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Freshwater cage aquaculture : ecosystems impacts from dissolved and particulate waste phosphorus

Author: Megan Kristin Otu; Dominique P Bureau; Cheryl L Podemski; Canadian Science Advisory Secretariat,; Canada. Department of Fisheries and Oceans. Central and Arctic Region,
Publisher: Ottawa ON : Canadian Science Advisory Secretariat (CSAS), 2017. Ã2017 ©2017
Series: Research document (Canadian Science Advisory Secretariat), 2017/059.
Edition/Format:   eBook : Document : National government publication : EnglishView all editions and formats
Summary:
"Open net-pen finfish aquaculture operations in freshwaters release waste directly into aquatic environments. These wastes contain phosphorus (P) in the form of particulate P (e.g., faeces and uneaten feed) or dissolved P (e.g., soluble P released from feed, faeces, and metabolic excretions of the fish). Phosphorus is the nutrient most often limiting primary production (i.e., photosynthetic rates and biomass) in  Read more...
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Material Type: Document, Government publication, National government publication, Internet resource
Document Type: Internet Resource, Computer File
All Authors / Contributors: Megan Kristin Otu; Dominique P Bureau; Cheryl L Podemski; Canadian Science Advisory Secretariat,; Canada. Department of Fisheries and Oceans. Central and Arctic Region,
OCLC Number: 1011798411
Language Note: Includes abstracts in English and French.
Notes: Distributed by the Government of Canada Publishing and Depository Services Program (Weekly acquisitions list 2017-43).
"October 2017."
Description: 1 online resource (v, 55 pages).
Series Title: Research document (Canadian Science Advisory Secretariat), 2017/059.
Responsibility: Megan K. Otu, Dominique P. Bureau, Cheryl L. Podemski.

Abstract:

"Open net-pen finfish aquaculture operations in freshwaters release waste directly into aquatic environments. These wastes contain phosphorus (P) in the form of particulate P (e.g., faeces and uneaten feed) or dissolved P (e.g., soluble P released from feed, faeces, and metabolic excretions of the fish). Phosphorus is the nutrient most often limiting primary production (i.e., photosynthetic rates and biomass) in freshwater and, thus, anthropogenic additions of P raise concerns for potential impacts on lake productivity. Assessing and mitigating the adverse effects of P loading is critical to proper management of freshwater resources. This Canadian Science Advisory Secretariat (CSAS) review does not constitute a formal risk assessment of P inputs from cage aquaculture operations in Canadian freshwaters, but instead, synthesizes the current state of science with regards to two key components necessary to understanding the potential for effects of P waste from aquaculture: the estimated P loads per tonne of Rainbow Trout (Oncorhynchus mykiss Walbaum) produced and the lake response to such P loads"--Abstract, p. iv.

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Primary Entity

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