Su Kaynakları Yönetimi ve OrganizasyonuWater Resources Management and Organizationhttps://hdl.handle.net/20.500.12508/712024-03-29T13:52:47Z2024-03-29T13:52:47ZSpatial Distribution of Microplastic Contamination in the Invasive Red Sea Mussel Brachidontes pharaonis (Fischer P., 1870) Around the İskenderun BayYücel, NebilKılıç, Ecehttps://hdl.handle.net/20.500.12508/29152024-01-14T11:23:43Z2023-01-01T00:00:00ZSpatial Distribution of Microplastic Contamination in the Invasive Red Sea Mussel Brachidontes pharaonis (Fischer P., 1870) Around the İskenderun Bay
Yücel, Nebil; Kılıç, Ece
This study is first study reporting the microplastic abundance in soft tissues of a bivalvae Brachidontes pharaonis collected from 4 stations of İskenderun Bay. A total of 245 B. pharaonis specimens were examined and results showed that among examined specimens, 95 of them contained microplastic in their soft tissues. When all the data combined, mean MP abundance was found as 0.4±0.5 MPs ind-1 and 0.3±0.4 MPs g-1 ww. Fibers were predominant type of MPs and accounted for 75% of total extracted MPs, followed by fragments (25%). Majority of MPs were less than 1 mm and black. Fourier transform infrared spectroscopy (FTIR) showed that the extracted MPs were polypropylene (PP), polyethylene (PE), and polyethylene terephthalate (PET). Identified polymer types indicate that aquatic biota impacted by the anthropogenic influences such as agriculture, farming, fishing, household, etc. Results obtained in this study contribute the knowledge related with the microplastic contamination levels in marine biota.
2023-01-01T00:00:00ZIs there a relationship between human development and dependence on fisheries?Can, Mehmet FatihMazlum, YavuzErkan, Birolhttps://hdl.handle.net/20.500.12508/28672024-01-03T07:37:13Z2023-01-01T00:00:00ZIs there a relationship between human development and dependence on fisheries?
Can, Mehmet Fatih; Mazlum, Yavuz; Erkan, Birol
International food and raw material security issues has gained much more importance than ever. This study examines that the following questions 'Who depends on whom?' and 'What is the level of dependency?' considering relationships between " fisheries context" (catch and aquaculture production, total fisheries export and import, fisheries export and import value, fish consumption per capita, and processed fisheries product) and human development of countries (as Human Development Index-HDI). The overall result of the study pointed that the countries located in the highest categories in terms of HDI were both export and import-dependent. The most importance levels of dependency for the Low Developed Countries (HDI < 0.550) were fish consumption, and total imports; for Medium Developed Countries (0.550 = HDI < 0.699) were export value, exports, and catch production; for High Developed Countries (0.699 = HDI <0.80) was total exports; for Very High Developed Countries-I (0.80 = HDI < 0.900) was exports; and for Very High Developed Countries-II ( HDI = 0.90) was import value. To improve the human development of the countries and maintain the food security around the world, the following points could be suggested: i) to increase the aquaculture production both in inland and marine environments where possible, ii) for low and medium developed countries, instead of raw material exporting, to support increasing the production capacity of processed fisheries products that have higher global market prices.
2023-01-01T00:00:00ZFirst evidence of microplastic deposition in snow from TurkeyYücel, NebilTutsak, ErsinKılıç, Ecehttps://hdl.handle.net/20.500.12508/28552024-01-13T20:29:40Z2023-01-01T00:00:00ZFirst evidence of microplastic deposition in snow from Turkey
Yücel, Nebil; Tutsak, Ersin; Kılıç, Ece
Microplastic pollution in snow was investigated in top of the Amanos Mountain in Hatay region, southern Turkey. Snow samples were collected from four stations located in different heights and fronts of the mountain. Abundance of microplastic ranged from 10.5 to 16 MP per liter and a total of 519 microplastic particles (MPs) were identified in snow samples. The majority of identified microplastic were fiber (>99%), black in color and 0.5 – 2.5 mm (62%) size class and polyester (35%). This is the first study examining the microplastic pollution in snow from Turkey. Local wind and trajectory analyses revealed that MPs appeared in the sampling region originated from closely located Amik Plain and/or were transported from remote areas with northwesterly and southerly airflows.; Bu çalışmada Türkiye’nin güneyinde Hatay il sınırları içerisinde bulunan Amonas Dağının zirvesinden alınan kar numunelerinde mikroplastik kirliliği araştırılmıştır. Dağın farklı yükseklik ve cephelerinde yer alan dört istasyondan kar örnekleri alınmıştır. Örneklerdeki mikroplastik bolluğu litrede 10,5 ile 16 mikroplastik (MP) arasında değişim göstermiş olup toplamda 519 adet MP tespit edilmiştir. Tespit edilen mikroplastiklerin büyük kısmı fiber (>%99), siyah renkli, 0,5- 2,5 mm (%62) boyut aralığına sahiptir ve tespit edilen en yaygın polimer polyester (%35) olarak bulunmuştur. Bu, Türkiye'den kardaki mikroplastik kirliliğini inceleyen ilk çalışmadır. Yerel rüzgar ve yörünge analizleri, örnekleme bölesindeki MP'lerin yakın konumdaki Amik Ovası’ndan kaynaklandığını ve/veya kuzeybatı ve güney hava akımlarıyla uzak bölgelerden taşındığını ortaya koymuştur.
2023-01-01T00:00:00ZMicroplastic Composition, Load and Removal Efficiency from Wastewater Treatment Plants Discharging into Orontes RiverKılıç, EceYücel, NebilŞahutoğlu, Seycan M.https://hdl.handle.net/20.500.12508/28192023-12-27T06:05:21Z2023-01-01T00:00:00ZMicroplastic Composition, Load and Removal Efficiency from Wastewater Treatment Plants Discharging into Orontes River
Kılıç, Ece; Yücel, Nebil; Şahutoğlu, Seycan M.
Wastewater treatment plants (WWTPs) are the last stop for microplastic particles generated by anthropogenic activities before they enter the aquatic environment. In this study, three WWTPs discharging into Orontes River were investigated in terms of microplastic (MP) composition, microplastic abundance, treatment and load. Two of the WWTPs apply secondary treatment with activated sludge system and trickling filter, whereas the last WWTP apply tertiary treatment with a membrane bioreactor. When all data are combined, mean MPs abundance in the influent and effluent samples were found as 57.2 MPs/L and 2.1 MPs/L, respectively. The highest MPs removal was achieved by the membrane bioreactor (99%) and followed by the trickling filter (98%) and activated sludge process (91%). In terms of composition, fibers were dominant in both influent (94%) and effluent waters (94%). Common size of MPs in the influent waters was 500–1000 µm and decreased to < 500 µm after treatment. Polyamide (PA), polyethylene (PE), polyethylene terephthalate (PET) are the main polymers and account for 77% of sampled MPs. Even though the MPs removal rate is significantly high, approximately 45 million of MPs discharged from WWTPs into Orontes River every day. For this reason, examined WWTPs could be considered as a point source of MPs and could harm the water quality and aquatic biota.
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