The present study aimed to determine the heavy metal cadmium (Cd), chromium (Cr), nickel (Ni), lead (Pb) and mercury (Hg) accumulations in muscle tissues, gills, gonads, liver, and other visceral organs (liver) of whiting fish (Merlanguis merlangus euxinus Nordmann, 1840) samples obtained by hunting from the Sinop (Black Sea) coasts. The mean cadmium value in muscle tissue, which concerns public health, was found to be 1.07±0.02 µg.kg-1, the chromium value was found to be 1.48±0.07 µg.kg-1, the nickel value was found to be 1.77±0.14 µg.kg-1, the lead value was found to be 5.38±0.29 µg.kg-1 while the mercury value was determined only in the gill and could not be determined in organs, and since it was below the limit values declared by international organizations for all metals, it was determined that it would not create adverse effects for human consumption. Also, examining the order of accumulation of heavy metals in tissues and organs from highest to lowest, it was sorted as liver> visceral organ> gill> muscle> gonad for cadmium; visceral organ> gill> muscle> liver> gonad for chromium; visceral organ> gill> liver> muscle> gonad for nickel; gill> visceral organ> liver> muscle> gonad for lead, while the mercury accumulation was detected only in the gill. Also, the data obtained as a result of the analyses made in the gonad is an important determination in terms of the effects of heavy metals on the reproduction of the species, as well as on the continuity of the population. Since the values determined in the other analyzed tissues were below the limit values reported by international organizations, the results showed that they do not pose any threat to human health in terms of workplace and time, type, and determined heavy metals.

Bu çalışmada, tarım arazilerinin değerine etki eden faktörlerin belirlenmesi ve bu faktörlerin değer üzerindeki etki oranlarının tespit edilmesi amaçlanmıştır. Bu kapsamda, Ankara ili Evren ilçesinde gayeli örnekleme yöntemi ile belirlenen 104 adet işletme ile anket çalışması yapılmış ve tarım arazilerinin değerine etki eden faktörlerle ilgili görüşleri alınmıştır. Elde edilen verilerin analizinde AHP yöntemi kullanılmıştır. Araştırma sonucuna göre arazi değerini etkileyen faktörler, arazi verimliliği %19,63, arazi genişliği %9,60, arazi şekli %4,47, arazi eğimi %3,63, arazinin yola uzaklığı %2,57, arazinin yerleşim yerine uzaklığı %2,84, arazinin sulama olanakları %30,38, arazi satışının hareketli olması %3,31, arazinin kadastro görmüş olması %2,70, arazinin yola cepheli olması %2,80 ve arazinin toprak yapısı %18,06 olarak tespit edilmiştir. Bu doğrultuda, tarım arazilerinin üretim kabiliyetlerine yönelik faktörlerin değer üzerinde daha etkili olduğu sonucuna ulaşılmıştır.

In July 2017, three specimens of an alien fish species were caught by the amateur fishermen in Kızılırmak River at Sivas city center. One of the fish specimens was taken from the fishermen for ichthyologic examination. The morphological, metric (23 features) and meristic characters (13 features) of this specimen were determined. The alien fish is with ovoid shape and flattened laterally. Mouth is in a sub-ventral position. The tooth row is double. Teeth formula are 3,2 / 2,3 (at first row on maxil) and 2 / 2 (at second row on maxil), 3,3 / 3,4 (at first row on mandibul), 1,1 (at second row on mandibul). The number of rakers on the first gill arch is 33. The scale numbers in line lateral are 107 (on right side) and 103 (on left side). The number of branched rays of dorsal, anal, pectoral, and ventral fins are 14, 24, 14, and 7; respectively. As a result of the evaluation of morphological, metric and meristic characters, it was decided that the alien fish caught from Kızılırmak was Piaractus mesopotamicus (Holmberg, 1887) belonging to the Characidae family. This species is also called as the small-scaled pacu. P. mesopotamicus is not among to native fish fauna of Kızılırmak. It is a fish species which originated from South America and is a tropical freshwater fish. These alien fish specimens which were caught by the amateur fishermen, probably translocated from a hobbyist aquarium to this aquatic system. Both directly and indirectly, invasive fishes affect a wide range of native organisms from zooplankton to mammals across multiple levels of biological organizations ranging from the genome to the ecosystem. This study is the first scientific record for Sivas aquatic systems related to alien fish species.

More than 1000 thermal and mineral water springs with temperatures from 20°C to102°C occur in Turkey. Kangal Balikli Hot Spring is known as psoriasis treatment center is one of the most important among these springs. The main scope of this research was to determine geological, hydrogeological and biological properties and water chemistry of the psoriasis treatment center and the stream running alongside the thermal pools. The spring water is an isothermal-hypotonic and oligometalic mineral water, having average of electrical conductivity: 530 μS cm-1, temperature: 35°C, CO2 8.70 mg l-1, pH 7.30 and O2 4 mg l-1. Calcium, magnesium and bicarbonates are dominant. Neither the chemical figures nor the temperature (35±1°C) of the water shows seasonal change. There are two fish species, Garra rufa and Cyprinion macrostomus, that adapted living at 35°C water temperature. The mean fork length and body weight of the fish living in the psoriasis treatment center is significantly lower than those living at the stream. Some of the fish in the pools showed symptoms of illness such as exophthalmus, scale loose, skin ulceration, pale gills, and bloated appearance. Gut analysis revealed that both species have been feeding on algae, insect parts, fish scales, and debris. In most cases the guts of fish caught in the pools were either empty or had very little content in it. Zooplanktons had little species and were not recorded frequently.

Helminthiasis is an important parasitic disease, many of which are zoonotic, particularly common in developing countries and, in countries with hot and humid climates. Intestinal parasites can cause significant manifestations at all levels of the gastrointestinal tract, as well as anemia and growth retardation. This study aims to demonstrate the anti-helminthic effect of Consolida orientalis on Caenorhabditis elegans, which is a helminth model, and introduce new chemotherapeutic candidate substances with anti-helminthic effect to the literature by identifying possible active ingredients with GC-MS analysis. In our study, flower, leaf, stem and aerial part plant extracts of Consolida orientalis were used at 40 mg/mL, 20 mg/mL, 10 mg/mL, 5 mg/mL, 2.5 mg/mL, 1.25 mg/mL concentrations. In addition, possible active ingredients found in plant extracts were determined by GC-MS analysis. As a result of the study, it was determined that the aerial part, leaf and stem extract of the first four concentrates (40 mg/mL, 20 mg/mL, 10 mg/mL, 5 mg/mL) of Consolida orientalis were more effective than pyrantel pamoate at a concentration of 5 mg/mL. According to our study findings, chemotherapeutics such as Dihidrocarvone and 2(3H)-Benzoxazolone with new antihelmintic-antiparasitic activity are thought to contribute to further research.

The study was carried out to the effects of different plant densities and nitrogen levels on okra yield and plant development. Field trials were conducted in two locations, the training fields of the Ege University, Ödemiş Research and Training area, and Ege University Faculty of Agriculture, Menemen Research and Training Farm. The field layout was a split-plot design with 3 replicates, where main plots consisted of nitrogen applications and sub-plots of plant densities. Fertilizer was applied in the form of Triple Superphosphate, Potassium Sulfate, Urea and Ammonium Nitrate. Five different nitrogen levels (F1: 0, F2: 40, F3: 80; F4: 120 and F5: 160 kg N ha-1) and two different rows spacing (PD1: 15 cm×70 cm and PD2: 25 cm×70 cm) have been tested. Yield and yield components, plant height at flowering, height of the first fruits, the number of leaves, the number of branches, the number of days from sowing to first flowering, the number of days from sowing to first harvest, plant height, foliation status, total yield, yield of plant, average fruit weight, fruit length, fruit diameter have been noted in the field experiments. Total yield ranged from 5923.8 to 12888.9 kg ha-1 at the Ödemiş location, while it was 3363.3-5009.2 kg ha-1 at the Menemen location. In conclusion, the highest yield is taken from F2 in both plant densities in Ödemiş. In Menemen, the highest yield is taken from the dose of F3 (80 kg Nha-1) and F4 (120 kg Nha-1).

As it is common in tropical and temperate zones, mullet species constitute the most important fish species caught along the coast and estuaries of Turkey. In terms of ecology, tourism and and fish productivity (52 kg/ha), Koycegiz-Dalyan Lagoon Ecosystem (KDLES) is the most important lagoon, with a 5500 ha surface area, is the Mediterranean Coast of Turkey. In the dalyan (barrier fish trap) systems; approximately 225 tons (80-405 tons) of mullets are caught to obtain 5 tons of dried fish eggs per year. Seventy percent of fish production in the lagoon is composed of mullets. The mullet samples were collected monthly between October 1992 and September 1994 from eight stations (one of them is a marine station) by trammel nets. The ages were determined using by scales anda ge composition varied form 0 to 6 ages. Species composition of 1159 sampled individuals were proportionally determined as Mugil cephalus 45%, Liza aurata 35%, Liza saliens 14%, Liza ramada 12%, Chelon labrasus 6%. The growth performance indices calculated from von Bertalanffy growth parameters using by all individuals for the M. cephalus, L. aurata, L. saliens, L. ramada and C. labrasus were determined as 2.957, 2.866, 2.692 and 2.719, respectively. The highest growth performance index was calculated for M. cephalus. The growth performance indeces of mullet species in Köyceğiz-Dalyan Lagoon Ecosystem were found around the world averages.

Günümüzde artan nüfusun beslenme ihtiyacı birim alandan alınan ürün miktarının yani verimin arttırılması ile mümkündür. Ancak en az verim ve üretimin arttırılması kadar elde edilen ürünlerin uygun şekilde değerlendirilmesi ve tüketime sunuluncaya kadar depolanması da önemli bir konudur. Depolamadaki amaç, ürünün özelliklerini ve tazeliğini korumaktır. Ancak uygun koşullar sağlanmadan yapılan depolamalar büyük miktarda kalitatif ve kantitatif kayıplara neden olmaktadır. Bu kayıplar ürüne uygun depolama koşulları ve depo yönetimiyle azaltılabilir. Bu çalışmada Toprak Mahsulleri Ofisi Hayrabolu Şube Müdürlüğü Bölgesinde önemli bir üretim payına sahip olan buğdayın depolanmasında MAYDÜ kullanımının depolama koşulları ve ürün kalitesi üzerine etkileri incelenmiştir. Çalışma sonuçlarına göre MAYDÜ’ de depolamaya etki eden etmenler ve buğday kalite özellikleri değerlendirildiğinde bu depoların kısa süreli depolamalar da kullanılması tavsiye edilebilir.

Mushrooms have been used as food and medicinal purposes for centuries. In this study, some edible Ascomycota were collected in 2018 and 2019 from Niğde, Turkey. Molecular identifications of the samples were performed afterward. PCR products were sent for sequence analysis after ITS fragments were amplified with suitable primers concerning DNA isolation of samples. The obtained data were compared with the Genbank database for samples’ determination. The mushroom samples were determined to be Terfezia claveryi Chatin and Morchella esculenta (L.) Pers. Samples were extracted by ethanol and methanol to determine antimicrobial activity using the disc diffusion method. Antimicrobial zones against microorganisms were measured. Then DPPH radical scavenging effects and total phenolic content of T. claveryi and M. esculenta mushroom samples were studied. The highest antimicrobial activity was observed in ethanol extracts of M. esculenta. When the DPPH radical scavenging activities are taken into account, the activity is increased depending on the concentration. The highest DPPH scavenging activity was found in the extract of M. esculenta with 40.86%. It was determined that the total phenolic substances in methanol extracts of mushroom samples varies between 533.28 ± 1,15-537.34 ±2.20 μg GAE / mg extract.

Türkiye, sahip olduğu klimatolojik özellikler sayesinde üzüm yetiştirilmesine uygun bir ülkedir. Türkiye’nin verimli topraklarında bol miktarda üzüm üretilmesine ve bağ alanı bakımından dünyanın önde gelen ülkelerinden biri olmasına rağmen üretilen üzümlerin ancak %11 kadarının şarap üretiminde değerlendirildiği bilinmektedir. Türkiye’de şarap sektörünün her aşamasında karşılaşılan zorlukların, kısaca şarap bilimi olarak tanımlanan önoloji eğitimine de yansıdığı ve şarap konusunda kalifiye eleman yetiştirilen okulların sayıca az olduğu görülmektedir. Oysaki Türkiye’nin bağ alanı ve üzüm üretim miktarı açısından en yakın rakiplerinin yer aldığı Avrupa kıtasında durum oldukça farklıdır. Söz konusu ülkelerde önoloji eğitimi büyük önem arz etmekte ve önoloji eğitimini tamamlayanlara önolog unvanı verilmektedir. İçerik analizi yöntemiyle hazırlanan bu çalışmanın amacı, Avrupa’da verilen önoloji eğitimi ile Türkiye’de verilen önolojiye yönelik eğitimi mukayese ederek Türkiye’deki önoloji eğitimi için bazı öneriler ortaya koymaktır. Yapılan çalışma neticesinde; Türkiye’de önoloji eğitiminin, farklı pek çok gerekçe ile ihmal edilmiş bir eğitim alanı olduğu, lisans, yüksek lisans ve doktora düzeylerinde önoloji eğitimi verilmediği, önlisans düzeyinde ise sadece bir devlet üniversitesinde şarap üretim teknolojisi eğitimi verildiği sonuçlarına ulaşılmıştır. Çalışmanın alanyazına, sonraki araştırmacılara, şarap sektörüne ve özellikle şarapla ilgili eğitim veren kurumlara katkı sağlayacağı düşünülmektedir.