Yazar "Dirican, Seher" seçeneğine göre listele
Listeleniyor 1 - 18 / 18
Sayfa Başına Sonuç
Sıralama seçenekleri
Öğe A Contemporary Study on Fisheries Production Rights Leased Dam Lakes in Sivas Province, Türkiye(Sivas Cumhuriyet University, 2022) Dirican, SeherAnother important source of the world's aquaculture production, apart from the seas, is inland waters. In this study, the current status of the fishing fields of the province of Sivas, for which the right of production has been leased, in inland waters has been investigated. According to the January-2022 data of the Ministry of Agriculture and Forestry of the Republic of Turkey, there are three fishing fields in Sivas province, the right of production of which is leased. Among these, Kılıçkaya Dam Lake has the highest rental price. Kılıçkaya Dam Lake is followed by Gölova and İmranlı dam lakes. Sivas Province, where Gölova, Kılıçkaya and İmranlı dam lakes are located, for which the right of production is leased, does not have the opportunity to increase the production of fisheries through fishing. In addition, invasive rainbow trout caught in Gölova and İmranlı dam lakes pose a significant threat to native fish species and biodiversity. For these reasons, fisheries policies should be based on the sustainability of fisheries production with an ecosystem-based approach.Öğe A preliminary correlation and regression study on drinking water quality of Susehri district in Turkey(Ars Docendi, 2019) Dirican, SeherThe correlation and regression study deals with the drinking water quality of Susehri located at Central Anatolian region of Turkey. Over the period between May 2013 and June 2014, twelve field surveys were conducted and water samples were collected from four different stations in Susehri. In the collected water samples, totally fourteen physicochemical parameters were analyzed. Physicochemical parameters studied were in varying ranges such as water temperature 14.00-20.60 degrees C, dissolved oxygen 3.80-6.50 mg/l, BOD5 0.50-1.60 mg/l, pH 7.00-8.00, ammonium 0.00-0.16 mg/l, nitrite 0.00-0.25 mg/l, nitrate 0.00-2.30 mg/l, ortophosphate 0.00-0.25 mg/l, chloride 4.00-12.00 mg/l, carbonate hardness 2.20-8.20 degrees dH, acid binding capability 0.80-3.00 mmol/l, total hardness 2.60-9.20 degrees dH, calcium 18.56-65.69 mg/l and magnesium 11.13-39.38 mg/l in Susehri. Highly positive correlation coefficient is observed between carbonate hardness and acid binding capability (R=0.975**), carbonate hardness and total hardness (R=0.891**), carbonate hardness and calcium (R=0.899**), carbonate hardness and magnesium (R=0.892**), acid binding capability and total hardness (R=0.892**), acid binding capability and calcium (R=0.899**), acid binding capability and magnesium (R=0.893**), total hardness and calcium (R=0.996**), total hardness and magnesium (R=1.000**), calcium and magnesium (R=0.996**). The correlation and regression study showed significant linear relationship among different pairs of water quality parameters in Susehri. Based on the data recorded, all of the physicochemical parameters are well within the permissible limits as per standards. The quality of water is safe for drinking purposes in Susehri.Öğe A Survey on Some Physico-Chemical Parameters and Zooplankton Structure in Karaman Stream, Antalya, Turkey(Medwell Online, 2009) Altindag, Ahmet; Buyurgan, Ozge; Kaya, Murat; Ozdemir, Ebru; Dirican, SeherThis survey was carried out to determine some physico-chemical parameters and zooplankton structure in Karaman Stream located in Southwestern Turkey. Some physico-chemical parameters and zooplankton structure in Karaman Stream were assessed between 09 June 2007 and 09 December 2007. Water and zooplankton samples were collected from 4 different stations in Karaman Stream. During the period of investigation 37 species of zooplanktons representing 3 groups namely Rotifera, Cladocera and Copepoda were determined in Karaman Stream. Rotifera included 34 species, Cladocera 2 species and Copepoda 1 species were identified in Karaman Stream. Of these, Macrochaetus subquadratus (Perty, 1850) belonging to Rotifera was a new record for Turkey. Rotifera were the most dominant group in the zooplankton of Karaman Stream in this survey. In the water samples, totally 4 physico-chemical parameters were analyzed. As a result of this research, Karaman Stream did not show any significant water pollution problem.Öğe Assessment of Drought Hazard of Yapıaltın Dam Lake (Sivas-Türkiye) According to the Water Occupancy Rates of the Last Thirteen Years(2024) Dirican, SeherGlobal problems affect all living things. Global warming and the resulting global climate change affect the natural balance in the systems and processes of the hydrobiological cycle. The number one factor necessary for the continuation of life on earth is water. But the world has been in danger of drought for a very long time. Drought danger is a serious problem that can lead to a decrease in biodiversity, drying of vegetation, soil erosion, decrease in agricultural production, decrease in water resources and water scarcity. Yapıaltın Dam Lake was established between 1975-1977 for agricultural irrigation and flood protection. This research focused on the assessment of drought hazard in Yapıaltın Dam Lake according to the water occupancy rates of the last thirteen years. For this reason, the data of the water occupancy rates in Yapıaltın Dam Lake for the years 2010-2022 were presented and evaluated in this research. As a result, the average water fill rate of Yapıaltın Dam Lake, which has fallen below 20 percent compared to the last thirteen years, carries a potential risk for agricultural irrigation. For this reason, the waters of the Yapıaltın Dam Lake should be used more consciously than ever before and classical irrigation methods should be abandoned.Öğe Comparison of effects of two different feeding rations (high feed rates and limited) on growth of rainbow trout in rectangular concrete pools culture conditions of Susehri in Turkey(ACADEMIC PUBLICATION COUNCIL, 2017) Dirican, Seher; Musul, HaldunThis study is focused on comparison of effects of two different feeding rations on growth of rainbow trout in rectangular concrete pools culture conditions of Susehri in Turkey. Also, the water used in the experiment was analyzed for 15 physicochemical parameters. During the experiment, food was given to the fish in the first group at 2% ratio of their live weight and to the second group, until satiation. At the end of the experiment, the live weights of groups were determined as 116.36 +/- 36.84 g, 147.53 +/- 24.82 g, respectively and the difference among both groups have been found to be significant (P<0.05). In the study, total length gain, relative total length gain, weight gain, relative weight gain, specific growth rate, survival ratio, condition factor and feed conversion ratio of groups were calculated. Feed conversion rates have been found to be 1.57 and 2.93, respectively. The best feed conversion rate was found with the first group (2%). At the end of the economic analysis, it was found that food cost is low with the first group and high with the second group.Öğe Condition factors of some Cyprinid fishes of Kilickaya reservoir, Sivas, Turkey(2012) Dirican, Seher; Musul, Haldun; Cilek, SüleymanThis study, investigate the condition factors of some Cyprinid fishes in Kilickaya Reservoir, Central Anatolian region of Turkey. The obtained results were compared with other studies from different habitats in Turkey. Cyprinus carpio (1.7856±0.2603) has the greatest mean condition factor followed by Leuciscus cephalus (1.6373±0.1483), Capoeta sieboldii (1.1596±0.1186), Capoeta tinca (1.1375±0.0991) and Barbus plebejus (1.1336±0.1083). According to the results, condition factors of some Cyprinid fishes are shown that a good level of nutrition of fish and nutritional capacity in Kilickaya Reservoir. Knowledge of condition factors of some Cyprinid fishes are important for adequate management and maintenance of the bio-ecological equilibrium of the ecosystem in Kilickaya Reservoir.Öğe CONDITION FACTORS OF SOME CYPRINID FISHES OF KILICKAYA RESERVOIR, SIVAS, TURKEY(AGRICULTURAL RESEARCH COMMUNICATION CENTRE, 2012) Dirican, Seher; Musul, Haldun; Cilek, SuleymanThis study, investigate the condition factors of some Cyprinid fishes in Kilickaya Reservoir, Central Anatolian region of Turkey. The obtained results were compared with other studies from different habitats in Turkey. Cyprinus carpio (1.7856.+/- 0.2603) has the greatest mean condition factor followed by Leuciscus cephalus (1.6373 +/- 0.1483), Capoeta sieboldii (1.1596 +/- 0.1186), Capoeta tinca (1.1375 +/- 0.0991) and Barbus plebejus(1.1336 +/- 0.1083). According to the results, condition factors of some Cyprinid fishes are shown that a good level of nutrition of fish and nutritional capacity in Kilickaya Reservoir. Knowledge of condition factors of some Cyprinid fishes are important for adequate management and maintenance of the bio-ecological equilibrium of the ecosystem in Kilickaya Reservoir.Öğe Current Situation of Dam Lakes on Kızılırmak River in Türkiye with Fisheries Production Rights Leased(2024) Dirican, SeherThe increase in the diversity of needs arising due to population growth, technological development and globalization leads to greater use of limited natural resources and brings with it consequences such as resource depletion and pollution. This study focused on the dam lakes on the Kızılırmak River in Türkiye, whose fisheries production rights were leased. On the Kızılırmak, the longest river within Türkiye’s borders, there are İmranlı, Yamula, Bayramhacılı, Hirfanlı, Obruk, Boyabat and Derbent reservoirs, where the right to produce fishery products is leased. Among these, the most rented reservoir is Hirfanlı Dam Lake. The sustainability of fisheries in these reservoirs on the Kızılırmak River is important for meeting healthy protein needs and socio-economic development. The fisheries that have commercial value in these dam lakes, provide both employment and a significant economic contribution to the population of the province and district in which they are located. In order to utilize this potential in a healthy way, it has been concluded that it is very important to operate these dam lakes with a balance between protection and use. However, it is necessary to increase incentives and support for fishermen particularly in these fishing regions.Öğe Determination of Drinking Water Quality of Public Fresh Water Fountains in Sivas Province Using Multivariate Statistical Methods(Hard, 2023) Dirican, SeherThis research was carried out in order to evaluate the physicochemical variables of public fountain waters with multivariate statistical methods between April 2019 and February 2020 in Sivas province of Turkey. In this context, 12 physicochemical variables belonging to 6 selected stations were examined. The coefficient value of the Kaiser-Mayer-Olkin test was analyzed as 0.627 and the significance value of the Bartlett's test as 0.00. According to these two values, the data set was found adequate for factor analysis. Four factors with Eigenvalues greater than 1 were determined according to the results obtained from the factor analysis. In the research 74.7% of the total change can be explained by these four factors. As a result of the research, significant similarities were observed between the structure obtained by rotated factor analysis and the structure obtained by cluster analysis. All of the 12 physicochemical variables clearly show that the fountain water samples in Sivas province meet international standards for drinking water. However, the quite low average fluoride value may create a risk of tooth decay for the local people who constantly consume fountain waters as drinking water in Sivas.Öğe Examination of Hafik Lake (Sivas-Turkey) as a Sensitive Area to be Definitely Protected(Deniz Publication, 2024) Dirican, SeherIn this study, Hafik Lake, which was declared and registered in May 2020 as a sensitive area to be protected in the Sivas province of Turkey, was examined. A total area of 114.07 hectares in and around Lake Hafik has been determined and declared as a sensitive area to be protected. Hafik Lake is a small, natural, karstic and open lake located in the north of the Hafik district of Sivas province in the Central Anatolia Region. Although it is a small lake, it is important because it is one of the gypsum karst lakes that are rarely seen in Turkey. The water of Hafik Lake, which is almost completely covered with reeds and mud at the bottom, is fresh. Hafik Lake, which is intertwined with history, also carries the distinction of being the only example in Turkey of the type of lake houses called Palafit. Hafik Lake is a sensitive area to be protected and it is one of the privileged areas in the Sivas province of Turkey, where recreational activities can be carried out besides its rich flora, fauna, and natural and cultural values. In conclusion, the preservation of Hafik Lake's fascinating topographical structure, rich flora, fauna, richness in cultural motifs, historical values and extraordinary natural structure can only be possible by establishing the balance of protection and use of these values. Continuity and transfer to future generations will be possible by ensuring the balance of protection and use in Hafik Lake. © 2024, Deniz Publication. All rights reserved.Öğe Investigation of impact of aquaculture on benthic organisms in the vicinity of Salih Island (Bodrum-Mugla)(Ege Univ, 2006) Dirican, Seher; Katagan, TuncerThis study was carried out to determine of impact of aquaculture on the benthic organisms in the vicinity of Salih Island. For this purpose, benthic samples were collected from 9 stations seasonally between October 2001-August 2002. As a result of this study, benthic datas were not showed continuously negative a situation during the year. In the research area, 346 species and 3911 individuals belong to 8 systematic groups (Platyhelminthes, Nemertini, Sipuncula, Polychaeta, Crustacea, Mollusca, Echinodermata and Acrania) were determined. According to the similarty index, there are three groups other than a station which is 20% similar to the other stations, no major environmental interactions can be found in the Salih Island.Öğe Kuru Göl(Sivas-Türkiye)’ün Sürdürülebilirliği: Perspektif Görüşler ve İleriye Dönük Yol(Sivas Cumhuriyet University, 2024) Dirican, SeherBirçok değişkene bağımlı olan çevre sorunları, dünyadaki çoğu ülke için ortak ve önemli kabul edilen bir meseledir. Bu çalışmada, Türkiye’nin Sivas ilinde bulunan kesin korunacak hassas alan olan Kuru Göl’ün önemi, mevcut durumu ve sürdürülebilir kullanımını değerlendirilmiştir. Kuru Göl, el değmemiş doğası, bitki örtüsü ve yaban hayatı özellikleri ile manzara güzelliğine sahip dikkat çeken bir alandır. Kuru Göl, Türkiye’nin Sivas ili sınırları içinde, Hafik ilçesine yaklaşık 20 km uzaklıktadır. Doğal dokusundan dolayı çok değerli olan Kuru Göl, 2020 yılı Aralık ayında alınan resmi karar ile kesin korunacak hassas alan olarak ilan ve tescil edilmiştir. Kuru Göl’ün bulunduğu konum ve diğer doğal ortam özellikleri, geniş bir alanın ekosistemi için hayati öneme sahiptir. Bu yüzden, Kuru Göl ve çevresindeki 209.48 hektarlık alan kesin korunacak hassas alan kategorisine alınmıştır. Bu doğa harikası sulak alanın korunması ve gelecek nesillere aktarılması için koruma tedbirleri alınarak sürdürülebilir kullanımı sağlanmalıdır. Kuru Göl, sahip olduğu doğal manzara bütünlüğünü, tarihi değerlerini, içinde barındırdığı bitki örtüsü ile yaban hayvanlarını koruyacak ve yerel halkın yararlanmasını sağlayacak şekilde korunmalı ve yönetilmelidir. Kuru Göl gibi doğal alanların yönetiminde sürdürülebilirlik anlayışı ön plana çıkmalıdır. Kuru Göl’ün doğru, bilinçli ve verimli yönetilmesi durumunda, büyük bir ekosistemin küçük bir parçası olan bu sulak alanın doğal denge bakımından korunması ve sürdürülebilirliği sağlanabilir.Öğe Kılıçkaya Baraj Gölü (Sivas-Türkiye)’nin Fiziko-Kimyasal Özelliklerinin Gökkuşağı Alabalığı Yetiştiriciliği İçin Değerlendirilmesi(Kafkas Üniversitesi, 2008) Dirican, SeherSu ürünleri yetiştiriciliği, Dünya’da ve Türkiye’de son yıllarda büyük gelişme gösteren bir sektördür. Sivas ili zengin tatlı su ekosistemleriyle önemli bir su ürünleri yetiştiricilik potansiyeli içermektedir. Sivas ilinde, toplam 37 adet gökkuşağı alabalığı yetiştiricilik işletmesi mevcuttur ve bunların toplam üretim kapasitesi yaklaşık 770 ton/yıl’dır. Bu çalışma, Kılıçkaya Baraj Gölü’nün fiziko-kimyasal özelliklerinin gökkuşağı alabalığı yetiştiriciliği açısından değerlendirilmesi amacıyla yapılmıştır. Bu amaçla, Kılıçkaya Baraj Gölü’nde 3 örnekleme noktasından ve her bir noktada farklı 3 derinlikten su örnekleri alınmıştır. Alınan su örneklerinde toplam 13 fiziko-kimyasal parametre analiz edilmiştir. Bu çalışma sonucunda, elde edilen fiziko-kimyasal veriler değerlendirildiğinde Kılıçkaya Baraj Gölü’nde kafeslerde gökkuşağı alabalığı yetiştiriciliğinin yapılabileceği belirlenmiştir. Su ürünleri yetiştiriciliğinin amacı, sucul ekosistemlere zarar vermeyen bir şekilde büyümektir. Bu nedenle, Kılıçkaya Baraj Gölü’nde tatlısu ekosistemlerinin korunması için gökkuşağı alabalığı yetiştiriciliğinin çevresel etkilerinin izlenmesi büyük önem taşımaktadır.Öğe Multivariate statistical assessment of heavy metal contamination in muscle of Silurus glanis L., 1758 from Kılıçkaya Reservoir in Turkey(Polish Society Magnesium Research, 2024) Dirican, SeherHeavy metals entering aquatic ecosystems from natural and anthropogenic sources are a significant water pollution problem. They accumulate in organisms living in aquatic ecosystems, and threaten human health by entering food chains. This study was carried out to assess the Cd, Cr, Cu, Mn, Ni, Pb and Zn contamination concentrations with multivariate statistical analysis in muscle tissue of the European catfish ( Silurus glanis L., 1758) caught from K & imath;l & imath;& ccedil;kaya Reservoir. The target tissue where heavy metals are stored and the muscle tissue, as it is the most edible part of the fish, were used in this paper. Contamination concentrations of heavy metals expressed in mu g g -1 were determined with an atomic absorption spectrophotometer. As a result, maximum values of heavy metal concentrations in muscle tissue of Silurus glanis samples were measured at 0.03 mu g g -1 for Cd, 0.37 mu g g -1 for Cr, 3.59 mu g g -1 for Cu, 3.32 mu g g -1 for Mn, 0.68 mu g g -1 for Ni, 0.43 mu g g -1 for Pb and 23.15 mu g g -1 for Zn. The correlation between Zn, Cd, Cr, Mn and Cu concentrations was very strong and significantly positive ( r =0.818 ** , r =0.931 ** ). Principal component analysis revealed two components explaining 94.50% of the total variance. The first component is dominated by Cu, Mn and Cd, while the second component is dominated by Ni and Zn. It is thought that the metals that dominate the first and second components are generally accumulated due to environmental factors and partially due to the geological structure of the region. According to the hierarchical clustering analysis results, 2 different groups were distinguished. The first group includes Cr, Pb, Ni, Cd, Cu and Mn, while the second group contains only Zn. Concentrations of Cd, Cr, Cu, Mn, Ni and Zn were below the FAO and EU recommended limits for fish, while Pb was found above the EU recommended limit. In this case, it poses a risk in terms of food safety and human health. Hence, it will be very beneficial to take the necessary measures immediately.Öğe New Records of Diatoms (Bacillariales, Rhopalodiales & Surirellales) with Ultrastructure Details from the Black Sea Coast of Turkey(Istanbul Univ Press, Fac Aquatic Sciences, 2022) Dirican, Seher; Kaleli, Aydin; Yilmaz, Elif; Ozer, Ali; Dayioglu, HayriDiatoms associated with the order Bacillariales, Rhopalodiales and Surirellales are well known to be present in marine and brackish waters. In this study, diatoms in the western Black Sea coasts of Turkey were investigated with ultrastructure details. Species belonging to the Bacillariales, Rhopalodiales and Surirellales were subject to light microscopy (LM) and scanning electron microscopy (SEM) analysis, and a total of twenty-four taxa were investigated. This study examines details on the morphology and biogeography of the taxa with remarks on their distribution in Turkey. The results revealed that four species were reported on the Turkish coasts for the first time. These species were Nitzschia liebethruthii, N. volvendirostrata, Epithemia guettingeri and Campylodiscus scalaris.Öğe Preliminary study on heavy metal concentrations of Anatolian Khramulya, Capoeta tinca (Heckel, 1843) from Camligoze Dam Lake, Sivas, Turkey(BIOMED CENTRAL LTD, 2013) Dirican, Seher; Cilek, Suleyman; Ciftci, Hakan; Biyikoglu, Mutluhan; Karacinar, Servet; Yokus, AhmetThe concentrations of heavy metals (Ag, Cd, Co, Cu, Ni, Pb, Zn) were analyzed in muscle, skin and liver of Anatolian Khramulya, Capoeta tinca (Heckel, 1843) from Camligoze Dam Lake located at Central Anatolian region of Turkey. The heavy metal analysis of samples was carried out by using a flame atomic absorption spectrophotometer. Ag, Cd, Co, Pb and Zn were found in all of the examined tissues. Cu and Ni were not determined in all tissues studied. The mean concentrations of heavy metals in all of the examined tissues of Capoeta tinca were as follows: Ag: 0.057 +/- 0.038-0.120 +/- 0.051, Cd: 0.020 +/- 0.004-1.451 +/- 0.879, Co: 0.127 +/- 0.067-0.205 +/- 0.086, Pb: 1.939 +/- 0.477-2.604 +/- 0.393 and Zn: 0.056 +/- 0.014 0.530 +/- 0.129 mu g/g in Camligoze Dam Lake. According to international criterias and Turkish regulation, heavy metal concentrations especially Cd and Pb in Camligoze Dam Lake were found above the permissible levels for examined tissues of Capoeta tinca. Furthermore, frequent consumption of contaminated fish is able to offer a serious public health risk. Therefore, the concentrations of metals accumulated in the fish, which are commonly consumed by public, should be monitored periodically in Camligoze Dam Lake.Öğe A Survey on Some Physico-Chemical Parameters and Zooplankton Structure in Karaman Stream, Antalya, Turkey(MEDWELL ONLINE, 2009) Altindag, Ahmet; Buyurgan, Ozge; Kaya, Murat; Ozdemir, Ebru; Dirican, SeherThis survey was carried out to determine some physico-chemical parameters and zooplankton structure in Karaman stream located in Southwestern Turkey. Some physico-chemical parameters and zooplankton structure in Karaman stream were assessed between 9 June 2007 and 9 December 2007. Water and zooplankton samples were collected from 4 different stations in Karaman stream. During the period of investigation 37 species of zooplanktons representing 3 groups namely Rotifera, Cladocera and Copepoda were determined in Karaman stream. Rotifera included 34 species, Cladocera 2 species and Copepoda 1 species were identified in Karaman stream. Of these, Macrochaetus subquadratus (Perty, 1850) belonging to Rotifera was a new record for Turkey. Rotifera were the most dominant group in the zooplankton of Karaman stream in this survey. In the water samples, totally 4 physico-chemical parameters were analyzed. As a result of this research, Karaman stream did not show any significant water pollution problem.Öğe Wetland of Local Importance in Sivas Province (Turkey): Kaz Lake(Deniz Publication, 2023) Dirican, SeherWetlands are very complex natural systems that serve the local people and the country, and they have important values that cannot be compared with any other ecosystem on Earth. This study aims to emphasize the importance of Kaz Lake, which is a locally important wetland in Sivas province, and to reveal the current situation. Kaz Lake is located in the Central Anatolia Region and is one of the 22 locally important wetlands of Turkey. Kaz Lake is a typical shallow lake and is the only wetland of local importance within the borders of Sivas province. Kaz Lake and its surrounding wetlands of 315 hectares were registered as locally important wetlands in 2019. The protected area national classification code of Kaz Lake is 06.02.03.0012. Kaz Lake is a wetland ecosystem that meets the criteria of “Wetland of Local Importance” with its features such as the animal and plant species it hosts in and around, the diversity in their habitats, and the fact that it provides feeding, accommodation, and breeding opportunities to very crowded bird groups due to its location on migration routes. Kaz Lake Wetland should be protected above all for the wildlife whose life depends on the habitat here. Management plan studies for Kaz Lake Wetland are still in progress. For this reason, the locally important Kaz Lake Wetland in Sivas province should be managed intelligently and its sustainable use should be ensured. Kaz Lake Wetland should be protected and managed in such a way as to protect its landscape integrity, natural and historical values, the wild animals and plant species it contains, and to ensure that local people benefit. © 2023, Deniz Publication. All rights reserved.
