Predicting the effects of sediment based internal nutrient loads on eutrophication in Küçükçekmece Lagoon for rehabilitation planning

Gürevin, Cenk; Ertürk, Ali; Albay, Meriç

doi:10.1016/j.ijsrc.2016.08.002

Cited by 9 publications

(2 citation statements)

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“…The Küçükçekmece Lagoon on the southwest coast Cotton buds in a coastal lagoon Akarsu of Istanbul is a special wetland with an area of 15.22 km 2 , a maximum depth of 20 m, and a volume of 145 million m 3 , located in the west of Istanbul and connected to the Sea of Marmara by a narrow channel (Sönmez and Sivri, 2022). The water resources of Küçükçekmece Lake includes underground springs as well as the Ispartakule (10,017 m), Nakkaşdere (35,564 m), and Sazlıdere (10,017 m) streams (Gürevin et al, 2017). Although water renewal rates are low during the summer season due to the lack of freshwater inflows, the lagoon has a better chance of recovering in autumn for the aquatic ecosystem and water quality, and its profile becomes relatively homogeneous (Taner et al, 2011).…”

Section: Study Areamentioning

confidence: 99%

Cotton buds: The new villain of the marine litter story in the coastal lagoon

Akarsu

2023

Ocean Coast. Res.

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Plastic bags, bottles, packing tapes, and fishing lines are at the forefront of the discussion on plastic pollution in the oceans. However, scientific interest on the role of cotton buds in such context is rapidly increasing, as these objects continue to be widely used and discarded improperly. Therefore, this study aimed to determine the abundance and fate of cotton buds as a case study in the Küçükçekmece Lagoon. At two sampling stations, the pebbly beach and the rocky beach, a total of 854 cotton buds were found over the course of six months with an average value of 71.16 litters m -2 per month. The similarity of months of occurrence in summer and autumn was statistically significant. However, in November and December, when meteorological conditions were more severe, significant similarity was observed. Furthermore, the results of the potential environmental hazard, risk assessment, and carbonyl index were used to provide answers to the main problems of cotton bud pollution. Consequently, the hazard level was classified as either III or IV and the risk level was determined unfriendly. In total, 44.5% of the samples had a high level of oxidation. EDX analysis also confirmed that the biofilm influenced the accumulation of metals on the plastic surface. Overall, the results have addressed the issues that should be considered in improving the management strategies for plastics, which can be implemented to reduce the environmental impact of plastics and achieved the main objective of raising awareness on the accumulation of plastic waste generated by anthropogenic activities in coastal areas.

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Section: Study Areamentioning

confidence: 99%

Cotton buds: The new villain of the marine litter story in the coastal lagoon

Akarsu

2023

Ocean Coast. Res.

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“…Numerical models are now widely used to simulate phytoplankton blooms and possible hypoxia (or anoxia) under the influence of various nutrient sources and to forecast scenarios of nutrient load reduction for oligotrophication purposes (Ménesguen et al, 2018). Using an ecological model coupled with an early diagenetic model, Soetaert and Middelburg (2009) and Gürevin et al (2017) have shown how important it is to take benthic nutrient loads into account in order to rehabilitate eutrophic coastal ecosystems. Sedimentary biogeochemical processes must be considered when assessing risks of hypoxia caused by the sedimentation of phytoplankton blooms (Testa et al, 2014).…”

Section: Introductionmentioning

confidence: 99%