Sedat Gündoğdu | Cukurova University (original) (raw)

Papers by Sedat Gündoğdu

Sustainability, 2021

Rural areas are exposed to severe environmental pollution issues fed by industrial and agricultur... more Rural areas are exposed to severe environmental pollution issues fed by industrial and agricultural activities combined with poor waste and sanitation management practices, struggling to achieve the United Nations’ Sustainable Development Goals (SDGs) in line with Agenda 2030. Rural communities are examined through a “dual approach” as both contributors and receivers of plastic pollution leakage into the natural environment (through the air–water–soil–biota nexus). Despite the emerging trend of plastic pollution research, in this paper, we identify few studies investigating rural communities. Therefore, proxy analysis of peer-reviewed literature is required to outline the significant gaps related to plastic pollution and plastic waste management issues in rural regions. This work focuses on key stages such as (i) plastic pollution effects on rural communities, (ii) plastic pollution generated by rural communities, (iii) the development of a rural waste management sector in low- and ...

The aim of this study is to compare Bayesian and Classical estimation for describing the growth c... more The aim of this study is to compare Bayesian and Classical estimation for describing the growth curves of Brushtooth Lizardfish (Saurida lessepsianus Russell, Golani & Tikochinski 2015). Classical nonlinear regression method and Bayesian estimation method were used to obtain the estimation of the components of the von Bertalanffy growth model. The estimated parameters of the von Bertalanffy equation via two methods showed that Bayesian estimation is much better than Classical nonlinear regression in estimating growth parameters and reducing variation of growth model parameters.

Emerging Contaminants and Associated Treatment Technologies, 2022

Journal of Food Composition and Analysis, 2022

Pakistan Journal of Zoology, 2016

This study aims to determine the factors affecting von Bertalanffy growth factors and to demonstr... more This study aims to determine the factors affecting von Bertalanffy growth factors and to demonstrate the relationships between these factors. Accordingly, 65 sets of growth data belonging to 43 studies on the subject of the growth of four Mullidae species prevalent in the Mediterranean (Mullus barbatus, Mullus surmuletus, Upeneus pori and Upeneus moluccensis) and the Black Sea (M. barbatus, M. surmuletus). It was discovered that the growth parameters, theoretically affected by similar factors, are not affected by every factor at the same time. It was also discovered that the sample structure given in the studies also affects the biological validity of the parameter estimations.

Journal of Fisheriessciences.com, 2016

Invasive species may exhibit dynamics different to those exhibited in their native range owing to... more Invasive species may exhibit dynamics different to those exhibited in their native range owing to the lack of native competitors and predators. The blue crab (Callinectes sapidus) is native to the western Atlantic, but is an invasive species in the Mediterranean. We examined the dynamics of growth and mortality of an invasive population of blue crab in the Yumurtalik Cove, Turkey (North Eastern Mediterranean) between January and December 1997. The seasonal von Bertalanffy growth parameters were quantified by Hoenig method using the LFDA (Length Frequency Distribution Analysis) for each sex. Carapace widths (n=908) ranged from 3.20 to 19 cm. The von Bertalanffy growth constants in length was CW 20.95 cm ∞ = , K = 0.5 year−1 , 0 t = 0.36 - year , Cw 20.66cm ∞ = for males; Cw 20.66cm ∞ = , K = 0.74year−1 , 0 t = 0.24 − year , C = 0 , WP = 0 for females; and CL 20.16cm ∞ = , K = 0.81year−1 , 0 t = 0.22 − year , C = 0 and WP = 0 for total individuals including juveniles as well as sexual...

Environmental Science and Pollution Research, 2021

Turkey is one of the major plastic pollution sources in the Mediterranean and the Black Sea. This... more Turkey is one of the major plastic pollution sources in the Mediterranean and the Black Sea. This review summarizes present information, data, and legislation on plastic pollution in Turkish aquatic ecosystems. According to results derived from reviewed studies, both macro- and microplastic pollutions were documented in Turkish aquatic ecosystems. Most of the studies on plastic pollution in Turkish waters were performed in the marine environment while only four were conducted in freshwater environments. Spatially, the majority of these studies, which were on levels in the marine environment, were conducted on the northeastern Mediterranean coasts of Turkey, especially Iskenderun and Mersin Bays. Additional studies were carried out on either the ingestion/presence/impact of microplastics by/to aquatic organisms or the entanglement of marine organisms in plastics. There were also studies assessing the microplastic content of commercial salt, and another has reported microplastic presence in traditional stuffed mussels sold in Turkish streets. Some studies were conducted on microplastic presence and/or their removal in wastewater treatment plants in Mersin, Adana, Mugla, and Istanbul cities. Macro- and microliter loading from a few Turkish rivers to the sea was also estimated. All these investigations indicate that Turkish aquatic environments have significant plastic pollution problems, which were also underlined by the legislative studies. The need for further studies in this field still exists, especially in freshwater environments.

$Research paper thumbnail of A study on the characteristics of introduced Pearl Mullet population (Chalcalburnus Tarichi, Pallas, 1811) in Lake Er\c{c}ek$

This study examines features such as the population structure, growth and reproduction of the pea... more This study examines features such as the population structure, growth and reproduction of the pearl mullet captured in the Lake Ercek. Between the dates January 2008 and January 2010 a total number of 527 individual were sampled through using trammel net and mesh size of 20,22 and 24 mm of fish net. The fork length, total and gonad weight, sex and fecundity of the pearl mullet which were captured has been identified; their age determination has been done through their operculum and otolith; their condition factor and gonadosomatic index value has been estimated.

Marine Pollution Bulletin, 2021

Turkey became a major importer of global plastic waste after China banned plastic imports on Janu... more Turkey became a major importer of global plastic waste after China banned plastic imports on January 1, 2018. Turkey imported only 261,864 tonnes of plastic waste annually before the ban, but annual imports increased to 772,831 tonnes by 2020. Turkey recently implemented restrictions on importing plastic waste (quotas, %1 contamination limit, banned mixed plastic waste imports), yet illegal dumping and burning is widely reported. Turkey ranks second in Europe and seventh worldwide for plastics production, yet current domestic waste management and recycling programs cannot handle domestic plastic waste generation. Roughly 90% of municipal solid waste produced in Turkey ends up in landfills. Plastic waste mismanagement results in plastic leakage into the Mediterranean Sea with Turkey contributing the highest share (16.8%) of European marine plastic pollution. With this latest import restriction, Turkey now has an opportunity to strengthen and improve its own domestic waste management infrastructure to reduce indiscriminate plastic marine pollution.

Food Bioscience, 2020

Abstract Microplastic (MP) pollution is a ubiquitous and persistent pollution problem in the mari... more Abstract Microplastic (MP) pollution is a ubiquitous and persistent pollution problem in the marine environment that is threatening marine life. In this study, the presence of MP in stuffed mussels sold in 5 Turkish cities was examined. The microplastic content of ready-to-eat stuffed mussels purchased from 41 different vendors in 5 different cities was studied using chemical digestion, density separation, and μ-Raman spectroscopy. The average amount of MP in the stuffed mussels was determined as 0.6 ± 0.1 (median = 0.6; IQR = 0.7) MP mussel−1. Among the 5 cities, the highest number of MP was found in Istanbul with 0.9 ± 0.1 MP mussel−1, while the lowest number was found in Bodrum with 0.3 ± 0.1 MP mussel−1. The MP were identified as fiber type 62.7% and fragment type 37.3%. According to the μ-Raman analysis, the largest amounts of identified polymer types were polyethylene 35% and polypropylene 15%. Stuffed mussels purchased from 92% of the vendors contained MP. If an average consumer eats 100 g of stuffed mussels/portion, it is estimated that there is a risk of consuming 5.8 MP/portion. MP pollution is a serious problem in seafood. This study showed that stuffed mussels could be one way in which humans are exposed to MP. Due to the possible increase of MP load in the over-processing of seafood products, the results suggested that the quantification of MP should also be included as a component of food security systems.

AQUATIC RESEARCH, 2018

Estimation of the growth parameters of fish are vital to understand their biology. For this purpo... more Estimation of the growth parameters of fish are vital to understand their biology. For this purpose we collected studies that performed up to 2017 regarding the growth of species belonging to the Diplodus genus. Data were gathered from sources like Web of Science (webofknowledge.com), Scopus (scopus.com), Google Scholar (scholar.google.com), Researchgate (researchgate.com) and Academia (academia.edu). 79 datasets from 52 different studies belongs to 10 species were compiled. Reviewed studies were published between 1982-2017 and were performed in 26 different regions. It was determined that the most frequently studied species was D. vulgaris (n=23). Among growth parameters, it was determined that there is a negative relationship between K and L ∞ , and K and t max , there is a positive relationship between L ∞ and L max. It was also found that there is a negative relationship between K and L ∞ vs latitude.

The Journal of The Textile Institute, 2020

The ubiquity of plastics in the environment poses a significant risk for both human health and na... more The ubiquity of plastics in the environment poses a significant risk for both human health and natural ecosystems. Especially the fiber type plastics have a quite high share among these plastics. The textile industry is one of the most important sources of fibers. Recycling is one of the solutions offered to reduce the environmental impact of textile materials. In this study, the release of fibers from the knitted fabrics produced from recycled (R-PET) and virgin polyester (PES) yarns was investigated. Knitted fabrics were washed three times under the same washing conditions according to the TS EN ISO 105-C06 standard by James H. Heal Gyrowash washing machine. It was determined that R-PET knitted fabrics released almost 2.3 times more fibers (4489.93 fiber L À1 ; 368094.07 fiber kg À1) than the virgin PES fabrics (2034.26 fiber L À1 ; 167436.58 fiber kg À1). The amount of the released fibers showed a significant reduction with an increase in the number of washing cycles for both R-PET and virgin PES samples. This study showed that the knitted fabrics produced from R-PET released more fiber having the shorter length as compared to virgin PES.

Ege Journal of Fisheries and Aquatic Sciences, 2017

Microplastic pollution is a global problem. The Mediterranean Sea, especially, has high pressure ... more Microplastic pollution is a global problem. The Mediterranean Sea, especially, has high pressure of pollution as it is enclosed by highly populated and industrialized countries. In this study, we have determined the level of microplastic pollution in the Iskenderun Bay, located in the Northeastern Levantine coast of Turkey. The average level of microplastic has been determined to be 1,067,120 particles/km 2 at fourteen stations. The highest level has been determined at the M4 station in the middle of the bay (with 1820 items; 2,888,889 particles/km 2), and the lowest level has been found at the M11 station (62 items; 98,412 particles/km 2). As a result of this study, it was determined that the microplastic pollution level in the Iskenderun Bay is higher than the other regions of the Mediterranean Sea.

Natural and Engineering Sciences, 2018

Fifteen specimens of the big-scale sand smelt, Atherina boyeri were caught by a single trawl haul... more Fifteen specimens of the big-scale sand smelt, Atherina boyeri were caught by a single trawl haul with a net mesh size of 3 mm on February 2017 from the Seyhan Dam Reservoir (South Anatolia, Adana/Turkey). In this study the big-scale sand smelt, A. boyeri, was recorded for the first time in the Seyhan Dam Reservoir. In addition, some morphometric and meristic measurements of A. boyeri were given and these values were compared to populations in two different lakes. Furthermore, the possible ecological effects of A. boyeri on Seyhan Dam Reservoir were briefly discussed.