CHAPTER 6 ENVIRONMENTAL ISSUES ASSOCIATED WITH OFFSHORE AQUACULTURE & MODELING POTENTIAL IMPACT
Real and perceived aquaculture environmental impacts that must be considered prior to expansion to open ocean locations include: 1) benthic carbon loading, 2) water column nutrification, 3) stim-ulation of harmful algal blooms, and 4) escapement and implications to wild populations. A sim-ulation mo...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.572.9989 2023-05-15T18:06:07+02:00 CHAPTER 6 ENVIRONMENTAL ISSUES ASSOCIATED WITH OFFSHORE AQUACULTURE & MODELING POTENTIAL IMPACT Ralf Riedel Christopher J. Bridger The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.572.9989 http://www.gulfcouncil.org/Beta/GMFMCWeb/Aquaculture/OAC Chapter 6.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.572.9989 http://www.gulfcouncil.org/Beta/GMFMCWeb/Aquaculture/OAC Chapter 6.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.gulfcouncil.org/Beta/GMFMCWeb/Aquaculture/OAC Chapter 6.pdf text ftciteseerx 2016-01-08T12:37:19Z Real and perceived aquaculture environmental impacts that must be considered prior to expansion to open ocean locations include: 1) benthic carbon loading, 2) water column nutrification, 3) stim-ulation of harmful algal blooms, and 4) escapement and implications to wild populations. A sim-ulation model was developed for predicting the benthic impacts from offshore cage culture. The model simulates the impact of feed and feces from one cage on a 600 m2 area on the seafloor using total organic carbon (TOC) as an indicator. A Gaussian error was added to all variable means to represent variation about central tendencies. Cobia, red snapper, and red drum were the cultured species. We also considered depths of 20, 40, and 60 m between feces and feed point of release from the cage and the seafloor. Variables associated with management scenarios and fish biology were held constant throughout simulation runs. Cobia culture resulted in the least impact on TOC accumulation. Cages operated at 40 m depth resulted in 20 % less TOC accumulation than those operated at 20 m. Operations at 60 m resulted in an accumulation of TOC of over 60 % less of that from 40 m. Additional research is necessary to validate model results with data collected from operating open ocean aquaculture ventures prior to industry usage of the simulation model for site selection and management planning purposes. Text Red drum Unknown |
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Real and perceived aquaculture environmental impacts that must be considered prior to expansion to open ocean locations include: 1) benthic carbon loading, 2) water column nutrification, 3) stim-ulation of harmful algal blooms, and 4) escapement and implications to wild populations. A sim-ulation model was developed for predicting the benthic impacts from offshore cage culture. The model simulates the impact of feed and feces from one cage on a 600 m2 area on the seafloor using total organic carbon (TOC) as an indicator. A Gaussian error was added to all variable means to represent variation about central tendencies. Cobia, red snapper, and red drum were the cultured species. We also considered depths of 20, 40, and 60 m between feces and feed point of release from the cage and the seafloor. Variables associated with management scenarios and fish biology were held constant throughout simulation runs. Cobia culture resulted in the least impact on TOC accumulation. Cages operated at 40 m depth resulted in 20 % less TOC accumulation than those operated at 20 m. Operations at 60 m resulted in an accumulation of TOC of over 60 % less of that from 40 m. Additional research is necessary to validate model results with data collected from operating open ocean aquaculture ventures prior to industry usage of the simulation model for site selection and management planning purposes. |
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The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Ralf Riedel Christopher J. Bridger |
spellingShingle |
Ralf Riedel Christopher J. Bridger CHAPTER 6 ENVIRONMENTAL ISSUES ASSOCIATED WITH OFFSHORE AQUACULTURE & MODELING POTENTIAL IMPACT |
author_facet |
Ralf Riedel Christopher J. Bridger |
author_sort |
Ralf Riedel |
title |
CHAPTER 6 ENVIRONMENTAL ISSUES ASSOCIATED WITH OFFSHORE AQUACULTURE & MODELING POTENTIAL IMPACT |
title_short |
CHAPTER 6 ENVIRONMENTAL ISSUES ASSOCIATED WITH OFFSHORE AQUACULTURE & MODELING POTENTIAL IMPACT |
title_full |
CHAPTER 6 ENVIRONMENTAL ISSUES ASSOCIATED WITH OFFSHORE AQUACULTURE & MODELING POTENTIAL IMPACT |
title_fullStr |
CHAPTER 6 ENVIRONMENTAL ISSUES ASSOCIATED WITH OFFSHORE AQUACULTURE & MODELING POTENTIAL IMPACT |
title_full_unstemmed |
CHAPTER 6 ENVIRONMENTAL ISSUES ASSOCIATED WITH OFFSHORE AQUACULTURE & MODELING POTENTIAL IMPACT |
title_sort |
chapter 6 environmental issues associated with offshore aquaculture & modeling potential impact |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.572.9989 http://www.gulfcouncil.org/Beta/GMFMCWeb/Aquaculture/OAC Chapter 6.pdf |
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Red drum |
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Red drum |
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http://www.gulfcouncil.org/Beta/GMFMCWeb/Aquaculture/OAC Chapter 6.pdf |
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http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.572.9989 http://www.gulfcouncil.org/Beta/GMFMCWeb/Aquaculture/OAC Chapter 6.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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