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étiquettes: physical sciences, petroleum industry, fish, bathymetry, habitat, watercourse crossing, aerial photography

Objectif(s): To gather baseline data regarding watercourse crossings and lakes in support of documents submitted for regulatory approval; and to fulfill Fisheries and Oceans Canada (DFO) requirements and to meet Transport Canada’s review of navigable waters.

Description du projet: A Fish Habitat Survey and Bathymetry Survey are required for the proposed South Parsons Lake Gas Supply Project. The objective of the surveys is to gather baseline data regarding watercourse crossings and lakes in support of documents submitted for regulatory approval, to fulfill Fisheries and Oceans Canada (DFO) requirements and to meet Transport Canada’s review of navigable waters. IMG-Golder Corp. is proposing to carry out a Fish Habitat Survey and Bathymetry Survey along the proposed winter access and pipeline corridor on behalf of UGFI between June 2012 and July 2013. A field crew will identify watercourse crossings encountered by the winter access and pipeline corridor. The field crew will survey the area by helicopter and will land at each watercourse crossing to collect fish habitat information. Photographs will be taken from the air and from the ground (including upstream and downstream). The habitat will be described on a datasheet that identifies the habitat types and features unique to the particular watercourse. Several types of habitat requirements will be considered, such as spawning habitat, fry nursery habitat, juvenile rearing habitat, adult feeding habitat, and overwintering habitat. Channel form and shape, direction of flow, substrate and vegetation type, and cover will be described for each crossing. Supporting information will also be recorded on datasheets such as water temperature (°C), dissolved oxygen (mg/L), pH, flow velocity (m/s), water depths (mm), watercourse width (mm), global positioning system (GPS) coordinates, time, date, and weather. Field crews will also record any fish and/or wildlife sightings. During the Bathymetry Survey, a field crew will collect bathymetry data from lakes identified to serve as water sources for the construction of the winter access. The crew will perform an aerial survey of each lake and collect aerial photographs from the helicopter before landing. Observations such as inflow or outflow streams, islands, etc. will be recorded on a map of each lake. The bathymetry data will be collected from a boat with continuous depth recordings (i.e., at one or two second intervals). The depth recordings will be geo-referenced with a GPS inside the bathymetry recorder. The spacing of the bathymetric transects will be dependent on the size of each lake and the irregularity of the lake bottom. In general, one longitudinal transect connecting the two farthest shorelines will be surveyed. Subsequent cross transects (i.e., perpendicular to the longitudinal transect) will then be evenly spaced along the longitudinal transect. A one page summary of all project activities will be submitted to the Inuvik Hunters’ and Trappers’ Committees and the Tuktoyaktuk Hunters’ and Trappers’ Committee. The Hunters’ and Trappers’ Committees may distribute those summaries as appropriate. Additionally, a summary of project work will be uploaded to the ARI website. The fieldwork for this study will be conducted from June 21, 2012 to July 31, 2012.