00000nam 2200000zi 4500 9.855530 CaOODSP 20221107155325 m o d f cr cn||||||||| 180419t20182018nscab ob f000 0 eng d 9780660263144 CaOODSP eng rda CaOODSP eng fre n-cn-ns y0y1 Fs97-6/3260E-PDF Nagel, E. J. (Elizabeth J.) author. Nitrogen loading rates for twenty-one seagrass inhabited bays in Nova Scotia, Canada / by E.J. Nagel, G. Murphy, M.C. Wong and H.K. Lotze. Dartmouth, NS : Coastal Ecosystem Science Division, Science Branch, Maritimes Region, Fisheries and Oceans Canada, Bedford Institute of Oceanography, 2018. ©2018 1 online resource (v, 37 pages) : colour illustrations, maps (chiefly colour). text txt rdacontent computer c rdamedia online resource cr rdacarrier Canadian technical report of fisheries and aquatic sciences, 1488-5379 ; 3260 Includes bibliographical references. "Nutrient loading from anthropogenic sources has implications for the health and functioning of aquatic species and ecosystems. Using a nutrient loading model (NLM), nitrogen loading from point and non-point sources was estimated for 21 Nova Scotia bays where eelgrass (Zostera marina) has been documented. Overall, atmospheric deposition contributed most (73-100%) of the total nitrogen loading, followed by fertilizer use and discharges from seafood processing and finfish aquaculture. The highest total loading was in St. Margaret's Bay, and the lowest in Kejimkujik National Park Seaside. The maximum loading rates standardized by watershed area (yield) found in Nova Scotia were lower compared to the maximum estimates previously found in New Brunswick, and nitrogen residencies (delta-N) were much lower than in Prince Edward Island. Loading rates per estuary area were positively related to nitrogen tissue content in eelgrass leaves. This NLM can be easily updated and applied to other watersheds to compare nutrient loading rates across similar systems"--Abstract, page iv. Includes abstract in French. gccst Water pollution Murphy, G. (Grace) author. Wong, Melisa C., 1977- author. Lotze, Heike K., author. Canada. Department of Fisheries and Oceans. Bedford Institute of Oceanography. Canadian technical report of fisheries and aquatic sciences, 1488-5379 ; 3260. (CaOODSP)9.504449 PDF 2.89 MB https://publications.gc.ca/collections/collection_2019/mpo-dfo/Fs97-6-3260-eng.pdf