00000nam 2200000zi 4500 9.914628 CaOODSP 20250107144057 m o d f cr mn||||||||| 220819t20222022nfcab obs f000 0 eng d 9780660451336 CaOODSP eng rda CaOODSP eng eng fre n-cn-nf ln----- x9y1 Fs97-18/342E-PDF Doyle, Gina, author. Nitrate, silicate, and phosphate atlas for the Newfoundland and Labrador Shelves, Grand Banks of Newfoundland, and Flemish Cap 1999-2016 / Gina Doyle, Gary Maillet, and Pierre Pepin. St. John's, NL, Canada : Fisheries and Oceans Canada, Science Branch, Newfoundland and Labrador Region, Environmental Sciences Division, Northwest Atlantic Fisheries Centre, 2022. ©2022 1 online resource (v, 440 pages) : colour illustrations, colour map. text txt rdacontent computer c rdamedia online resource cr rdacarrier Canadian technical report of hydrography and ocean sciences, 1488-5417 ; 342 Includes bibliographical references (pages 19-22). "We present a climatological analysis of nutrient concentrations for phosphate, silicate, and nitrate+nitrite for the Newfoundland and Labrador (NL) Region based on data collected from 1999-2016. Harmonic analysis of a high sampling frequency hydrographic station (Station 27) provides a depth-dependent description of the seasonal cycle. The climatology quantifies cross-shelf patterns of variation in nutrient concentrations based on surveys of nine oceanographic sections, that are sampled from 1-3 times annually. Overall, mean nutrient concentrations were generally lowest at the surface and increased with depth. Phosphate varied most along transitions in bathymetry, nitrate concentrations increased in deep water towards the shelf break, and silicate concentrations were higher on the shelf compared to slope waters. Spring climatologies showed moderate gradients and some near-surface depletion, summer distributions were characterized by total or near depletion near-surface and stronger gradients deeper than 50m, while the fall was characterized by weakened gradients associated with replenishment in the upper water column. The variable roles that physical and biological processes play across seasons and water column depth were evident at Station 27 and all nine sections"--Abstract, page iv. Includes abstracts in English and French. Nitrates Newfoundland and Labrador Statistics. Silicates Newfoundland and Labrador Statistics. Phosphates Newfoundland and Labrador Statistics. Nitrates Terre-Neuve-et-Labrador Statistiques. Silicates Terre-Neuve-et-Labrador Statistiques. Phosphates Terre-Neuve-et-Labrador Statistiques. Statistics lcgft Statistiques rvmgf Canada. Department of Fisheries and Oceans, issuing body. Northwest Atlantic Fisheries Centre (Canada), issuing body. Canadian technical report of hydrography and ocean sciences ; 342. (CaOODSP)9.504781 PDF 17.18 MB https://publications.gc.ca/collections/collection_2022/mpo-dfo/Fs97-18-342-eng.pdf