Akademik Veri Yönetim Sistemi
2.Uluslararası Lisansüstü Çalışmalar Kongresi, İzmir, Türkiye, 8 - 11 Haziran 2022, ss.831
The fouling of artificial surfaces by fouling organisms in aquatic
ecosystems is called biofouling. Biofouling has undesirable consequences for
the aquaculture industry. The large habitat provided by aquaculture nets to
biofouling organisms causes fouling organisms to invade this surface. Due to
biofouling, the pores of the cage nets are closed, the total mass and
hydrodynamic friction increase and damage the cage system carriers. Antifouling
technologies are applied to protect against harmful effects caused by
biofoling. When the literature was searched, it was observed that the number of
studies to protect aquaculture nets from biofouling organisms was insufficient.
In this study, the antifouling activities of different biocides were tested on
aquaculture nets in the development of environmentally friendly antifouling
paints. Within the scope of the study, econea, diuron and irgarol were used as
biocidal agents. Antifouling coatings were produced by adding selected biocides
to lanolin, paraffin wax, styrene-acrylic copolymer and rosin matrices at a percenrage
of 3% (w/w). The produced antifouling coatings were coated on aquaculture nets
by dip-coat method. Field tests were carried out in Izmir in August – September
2021. According to the results obtained from the first field test, antifouling
activity was determined in biocide-free formulations of rosin and lanolin
matrices compared to other matrices. In addition, after the first field test,
biofouling organisms attached to the aquaculture nets were examined and it was
determined that Balanus amphitrite, Ulva lactuca, Hydroides elegans and Bugula
neritina species were found in high density. In the first field test, rosin
and lanolin matrices, which showed antifouling activity, were used with the
addition of biocides in the second field test. According to the results of the
study, the highest antifouling activity was obtained with econea. Diuron and
Irgarol biocides ranked second and third according to their antifouling
performance. As a result, it is suggested that a biocide called econea can be
used in this field to protect aquaculture nets from the harmful effects of
biofouling organisms.