Meiofaunal diversity and sediment attributes in Burrard Inlet and Fraser River Delta, British Columbia, Canada / by Terri F. Sutherland, Mitchell A. Hoyle, Rianna Burnham, Caitlin O'Neill, Marina A. Galvao,...: Fs97-6/3522E-PDF

"Sediment and meiofaunal samples were collected in Burrard Inlet and the Fraser River Delta, British Columbia, Canada, to examine sediment texture and meiofaunal distribution and diversity within the seabed. Sediment samples were analyzed for grain size fractionation, sediment porosity (%), organic constituents (%), trace-element concentration, and meiofaunal relative proportion, abundance, and frequency of occurrence. Sediment texture ranged from medium silt (58.01 µm) to very coarse sand (543.30 µm) with the majority of stations falling into coarse silt (53.25 µm - 105.20 µm) and very fine sand (98.27 µm – 181.2 µm) categories. The trace-element concentrations varied with both sediment attributes and station location and were compared to the Interim Sediment Quality Guidelines (ISQG) (CCME 1999). In terms of meiofauna taxa, nematodes, foraminiferans, and harpacticoid copepods represented the dominant meiofaunal taxa (87%) across the sampling area. Rare meiofauna, that occurred at a single station, included arachnids, cumaceans, gastropods, tanaidaceans, amphipods, calanoid copepods, cirriped larvae, and halacarids, Other predominant taxa included nematodes (Richtersia sp., Desmoscolesidae), bivalves, kinorhynchs, ostracods, rotifers and arthropod nauplius, and Annelids (Errantia, Sedentaria, Polychaeta, Oligochaeta)"--Abstract, page xvii.

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