Ülgen Aytan

ORCID: 0000-0002-6530-3083
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About
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Research Areas
  • Microplastics and Plastic Pollution
  • Marine and environmental studies
  • Recycling and Waste Management Techniques
  • Marine Ecology and Invasive Species
  • Marine and coastal ecosystems
  • Marine Biology and Environmental Chemistry
  • Healthcare and Environmental Waste Management
  • Marine Biology and Ecology Research
  • Municipal Solid Waste Management
  • Isotope Analysis in Ecology
  • Marine Invertebrate Physiology and Ecology
  • Pharmaceutical and Antibiotic Environmental Impacts
  • Cultural and Sociopolitical Studies
  • Aquatic and Environmental Studies
  • Maritime Security and History
  • biodegradable polymer synthesis and properties
  • Maritime Navigation and Safety
  • Parasite Biology and Host Interactions
  • Biocrusts and Microbial Ecology
  • Marine Toxins and Detection Methods
  • Aquatic life and conservation
  • Linguistics and Cultural Studies
  • Identification and Quantification in Food
  • Food Industry and Aquatic Biology
  • Turkish Literature and Culture

Recep Tayyip Erdoğan University
2016-2024

Martel
2018

Plymouth Marine Laboratory
2017

10.1016/j.scitotenv.2021.150921 article EN The Science of The Total Environment 2021-10-18

Aquatic environments are one of the final destinations for microplastics. In this review, a combination systematic and narrative literature review was conducted to identify summarise advances, gaps, future directions in microplastic monitoring studies Turkish aquatic environment inhabiting organisms. A total 62 peer-reviewed publications available on Web Science were considered review. Additionally, current state pollution which includes marine freshwater ecosystems, as well organisms,...

10.4194/trjfas24773 article EN Turkish Journal of Fisheries and Aquatic Sciences 2023-11-02

The occurrence of micro- (<5 mm), meso- (5–25 mm) and macroplastics (>25mm) was investigated in seven commercial fish species the Black Sea. Plastics were found gastrointestinal track all analysed: Engraulis encrasicolus, Trachurus mediterraneus, Sarda sarda, Belone belone, Pomatus saltatrix, Merlangius merlangus Mullus barbatus. A total 352 plastic particles removed from 190 individuals (29% examined). mean number per 0.81±1.42 par.ind-1 (considering analysed, n=650) 2.06±1.09 only...

10.4194/trjfas20504 article EN Turkish Journal of Fisheries and Aquatic Sciences 2021-10-27

The composition, density and possible sources of litter were seasonally evaluated in a selected beach the Southeastern Black Sea between June 2016 March 2017.During study, 84 different types determined total 17015 items weighing 168.9 kg collected.Litter ranged 1.22-4.17items.m - 11.78-37.47gr.m -2 .Plastics comprised 84-91% litter.The most common three foam (17%), 2.5-50 cm plastic/polystyrene pieces (15%) caps/lids (10%).Fouling organisms found on belonged to Mollusca, Arthropoda...

10.4194/1303-2712-v20_2_06 article EN Turkish Journal of Fisheries and Aquatic Sciences 2019-02-15

Phytoplankton community, diatom to dinoflagellate ratio and pigment composition in surface waters with nutrient data from April 2013 March 2014 were monitored the south-eastern (SE) Black Sea using high performance liquid chromatography (HPLC) microscopic analyses. Microscopic examination revealed a total of 71 species that consist (58%), diatoms (25%) other groups (17%). Microscopy HPLC-based analyses almost similar results which suggest phytoplankton community is mainly composed diatoms,...

10.1016/j.oceano.2017.03.004 article EN cc-by-nc-nd Oceanologia 2017-03-29

We investigated biomass and composition of the pico-, nano- microplankton communities in a coastal station southeastern Black Sea during 2011. also examined trophic interactions within these from size-fractionated dilution experiments February, June December. Autotrophic heterotrophic biomasses showed similar seasonal trends, with peak June, but heterotrophs dominated throughout year. was mainly comprised by nanoflagellates diatoms first half year, dinoflagellates Synechococcus spp. second...

10.1016/j.oceano.2017.09.002 article EN cc-by-nc-nd Oceanologia 2017-10-24

Yüksek nehir deşarjına sahip yarı kapalı bir deniz olan Karadeniz'de, çöpler önemli çevresel problemdir

10.3153/ar18014 article TR AQUATIC RESEARCH 2018-01-01

Microplastics (MPs) occurrence in greater pipefish Syngnathus acus was assessed the Black Sea for first time. MPs were found 21 % of total examined. mainly fibres shape (89 %), black colour (52 %) and 0.2- 1 mm size. The mean MP concentration 0.30 mp. fish-1 (considering all fish analysed) 1.38 that ingested them). frequency male higher (23.5 compared to females (20.7%) immatures (16.7 %). 91.7 polymers synthetic with polyethylene terephthalate (PET) (29%) being most common polymers. FTIR...

10.4194/trjfas23764 article EN Turkish Journal of Fisheries and Aquatic Sciences 2023-04-24

<div><!--block-->During the last half century, significant changes have been observed in zooplankton communities Black Sea. While some species almost disappeared, someother increased number. Noctiluca scintillans is a red-tide forming heterotrophic dinoflagellate, which widely distributed world's oceans. Due to its large cell size (&gt;200 μm) and phagotrophic feeding behavior, assessed within mesozooplankton communities. After 1970s, became dominant community Between May 2015 April 2016,...

10.26650/ase201814 article EN cc-by-nc AQUATIC SCIENCES AND ENGINEERING 2018-07-12

A new occurrence of the hydrozoan Olindias muelleri and first case an associated envenomation were recorded from eastern Aegean Sea. total eight adult medusae O. collected near surface on 22 23 June 2018 in Boyalık Bay, Turkey following a sting report by bather. Medusae identified as using morphological keys confirmed through COI-based DNA barcoding. The presence may have not been noticed past region or it could stem recent range expansion other parts Mediterranean Monitoring is needed to...

10.3800/pbr.14.22 article EN Plankton and Benthos Research 2019-02-27

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10.2139/ssrn.4768606 preprint EN 2024-01-01

"Macro and micro plastic pollutants originating from land based marine activities in coastal areas threaten life. It is observed that the types, abundance impacts of litter increase especially where current flow low water residence durations long. In recent studies supported by national resources our country, it has been determined microplastic types vary according to pressure differences diversity activities. 2020 - 2022 DEN-İZ Program, was highest concentration pollution at Marmara Sea...

10.53478/tuba.978-625-8352-95-5.ch08 article EN 2024-06-06

In this study, occurrence and composition of microplastics in planktonic larvae gastropods bivalves were assessed the SE Black Sea. Plankton samples collected from water column between July 2019 June 2020 along abundance Bivalve Gastropod ranged 0 to 7861 ind.m-3 (average 358 ±645 ind.m-3) 217 21 ±16 ind.m-3), respectively. As a result analysis total 2478 230 larvae, microplastic ingestion was calculated as 0.007-0.143 mp.ind-1 0.125 mp.ind-1, Ingested mainly shape fragment red, black yellow...

10.4194/trjfas26829 article EN Turkish Journal of Fisheries and Aquatic Sciences 2024-11-29

Microplastic (MP) pollution was investigated in the sediment of lakes on Robert Island South Shetland Islands located northwest Antarctic Peninsula. Sediment samples were taken from a glacial lake (L1) and three coastal (L2, L3 L4) March April 2018 as part Turkish Science Expedition-II (TAE-II). MPs counted, physically (shape, colour, size) chemically characterized by stereomicroscope Fourier-transform infrared spectroscopy (FT-IR). Fiber fragments found lakes, while only fibers sediment....

10.4194/trjfas27368 article EN Turkish Journal of Fisheries and Aquatic Sciences 2024-12-25
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