The Negative Relationship between Fouling Organisms and the Content of Eicosapentaenoic Acid and Docosahexaenoic Acid in Cultivated Pacific Oysters, Crassostrea gigas
Bivalves serve as an important aquaculture product, as they are the source of essential fatty acids, such as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), in our diet. However, their cultivation in the wild can be affected by fouling organisms that, in turn, affect their EPA and DHA co...
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ftmdpi:oai:mdpi.com:/1660-3397/19/7/369/ 2023-08-20T04:06:01+02:00 The Negative Relationship between Fouling Organisms and the Content of Eicosapentaenoic Acid and Docosahexaenoic Acid in Cultivated Pacific Oysters, Crassostrea gigas Megumu Fujibayashi Osamu Nishimura Takashi Sakamaki agris 2021-06-25 application/pdf https://doi.org/10.3390/md19070369 EN eng Multidisciplinary Digital Publishing Institute https://dx.doi.org/10.3390/md19070369 https://creativecommons.org/licenses/by/4.0/ Marine Drugs; Volume 19; Issue 7; Pages: 369 dietary resource Mytilus galloprovincialis Crassostrea gigas diatom competition biofouling EPA DHA Text 2021 ftmdpi https://doi.org/10.3390/md19070369 2023-08-01T02:02:39Z Bivalves serve as an important aquaculture product, as they are the source of essential fatty acids, such as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), in our diet. However, their cultivation in the wild can be affected by fouling organisms that, in turn, affect their EPA and DHA content. The effects of fouling organisms on the EPA and DHA contents of cultivated bivalves have not been well documented. We examined the effects of fouling organisms on the EPA and DHA contents and condition index of cultured oysters, Crassostrea gigas, in an aquaculture system. We sampled two-year-old oysters from five sites in Shizugawa Bay, Japan, in August 2014. Most of the fouling organisms were sponges, macroalgae, and Mytilus galloprovincialis. A significant negative relationship existed between the DHA content in C. gigas and the presence of sponges and macroalgae. A lower C. gigas EPA content corresponded to a higher M. galloprovincialis fouling mass and a lower C. gigas condition index. This can be explained by dietary competition between C. gigas and M. galloprovincialis for diatoms, which were the main producer of EPA in our study sites. Our findings indicate that fouling organisms likely reduce the EPA and DHA content in cultivated oysters. Therefore, our results suggest that the current efforts to remove fouling organisms from oyster clusters is an effective strategy to enhance the content of EPA and DHA in oysters. Text Crassostrea gigas MDPI Open Access Publishing Pacific Marine Drugs 19 7 369 |
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MDPI Open Access Publishing |
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language |
English |
topic |
dietary resource Mytilus galloprovincialis Crassostrea gigas diatom competition biofouling EPA DHA |
spellingShingle |
dietary resource Mytilus galloprovincialis Crassostrea gigas diatom competition biofouling EPA DHA Megumu Fujibayashi Osamu Nishimura Takashi Sakamaki The Negative Relationship between Fouling Organisms and the Content of Eicosapentaenoic Acid and Docosahexaenoic Acid in Cultivated Pacific Oysters, Crassostrea gigas |
topic_facet |
dietary resource Mytilus galloprovincialis Crassostrea gigas diatom competition biofouling EPA DHA |
description |
Bivalves serve as an important aquaculture product, as they are the source of essential fatty acids, such as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), in our diet. However, their cultivation in the wild can be affected by fouling organisms that, in turn, affect their EPA and DHA content. The effects of fouling organisms on the EPA and DHA contents of cultivated bivalves have not been well documented. We examined the effects of fouling organisms on the EPA and DHA contents and condition index of cultured oysters, Crassostrea gigas, in an aquaculture system. We sampled two-year-old oysters from five sites in Shizugawa Bay, Japan, in August 2014. Most of the fouling organisms were sponges, macroalgae, and Mytilus galloprovincialis. A significant negative relationship existed between the DHA content in C. gigas and the presence of sponges and macroalgae. A lower C. gigas EPA content corresponded to a higher M. galloprovincialis fouling mass and a lower C. gigas condition index. This can be explained by dietary competition between C. gigas and M. galloprovincialis for diatoms, which were the main producer of EPA in our study sites. Our findings indicate that fouling organisms likely reduce the EPA and DHA content in cultivated oysters. Therefore, our results suggest that the current efforts to remove fouling organisms from oyster clusters is an effective strategy to enhance the content of EPA and DHA in oysters. |
format |
Text |
author |
Megumu Fujibayashi Osamu Nishimura Takashi Sakamaki |
author_facet |
Megumu Fujibayashi Osamu Nishimura Takashi Sakamaki |
author_sort |
Megumu Fujibayashi |
title |
The Negative Relationship between Fouling Organisms and the Content of Eicosapentaenoic Acid and Docosahexaenoic Acid in Cultivated Pacific Oysters, Crassostrea gigas |
title_short |
The Negative Relationship between Fouling Organisms and the Content of Eicosapentaenoic Acid and Docosahexaenoic Acid in Cultivated Pacific Oysters, Crassostrea gigas |
title_full |
The Negative Relationship between Fouling Organisms and the Content of Eicosapentaenoic Acid and Docosahexaenoic Acid in Cultivated Pacific Oysters, Crassostrea gigas |
title_fullStr |
The Negative Relationship between Fouling Organisms and the Content of Eicosapentaenoic Acid and Docosahexaenoic Acid in Cultivated Pacific Oysters, Crassostrea gigas |
title_full_unstemmed |
The Negative Relationship between Fouling Organisms and the Content of Eicosapentaenoic Acid and Docosahexaenoic Acid in Cultivated Pacific Oysters, Crassostrea gigas |
title_sort |
negative relationship between fouling organisms and the content of eicosapentaenoic acid and docosahexaenoic acid in cultivated pacific oysters, crassostrea gigas |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2021 |
url |
https://doi.org/10.3390/md19070369 |
op_coverage |
agris |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Crassostrea gigas |
genre_facet |
Crassostrea gigas |
op_source |
Marine Drugs; Volume 19; Issue 7; Pages: 369 |
op_relation |
https://dx.doi.org/10.3390/md19070369 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/md19070369 |
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Marine Drugs |
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19 |
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7 |
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369 |
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