Akademik Veri Yönetim Sistemi
International Symposium on Fisheries and Aquatic Sciences “SOFAS 2023”, Trabzon, Türkiye, 24 - 26 Ekim 2023, ss.2-3
Abstract
In this study, the microplastic presence of Sea bream (Sparus aurata)
in the Aegean sea region in the gastrointestinal tract in two groups as cultured
and wild fish was investigated. Gastrointestinal tissue samples were taken and
kept in KOH solution at 40°C for 72 hours to separate the organic material.
Using a sieve, the remaining large organic materials were removed and the
bottom filtrate was vacuum-filtration and filtered onto whatman filter paper. Suspected
microplastics were examined and photographed under stereo microscopy. A total of 275 suspected microplastics of 7 different colors in the form of
82% fiber, 7% fragment and 0.6% film were observed in 61 cultured fish with an
average weight of 169±15 g. A total of 628 suspected microplastics of 9 different
colors in the form of 43.5% fiber, 53.5% fragment and 3% film were observed in
64 wild fish with an average weight of 143±19 grams. In cultured fish, the most common blue fiber was 36.5%, black fiber was
25%, transparent fiber was 11.4%, white fragment was 7.5%, red fiber was 6.5%,
transparent fragment was 4.6%, yellow fiber was 2.5%, black fragment was 2.5%,
red fragment was 1.5%, purple fragment was 1.2% and a small amount of
transparent and blue film were found respectively. In wild sea bream
gostrointestinal tract, the most commonly suspected
microplastics are white fragment 29.8%, blue fiber 21.6%, brown
fragment 13.7%, transparent fiber 8.4%, white fiber 7.5%,
transparent fragment 6.2%, red fiber 3.6%,
transparent film 2.2%, red fragment 1.4%, yellow fiber 1.4%, pink
fragment 1.2%, black fiber
0.6%, black fragment 0.6% and
a small
amount of white
film, blue
fragment, black fiber, purple fragment,
green fiber
and orange
film. According to the results of the research, more suspected microplastics were
detected in the wild sea bream than in the cultured fish.
Keywords: Mikroplastics,
Sea Bream, Gastrointestinal Tract
Acknowledgment: The authors would like to thank to TUBITAK. This
research was funded by TÜBİTAK, Project No: (2535) 121N183