Bay Scale Assessment of Nearshore Habitat Bras d'Or Lake - Eskasoni 2007
Bay Scale Assessment of Nearshore Habitat - Bras d'Or Lake - Eskasoni 2007 data is part of the publication Bay Scale Assessment of Nearshore Habitat Bras d'Or Lakes.
A history of nearshore benthic surveys of Bras d’Or Lake from 2005 – 2011 is presented.
Early work utilized drop camera and fixed mount sidescan. The next phase was one of towfish development, where camera and sidescan were placed on one platform with transponder-based positioning. From 2009 to 2011 the new towfish was used to ground truth an echosounder. The surveys were performed primarily in the northern half of the lake; from 10 m depth right into the shallows at less than 1 m. Different shorelines could be distinguished from others based upon the relative proportions of substrate types and macrophyte canopy. The vast majority of macrophytes occurred within the first 3 m of depth. This zone was dominated by a thin but consistent cover of eelgrass (Zostera marina L.) on almost all shores with a current or wave regime conducive to the growth of this plant. However, the eelgrass beds were frequently in poor shape and the negative impacts of commonly occurring water column turbidity, siltation, or possible localized eutrophication, are suspected. All survey data were placed into a Geographic Information System, and this document is a guide to that package. The Geographic Information System could be used to answer management questions such as the placement and character of habitat compensation projects, the selection of nearshore protected areas or as a baseline to determine long term changes.
Vandermeulen, H. 2016. Video-sidescan and echosounder surveys of nearshore Bras d’Or Lake. Can. Tech. Rep. Fish. Aquat. Sci. 3183: viii + 39 p.
Cite this data as: Vandermeulen H. Bay Scale Assessment of Nearshore Habitat Bras d'Or Lake - Eskasoni 2007. Published May 2022. Coastal Ecosystems Science Division, Fisheries and Oceans Canada, Dartmouth, N.S.
- Publisher - Current Organization Name: Fisheries and Oceans Canada
- Licence: Open Government Licence - Canada
Data and Resources
Video-Sidescan and Echosounder Surveys of Nearshore Bras d’Or LakePDFEnglish guide PDF
Data DictionaryCSVEnglish French guide CSV
Bay Scale Assessment of Nearshore Habitat Bras d'Or Lake - Eskasoni 2007ESRI RESTEnglish web_service ESRI REST
Bay Scale Assessment of Nearshore Habitat Bras d'Or Lake - Eskasoni 2007ESRI RESTFrench web_service ESRI REST
Bay Scale Assessment of Nearshore Habitat Bras d'Or Lake - Eskasoni 2007FGDB/GDBEnglish dataset FGDB/GDB
Bay Scale Assessment of Nearshore Habitat Bras d'Or Lake - Eskasoni 2007TIFFNo linguistic content; Not applicable dataset TIFF
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