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  Subjects -> ANIMAL WELFARE (Total: 107 journals)
Showing 1 - 22 of 22 Journals sorted alphabetically
Acrocephalus     Open Access   (Followers: 8)
Advances in Botanical Research     Full-text available via subscription   (Followers: 1)
African Journal of Wildlife Research     Full-text available via subscription   (Followers: 6)
Agrivet : Jurnal Ilmu-Ilmu Pertanian dan Peternakan / Journal of Agricultural Sciences and Veteriner)     Open Access   (Followers: 4)
Alternatives to Laboratory Animals     Full-text available via subscription   (Followers: 9)
Animal - Science Proceedings     Full-text available via subscription   (Followers: 2)
Animal Cognition     Hybrid Journal   (Followers: 20)
Animal Diseases     Open Access  
Animal Frontiers     Hybrid Journal   (Followers: 3)
Animal Nutrition     Open Access   (Followers: 18)
Animal Research International     Full-text available via subscription   (Followers: 3)
Animal Sentience : An Interdisciplinary Journal on Animal Feeling     Open Access   (Followers: 1)
Animal Studies Journal     Open Access   (Followers: 7)
Animal Welfare     Full-text available via subscription   (Followers: 27)
Animals     Open Access   (Followers: 11)
Annual Review of Animal Biosciences     Full-text available via subscription  
Applied Animal Science     Hybrid Journal   (Followers: 1)
Archiva Zootehnica     Open Access  
Archivos de Medicina Veterinaria     Open Access   (Followers: 1)
Asian Journal of Animal and Veterinary Advances     Open Access   (Followers: 8)
Asian Journal of Animal Sciences     Open Access   (Followers: 3)
Asian Journal of Cell Biology     Open Access   (Followers: 4)
Australian Holstein Journal     Full-text available via subscription   (Followers: 1)
Australian Mammalogy     Hybrid Journal   (Followers: 8)
Bangladesh Journal of Animal Science     Open Access   (Followers: 4)
Between the Species     Open Access   (Followers: 2)
Botanical Review     Hybrid Journal   (Followers: 2)
British Poultry Abstracts     Hybrid Journal   (Followers: 3)
Buletin Peternakan : Bulletin of Animal Science     Open Access   (Followers: 1)
Buletin Veteriner Udayana     Open Access   (Followers: 1)
Bulletin of Animal Health and Production in Africa     Full-text available via subscription   (Followers: 3)
Canadian Journal of Animal Science     Hybrid Journal   (Followers: 6)
Companion Animal     Full-text available via subscription   (Followers: 8)
Corpoica Ciencia y Tecnología Agropecuaria     Open Access  
Derecho Animal. Forum of Animal Law Studies     Open Access   (Followers: 1)
Equine Health     Full-text available via subscription   (Followers: 4)
Ethics and Social Welfare     Hybrid Journal   (Followers: 21)
European Journal of Wildlife Research     Hybrid Journal   (Followers: 13)
Global Journal of Animal Scientific Research     Open Access   (Followers: 1)
Hayvansal Üretim     Open Access  
Human-Wildlife Interactions     Open Access  
Indonesian Journal of Animal and Veterinary Sciences     Open Access   (Followers: 1)
International Journal for Parasitology : Parasites and Wildlife     Open Access   (Followers: 2)
International Journal of Health, Animal Science and Food Safety     Open Access   (Followers: 2)
Iranian Journal of Applied Animal Science     Open Access   (Followers: 1)
Italian Journal of Animal Science     Open Access   (Followers: 1)
Journal of Anatolian Environmental and Animal Sciences     Open Access  
Journal of Animal Science and Biotechnology     Open Access   (Followers: 2)
Journal of Animal Science and Products     Open Access  
Journal of Applied Animal Ethics Research     Full-text available via subscription   (Followers: 1)
Journal of Applied Animal Research     Open Access   (Followers: 5)
Journal of Applied Animal Welfare Science     Hybrid Journal   (Followers: 19)
Journal of Botany     Open Access   (Followers: 4)
Journal of Comparative Social Welfare     Hybrid Journal   (Followers: 16)
Journal of Experimental Psychology : Animal Learning and Cognition     Full-text available via subscription   (Followers: 11)
Journal of Pest Science     Hybrid Journal   (Followers: 1)
Journal of Research in Forestry, Wildlife and Environment     Open Access   (Followers: 5)
Journal of Threatened Taxa     Open Access   (Followers: 1)
Journal of Veterinary and Animal Sciences     Open Access  
Journal of Veterinary Internal Medicine     Open Access   (Followers: 29)
Journal of Veterinary Science & Medicine     Open Access  
Journal of Wildlife and Biodiversity     Open Access   (Followers: 4)
Journal of Zoological and Botanical Gardens     Open Access  
Jurnal Agripet     Open Access   (Followers: 1)
Jurnal Ilmu dan Kesehatan Hewan (Veterinary Science and Medicine Journal)     Open Access   (Followers: 1)
Jurnal Ilmu-Ilmu Peternakan     Open Access  
Jurnal Sain Peternakan Indonesia     Open Access  
Jurnal Veteriner     Open Access   (Followers: 1)
Majalah Ilmiah Peternakan     Open Access   (Followers: 1)
Natural History Sciences     Open Access   (Followers: 4)
Nigerian Journal of Animal Science     Full-text available via subscription   (Followers: 1)
Nutrición Animal Tropical     Open Access   (Followers: 3)
Online Journal of Animal and Feed Research     Open Access   (Followers: 1)
Pastoralism : Research, Policy and Practice     Open Access   (Followers: 2)
People and Animals : The International Journal of Research and Practice     Open Access  
Pet Behaviour Science     Open Access   (Followers: 1)
Proceedings of the Vertebrate Pest Conference     Open Access  
Rangifer     Open Access  
Research Journal of Parasitology     Open Access   (Followers: 2)
Revista Brasileira de Higiene e Sanidade Animal     Open Access   (Followers: 1)
Revista Colombiana de Ciencia Animal     Open Access  
Revista Colombiana de Ciencias Pecuarias (Colombian journal of animal science and veterinary medicine)     Open Access   (Followers: 1)
Revista de Producción Animal     Open Access  
Revista de Salud Animal     Open Access  
Revista Mexicana de Ciencias Pecuarias     Open Access   (Followers: 1)
Revue de primatologie     Open Access   (Followers: 1)
RUDN Journal of Agronomy and Animal Industries     Open Access  
Science and Animal Health     Open Access  
Scientific Papers Animal Science and Biotechnologies     Open Access  
Social Choice and Welfare     Hybrid Journal   (Followers: 11)
Society and Animals     Hybrid Journal   (Followers: 14)
South African Journal of Animal Science     Open Access   (Followers: 2)
Spei Domus     Open Access  
TRACE ∴ Finnish Journal for Human-Animal Studies     Open Access   (Followers: 1)
Translational Animal Science     Open Access  
Turkish Journal of Veterinary Research     Open Access  
Uluslararası Tarım ve Yaban Hayatı Bilimleri Dergisi / International Journal of Agricultural and Wildlife Sciences     Open Access  
veterinär spiegel     Hybrid Journal   (Followers: 1)
Veterinary and Animal Science     Open Access  
Veterinary Clinical Pathology     Hybrid Journal   (Followers: 9)
Wartazoa. Indonesian Bulletin of Animal and Veterinary Sciences     Open Access  
Wildfowl     Open Access   (Followers: 11)

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Journal of Anatolian Environmental and Animal Sciences
Number of Followers: 0  

  This is an Open Access Journal Open Access journal
ISSN (Online) 2548-0006
Published by DergiPark Homepage  [187 journals]
  • Erratum

    • Authors: Bülent VEREP
      Abstract: Contains corrections to misspellings made in the previous issue.
      PubDate: Thu, 31 Mar 2022 00:00:00 +030
       
  • Molecular Phylogeny and Historical Biogeography of Petroleuciscus
           (Teleostei: Leuciscidae) Species in Turkey

    • Authors: Gökhan KALAYCI
      Abstract: In this study, phylogenetic relationships of Petroleuciscus species in Turkey were investigated by using mitochondrial cytochrome b (cyt b) (1140 bp). For this purpose, 84 samples from 13 populations for the cyt b gene were sequenced. The result of of genetic analysis, twenty-one haplotypes were identified and overall haplotype diversity was calculated as Hd: 0.921±0.011. The result of phylogenetic analysis of Petroleuciscus species shows the presence of two clades and four haplogroups. First clade includes Petroleuciscus smyrneaus and P. ninae from the Western Anatolia. Second clade indicated that P. borysthenicus consists of Black sea and Marmara Sea drainages and northern of Aegean Sea drainages. Haplotype network analysis and phylogeographic inference show that Petroleuciscus genus was monophyletic in Turkey.
      PubDate: Thu, 31 Mar 2022 00:00:00 +030
       
  • Analysis Of Morphological, Micromorphologica And Molecular Systematic
           Properties Of Rubus L. (Rosaceae) Species In Rize Province

    • Authors: Fatma KUYUMCU; Fatih Şaban BERİŞ, Vagif ATAMOV
      Abstract: Rubus taxa in Rize province were compared morphologically and micromorphological along with molecular systematic of plants in this work. Analysed plant materials were sampled during field studies conducted in 2019. The collected samples were identified according to known methods and were transferred into herbarium plants. A total of 8 taxa belonging to rubus species were found. Plant parts such as stem, leaves and flowers was examined morphologically and micromorphologically under stereo microscope and SEM. Then, plant genomic DNA was isolated from fresh leaf samples by suitable methods to determine ITS profiles. Then the ITS regions were amplified by PCR and sequenced. A phylogenetic tree showing the similarity among this 8 taxa was then created based on the sequence analysis. The stem, leaf trichomes, trichome types and thorn structure were found to be distinctive among these 8 taxa when micromorphological images were examined. As a result of morphological findings, Rubus plants constitute 8 distinct taxons in terms of leaf, fruit, thorn, shape, petal, leaf and leaflet size, structure, number and shape of fruit grains, leaf adaxial and abaxial surface, trichome amount of petal surface, color of fruit and sepals and leaf edge structure. These features were characteristic for all the taxons examined. Molecular data showed that the average base length of rubus taxa was found to be between 709 and 731 bps. Created phylogenetic tree revealed that the taxa closest to the Rosacea family were Rubus hirtus and Rubus tereticaulis while the most distant taxa was Rubus sanctus.
      PubDate: Thu, 31 Mar 2022 00:00:00 +030
       
  • Endemic Plants Detected in Kizilcahamam Soğuksu National Park

    • Authors: Ömer EYÜBOĞLU
      Abstract: This study covers the flora of Soğuksu National Park (Kızılcahamam). By evaluating 1064 plant samples collected in the research area, 74 families, 276 genera, 474 species, 4 subspecies and 3 varieties were determined. Total numbers of taxa are 481. 49 species are endemic for Turkey. According to the flora records and later publications, the number of endemic plants in our country is around 3000 and their ratio to all plants is 33%. Turkey is one of the most important countries in the world in terms of the richness of endemic plants. The most important method of preserving the existing flora and fauna; To increase the number of National Parks and Nature Protection Areas. Because overgrazing, field clearing, unplanned urbanization, tourism, erosion etc. For many reasons, many of our endemic plants are in danger of extinction. Kızılcahamam The endemic plants detected in Kızılcahamam Soğuksu National Park are endemic plants for our country. The endemic plants, the list of which was created with this study, will contribute to the endemic plant map that will be created for our country in the future.
      PubDate: Thu, 31 Mar 2022 00:00:00 +030
       
  • Length based growth of Liocarcinus depurator (Crustacea: Decapoda:
           Brachyura) caugth by beam trawl in the south-east Black Sea

    • Authors: Hatice ONAY; Sabri BİLGİN
      Abstract: This study was carried out to determine the seasonal and non-seasonal growth characteristics of Liocarcinus depurator (Crustacea: Decapod: Brachyura) species caught by beam trawl in the Southeastern Black Sea between December 2012 and November 2013. The samples were taken depth of 0-30+ m by using 2 meters width beam trawl in Iyidere, Cayeli and the Centre Station. In total, 2715 units of L. Depurator was biologically analysed. (39.4 % of them is non ovigerous females, 7.8% of them is ovigerous females and 52.8% of them is male). The width of Karapas for non ovigerous was measured between 6.8- 37.5 mm, ovigerous is between 17.3- 35.0 mm and for male between 10.1- 51.3 mm. L depurator rise and Rn value calculated in the seasonal growth is 0.766 for females and 0.676 for males in the length frequency data whereas it is determined that Rn value calculated as 0.434 for females and 0.597 for males according to the non-seasonal growth model makes better fit in the length frequency data. Seasonal oscillation in the growth curve (C) is determined as 0.703 for females and 0.990 for males. For males it is determined that K = 1.739 year-1, L∞ = 36, 4 mm WP= (0), Φ´= (3.363), for females it is determined that K = 1.692, L∞ = 35. 0 year-1 WP = (4.73), Φ´= (3.317) mm. These results revealed that the L. depurator species showed seasonal growth characteristics in the Black Sea.
      PubDate: Thu, 31 Mar 2022 00:00:00 +030
       
  • Determination of Toxic Impact of Oil Pollution after a Possible Ship
           Accident on the Coastal Area of Sector Kadıköy

    • Authors: Nuket SİVRİ; Serdar YILDIZ, V. Zülal SÖNMEZ, Özkan UĞURLU
      Abstract: Anchorage areas (A, B, C anchor fields) located in Sector Kadıköy in the Bosphorus are the marine areas where the ship traffic is the most intense and has the most complex structure in the Turkish Straits. This study models the acute toxic effect of oil pollution that may occur as a result of a possible crude oil ship accident at the tanker anchorage area located in Sector Kadıköy. To this end, the acute toxicity of crude oil in the marine environment was investigated via the Bacterial Bioluminescence Bioassay test in the laboratory in order to determine the effect of possible oil-based pollution on the marine ecosystem. GNOME Simulation Modeling software was used to model pollution in the study. In the modeling, the marine and coastal areas that will be affected by oil pollution have been determined in consideration of the meteorological and oceanographic data. In the study area, it was observed that the toxic effect of oil could continue even at the last point where crude oil could reach, and the required dilution values were calculated from this point on. There was no statistically significant difference between the acute toxicity test measurement periods. It was determined that the 5-minute exposure time results of the acute toxicity test can be used in petroleum-based contaminations that require the fastest response. This study emphasizes the importance of conducting integrated monitoring with oil pollution specific studies, scenarios and coastal area protection plans in order to protect this special area and not to affect biodiversity.
      PubDate: Thu, 31 Mar 2022 00:00:00 +030
       
  • Current Approaches to Short and Long-Term Storage of Honey Bee Semen

    • Authors: Arda Onur ÖZKÖK
      Abstract: There are many studies on the storage of honey bee semen. Due to its unique structure, bee semen varies according to the storage period but is suitable for short-term storage conditions. However, in terms of long-term storage conditions, developments in mammals have not been caught. It is known that more studies are needed on this subject. The great advantages of semen storage are its effective role in eliminating the problems of inbreeding after a while in pure breed enterprises, increasing the yield characteristics and preventing gene pollution. To solve these problems, beekeepers have to buy breeding queens from abroad with very high costs, and the expected results cannot always be obtained from the bees brought. Especially considering the genetic risks faced by regional breeds in Turkey, it is necessary to preserve semen, to protect colonies in pure breed enterprises, as well as to develop genetically yield characteristics and to prevent inbreeding. It can also prevent the spread of diseases compared to natural mating by contributing to artificial insemination. By improving the storage conditions of honey bee semen, long-term use of semen from well-known colonies will be possible. Producers will be able to benefit from the advantages of artificial insemination at a cheaper cost, with the semen being sent to distant regions as in mammals under appropriate storage conditions. The purpose of this review is to give information about the storage conditions of honeybee semen.
      PubDate: Thu, 31 Mar 2022 00:00:00 +030
       
  • The Difference Between The Response To Glutamate Excitotoxicity and The
           Role Of Ca2+ Channel Blockers in Cortical Neuron and SH-SY5Y Cells
           Cultures

    • Authors: Betül ÇİÇEK; Ali TAGHİZADEHGHALEHJOUGHİ, Ahmet HACIMÜFTÜOĞLU, Aysegul YILMAZ
      Abstract: Cortical neuron and SH-SY5Y cells are widely used in glutamate excitotoxicity studies, but it is unclear which one better reflects this model. Generally, glutamate induces toxicity conditions by leading to L and L/N-Ca2+channels activation and cell death via lethal Ca2+ influx. To evaluate this hypothesis, the effects of L and L/N-Ca2+ channel blockers, lacidipine, and amlodipine under excitotoxic conditions were evaluated. At the same time, in this study, we aimed to determine that these two cell lines better reflect this model. To induce excitotoxicity, cortical neuron and SH-SY5Y cells were incubated with glutamate 10-5 mM. After 30 min incubation with glutamate, different concentration (1, 2 and 4 µg lacidipine and 20, 50 and 100 µM amlodipine) were applied these cells. Possible neuroprotective roles of lacidipine and amlodipine were investigated through cell viability, oxidative stress, and apoptotic alterations. Our results showed that SH-SY5Y cells are the more ideal cell line for oxidative stress-mediated glutamate toxicity. In addition, 4 µg lacidipine and 100 µM amlodipine had significant neuroprotective roles in these cells, but the most protective effect was also determined in SH-SY5Y cells at 100 µM amlodipine. The highest viability rate on cell lines was found at 88,8 % in SH-SY5Y cells treated with 100 μM amlodipine. Results from the TAC, TOS, LDH assays, and flow cytometry analysis were correlated to our MTT results. Taken together, our results indicate that SH-SY5Y cells are more effective at reflecting glutamate-induced excitotoxicity and 100μM amlodipine has a more protective effect in treating this toxicity.
      PubDate: Thu, 31 Mar 2022 00:00:00 +030
       
  • Some Mechanical and Physical Properties of Fiberboard Made from Wood Fiber
           and Waste Carpet-flex

    • Authors: Derya USTAÖMER; Gökay NEMLİ
      Abstract: Recently, because of searching for alternative raw materials in the composite panels production; various materials and different types of wastes are widely evaluated. In this study, some mechanical and physical properties of fiberboard manufactured with beech wood fibers and waste carpet-flex were investigated. The panels were manufactured using urea formaldehyde (UF) and phenol formaldehyde (PF) adhesives. Waste carpet-flex was used as layer in the panel mat for the panel manufacturing. Modulus of rupture (MOR), modulus of elasticity (MOE), water absorption (WA) and thickness swelling (TS) values of these fiberboard panels were determined. As a result of study, it was found that the carpet-flex material and adhesive type affected the investigated properties of the fiberboard panels. The phenol formaldehyde and waste carpet flex usage improved the mechanical and physical properties of fiberboard
      PubDate: Thu, 31 Mar 2022 00:00:00 +030
       
  • Determination of Antioxidant Activity of Various Plant Parts of Scilla
           bifolia L. (Forest Hyacinth)

    • Authors: Özen Yusuf ÖĞRETMEN
      Abstract: Bu çalışma Trabzon ilinin Tonya ilçesine bağlı yaklaşık 1300m rakıma sahip Kadıralak yaylasında yetişen Orman sümbülü (Scilla bifolia L) bitkisinin farklı kısımlarının (skapus, yaprak, çiçek, bulb) antioksidan aktivitesini belirlemek için yapılmıştır. Bitki kısımlarının antioksidan aktiviteleri 2,2-difenil-1-pikrihidrazil (DPPH) radikali süpürücü aktivitesi ve troloks eşdeğeri antioksidan kapasitesi (TEAK) yöntemleri kullanılarak tespit edilmiştir. Elde edilen sonuçlara göre DPPH radikal süpürme aktivitesi ve TEAK skapus>yaprak>çiçek>bulb şeklinde sıralanmış olup, DPPH değerleri sırasıyla %94,20, %92,65, %87,41, %32,01, TEAK miktarları ise sırasıyla 9,32 μmol troloks/g, 9,17 μmol troloks/g, 8,64 μmol troloks/g ve 2,59 μmol troloks/g olarak tespit edilmiştir. Hem DPPH hem de TEAK yönetiminde elde edilen sonuçlar kendi arasında değerlendirildiğinde istatistiksel olarak farklılıklar tespit edilmiştir (p<0,05). Elde edilen sonuçlar neticesinde Scilla bifolia L bitkisinin özellikle skapus ve yaprak kısımlarının önemli derecede antioksidan aktiviteye sahip olduğu belirlenmiştir.
      PubDate: Thu, 31 Mar 2022 00:00:00 +030
       
  • The Effect of Whey on the Immune Parameters of Rainbow Trout (Oncorhynchus
           mykiss)

    • Authors: Remziye Eda YARDIMCI; Emre TURGAY, Sevdan YILMAZ, Can SARVAN, Süheyla KARATAŞ STEINUM
      Abstract: The aim of this study was to investigate the effect of whey on the immune system of cultured rainbow trout (Oncorhynchus mykiss). It was targeted to use whey, which is a by-product of the dairy industry, in the aquaculture industry as a promoter of fish immune system and as a source of fish feed protein. Rainbow trout individuals with an average weight of 70.28 ± 1.50 g were placed in 6 tanks with a stock density of 10 kg/m3. While fish meal (52%) was used as a protein source in the control group feeds, in the experimental group feeds whey powder (48%) was used. The fish were fed these pellet feeds that were isocaloric (21 kj / g) and isonitrogenous (41% protein) for 3 weeks. Blood samples were collected once a week and while hematocrit and hemoglobin values were determined using a fully automated hematology analyzer, standard hemocytometry methods were used in erythrocyte and leukocyte counts. In addition, free radical production and complement 3 concentrations were determined quantitatively. According to the one-way ANOVA analysis, the control group and the experimental group were statistically similar (p> 0,05). However, it was found that C3 complement concentration, which was measured equally at the beginning in the control and experimental groups, showed a statistically significant increase (p <0.05) in the experimental group compared to the control group in the second week. This is the first study in Turkey investigating the effect of using whey in fish feeds on the immune system of fish.
      PubDate: Thu, 31 Mar 2022 00:00:00 +030
       
  • The Determination of Antibiotic Resistance and Biofilm Properties in
           Pseudomonas aeruginosa Isolates from Raw Milk Samples

    • Authors: Sadik SAVAŞAN; Merve Gizem SEZENER
      Abstract: : In this study, it was aimed to investigate the antibiotic resistance and biofilm properties of Pseudomonas aeruginosa isolates isolated from raw milks. A total number of 300 raw milk samples were collected from several dairy plants and vendors in the provinces of Aydın (n=100), İzmir (n=100) and Muğla (n=100) in Turkey. The conventional methods were used for the isolation of suspected Pseudomonas spp. from raw milk samples. A total of 63 suspected Pseudomonas spp. were isolated and these isolates were identified as being P.aeruginosa by PCR. According to PCR results, 24 isolates were identified as P.aeruginosa. The antibiotic resistances of P. aeruginosa against 8 antibiotics were determined by Kirby-Bauer Disc Diffusion method. The antibiotic resistance rates of the isolates among enrofloxacine, ceftriaxone, ciprofloxacin, meropenem, colistin, gentamycin, and azithromycin were found as 20.84%, 75.0%, 4.16%, 37.33%, 8.34%, 12.5 % and 91.66%, respectively. When examined according to multiple antibiotic resistances, it was determined that 11 isolates (45.83%) were resistant to more than 3 antibiotic groups and were evaluated as multi-resistant. The biofilm formations of the isolates were investigated in vitro with Congo Red Agar Method. The biofilm formation ratios were determined as 37.50% with CRA method. The biofilm formation and multiple antibiotic resistance rates were found as high in the raw milk isolates of P. aeruginosa. The widespread and advanced studies thought to be performed for the lightening of this situation and biofilm related antibiotic resistances.
      PubDate: Thu, 31 Mar 2022 00:00:00 +030
       
  • Monthly Average Wind Speed Forecasting in Giresun Province with Fuzzy
           Regression Functions Approach

    • Authors: Abdullah YILDIRIM; Eren BAŞ
      Abstract: In recent years, fuzzy inference systems have been used as an effective method for forecasting problems instead of classical time series methods. Fuzzy inference systems are based on fuzzy sets and use membership values as well as the original data. The fuzzy regression functions approach, which is one of the popular fuzzy inference systems, has different importance from many fuzzy inference systems with its features that it does not have a rule base and is easier to apply, unlike many fuzzy inference systems in the literature. In this study, both the monthly average wind speed forecasting of Giresun Province is performed for the first time in the literature and the fuzzy regression functions approach method is used for the first time in the literature for wind speed forecasting. To evaluate the performance of the fuzzy regression functions approach used to forecast monthly average wind speed in Giresun Province, the results obtained from many methods suggested in the literature for forecasting problems are compared. As a result of the evaluations, it is concluded that the forecasts obtained by the fuzzy regression functions approach are superior than some other methods in the literature.
      PubDate: Thu, 31 Mar 2022 00:00:00 +030
       
  • Protective Effect of Nitrilotriacetic Acid on Lead Toxicity in Muscle and
           Liver Tissues of Oreochromis niloticus

    • Authors: Tüzün AYTEKİN
      Abstract: In this study, some enzyme activities and oxidative stress levels in the muscle and liver tissues of freshwater fish O. niloticus, which were exposed to the sublethal concentrations of Lead (Pb) and a mixture of Pb + NTA (Nitrilotriacetic acid) for 7 and 21 days were investigated. Parameters were measured with autoanalyzer devices. As a result of the data obtained; increase in total oxidant (TOS), oxidative index (OSI) levels and alanine transaminase (ALT), γ-glutamyl transferase (GGT), alkaline phosphatase (ALP) and lactate dehydrogenase (LDH) enzyme activities in liver tissue, total antioxidant (TAS) level decrease was observed. In muscle tissue, an increase was observed in TOS, OSI levels and ALT enzyme activity, while TAS level and GGT, ALP enzyme activities were found to be at kontrol levels. In the presence of NTA, it was observed that the decreases or increases in some parameters were milder. As a result, we can say that Pb causes changes in the physiology of fish, and NTA partially reduces these changes.
      PubDate: Thu, 31 Mar 2022 00:00:00 +030
       
  • Trend Analysis of Demersal Fish Landings in the Black Sea

    • Authors: İsmet SAYGU
      Abstract: Fishing statistics in Turkey is periodically collected under the coordination of Turkish Statistical Institute (TUIK) and the Ministry of Agriculture and Forestry, and reported to the Food and Agriculture Organization of the United Nations (FAO), which collects and announces global fishing statistics. Although there are debates about the accuracy of catch amounts, it has been demonstrated by many studies that the trends of time series catch amounts are reliable. Therefore, catch statistics are crucial data source for stock assessments and fisheries management. Using trend analysis, the aim of this study is to investigate the temporal changes of catch values of demersal fish species, which are predominantly caught in the Black Sea region of Turkey. These species are Whiting (Merlangius merlangus), Red Mullet (Mullus barbatus), Surmullet (Mullus surmuletus) and Turbot (Scophthalmus maximus). In this context, a 50-year data set covering the years 1970 - 2020, obtained from the FAO and TUIK databases, and 20-year data sets covering the years 2000 - 2020, giving the opportunity to examine the Black Sea as western and eastern, were used. Results showed that the catch amounts peaked at the end of the 1980s, decreased in the following years and then remained more stable after the 2000s. This story coincides with the trophic transformation process defined for the Black Sea ecosystem. According to the trend analysis results, Red Mullet (p<0.001), Turbot (p<0.001) and total catch (p>0.05) showed a negative trend, while Surmullet (p<0.05) and Whiting (p>0.05) showed a positive trend. Although a significant part of the eastern side of the Black Sea is prohibited for bottom trawling, this area is responsible for significant proportion of the catch of Red Mullet (75%) and Whiting (59%) that remarkably caught by bottom trawlers in the Black Sea. Therefore, results highlight the importance of trawling area between Sinop and Ordu.
      PubDate: Thu, 31 Mar 2022 00:00:00 +030
       
 
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