f8ee23522c65832576b40c93ecfc1ac4 pmc_33800253.pdf 1f0cb9a17de2f8e14ed1abc885bd6540a03463fc pmc_33800253.pdf 3a79e0c51b0484bf0816ca87a70887f392df62b5fab23ea55e389a5d54cbecc7 pmc_33800253.pdf Title: Effects of Fouling Management and Net Coating Strategies on Reared Gilthead Sea Bream Juveniles Subject: In aquaculture, biofouling management is a difficult and expensive issue. Cuprous oxide has been commonly used to prevent fouling formation. To cheapen net management and reduce the use of copper, the industry has proposed several alternatives. Currently, polyurethane coatings are being explored and commercially implemented. With this alternative, net cleaning is done in situ, reducing the number of nets necessary to raise a batch, thus ideally reducing operational costs. This pilot study compared this new strategy to the use of cuprous oxide. The results show that nets treated with antifouling perform better and bioaccumulation of copper in fish tissues do not pose health risks to fish. Alternatives involving on-site cleaning need to improve efficiency. Although the conditions of this work are not completely comparable to commercial aquaculture conditions, the results might indicate the strengths and constrains of the solutions tested in real life. Keywords: fouling; aquaculture nets; copper; cleaning strategy; Sparus aurata Author: Jordi Comas, David Parra, Joan Carles Balasch and Lluís Tort Creator: LaTeX with hyperref Producer: pdfTeX-1.40.21 CreationDate: Mon Mar 8 12:08:42 2021 CET ModDate: Mon Mar 8 12:12:38 2021 CET Tagged: no UserProperties: no Suspects: no Form: none JavaScript: no Pages: 15 Encrypted: no Page size: 595.276 x 841.89 pts (A4) Page rot: 0 File size: 2173885 bytes Optimized: no PDF version: 1.7 name type encoding emb sub uni object ID ------------------------------------ ----------------- ---------------- --- --- --- --------- UJKFQT+VnURWPalladioL Type 1 Custom yes yes no 10 0 OECXGB+URWPalladioL-Ital Type 1 Custom yes yes no 15 0 CNCBWJ+URWPalladioL-Bold Type 1 Custom yes yes no 20 0 CMJJKA+URWPalladioL-Roma Type 1 Custom yes yes no 24 0 WLENKM+VnURWPalladioL-Bold Type 1 Custom yes yes no 28 0 SZMRXJ+TimesNewRomanPS-BoldItalicMT Type 1C WinAnsi yes yes no 36 0 MCBCCI+SourceSansRoman-Regular Type 1C Custom yes yes no 58 0 MCBCCM+SourceSansRoman.613wght Type 1C Custom yes yes no 62 0 MCBCCO+SourceSansRoman-Bold Type 1C Custom yes yes no 66 0 RGUFCP+CMSY10 Type 1 Builtin yes yes no 82 0 RFECCF+EURM10 Type 1 Builtin yes yes no 99 0 NKIDPI+PalatinoLinotype,Italic TrueType WinAnsi yes yes no 137 0 NKIEAK+PalatinoLinotype,Bold TrueType WinAnsi yes yes no 140 0 NKIEBM+PalatinoLinotype TrueType WinAnsi yes yes no 143 0 NKIEDN+PalatinoLinotype,BoldItalic TrueType WinAnsi yes yes no 146 0 YLHTYT+URWPalladioL-BoldItal Type 1 Custom yes yes no 153 0 Jhove (Rel. 1.22.1, 2019-04-17) Date: 2021-09-11 03:34:47 CEST RepresentationInformation: pmc_33800253.pdf ReportingModule: PDF-hul, Rel. 1.12.1 (2019-04-17) LastModified: 2021-04-12 03:40:07 CEST Size: 2173885 Format: PDF Version: 1.7 Status: Well-Formed and valid SignatureMatches: PDF-hul MIMEtype: application/pdf PDFMetadata: Objects: 313 FreeObjects: 9 IncrementalUpdates: 0 DocumentCatalog: PageLayout: SinglePage PageMode: UseNone Outlines: Item: Title: Introduction Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@13c27452 Item: Title: Materials and Methods Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@262b2c86 Children: Item: Title: Study Area Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@371a67ec Item: Title: Fish Husbandry and Feeding Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@5ed828d Children: Item: Title: Water Quality Monitoring and Copper Determination in Water Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@50d0686 Item: Title: Net Sampling and Image Analysis Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@7a3d45bd Item: Title: Growth Assessment and Somatic Indexes Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@1e7c7811 Item: Title: Skin Mucus Collection and Preparation for Skin Microbiota Analyses Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@77ec78b9 Item: Title: Gill Parasites Quantification Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@1a3869f4 Item: Title: Gill Histology and Gill Score Protocol Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@a38d7a3 Item: Title: Copper Analysis Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@77f99a05 Item: Title: Statistical Analysis Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@63440df3 Item: Title: Results Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@3aeaafa6 Children: Item: Title: Water Quality Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@76a3e297 Item: Title: Netting and Fouling Formation Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@4d3167f4 Item: Title: Growth and Somatic Indexes Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@ed9d034 Item: Title: Gill Parasites and Skin Microbiota Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@6121c9d6 Item: Title: Gill Histology Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@87f383f Item: Title: Copper Analysis Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@4eb7f003 Item: Title: Discussion Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@eafc191 Item: Title: Conclusions Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@612fc6eb Item: Title: References Destination: edu.harvard.hul.ois.jhove.module.pdf.PdfSimpleObject@1060b431 Info: Title: Effects of Fouling Management and Net Coating Strategies on Reared Gilthead Sea Bream Juveniles Author: Jordi Comas, David Parra, Joan Carles Balasch and Lluís Tort Subject: In aquaculture, biofouling management is a difficult and expensive issue. Cuprous oxide has been commonly used to prevent fouling formation. To cheapen net management and reduce the use of copper, the industry has proposed several alternatives. Currently, polyurethane coatings are being explored and commercially implemented. With this alternative, net cleaning is done in situ, reducing the number of nets necessary to raise a batch, thus ideally reducing operational costs. This pilot study compared this new strategy to the use of cuprous oxide. The results show that nets treated with antifouling perform better and bioaccumulation of copper in fish tissues do not pose health risks to fish. Alternatives involving on-site cleaning need to improve efficiency. Although the conditions of this work are not completely comparable to commercial aquaculture conditions, the results might indicate the strengths and constrains of the solutions tested in real life. 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