of Vancouver Harbour through to outer Howe Sound. Polychaetes (83 apparent species) and molluscs (43 apparent species) were the most abundant faunal groups numerically (44.8 and 47.9%, respectively). Molluscs accounted for most of the biomass (87.9%). The following univariate and multivariate methods were used to investigate structural changes in the benthic communities: ANOVA, Abundance-Biomass Comparisons and related statistics, cluster analysis, multidimensional scaling, and the BIOENV procedure. Most of the analyses divided the seven stations into three groups: Port Moody Arm (Inner Harbour): two stations; Inner and Outer Harbour: four stations, and Gibsons (Howe Sound): one station. Further cause-effect investigations are needed to determine the sensitivity to organic pollution of indicator species identified in the survey. However our data correlating benthic community changes to sediment chemistry suggest the inner harbour was dominated by pollution-tolerant species. Depth and sediment grain size were confounding factors for the interpretations.
journal_name
Mar Environ Resjournal_title
Marine environmental researchauthors
Je JG,Belan T,Levings C,Koo BJdoi
10.1016/S0141-1136(03)00064-3keywords:
subject
Has Abstractpub_date
2004-02-01 00:00:00pages
121-35issue
1-2eissn
0141-1136issn
1879-0291pii
S0141-1136(03)00064-3journal_volume
57pub_type
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