Freshwater grab sampling of streams in the Kwakshua Watersheds of Calvert and Hecate Islands, BC: 2013-2019

This dataset contains the analytical results of freshwater biogeochemical samples collected on Calvert and Hecate Islands on the central coast of British Columbia, Canada, from April 2013 to December 2019. Samples were collected, approximately monthly, year round at the stream outlets of the seven largest watersheds, which are gauged as part of the Kwakshua Watersheds Observatory. The samples were analyzed for dissolved organic carbon (DOC) concentration and stable isotopes, particulate organic carbon and nitrogen (POC and PON) concentration and isotopes, dissolved organic matter (DOM) composition (via metrics of absorbance and fluorescence), total, dissolved, and inorganic nutrients, metals and major ions, water isotopes, and total suspended solids (TSS). Complimenting each water chemistry sample, we measured electrical conductivity, temperature, pH, oxidation reduction potential (ORP), and dissolved oxygen in-situ with a hand-held sensor.

Citation

Tank, S. E., Giesbrecht, I. J. W., Oliver, A. A., Pierre, K. A. St., Fedje, B., Myers, E., Quayle, L., Desmarais, I., McEwan, S., & Roberts, N. (2020). Biogeochemical Sampling of Streams in the Kwakshua Watersheds of Calvert and Hecate Islands, BC: 2013-2019. Version 1.0 [Data set]. Hakai Institute. https://doi.org/10.21966/7qnv-6y88

Funding Sources

Hakai Institute

Data Collection Information

From the Calvert Island field station, each stream was accessed by a short boat ride (~10 min). The field team was dropped on land and walked up-stream to the pre-established sampling location, above tidal influence. For most sample types, water was filtered streamside, using a 0.45 µm filter attached to a syringe. POC, PON, and TSS samples, however, were brought back to the laboratory, to be filtered via vaccum filtration, using a grade GF/F 0.7 µm filter. The samples were then preserved, according to the Hakai preservation protocol before being sent to external analytical laboratories for analysis. The absorbance and fluorescence samples as well as TSS samples were analyzed on site by Hakai technicians.

The physio-chemical parameters were measured directly at the sampling locations, using the YSI probe (Pro Plus Multiparameter Instrument)

Data Processing

The resulting data were reviewed and flagged following our standard quality control (QC) procedures.

Attribution Licence (ODC-By) v1.0

You are free to share, copy, distribute, use, modify, transform, build upon, and produce works from the data as long as you attribute any public use of the data, or works produced from the data, in the manner specified in the licence. For any use or redistribution of the data, or works produced from it, you must make clear to others the licence of the data and keep intact any notices on the original data. https://opendatacommons.org/licenses/by/1-0/

API Access

curl -G https://api.datastream.org/v1/odata/v4/Records --data-urlencode "\\$filter=DOI eq '10.25976/ndlp-wb06'" -H "x-api-key: PRIVATE-API-KEY"

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