Life Cycle Assessment of Aquaculture Stewardship Council Certified Atlantic Salmon (Salmo salar)

Salmon aquaculture has grown rapidly and is expected to continue to grow to meet consumer demand. Due to concerns about the environmental impacts associated with salmon aquaculture, eco-labeling groups have developed standards intended to hold salmon producers accountable and provide a more sustaina...

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Bibliographic Details
Published in:Sustainability
Main Authors: Jesse Sherry, Jennifer Koester
Format: Article in Journal/Newspaper
Language:English
Published: MDPI AG 2020
Subjects:
Online Access:https://doi.org/10.3390/su12156079
https://doaj.org/article/ceea724ec94142ef9d33d6ef0ccb9dde
Description
Summary:Salmon aquaculture has grown rapidly and is expected to continue to grow to meet consumer demand. Due to concerns about the environmental impacts associated with salmon aquaculture, eco-labeling groups have developed standards intended to hold salmon producers accountable and provide a more sustainable option to consumers. This study utilized life cycle assessment (LCA) to quantify the environmental impacts of salmon raised to Aquaculture Stewardship Council (ASC) certification standards in order to determine if ASC certification achieves the intended reductions in impact. We find that environmental impacts, such as global warming potential, do not decrease with certification. We also find that salmon feed, in contrast to the on-site aquaculture practices, dominates the environmental impacts of salmon aquaculture and contributes to over 80% of impacts in ozone depletion, global warming potential, acidification, and ecotoxicity. Based on these findings, we recommend that eco-labeling groups prioritize reducing the environmental impacts of the feed supply chain.