Elif Neyran Soylu

Verified

Elif verified their affiliation via an institutional email.

Learn more

Verified

Elif verified their affiliation via an institutional email.

Learn more

• Prof. Dr.
• Professor at Giresun University

Diatom indices are used to assess the quality of aquatic plants in sustainable river ecosystems. The traditional assessment of diatom indices involves complicated and lengthy process steps. Today, artificial intelligence-based modelling plays a key role in overcoming this complexity. The aim of this work is to model selected diatom indices Biologic...

Green algae (Chlorophyta) are photosynthetic organisms, the majority of which inhabit freshwater environments, with only a small proportion found in saltwater. This group represents a diverse range of species. Therefore, due to the morphological similarities and small size of different species, molecular characterization is essential for accurate i...

The rapid emergence of antibiotic resistance has become a global crisis, threatening public health, food security, and agriculture. Particularly, the control of zoonotic diseases and the assurance of microbial safety in animal products necessitate the development of new and sustainable solutions. In this context, research on antimicrobial agents de...

Azinphos methyl (S-3,4-dihydro-4-oxo-1,2,3-benzotriazin-3-ylmethyl O,O-dimethyl phosphorodithioate) and azinphos ethyl (S-3,4-dihydro-4 - oxo-1,2,3-benzotriazin-3-ylmethyl O,O-diethyl phosphorodithioate) are pesticides containing two phosphorus. These pollutants are widely used as agricultural pesticides and acaricides and are used as broad-spectru...

Phytoplankton is the most suitable quality element for assessing the ecological status of standing surface water bodies such as lakes and reservoirs. In order to evaluate changes in these water bodies, it is important to determine the reference areas (REFS) and maximum ecological potential areas (MEPS) so as to explain the deviations from the refer...

Malathion is one of the insecticides commonly used to control hazelnut pests in hazelnut orchards in Giresun region. This insecticide pollutes lakes, rivers and sea waters by drifting from the soil with rain, flood and snow waters. In this study, Scenedesmus sp. cultures were prepared in BG-11 medium for use in laboratory experiments. It was aimed...

The present study aimed to contribute to the algal flora of Türkiye by Bacillariophyta (diatom) as new records for the Turkish freshwater. Phytobenthos and phytoplankton were sampled three times (spring, summer, and autumn) a year between 2017 and 2019. Samples of the phytoplankton were collected with a water sampler from three depths, and samples...

Trabzon Maçka ilçesi Galyan deresi üzerinde kurulan ve Trabzon ilinin içme suyu olarak büyük bir kısmını karşılayan Atasu barajı fitoplanktonunun mevsimsel değişimi Eylül 2021-Ağustos 2022 tarihleri arasında belirlenen 5 istasyondan aylık periyotlar şeklinde alınan su örneklerinin sayım ve teşhisi yapılmıştır. Bir yıllık süreçte baraj gölündeki alg...

Paleolimnological assessment of Ladik Lake (N Turkey) using diatoms was carried out along a 62 cm-long sediment core recovered from the southeastern part of the lake. The chronology of the sediments was established by 137 Cs-210 Pb dating. Accordingly, three major chronostratigraphical diatom assemblage zones (DAZ) were defined by the CONISS (const...

The study aimed to determine free radical scavenging activity, trace elements, and the heavy metals contents of the pigments extracted from Donax trunculus shells obtained at the Giresun the Black Sea coast. Free radical scavenging activity was determined by spectrophotometric DPPH and ABTS methods. Heavy metal and trace elements of the pigments we...

Turkish lakes which have different morphometry and hydrology, have a great potential that supports distinct algal diversity as a result of different climate types and geographical variation (latitudinal, longitudinal, and altitudinal gradients). However, the algal flora of Turkey has not been completed, and the number of new taxa has increased due...

The present study aimed to contribute to the algal flora of Turkey by Bacillariophyta (diatom) as new records for the Turkish freshwater algal flora. Phytobenthos and phytoplankton were sampled three times (spring, summer, and autumn) a year between 2017 and 2019. Samples of the phytoplankton were collected with a water sampler from three depths, a...

To determine the drivers of phytoplankton biomass, we collected standardized morphometric, physical, and biological data in 230 lakes across the Mediterranean, Continental, and Boreal climatic zones of the European continent. Multilinear regression models tested on this snapshot of mostly eutrophic lakes (median total phosphorus [TP] = 0.06 and tot...

The composition and seasonal variations of the epilithic diatoms of Harşit Stream were studied using samples collected from five stations between September 2018 and August 2020. The counting and identification of the stone samples taken periodically from the five determined stations were made. Thereby, seasonal variations of the algae were determin...

We explained the methodology used in setting the basic and supplementary measures for diffuse pollutants at Küçük Menderes Basin. As the majority of diffuse pollutants arise from livestock breeding and agricultural activities, we focused to propose measures regarded with tackling the pollution from agricultural activities. The types and distributio...

Turkish lakes have different morphometry and hydrology as a result of different climate types and noticeable altitude differences, which provide different habitats for algal diversity. In the last 40 years, the total number of algae taxa in the flora of Turkey has increased due to the studies on phytoplankton taxonomy and ecology. This study aims t...

There is an increasing number of taxonomic and ecologic studies on phytoplankton, one of the biological quality elements according to the EU Water Framework Directive, in Turkey day by day. Abstract We explained the methodology used in setting the basic and supplementary measures for diffuse pollutants at Küçük Menderes Basin. As the majority of di...

Turkish lakes have different morphometric and hydrological features as a result of different climates and noticeable altitude differences in Turkey that are necessary conditions to occur different habitats for algal diversity. The total number of algae taxa in the flora of Turkey has increased due to the growing number of studies on phytoplankto...

Turkish lakes have different morphometry and hydrology as a result of different climate types and noticeable altitude differences, which provide different habitats for algal diversity. In the last 40 years, the total number of algae taxa in the flora of Turkey has increased due to the studies on phytoplankton taxonomy and ecology. This study aim...

There is an increasing number of taxonomic and ecologic studies on phytoplankton, one of the biological quality elements according to the EU Water Framework Directive, in Turkey day by day. This study was carried on from 2017 to 2019 in 275 lakes lies in 25 river basins of Turkey with the aim of examining the taxonomy and biological diversity of th...

Although planktonic algae are a basic component of freshwater ecosystems, studies on their diversity and species distribution are still not in satisfactory numbers. This study aims to contribute to Turkish freshwater algal flora particularly with the new records reported. A total of 158 Charophyta taxa were determined in the study conducted from...

A year-long study from May 2018 to April 2019 investigated the spatio-temporal changes in water quality of seven major rivers in the Giresun Province in northeastern Turkey. The results of the analysis were classified according to WHO limit values for drinking water and water quality classes were determined with respect to the Turkish Surface Water...

Sediment core samples (H002, H003, H005 and H006) recovered from the basin of Lake Hazar located in the South East Region of Turkey. Core samples were collected from the four sampling stations by UWITEC corer to determine diatom flora distribution in Lake Hazar. Diatom counts and identifications were made from the sediments sampled at 1-2 cm interv...

Under ongoing climate change and increasing anthropogenic activity, which continuously challenge ecosystem resilience, an in-depth understanding of ecological processes is urgently needed. Lakes, as providers of numerous ecosystem services, face multiple stressors that threaten their functioning. Harmful cyanobacterial blooms are a persistent probl...

Insight into how environmental change determines the production and distribution of cyanobacterial toxins is necessary for risk assessment. Management guidelines currently focus on hepatotoxins (microcystins). Increasing attention is given to other classes, such as neurotoxins (e.g., anatoxin-a) and cytotoxins (e.g., cylindrospermopsin) due to thei...

Insight into how environmental change determines the production and distribution ofcyanobacterial toxins is necessary for risk assessment. Management guidelines currently focus onhepatotoxins (microcystins). Increasing attention is given to other classes, such as neurotoxins (e.g.,anatoxin-a) and cytotoxins (e.g., cylindrospermopsin) due to their p...

The majority of phycological studies in Turkey focus on seasonal changes of phytoplankton and phytobenthos in lentic and lotic systems, while very few studies related to counting diatoms in sediment cores obtained as a result of paleolimnological work have been published. In this paleolimlogical study, seventeen (16+1) n e w diatom records for fres...

Giresun ili derelerinden izole edilen ve kültür şartları altında BG11 besi yerinde yetiştirilen Scenedesmus sp. türünün DPPH (1,1-difenil-2-pikrilhidrazil) serbest radikal süpürücü aktivite tayini için spektrofotometrik DPPH yöntemi kullanılmıştır. 10-3 M DPPH etanol çözeltisinden 1 mL alınıp 3 mL ekstrakt çözeltisi ilave edilip vorteks ile çalkala...

The trophic diatom index (TDI) and the biological diatom index (BDI) provide information about the trophic levels in the aquatic ecosystem. The pollution tolerance index (PTI) and saprobic index (SI) use diatoms to assess the health of aquatic ecosystems. We collected epilithic diatoms from the Pazarsuyu Stream located in the Turkish province of Gi...

Spatio-temporal changes in taxonomic composition and structure of epilithic algalcommunity with some physicochemical features of the Batlama stream were assessed between June 2013 and May 2014 at the intertidal zone of the Batlama Stream, Giresun, Turkey. A total of 90 taxa were identified belonging to division of Bacillariophyta (80 taxa), Eugleno...

In order to evaluate the composition and seasonal variations of the epilithic diatoms in Yedikır Dam Lake were studied using samples collected from the stones in the barrier area between November 2004 and April 2006. The diatom communities were diverse; 88 taxa were found, belonging to the Bacillariophyta. Cymbella minuta, Cyclotella ocellata and E...

zet Giresun ili derelerinden izole edilen ve kültür şartları altında BG11 besi yerinde yetiştirilen Scenedesmus sp. türünün DPPH (1,1-difenil-2-pikrilhidrazil) serbest radikal süpürücü aktivite tayini için spektrofotometrik DPPH yöntemi kullanılmıştır. 10-3 M DPPH etanol çözeltisinden 1 mL alınıp 3 mL ekstrakt çözeltisi ilave edilip vorteks ile çal...

Phytoplankton species composition, seasonal variation and the factors effecting the variation were studied in this study one-year period, from June 2010 to May 2011. Water samples were collected monthly from four stations. Algae of the stream was determined by the enumaration and identification of the collected samples. A total of 53 phytoplankton...

zet Giresun İli Karadeniz sahil bölgesinden toplanan Ulva lactuca'da bulunan toplam toplam antioksidan kapasitesini belirlemek amacıyla 2016 Ağustos ayında örnekler toplanmıştır. Toplanan örnekler metanol, etanol ve su çözücüleri içerisinde çözülerek üç ayrı ekstrakt hazırlanmıştır. Hazırlanan ekstraktlarda ferrotiyosiyanat metoduna göre toplam ant...

Count data become widely available in many diciplines. The most popular distribution for modeling count data is the Poisson distribution which assume equidispersion (Variance is equal to the mean). Since observed count data often exhibit over or under dispersion, Poisson models become less ideal for modeling. To deal with a wide range of dispersion...

Flood pulse influence on phytoplankton communities of the Aksu Stream, Giresun, Turkey were studied between December 2008 and December 2009. The phytoplankton communities consisted of 54 species. The number of species and diversity of phytoplankton showed seasonal variation, being high in rainy season. As a consequence of the flood which occurred t...

The composition and seasonal variation of the algal turf of Lake Ladik were studied using samples collected from one station between June 2000 and May 2001. 50 taxa of diatoms were identified in the epiphyton. Navicula veneta, N. halophila, Nitzschia fonticola and Aulacoseira distans were particularly important on turf community. During the October...

Ondokuz Mayıs Üniversitesitesi I. Göletinde Mart 2004- Şubat 2005 tarihleri arasında yapılmış olan bu çalışmada, fitoplankton kompozisyonu ve mevsimsel değişimi iki istasyonda incelenmiştir. Gölet fitoplanktonunda tespit edilen toplam 68 taksondan 33 tanesi Chlorophyta, 16 tanesi Euglenophyta, 8 tanesi Bacillariophyta, 4 tanesi Cyanophyta, 3 tanesi...

Molecular techniques are used today in many areas and have increased the confi dence level of studies. Th e aim of the study was to compare the classical morphological characters of coccoid green algae under fi eld and culture conditions by using modern molecular analysis. To achieve this aim, we fi rst isolated the coccoid green algae from Liman a...

The chlorococcal chlorophyte community structure and seasonal variations in terms of species composition and abundance of dominant species in Tatli{dotless}, Gi{dotless}ci{dotless}, Liman, and Cernek lakes (Samsun, Turkey) were investigated between 1996 and 2003. Species richness and diversity (Shannon-Weaver, H') were measured monthly from station...

The samples were taken monthly from the lake between January 2001- November 2001 from the surface of Potamogeton perfoliatus Linnaeus, between March 2001-May 2001 from Potamogeton pectinatus Linnaeus to determine the epiphytic diatom flora. There have been 30 taxa on P. perfoliatus, 23 taxa on P. pectinatus belonging to epiphytic diatom flora in th...

The seasonal succession, composition and diversity of phytoplankton in a eutrophic lagoon (Liman lake) were studied between January 2002 and November 2003. Samples were collected from surface water and deeper (1 m depth) at stations and species diversity (Shannon-Weaver, H) and evenness were calculated. Shannon Diversty was similar at Station 1 and...

This study on epipelic algal flora and its seasonal variations in the Kucukcekmece Lagoon, Turkey was carried out between May 2001 and June 2002. A total of 109 species were identified, most of which belonged to Bacillariophyta (64 taxa). Other taxa identified included members of Cyanophyta (26), Chlorophyta (13), Euglenophyta (5) and Phaeophyta (1...

The seasonal variation of the epipelic algae of Gıcı Lake and the factors affecting the variation were studied between February 2000-January 2001. A total of 58 taxa belonging to Bacillariophyta, Chlorophyta, Cyanophyta and Euglenophyta were identified. Bacillariophyta members were dominant during the study period. In this divisio, Navicula gregari...

The composition and seasonal variations of epiphytic diatoms from Lake Ladik were studied using samples collected from one station between June 2000 and May 2001. 50 taxa of diatoms were identified in the epiphyton. Gomphonema olivaceum, Gomphonema minutum and Nitzschia fonticola were particularly important on Cladophora. During the winter several...

This work analyses the seasonality of phytoplankton (species richness, biovolume, diversity, abundance and dominance) associated with some physical, chemical and climatic variables of shallow turbid lake (Tatlι Lake, Turkey) between February 2000 and April 2001. Samples were collected monthly from the two stations from the surface (0-20 cm). Specie...

We surveyed the epizoic algae growing on Emys orbicularis from several sites in the Central Anatolia region of Turkey during the nesting season (May-August) of 2005. Fifty-three algae species were found on carapaces of thirty-five E. Orbicularis, with considerable variation in the algal communities from different sites.

The seasonal variations in the diversity, composition and species richness of phytoplankton in a shallow lake (Gici Lake, Turkey) were studied between January 2000 and April 2001. Samples were collected monthly from surface water and deeper (1m depth) stations and species richness and diversity (Shannon-Wiener, H') were measured. Indices were calcu...

Epiphytic algae growing on the submersed macrophyte Nuphar lutea L. were surveyed in three lakes in June 2000 and May 2001. All total, forty species of Bacillariophyta were identified, and the species composition of this algal flora differed among the three lakes. Navicula cryptocephnla, Navicula veneta, Cymbella affinis and Licmophora gracilis var...

Between June 1999 and May 2000, the epipelic algal flora and its seasonal variations in the River Yeşilirmak were investigated. A total of 69 species were identified, most of which belonged to the Bacillariophyta. Other taxonomic groups present were Chlorophyta, Cyanoprokaryota and Euglenophyta. Pennate diatoms, especially Nitzschia palea, Navicula...

The composition and seasonal variations of phytoplankton of Lake Ladik were studied between June 2000 and May 2001. The taxa identified included members of Cyanoprokaryota (8), Bacillariophyta (46), Chlorophyta (54), Euglenophyta (30), Cryptophyta (2), Dinophyta (1) and Xanthophyta (1). In the phytoplankton, Cyclotella ocellata, Aulacoseria distans...

The composition and seasonal variations of the epilithic diatoms of Lake Ladik were studied using samples collected from one station between June 2000 and May 2001. Fifty-one taxa were identified belonging to the Bacillariophyta in the epilithon. Aulacoseria distans (Ehr.) Simonsen, Cymbella affinis Kütz, C. prostrata (Berkeley) Cleve, Navicula cry...