Banu Kutlu - Academia.edu (original) (raw)

Papers by Banu Kutlu

Polish Journal of Environmental Studies, Dec 19, 2022

Freshwater resources worldwide are affected by various factors resulting from intensive anthropog... more Freshwater resources worldwide are affected by various factors resulting from intensive anthropogenic activities [1]. These lotic ecosystems are among the freshwater bodies most vulnerable to pollution being responsible for the transport of industrial and municipal effluents and the flow from agricultural areas [2-3]. In addition, pollution and anthropogenic activities directly affect the water body due to the settlement of rivers. In addition, pollution sources may be pointed or distributed throughout the region with a scattered flow regime. In addition, many environmental problems, leachate from mining areas, agricultural irrigation, sewage, and heavy metals from wastes are pollution to water bodies [4]. The wastewater treatment plants built to prevent pollution are economically unviable, lead to water quality degradation, and reduce biodiversity [5]. Due to their toxicity and bioaccumulation ability; heavy metals are considered one of the most persistent pollutants in aquatic ecosystems [6]. While most heavy metals are considered toxic at higher concentrations, some of them have effects, albeit minor, on aquatic life. The pathway through the food chain poses significant environmental and health risks to invertebrates, fish, and humans [7-9]. Heavy metal pollution resulting from

Water Environment Research

Water, which is very important for life and civilizations on Earth, has been a source of life for... more Water, which is very important for life and civilizations on Earth, has been a source of life for all living things. However, freshwater resources gradually decrease due to climate change, pollution, and population growth. Water pollution is the quality changes that occur due to various activities of people, change the chemical, biological, and physical properties of water, restrict or prevent its use, and disrupt ecological balances. The water quality criteria determined to keep this pollution under control ensure the safe use of water. Water quality observations have gained more importance today due to intense environmental concerns and water pollution. This situation revealed the necessity of water quality assessment for water source use. In this study, the CNN‐LSTM‐based hybrid model was proposed to assess water quality. The proposed model was compared with AdaBoost, DT, GNB, kNN, LGBM, RF, and LSTM according to accuracy, precision, recall, F‐score, and AUC. The proposed model h...

Iranian Journal of Fisheries Sciences, Oct 10, 2012

Phytoplankton growth and microzooplankton grazing were investigated at one station in the Homa La... more Phytoplankton growth and microzooplankton grazing were investigated at one station in the Homa Lagoon from February to January in 2006-2007. Our results showed significant seasonal variations in phytoplankton dynamics. Microzooplankton was mainly composed of dinoflagellates and tintinnid ciliates and nauplii. Microzooplankton grazing increased with increasing of temperature. Grazing rate was maximum levels in spring and summer. Microphytoplankton, which dominated the total algal biomass and production, were characterized by the proliferation of several chain-forming diatoms. Small heterotrophic flagellates and aloricate ciliates were the main controllers of phytoplankton. Phytoplankton represented a significant for micrograzers, which grazing represented 20-120% of diatom and cynabacteria algal production during 2006-2007. Microzooplankton has, however, a relatively high impact on microphytoplankton, as > 45% of microalgal production was consumed throughout the year. These results suggest that the low grazing was one of the factors contributing to the development of the spring bloom. All of seasonal bases, the phytoplankton production were grazed by microzooplankton in summer, autumn and winterspring seasons have been changing between 20%-120%. The seasonal variation in the microzooplankton grazing pressure seems to result from the dominant size class of the phytoplankton community of this lagoon diatom and cynabacteria.

Gazi Üniversitesi Orman Fakültesi dergisi, Mar 23, 2018

Aim of the study: The objectives of this study are to observe the monthly and annual changes in w... more Aim of the study: The objectives of this study are to observe the monthly and annual changes in water samples using physical-chemical methods in order to determine the water quality properties, to reveal pollution problems, to determine the suitability of water quality for aquatic life and to classify the quality of water in accordance with the Surface Water Quality Management Regulation's Inland Surface Water Classes criteria. Area of the study: Lake Tecer is located in the southeastern area of Sivas city and at the end of Brook Tecer, a branch of the Kızılırmak. The lake has a mean depth of 2.4 m and is fed by surface waters and snowmelt. Material and methods: The study period was from March 2011 to February 2012. Samples analysed for several chemical and physical parameters representing water quality were collected monthly over a period of 12 months. Main results: It was observed that the condition of the lake in terms of water quality is good. According to the Classification of the Intra-Continental Water Resources in the WPCR, the lake shows Class I, II and III water quality characteristics. Research highlights: In order to protect the water quality of this water source, to reduce further pollution and to sustain the natural ecological balance consisting of natural fish stocks and other aquatic animals, this lake should be monitored continuously.

Journal of materials science & engineering, 2011

Sigma Journal of Engineering and Natural Sciences, 2021

The aim of this study is to detect the heavy metal contamination in the sediment of Batlama Strea... more The aim of this study is to detect the heavy metal contamination in the sediment of Batlama Stream and to evaluate the anthropogenic effect. Field studies were seasonally carried out in 3 stations between June 2014 and July 2015. In the sampling studies carried out in Batlama Stream, contamination factor (CF), enrichment factor (EF), potential ecological risk factor (Er i), lowest effect level (LEL), geoaccumulation index (Igeo) contamination indicators were used in order to evaluate sediment contamination. In Batlama Stream, average heavy metal level of three stations was detected in mg/dry kg in the sediment as Cr 7.

Environmental Monitoring and Assessment, Jun 1, 2023

Turkish Journal of Agriculture: Food Science and Technology, Jul 11, 2015

In year 2013, onsite seasonal measurements have been carried out in 4 different points of Birecik... more In year 2013, onsite seasonal measurements have been carried out in 4 different points of Birecik Reservoir, and water samples have been taken from surface and different depths. Physical and chemical parameters have been investigated in taken water samples. The result of analysis were obtained in the following range pH (6.98-9), temperature (9.9-26 °C), electrical conductivity (275-373 µs/cm), sodium (19.93-22.06 mg/L), potassium (1.-2.2 mg/L), chloride/11.68-21.4, hardness (179-210 mg/L), calcium (41.66-52.9 mg/L), magnesium ((17-18.35 mg/L), sulphate (27.92-43.48 mg/L), dissolved oxygen (7.92-8.83 mg/L), chemical oxygen (0.25-8.70 mg/L), nitrate (0.62-2.48 mg/L), nitrate (0.001-0.008), ammonium (0.01-0.07), phosphate (0.001-0.031 mg/L). The samples were compared with standard values recommended by world health (WHO). The study finalize that Birecik reservoir which was declared to be a threat to the water quality should be arrested at denitrification and nutrient control to halt the degradation of the water.

Oceanological and Hydrobiological Studies

Surface water samples from the area of Munzur Stream in Türkiye (a Ramsar site) were evaluated fo... more Surface water samples from the area of Munzur Stream in Türkiye (a Ramsar site) were evaluated for their suitability for irrigation and drinking purposes using different water quality indices. The human health risks were assessed as well. The study was conducted over a period of 24 months from January 2019 to December 2021 by taking samples from nine stations every month in order to determine the water quality of Munzur Stream, located in Tunceli. According to the results, Munzur Stream is in good condition in terms of the quality of drinking water and irrigation water. The concentrations of heavy metals such as Cu, Ni, Fe and Hg were high, though the water quality parameter according to Türkiye Ministry of Forestry and Water Affairs Surface Water Quality Regulations (TSWQR) was significantly lower than the permitted limits. In Munzur Stream, the irrigation water for all stations was reported to be excellent, good and suitable in terms of SAR, Na% and MH, respectively. The principal...

Biota Neotropica, 2007

The occurrence of the freshwater jellyfish Craspedacusta sowerbii (=sowerbyi) Lankester, 1880 was... more The occurrence of the freshwater jellyfish Craspedacusta sowerbii (=sowerbyi) Lankester, 1880 was recorded in April 2006 in the Lagoa Misteriosa water body, a calcareous lake (doline) in Mato Grosso do Sul State, Brazil. Only Rotifera composed the zooplankton community was composed only of Rotifera and the environment was meso-eutrophic system. The nomenclature of C. sowerbii is discussed with regard to the use of the correct spelling and an alternative one. The distributions of C. sowerbii in Brazil include eight states and in South America the distribution includes four countries.

Bu çalışma Tunceli (Pülümür ve Munzur) İl’inde yapılan amatör balıkçılığın güncel durumunu belirl... more Bu çalışma Tunceli (Pülümür ve Munzur) İl’inde yapılan amatör balıkçılığın güncel durumunu belirlemek amacıyla gerçekleştirilmiştir. Araştırma sahasında Ocak 2018 – Mart 2018 periyodunda amatör balıkçılık yapan 95 birey tesadüfi olarak seçilmiş ve gönüllülük esasıyla 38 soru içeren ankete katılımları sağlanarak orijinal veriler elde edilmiştir. Örneklem büyüklüğünün belirlenmesinde Avrupa için belirlenen %4,8 değeri kullanılmıştır. Amatör olta balıkçıları ile yapılan anket çalışması sonucunda balık avlanma boy ve adetleri hakkında bilgisi olup olmadığı değişkenlerin dağılımı ki-kare testi ile belirlenmiş ve yanılma olasılığı ? = 0,05 seçilmiştir. Sonuç olarak balık avlanma boy ve adetleri hakkında bilgisi olan ve olmayanlar karşılaştırıldığında eğitim durumu değişkeninde (?2:9,434; p:0,009), aylık gelire göre (?2:12,525; p: 0,006), avlanmada harcadıkları zamana göre (?2:11,935; p:0,03), balıkçıların tercih ettikleri hedef türlere göre (?2:14,903; p:0,001) ve balık miktarında yıllara bağlı olarak artış veya azalışa göre (?2:11,248; p:0,04) istatistiksel olarak farklılık gözlenirken diğer değişkenlerde herhangi bir farklılık gözlenmemiştir. Tunceli İl’indeki amatör olta balıkçılığının genel durumunun belirlendiği bu çalışma bölgede ilk defa yapılmıştır ve daha sonra yapılacak olan çalışmalara bir öncü niteliği taşımaktadır. Bu nedenle amatör balıkçılık yapan kişilerin konu hakkında bilgilendirilmeleri ve sürdürülebilir balıkçılığın sağlanması açısından doğaya zarar verilmeden yapılması sağlanmalıdır.This study has been conducted to establish the current state of amateur fisheries performed in the province of Tunceli (Pulumur and Munzur). 95 individuals who were engaged in amateur fisheries in the period of January 2018 – March 2018 in the research zone were chosen randomly and the original data were obtained ensuring their voluntary participation in the 38-item survey. in the specification of the survey magnitude, 4.8% value determined for Europe is used due to its geographical proximity. As a result of the survey carried out with amateur anglers, the distribution of the variables regarding whether they have information about fishing height and numbers were established through the chi-square test and fallacy probability was determined as ? = 0.05. As a result, a statistically significant difference was observed in the education variable (?2:9.434; p:0.009), monthly income (?2:12.525; p: 0.006), time spent for fisheries (?2:11.935; p:0.03), target types the fishermen prefer (?2:14.903; p:0.001) and increase or decrease in the quantity of fish (?2:11.248; p:0.04), whereas there is significant difference in the other variables when those having information or not about the fishing height and numbers. the research in which the general overview of amateur fisheries is established in the province of Tunceli has been carried out for the first time in the region and is pioneer for the future studies. So, those engaged in amateur fisheries be informed about the issue and it should be performed without harming nature to ensure sustainable fisheries

Yunus Araştırma Bülteni, 2016

This study was carried out to monitor water quality in Uzuncayir Dam Lake from May 2013 to March ... more This study was carried out to monitor water quality in Uzuncayir Dam Lake from May 2013 to March 2014 based on monthly sample monitoring from ten stations. Temperature, dissolved oxygen, pH, biological oxygen demand (BOD), electrical conductivity, total dissolved solids, total hardness, total alkalinity, specific conductance, calcium (Ca), magnesium (Mg), orthophosphate-phosphorus (PO 4 -P), ammonium (NH 4 ), nitrate (NO 3 ), nitrite (NO 2 ), chlorophyll a (Chl-a) parameters were investigated during study. Data obtained were evaluated by using multivariate statistical analysis, cluster analysis, principal component analysis and factor analysis. Uzuncayir Dam Lake is defined as a hard water lake because of the high pH and high electrical conductivity and total solids content as the result of the high content of dissolved anions and cations. Principal components (PCA) analysis revealed in two different clusters to the similarities among the stations reflected different physico-chemical properties and the level of pollution in Uzuncayir Dam Lake. Three potential factors were determined explaining 100% of the total variation of the data. In component 1, 17.7 % of all variation had Mg, NH 4 and NO 2 . According to the component 2 and 3 the results showed that 34.95 % of all variation stem from agricultural drainage and nutrient, from physical parameters of 68.2 %. In analyses of cluster, one group (10 station) was found to affect directly the activities of domestic and agricultural land. Based on the Surface Water Quality Management (A and B group), it was concluded that Uzuncayir Dam Lake had high quality and slightly contaminated and the appropriate structure for many activities such as agricultural irrigation, drinking water supply, trout and other fish production.

International Journal of Pure and Applied Sciences

Su Ürünleri Dergisi, 2007

İzmir Körfezi'nde (Ege Denizi) yer alan Homa Dalyan'ında 1998–1999 yılları arasında 12 ar... more İzmir Körfezi'nde (Ege Denizi) yer alan Homa Dalyan'ında 1998–1999 yılları arasında 12 araştırma gezisi; aylık olarak iki istasyonda gerçekleştirildi. Çevre parametrelerinden; sıcaklık, tuzluluk, çözünmüş oksijen, pH, nitrat, nitrit, amonyum, fosfat, silikat konsantrasyonları ölçüldü. Nütrient zenginleştirme denemeleri alınan su örnekleri sıcaklığı benzetilmiş ortamda (bioassay) aylık olarak gerçekleştirildi. Fitoplankton komünitesinin büyüme cevabı invivo klorofil a ölçümleriyle yapıldı ve fitoplankton büyüme hızıyla ifade edildi. Homa Dalyan'ının fitoplankton tür kompozisyonu bakımından yıl boyunca genellikle diyatomlarca zengin olduğu, bununla beraber zaman zaman da dinophycea ve ciliata üyelerinin nicel açıdan baskın olduğu gözlendi. Toksik türlere rastlanmadı ve sonuçlar çevre parametreleriyle birlikte tartışıldı. Süspanse kil minareleri içeren dalyan suyunda hücre abundansları çok düşüktü. Gelecekte mikrozooplankton otlamasının belirlenmesi; hem primer üretimin öne...

Marine Science and Technology Bulletin, 2016

The objectives of this study were to observe the monthly and annual changes in water samples thro... more The objectives of this study were to observe the monthly and annual changes in water samples through physico-chemical methods, to determine the water quality properties, to reveal the pollution problems, to determine the suitability level in terms of aquatic life, and to classify the quality of water in accordance with the ISWC criteria. This study has been carried out through monthly sampling during April 2011-March 2014 in 3 stations at Lake Delice. The samples have been immediately taken to the laboratories for analyses. 1st station is at the Western side of the lake (roadside), 2nd point is at entrance point of Brook Araba into the lake (northwestern side of the lake), and the 3rd station is located at Southwestern side of the lake (the deepest point). It has been determined that the lake is suitable for aquaculture of cold water fish in winter and spring months and for warm-water fish in summer and autumn months. Furthermore, the pollution of this water resource should be preve...

Homa lagoon found in the Izmir bay, Aegean Sea, is important because it is the last lagoon in whi... more Homa lagoon found in the Izmir bay, Aegean Sea, is important because it is the last lagoon in which fishing activities are carried out. Hantzschia amphioxys species, on which this study was carried on, are benthic diatoms and they are isolated from Homa Lagoon. The Monod equation expressing the nutrient dependency of the growth rates can also be used for carrying capacity (with different parameter values; chl-a max, K s ı). Temporal changes of the calculated maximum chl-a concentrations (carrying capacity) was 115 µg chl-a/L by determining the hyperbolical relations between the maximum biomass levels (biomass carrying capacity) and nutrient concentrations obtained from the phytoplankton growth graphs.

Marine diatom Chaetoceros gracilis has been investigated for its potential use as food in maricul... more Marine diatom Chaetoceros gracilis has been investigated for its potential use as food in mariculture. In this study, we investigated the effects of temperature, salinity and nutrient on the growth of C. gracilis. The possibility for nutrient limitation to affect C. gracilis was assessed from two different ecosystems (Izmir Bay and Homa Lagoon). Our goal was to determine the growth rate of all nutrients and the maximum levels of the C. gracilis phytoplankton biomass (the maximum biomass carrying capacity) on the extent of its full growth and the level at which the nutrient restrictive growth keeps the biomass (biomass carrying capacity) and the nutrient(s) that sustain its year long growth. Nutrients significantly increased Izmir Bay and Homa Lagoon water's carrying capacity throughout the year and it was found out that the nutrients which restricted the carrying capacity and the growth rate were nitrogenous compounds.

Turkish Journal of Fisheries and Aquatic Sciences, 2015

The objective of this study was to evaluate the effects of copper sulfate (CuSO4.(5 H2O)) on the ... more The objective of this study was to evaluate the effects of copper sulfate (CuSO4.(5 H2O)) on the Nile tilapia (Oreochromis niloticus). Median (LC50) and minimum (LC1O) lethal concentrations of copper sulfate on Nile tilapia were determined via acute tests. LC50 values of copper sulfate for the 48 , 72 and 96 hours were 13.15, 12.95 and 12.85 mg/L, respectively. LC10 values of 12, 11 and 9.5 mg/L were obtained for similar exposure periods (48 , 72 and 96 hours), respectively. The effects of 1.5 mg/L dose of copper sulfate on growth rate, gross clinical observations and blood biochemical parameters of Nile tilapia were evaluated after 35, 65 and 95 days of exposure periods. The differences of growth rates between control and copper sulfate-exposed groups were not significant (P>0.05) at the end of 35, 65 and 95 days. Continuous exposure of Nile tilapia to 1.5 mg/L concentration of copper sulfate in water solution for three periods (35, 65 and 95 days) decreased the total protein, a...