00000nam 2200000za 4500 9.836885 CaOODSP 20221107151014 cr ||||||||||| 170615s2017 nscab ob f000 0 eng d 9780660085807 CaOODSP eng eng fre n-cn-ns Fs97-6/3215E-PDF Vandermeulen, Herbert, 1955- A drop camera survey of Port Joli, Nova Scotia [electronic resource] / by H. Vandermeulen. Dartmouth, N.S. : Fisheries and Oceans Canada, Science Branch, Maritimes Region, Bedford Institute of Oceanography, 2017. viii, 59 p. : col. ill., col. maps. Canadian technical report of fisheries and aquatic sciences, 1488-5379 ; 3215 Includes bibliographical references (p. 9). “An underwater HD video camera on a fiber-optic umbilical was adapted into a drop camera frame with laser scale and light. The video feed was run through an overlay receiving GPS coordinates and time / date stamps from a chart plotter. Video output from the overlay was recorded direct to hard drive. The resulting drop camera system was used to survey bottom type and macrophyte cover in Port Joli, Nova Scotia. The more sheltered head of the bay consisted primarily of a sandy bottom with patchy eelgrass cover. The mouth of the bay was exposed with rocky outcrops and cobble / boulder areas covered in Irish moss and kelps. Lobsters were found scattered throughout the bay in a variety of habitats from depths of approximately 3 m to 20 m (the depth limit of the survey)"--Abstract, p. vii. Includes abstract in French. Benthos Zoological surveys Underwater videography Nova Scotia Canada. Department of Fisheries and Oceans. Maritimes Region. Science Branch. Bedford Institute of Oceanography. Canadian technical report of fisheries and aquatic sciences, 1488-5379 ; 3215. (CaOODSP)9.504449 PDF 5.05 MB https://publications.gc.ca/collections/collection_2017/mpo-dfo/Fs97-6-3215-eng.pdf