Document Type
Article
Publication Title
Marine Ecology-Progress Series
Publication Date
1-1-2004
First Page
99
Last Page
105
Volume Number
267
Abstract/ Summary
Acoustic backscatter contrast in depositional sediments under salmon farm cages in the Bay of Fundy, Canada, was correlated with localized changes in (unknown) sediment geotechnical properties, as indicated by 4 independent measures of organic enrichment. Sediment total sulfides and redox potentials, enzyme hydrolyzable amino acids, sediment profile imaging and macrofaunal samples, taken at mid-cage positions, each rejected the null hypothesis that salmon cage footprints, defined acoustically as high backscatter areas, were indistinguishable from nearby reference areas. Acoustic backscatter imaging appears capable of mapping organic enrichment in depositional sediments caused by excessive inputs of salmon farm wastes associated with intensive aquaculture.
Repository Citation
Wildish, D. J.; Hughes-Clarke, J. E.; Pohle, G. W.; Hargrave, B. T.; and Mayer, Lawrence, "Acoustic Detection of Organic Enrichment in Sediments at a Salmon Farm Is Confirmed by Independent Groundtruthing Methods" (2004). Marine Sciences Faculty Scholarship. 10.
https://digitalcommons.library.umaine.edu/sms_facpub/10
Citation/Publisher Attribution
Wildish DJ, Hughes-Clarke JE, Pohle GW, Hargrave BT, Mayer LM. Acoustic Detection of Organic Enrichment in Sediments at a Salmon Farm Is Confirmed by Independent Groundtruthing Methods. Marine Ecology-Progress Series. 2004;267: 99-105.
Publisher Statement
Copyright 2004 Inter-Research.
DOI
10.3354/meps267099
Version
publisher's version of the published document
