00000nam 2200000zi 4500 9.947552 CaOODSP 20250314091907 m o d f cr mn||||||||| 250130t20252025qucab ob f000 0 eng d 9780660754901 CaOODSP eng rda CaOODSP eng eng fre n-cn-qu ln----- y1y2 Fs97-6/3616E-PDF Fs97-6/3669E-PDF Grégoire, Benjamin, author. Distribution of marine organisms in the shallow coastal zone of Quebec surveyed by underwater imagery between 2017 and 2021 / Benjamin Grégoire, Louis David Pitre, Laurence Provencher-Nolet, Laurence Paquette and Christine Desjardins. Mont-Joli, Quebec : Regional Science Branch, Quebec Region, Demersal and Benthic Science Branch, Fisheries and Oceans Canada, Maurice Lamontagne Institute, 2025. ©2025 1 online resource (v, 74 pages) : illustrations (chiefly colour), maps (some colour). text txt rdacontent computer c rdamedia online resource cr rdacarrier Canadian technical report of fisheries and aquatic sciences, 1488-5379 ; 3616 Issued also in French under title: Distribution d'organismes marins de la zone côtière peu profonde du Québec recensés par imagerie sous-marine de 2017 à 2021. The publication file in PDF format was replaced with a revised copy on 13 March 2025 at the request of the Department of Fisheries and Oceans. The catalogue number has been revised from Fs97-6/3669E-PDF to Fs97-6/3616E-PDF, and the series number has been revised from 3669 to 3616. Includes bibliographical references (pages 11-13). "Between 2017 and 2021, eleven underwater imagery sampling campaigns were carried out over an extensive area of the shallow coastal zone of the Estuary and the Gulf of St. Lawrence. These campaigns provided ground-truthing data for the mapping of estuarine and marine macrophytes and were used to document the composition of coastal ecosystems. The imagery acquisition and video analysis methods used are described in this report. In addition, the occurrence data for 150 taxa and categories of marine organisms, as well as the relative dominance of macrophytes, are discussed. The occurrence data and distribution maps highlight general geographic and bathymetric distribution trends for several macroalgae, invertebrate and fish species, including some of commercial interest. Saccharina latissima, frequently observed throughout the study area, regularly dominated the algal beds. In contrast, Chondrus crispus was virtually absent from the St. Lawrence Estuary, but was found to be dominant in the Mingan region and south of Cap Gaspé, indicating a preference for warmer waters. The truncated distribution patterns of certain invertebrates, such as Strongylocentrotus droebachiensis and Homarus americanus, are presumably explained by the presence of limiting physicochemical conditions in certain sectors of the Estuary and the Gulf of St. Lawrence"--Abstract, page iv. Includes abstracts in English and French. Marine organisms Québec (Province) Saint Lawrence River Estuary Geographical distribution. Marine organisms Saint Lawrence, Gulf of Geographical distribution. Coastal organisms Québec (Province) Saint Lawrence River Estuary Geographical distribution. Coastal organisms Saint Lawrence, Gulf of Geographical distribution. Ecological surveys Québec (Province) Saint Lawrence River Estuary. Ecological surveys Saint Lawrence, Gulf of. Canada. Department of Fisheries and Oceans, issuing body. Maurice Lamontagne Institute, issuing body. Distribution d'organismes marins de la zone côtière peu profonde du Québec recensés par imagerie sous-marine de 2017 à 2021 / (CaOODSP)9.938820 Canadian technical report of fisheries and aquatic sciences ; 3616. (CaOODSP)9.504449 PDF 7.30 MB https://publications.gc.ca/collections/collection_2025/mpo-dfo/Fs97-6-3669-eng.pdf