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Assessment of eutrophication in the Berdan River Basin (Türkiye) using various classification tools

ÖZGÜR ÖZBAY | İSMAİL AKÇAY | MEHMET TAHİR ALP

The trophic status of the Berdan River Basin was determined using univariate and multivariate classification tools. The results indicated that the water quality/ trophic status of a downstream section of the Berdan River was characterized as “poor/eutrophic” due to anthropogenic inputs from agricultural, industrial and domestic wastewater discharges. Strong and positive correlations between TRIX values and concentrations of eutrophication parameters suggest that nutrient enrichment of water in the Berdan River during its flow will result in further eutrophication in the coastal region of the N ...Daha fazlası

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Women’s Successful Aging

FAHRİ ÖZSUNGUR

The authors investigated women’s successful aging in the context of well-being and satisfaction with life. This study was conducted with 129 women in Women’s Rest Homes in the province of Adana, Turkey. It was found that satisfaction with life (SL) was significantly associated with successful aging (SAS) (β = .350; p = .005; t = 2.833), and SAS (β = .358; p = .008; t = 2.632) and SL (β = .669; p ≤ 0.001; t = 4.774) were significantly associated with women’s well-being (WBI). Women in the 60–66 age range had significantly higher SAS (md = 1.30314; p = .004) and struggle against difficulties (SA ...Daha fazlası

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Nutrient inputs from two major rivers into the cilician basin of the north-eastern Mediterranean Sea.

MEHMET TÜRKERİ | SUAT MARANKOZ | ÖZGÜR ÖZBAY | İSMAİL AKÇAY | MEHMET TAHİR ALP

In this study, dissolved nutrients concentrations were measured monthly at downstream points of the two regional rivers (the Berdan and Göksu rivers) flowing into the Cilician Basin of the North-eastern (NE) Mediterranean Sea.The dissolved nutrients data obtained between September 2021 and August 2022 were used to determine riverine nutrient fluxes. This study showed that spatial and temporal variations were recorded in nutrients concentrations of the two regional rivers with the maximum values consistently recorded in the Berdan River having lower volume fluxes.The annual nutrient inputs of t ...Daha fazlası

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Effects Of The Feeds Containing Different Plant Protein Sources On Growth Performance And Body Composition Of Rainbow Trout (Oncorhynchus mykiss W )

MURAT BİLGÜVEN | MUSTAFA BARIŞ

In this study, a total of 720 rainbow trout (Oncorhyncus mykiss) having 50.08±0.19 g of average initial weight were used to compare of usage of the soybean meal, sunflower meal, canola meal and cottonseed meal as the best plant protein source. Four different feeds which contain soybean meal (SBM), canola meal (CM), sunflower meal (SFM) and cotton seed meal were used, respectively. Four trial groups were tested in triplicate during 12 weeks. Experimental diets were prepared as isonitrogenous significantly difference among the groups for average feed consumption, condition factor and survival ra ...Daha fazlası

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Heavy metal levels in economically important fish species sold by fishermen in Karatas (Adana / TURKEY)

FAHRİ KARAYAKAR | UMUT IŞIK | BEDİİ CİCİK

In this study, heavy metal (Cu, Zn, Cr, Cd, Pb and As) levels in the muscle of economically important fish species (Trachurus mediterraneus, Sparus aurata and Pegusa lascaris) living in different water columns in the North-East Mediterranean Sea were measured. Fish were bought from local fishermen between September 2016-August 2017 in Karatas¸ region (Adana, Turkey). Levels of Cd, Cr, Pb and As were highest in the muscle of T. mediterraneus, S. aurata and P. lascaris in the autumn season, while Cu levels were highest in T. mediterraneus and S. aurata in the spring season. The lowest and highes ...Daha fazlası

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Effects of Dietary Cottonseed and/or Canola Oil Inclusion on the Growth Performance, FA Composition and Organ Histology of the Juvenile Rainbow Trout, Oncorhynchus mykiss

KENAN ENGİN

This study aimed at demonstrating the effects of total and 50% dietary fish oil replacement by cotton seed and canola oils and a mixture of these vegetable oils (VOs) on growth, tissue fatty acid composition and histology of digestive organs in the juvenile rainbow trout for 84 days. Five iso-nitrogenous and lipidic diets were formulated to replace dietary fish oil (FO) totally by cotton seed oil (CSO), canola oil (CO) and an equal or 50% FO/ 50% VO mixture. Duplicate groups of 50 fish (~15 g) were fed two times daily to apparent satiation. Growth performance, feed efficiency and viscerosomati ...Daha fazlası

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Determination of Heavy Metal Levels in Sediment and Macroalgae (Ulva Sp and Enteromorpha Sp.) on the Mersin Coast.

MEHMET TAHİR ALP | ÖZGÜR ÖZBAY | MEHMET ALİ SUNGUR

Mersin ili sınırları içerisinde halk tarafından yoğun olarak kullanılan dört plajda makroskobik yeşil algler (Ulva sp. ve Enteromorpha sp.) ve sedimentte ağır metallerin birikiminin belirlenmesi amacıyla, Alüminyum (Al), Krom (Cr), Mangan (Mn), Demir (Fe), Nikel (Ni), Bakır (Cu), Çinko (Zn), Kurşun (Pb), ve Kadmiyum (Cd) düzeyleri aylık olarak tespit edilmiştir. Yapılan analizler sonucunda Cu ve Zn istasyon 1, Cd istasyon 2 ve Al, Mn, Fe ve Ni ise istasyon 4’de alglerde en yüksek birikimi gösteren ağır metaller olmuşlardır. Ağır metallerin birikim düzeylerinin alglerde ve sedimentte sıralanmas ...Daha fazlası

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The effects of fish meal replacement by yeast based nucleotides on growth body composition and digestive enzyme activity in rainbow trout juveniles Oncorhynchus mykiss

ARZU ÖZLÜER HUNT | Ferbal Özkan Yılmaz | Kenan Engin | Serap Yalın | Nefise Özlen Şahin

This 60 day study investigated the effects of organically certified nucleotide yeast-derived protein source (Nu-Pro®) on growth, feed efficiency, fillet proximate composition and digestive enzymes in rainbow trout (Onchorhyncus mykiss). Diets were isonitrogenous and isocaloric. Three experimental diets wherein 20%, 40% and 60% of the fish meal content was replaced by Nu-Pro®, were compared to the control diet in which the crude protein content was anchovy fish meal and corn gluten meal. The rainbow trout (initial weight 27 g/fish) were fed twice daily in 200-l Aqaria. Live weight gain increase ...Daha fazlası

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Potential of Cottonseed Oil as Fish Oil Replacer in European Sea Bass Feed Formulation

KENAN ENGİN

Triplicate groups of 20 European sea bass (35 g) were fed five diets in which the added lipid was 100% fish oil (FO), 40% (CSO40), 60% (CSO60), 80% (CSO80) and 100% (CSO100) refined cottonseed oil (CSO), for a period of 120 days. Overall fish growth, feed conversion ratio and protein utilization were unaffected by dietary treatment, but hepatosomatic and visceral fat indexes increased with increasing dietary CSO. Fillet fatty acid composition of total lipids reflected the fatty acids in the test diets. The monounsaturated fatty acids were significantly higher in fillet of fish fed diet FO, CSO ...Daha fazlası

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Unveiling the Innovation Nexus: How Workplace Belongingness Shapes Tomorrow's Breakthroughs through Corporate Stakeholder Responsibility

FAHRİ ÖZSUNGUR

The study seeks to investigate how corporate stakeholder responsibility acts as a mediator, elucidating the impact of workplace belongingness on both exploratory innovation and exploitative innovation within the retail sector. In 2020, this research enlisted 171 executives from retail businesses registered with the Adana Chamber of Commerce in Adana, Turkey. Employing structural equation modeling, the study analyzed data through the lens of social exchange, stakeholder theory, and organizational change management theories. According to the research findings, it was determined that workplace be ...Daha fazlası

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The Evaluation of the Effect of a Newly Designed Computer Game on 7th Grade Students’ Motivation Towards Science and Aggression

FUAT SERKAN SAY

In this study, it is aimed to design a computer game for the 7th grade Science lesson and evaluate the effect of the computer game on students’ motivation and aggression. The quasi-experimental method has been selected as a quantitative method of research. The study group of the research is comprised of 444 7th grade students in total studying in 7 different schools chosen from each region of Turkey. In this context, while there is no interference in one of the two 7th grade classrooms from each school, the other is sustained with a computer game as an additional material to the teaching proce ...Daha fazlası

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Investigation of Heavy Metal Levels in Sediment of the Berdan River (Tarsus- Mersin).

ÖZGÜR ÖZBAY | MEHMET TAHİR ALP

Bu çalışmada Mersin İlinin önemli akarsularından birisi olan Berdan Çayında mevsimsel olarak toplanan sediment örneklerinde Kadmiyum (Cd), Krom (Cr), Mangan (Mn), Nikel (Ni), Çinko (Zn), Bakır (Cu), Kurşun (Pb), Demir (Fe) ve Alüminyum (Al) gibi ağır metallerin birikim düzeyleri araştırılmıştır. Çalışma sonuçlarına göre sedimentte ağır metal birikim düzeyleri, Fe; 18521,91 μg/g, Al;12907,70 μg/g, Mn; 377,40 μg/g, Ni; 167,68 μg/g, Cr; 57,81 μg/g, Zn; 45,59 μg/g, Cu; 28,38 μg/g, Pb; 22,82 μg/g ve Cd; 4,54 μg/g olarak tespit edilmiş ve ağır metaller Fe>Al>Mn>Ni>Cr>Zn>Cu>Pb>Cd olarak sıralama göst ...Daha fazlası

6698 sayılı Kişisel Verilerin Korunması Kanunu kapsamında yükümlülüklerimiz ve çerez politikamız hakkında bilgi sahibi olmak için alttaki bağlantıyı kullanabilirsiniz.

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