00000nam 2200000zi 4500 9.910522 CaOODSP 20240913142333 m o d f cr mn||||||||| 220425e202208 oncab ob f000 0 eng d 9780660432519 CaOODSP eng rda CaOODSP n-cn-ns n-cn-nk ln----- y1y1 Fs70-5/2022-026E-PDF Singh, Rabindra, 1961- author. Summary of 2015, 2016, and 2017 herring acoustic surveys in Northwest Atlantic Fisheries Organization (NAFO) Divisions 4VWX / R. Singh, A. MacIntyre, J. Munden, A. Clay, D. Knox, and G.D. Melvin. Ottawa ON : Canadian Science Advisory Secretariat (CSAS), August 2022. ©2022 1 online resource (iv, 197 pages) : illustrations (some colour), maps (some colour). text txt rdacontent computer c rdamedia online resource cr rdacarrier Research document, 1919-5044 ; 2022/026 Issued also in French under title: Résumé des relevés acoustiques du hareng de 2015, de 2016 et de 2017 dans les divisions 4VWX de l'Organisation des pêches de l'Atlantique Nord-Ouest (OPANO). Includes bibliographical references (pages 42-44). "Automated acoustic recording systems deployed on commercial fishing vessels have been used since 1997 to document the distribution and relative abundance of Atlantic Herring from industry vessel surveys and fishing excursions in the Bay of Fundy and coastal Nova Scotia area within Northwest Atlantic Fisheries Organization (NAFO) divisions 4VWX. During the years 2015 to 2017, regularly scheduled surveys at approximately 14 day intervals were again conducted on the main Herring spawning components, and the spawning stock biomass for each component was estimated by summing these results. Six structured surveys were conducted in Scots Bay in 2015, six in 2016, and eight in 2017. Five usable structured surveys were conducted on German Bank in both 2015 and 2016. There were four (plus two) surveys on German Bank in 2017. The September 17 survey was initially excluded because it was nine days after the previous one; however, this resulted in a 28-day gap before the next acceptable survey. Subesquently, at the 2018 assessment meeting, this survey was included. One acceptable structured survey was completed in the Trinity Ledge area in 2015, followed by three in 2016 and four in 2017. There were no structured surveys conducted in 2015 or 2016 for Spectacle Buoy; however, three fall surveys were completed in 2017. In most cases, these surveys provided good coverage of the spawning areas consistent with established protocols"--Abstract, page iv. Atlantic herring Nova Scotia Atlantic Coast. Atlantic herring Fundy, Bay of. Fish stock assessment Nova Scotia Atlantic Coast. Fish stock assessment Fundy, Bay of. Fish surveys Nova Scotia Atlantic Coast. Fish surveys Fundy, Bay of. Canadian Science Advisory Secretariat, issuing body. Canada. Department of Fisheries and Oceans. Maritimes Region, issuing body. Résumé des relevés acoustiques du hareng de 2015, de 2016 et de 2017 dans les divisions 4VWX de l'Organisation des pêches de l'Atlantique Nord-Ouest (OPANO) / (CaOODSP)9.910523 Research document (Canadian Science Advisory Secretariat) 2022/026. (CaOODSP)9.507396 PDF 22.60 MB https://publications.gc.ca/collections/collection_2022/mpo-dfo/fs70-5/Fs70-5-2022-026-eng.pdf