00000nam 2200000za 4500 9.806446 CaOODSP 20240725073052 cr ||||||||||| 151126s2015 oncdb ob f000 0 eng d 978-0-660-03908-4 CaOODSP eng eng fre n-cn--- Fs97-6/3149E-PDF Using annual ecosystemic surveys to assess biodiversity in the Gulf of St. Lawrence [electronic resource] / by Claude Nozères … [et al.]. [Ottawa] : Fisheries and Oceans Canada, 2015. vii, 126 p. : fig., graphs, maps, tables. Canadian technical report of fisheries and aquatic sciences, 1488-5379 ; 3149 Includes bibliographical references (p. 24-29). Important areas for biologically diverse communities were identified for the first time using data from ecosystem surveys including bottom trawl and plankton net sampling as well as seabird observations in the Northern and Southern Gulf of St. Lawrence. Taxonomic richness was examined by group for demersal fish, benthic invertebrates, pelagic taxa (fish and invertebrates), zooplankton, and seabirds. Benthic invertebrates and zooplankton were the most diverse groups (>100 taxa), followed by demersal fish, with 67 taxa consistently recorded from both regions. Pelagic taxa were incidental in trawl captures and of partial use in analyses. Up to 39 taxa of seabirds were observed from transects on the trawl surveys. The analyses showed several areas of high taxon richness located in regions broadly similar to previous reviews while making using of more recently available samples and taxonomic data. Combining all group layers indicated sectors with high overall taxonomic richness located in both deep (Laurentian Channel) and nearshore (Mingan, Belle Isle, Chaleur Bay, Shédiac, Cape Breton) areas in the Gulf and Estuary (head of channel, Manicouagan, Gaspé Peninsula). gccst Aquatic ecosystems gccst Biological diversity gccst Fisheries management Nozères, Claude. Canada. Department of Fisheries and Oceans. Canadian technical report of fisheries and aquatic sciences, 1488-5379 ; 3149 (CaOODSP)9.504449 PDF 7.22 MB https://publications.gc.ca/collections/collection_2015/mpo-dfo/Fs97-6-3149-eng.pdf