PROBLEMS OF BIOFOULING ON FISH–CAGE NETS IN AQUACULTURE
Biofouling on fish–cage netting is a serious technical and economical problem to aquaculture worldwide. Compensation for the effects of biofouling must be included in cage system design and planning, as fouling can dramatically increase both weight and drag. Settlements of sessile plants and animals...
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Format: | Article |
Language: | English |
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Sciendo
2002-09-01
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Series: | Croatian Journal of Fisheries |
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Online Access: | http://ribarstvo.agr.hr/articles/75551_PROBLEM_OBRA_TANJA_MRE_A_U_AKVAKULTURI_hr.pdf |
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author | Merica Slišković Gorana Jelić |
author_facet | Merica Slišković Gorana Jelić |
author_sort | Merica Slišković |
collection | DOAJ |
description | Biofouling on fish–cage netting is a serious technical and economical problem to aquaculture worldwide. Compensation for the effects of biofouling must be included in cage system design and planning, as fouling can dramatically increase both weight and drag. Settlements of sessile plants and animals, with accumulation of the detritus diminish the size of mesh and can rapidly occlude mesh. Negative effect of smaller mesh size is changing in water flow trough the cages. Biofouling problems necessitating purchase of a second sets of nets or more, and frequent cleaning and changing of biofouling. Changing and cleaning frequency depend on many factors such as: location of cages (near the coast or off shore), productivity of that location, time of the year, time period in which the cages are placed on that location (cause of loading of phosphorus and nitrogen from the unconsumed food in the sediment). Net changing and cleaning procedures are labor and capital intensive. Process of the cleaning of the nets is inadequate, especially when there isnžt adequate equipment available as it is case in smaller aquaculture industry. Chemical control of biofouling e. g. use of antifoulants is questioningly cause of their possible negative effects on breeding species and environment. |
first_indexed | 2024-12-20T12:58:24Z |
format | Article |
id | doaj.art-5dcd70d417af4fce877a348a3afbc253 |
institution | Directory Open Access Journal |
issn | 1330-061X 1848-0586 |
language | English |
last_indexed | 2024-12-20T12:58:24Z |
publishDate | 2002-09-01 |
publisher | Sciendo |
record_format | Article |
series | Croatian Journal of Fisheries |
spelling | doaj.art-5dcd70d417af4fce877a348a3afbc2532022-12-21T19:39:59ZengSciendoCroatian Journal of Fisheries1330-061X1848-05862002-09-01603105115PROBLEMS OF BIOFOULING ON FISH–CAGE NETS IN AQUACULTUREMerica SliškovićGorana JelićBiofouling on fish–cage netting is a serious technical and economical problem to aquaculture worldwide. Compensation for the effects of biofouling must be included in cage system design and planning, as fouling can dramatically increase both weight and drag. Settlements of sessile plants and animals, with accumulation of the detritus diminish the size of mesh and can rapidly occlude mesh. Negative effect of smaller mesh size is changing in water flow trough the cages. Biofouling problems necessitating purchase of a second sets of nets or more, and frequent cleaning and changing of biofouling. Changing and cleaning frequency depend on many factors such as: location of cages (near the coast or off shore), productivity of that location, time of the year, time period in which the cages are placed on that location (cause of loading of phosphorus and nitrogen from the unconsumed food in the sediment). Net changing and cleaning procedures are labor and capital intensive. Process of the cleaning of the nets is inadequate, especially when there isnžt adequate equipment available as it is case in smaller aquaculture industry. Chemical control of biofouling e. g. use of antifoulants is questioningly cause of their possible negative effects on breeding species and environment.http://ribarstvo.agr.hr/articles/75551_PROBLEM_OBRA_TANJA_MRE_A_U_AKVAKULTURI_hr.pdfbiofoulingnets for cagesaquaculturenegative effectsantifoulants |
spellingShingle | Merica Slišković Gorana Jelić PROBLEMS OF BIOFOULING ON FISH–CAGE NETS IN AQUACULTURE Croatian Journal of Fisheries biofouling nets for cages aquaculture negative effects antifoulants |
title | PROBLEMS OF BIOFOULING ON FISH–CAGE NETS IN AQUACULTURE |
title_full | PROBLEMS OF BIOFOULING ON FISH–CAGE NETS IN AQUACULTURE |
title_fullStr | PROBLEMS OF BIOFOULING ON FISH–CAGE NETS IN AQUACULTURE |
title_full_unstemmed | PROBLEMS OF BIOFOULING ON FISH–CAGE NETS IN AQUACULTURE |
title_short | PROBLEMS OF BIOFOULING ON FISH–CAGE NETS IN AQUACULTURE |
title_sort | problems of biofouling on fish cage nets in aquaculture |
topic | biofouling nets for cages aquaculture negative effects antifoulants |
url | http://ribarstvo.agr.hr/articles/75551_PROBLEM_OBRA_TANJA_MRE_A_U_AKVAKULTURI_hr.pdf |
work_keys_str_mv | AT mericasliskovic problemsofbiofoulingonfishcagenetsinaquaculture AT goranajelic problemsofbiofoulingonfishcagenetsinaquaculture |