Yazar "Odabasi, Deniz Anil" seçeneğine göre listele
Listeleniyor 1 - 17 / 17
Sayfa Başına Sonuç
Sıralama seçenekleri
Öğe A New Species of Bithynia (Gastropoda: Bithyniidae) from an Eutrophic Lake Uluabat (South Marmara Region), Northwest of Turkey(Central Fisheries Research Inst, 2015) Odabasi, Deniz Anil; Arslan, NaimeResearches concerning freshwater gastropoda in Turkey have increased significantly in recent years. Among Prosobranchia, Bithyniidae are in an interesting position due to limited knowledge available about species diversity, distribution and ecology. Although most of species belong to Bithyniidae known from Balkans and Greece, only few species of Bithyniids have been known from Turkey so far, including Bithynia tentaculata, B. leachii, B. pseudemmericia, B. phialensis, B. badiella, B. pesicii, B. yildirimi and Pseudobithynia pentheri, P. yildirimi. In this study conducted on Lake Uluabat, a limnobenthos survey was carried out from 12 different sampling sites across the lake. This study aims to describe a new Bithynia from the eutrophic Lake Uluabat located in South Marmara Region of Turkey and provide data about the ecology of the new species that living in a restricted location in the lake.Öğe A preliminary record on water mite (Acari: Hydrachnidia) fauna in Canakkale province (Biga Peninsula, Turkey)(Adem Yavuz SÖNMEZ, 2014) Gulle, Pinar; Akbulut, Mehmet; Odabasi, Serpil; Odabasi, Deniz AnilThis study has revealed first findings for water mites in Çanakkale Province, Biga Peninsula. According to the results of the field survey between 2008 and 2009, 11 Hydrachnidia species; Eylais megalostoma Koenike 1897, Lebertia fimbriata Thor 1899, Torrenticola (barsica (Szalay 1933), Limnesia walteri Migot 1926, Hygrobates longiporus Thor 1898, Hygrobates nigromaculatus Lebert 1879, Hygrobates longipalpis Hermann 1804, Atractides robustus (Sokolow 1940), Atractides nodipalpis Thor 1899, Atractides longirostris (Walter 1925), Mideopsis crassipes Soar have been described at the Tuzla, Kocabaş Streams and Ayazma Creek for the first time.Öğe Assessment of Surface Water Quality in the Atikhisar Reservoir and Saricay Creek (Canakkale, Turkey)(Foundation Environmental Protection & Research-Fepr, 2010) Akbulut, Mehmet; Kaya, Hasan; Celik, Ekrem Sanver; Odabasi, Deniz Anil; Odabasi, Serpil Sagir; Selvi, KahramanThis study was carried out to evaluate the surface water quality of the Atikhisar Reservoir and Sari ay Creek. Multivariate statistical techniques such as Cluster analysis (CA), principal component analysis (PCA), multidimensional Scaling (MDS), and univariate statistical techniques such as two-way ANOVA were used to analyze the data. Three different groups were formed based on Cluster analysis. Two-way ANOVA test results showed that interaction effects of any variables of the reservoir were non-significant but the interaction effects of pH in the creek were significant. Temperature (T), electrical conductivity (EC), oxygen saturation (OS), biological oxygen demand (BOD), chemical oxygen demand (COD), total phosphate (TP), total nitrate (TN), salinity (Sal), pH, Chl-a, and total suspended solids (TSS) of the reservoir were significantly different among seasons. While differences of T, EC, DO, TP, Chl-a, and TSS of the Sari ay Creek were significant among seasons, only the differences of temperature among the stations were significant. Multi dimensional scaling (MDS) analysis results revealed that the variables such as EC, Sal, OS, T and TN affected the differences among the sites, while the other variable groups were showing a similarity with the COD, BOD, TSS, AD, TP, pH, DO and Chl-a. The principle component analysis (PCA) results showed that the eigenvalues of the first 5 PCA were larger than 1.00, suggesting that they explained 98 % of the total variation.Öğe Bithynia kayrae n. sp (Gastropoda: Bithyniidae), a new species from freshwaters of Biga Peninsula (northwestern Anatolia, Turkey)(E Schweizerbartsche Verlagsbuchhandlung, 2017) Odabasi, Serpil; Odabasi, Deniz AnilBithynia kayrae n. sp. is described from a limnocrene area and small streams (Kirkgozler Kaynagi, Kocaba cayi, and Dumrek cayi) on the Biga Peninsula, northwestern Turkey (Asia Minor). Although this family has been intensively studied, predominantly in the Balkan region, and although several species of bithyniids have been reported from Turkey, species distributions and diversity remain incompletely known.Öğe Bythinella kazdaghensis sp n. (Gastropoda: Rissooidea) from the Mount Ida (Kaz Dagi), Northwestern Turkey(Inst Zoology, Bas, 2014) Odabasi, Deniz Anil; Georgiev, Dilian G.Bythinella, a highly diverse rissooidean genus, has a wide distribution area from the Iberian Peninsula to Asia Minor. More recent research about this genus revealed many taxa especially in the Balkan region. However, very few records were known from Turkey. This study aimed to describe a new species: Bythinella kazdaghensis sp. n. from the Mount Ida (Kaz Dagi) in Northwestern Turkey. Bythinella kazdaghensis sp. n. was compared with the species of Turkey and Greece as well. This new species was found to be similar to B. turca (Radoman, 1976) in terms of shell height.Öğe Changing of mollusca fauna in comparison with water quality: Saricay creek and atikhisar reservoir models (Canakkale-Turkey)(2009) Akbulut, Mehmet; Odabasi, Deniz Anil; Kaya, Hasan; Celik, Ekrem Sanver; Yildirim, M. Zeki; Odabasi, Serpil; Selvi, KahramanSpecies composition, abundance and monthly distribution of the Mollusca fauna and the physicochemical variables of Saricay Creek and Atikhisar Reservoir have been investigated between September 2005-August 2006. Mollusca fauna in Saricay Creek and Atikhisar Reservoir was represented by 21 species of Gastropoda and 8 species of Bivalvia. Diversity, dominance and frequency were recorded monthly. By assessing the data via Shannon-Wiener index, Saricay Creek had an index of 2.58 richness at 8th station while, third station in Atikhisar Reservoir had the poorest with an index of 0.02. According to Bray-Curtis similarity index, the first and third stations were found to be very similar to each other, while 8th and 66 h stations were observed to be the most different from all of the other stations in terms of the dynamics of mollusca fauna. Dreissena polmorpha were the most dominant of 47.16% and frequent species of 48.96%, especially encountered in the Atikhisar Reservoir. The results of One-way Analysis of Similarity (ANOSIM) showed that mollusca compositions were significantly different between sampling sites (p<0.05). ANOSIM and Similarity Percentage analysis (SIMPER) revealed significant differences and a high degree of community dissimilarity within and between the sampling stations. The relationship between the dynamics of organisms and environmental parameters were analyzed using Canonical Correspondence Analysis. This study pointed out that water quality parameters especially COD, BOD, Anionic Detergent, salinity, TP, TN, temperature were effective on the abundance and distribution of Mollusca fauna. © Medwell Journals, 2009.Öğe Changing of Mollusca Fauna In Comparison With Water Quality: Saricay Creek and Atikhisar Reservoir Models (Canakkale-Turkey)(Medwell Online, 2009) Akbulut, Mehmet; Odabasi, Deniz Anil; Kaya, Hasan; Celik, Ekrem Sanver; Yildirim, M. Zeki; Odabasi, Serpil; Selvi, KahramanSpecies composition, abundance and monthly distribution of the Mollusca fauna and the physicochemical variables of Saricay Creek and Atikhisar Reservoir have been investigated between September 2005-August 2006. Mollusca fauna in Saricay Creek and Atikhisar Reservoir was represented by 21 species of Gastropoda and 8 species of Bivalvia. Diversity, dominance and frequency were recorded monthly. By assessing the data via Shannon-Wiener index, Saricay Creek had an index of 2.58 richness at 8th station while, third station in Atikhisar Reservoir had the poorest with an index of 0.02. According to Bray-Curtis similarity index, the first and third stations were found to be very similar to each other, while 8th and 66 h stations were observed to be the most different from all of the other stations in terms of the dynamics of mollusca fauna. Dreissena polmorpha were the most dominant of 47.16% and frequent species of 48.96%, especially encountered in the Atikhisar Reservoir. The results of One-way Analysis of Similarity (ANOSIM) showed that mollusca compositions were significantly different between sampling sites (p<0.05). ANOSIM and Similarity Percentage analysis (SIMPER) revealed significant differences and a high degree of community dissimilarity within and between the sampling stations. The relationship between the dynamics of organisms and environmental parameters were analyzed using Canonical Correspondence Analysis. This study pointed out that water quality parameters especially COD, BOD, Anionic Detergent, salinity, TP, TN, temperature were effective on the abundance and distribution of Mollusca fauna.Öğe DESCRIPTION OF A NEW PSEuDOBITHYNIA N. SP (GASTROPODA: BITHYNIIDAE) FROM NORTHWEST TURKEY(Conchological Soc Great Britain & Ireland, 2013) Odabasi, Deniz Anil; Kebapci, Umit; Akbulut, MehmetThe Family Bithyniidae widely distributed in the Balkans and is represented by two genera in Europe: Bithynia and Pseudobithynia. More recent data about the Bithyniidae shows that the majority of family members are distributed in the Balkans and especially Greece. Seven species of Bithynia but only one of Pseudobithynia is currently known from Turkey. This study is aimed at describing a new species, Pseudobithynia yildirimi n. sp. from the Biga Peninsula in northwestern Turkey. Pseudobithynia yildirimi n. sp. is compared to related taxa in Turkey, as well as in Greece and neighbouring Iran. The penis variability and status of pseudo-maleness in P. yildirimi were also investigated.Öğe Development of a macroinvertebrate-based multimetric index for biological assessment of streams in the Sakarya River Basin, Turkey(Springer, 2022) Odabasi, Deniz Anil; Odabasi, Serpil; Ergul, Halim Aytekin; Ozkan, Nurcan; Boyaci, Yunus Omer; Baykose, Ahmet; Kayal, MelihThe present study aimed to develop a multimetric index as a biological indication method of water quality using benthic macroinvertebrates for Turkey. A total of 207 operational taxa units were identified from 26 sampling sites through the employment of the multi-habitat method. Water was simultaneously sampled for both in-situ measurements and laboratory analysis in order to obtain the data on water chemistry. Ineligible metrics were excluded from the calculation process together with box-whisker plots and Kruskal-Wallis test (p < 0.05), considering the degree of overlap in the quartile limits (1 degrees-3 degrees). Among ten candidate metrics, four were considered suitable to form a multimetric index through Spearman correlation analysis. The core metrics were standardized with the 3(rd) quartile to obtain the index value. The index responded to a set of environmental variables, and split the ecological conditions into four categories as high, moderate, poor, and bad for the study area. Our results indicate that the multimetric index of the Sakarya River (MMIS) is an effective biological monitoring tool employing macroinvertebrates for biological monitoring in Turkey.Öğe New Grossuana (Littorinimorpha: Hydrobiidae) species from Mount Kazdagi, northwestern Turkey(Taylor & Francis Ltd, 2022) Odabasi, Deniz Anil; Odabasi, Serpil; Deniz, OzanThe Hydrobiidae family is the most common and diverse taxa of freshwater gastropods in the aquatic ecosystem. Among Hydrobiidae, Grossuana Radoman, 1983 is a tiny spring-inhabitant genus which is mainly distributed in Balkan countries. We surveyed various freshwater ecosystems in the Canakkale Province, northwestern Turkey, including Mount Kazdagi, and found eight of Grossuana which are new to science: G. azizsancari, G. kazdagiana, G. onderi, G. bayramicensis, G. kirkgozlerensis, G. canakkalensis, G. arslanarum, and G. tunceri. The species are described here.Öğe Pseudamnicola thalesi sp. n. (Gastropoda: Truncatelloidea: Hydrobiidae), a new freshwater gastropod species from Western Turkey(Taylor & Francis Ltd, 2020) Odabasi, Deniz Anil; Akay, Enis; Koyuncuoglu, SerdarPseudamnicola Paulucci, 1878 is a circum-Mediterranean genus which contributes substantially to hydrobiid diversity. In Turkey, the genus Pseudamnicola is mainly found in the southern regions. Material collected from an upper branch of Esen Stream in southwestern Anatolia yielded a new species, Pseudamnicola thalesi sp. n. The characters of the shell, head and male genitalia are described and illustrated. The new species is compared with those of its congeners that have been recorded previously in Turkey.Öğe SEASONAL DISTRIBUTION AND COMPOSITION OF BENTHIC MACROINVERTEBRATE COMMUNITIES IN MENDERES CREEK, CANAKKALE, TURKEY(Parlar Scientific Publications (P S P), 2009) Akbulut, Mehmet; Celik, Ekrem Sanver; Odabasi, Deniz Anil; Kaya, Hasan; Selvi, Kahraman; Arslan, Naime; Odabasi, Serpil S.Seasonal changes of proportional distribution, biotic indices, abundance, and frequency of benthic macroinvertebrate communities in Menderes Creek were investigated at 5 stations between November 2005 and July 2006. The fauna included a total of 87 taxa belonging principally to Insecta (52 taxa, especially Chironomidae), Oligochaeta (12 taxa), Mollusca (11 taxa), Hirudinae (7 taxa), and Malacostraca (5 taxa). Mean density was estimated to be 778 individuals m(-2) for the 87 taxa. Mollusca (38.5%) and Insecta (39.9%) are the dominant groups among the macroinvertebrate assemblages. Average Shannon-Wiener diversity index was calculated as 1.41, average Margalef's richness index was 1.27, and average Pielou index was 0.61. The results of one-way analysis of similarity (ANOSIM) indicated that macroinvertebrate compositions were significantly different between sampling sites (p<0.05). ANOSIM and similarity percentage analysis (SIMPER) revealed significant differences and a high degree of community dissimilarity within and between the sampling stations.Öğe The First Record of Chaetogaster limnaei limnaei Baer 1827 (Annelida: Clitellata) on Pseudobithynia yildirimi (Gastropoda: Prosobranchia) from Northwest of Turkey(Central Fisheries Research Inst, 2015) Odabasi, Serpil; Odabasi, Deniz Anil; Arslan, NaimeIn this study, the presence of the Chaetogaster limnaei limnaei Baer, 1827, regarded as ectocommensal on the freshwater Mollusca, was observed on the pallial cavity of Pseudobithynia yildirimi Odabasi et al., 2013. This is the first time the presence of C. limnaei limnaei on the Pseudobithynia genus has been reported. Despite the nonhazardous character of the epizoic worm, its ultra-structural and population level of damage on the narrow-range endemic host should be well measured.Öğe The important freshwaters of the Province of Canakkale and pollution sources(Ege Univ, 2006) Akbulut, Mehmet; Odabasi, Serpil Sagir; Odabasi, Deniz Anil; Celik, Ekrem SanverThe aim of this study is to compile and review physico-chemical features of some important lake, pond, river and reservoir and polluting factors them in Canakkale. There are 234 industrial plants belonging to various sectors in Canakkale. However, considerable amount of fertiliziers are used at the 338.000 hectars agricultural lands. In addition, in the settling areas there are solid waste and sewage problems threating environmental, human health and aquatic ecosystem. This preliminary study will guide scientific studies that will be made later on in the region determining the important freshwaters of Canakkale, polluting agents, and polluted areas.Öğe The Non-indigenous and Ponto-Caspian Gastropoda Fauna of Lake Sapanca (Turkey), with Notes on the Ponto-Caspian Clitellata Species in the Lake(Inst Zoology, Bas, 2017) Arslan, Naime; Akkan-Kokcu, Cansev; Mercan, Deniz; Odabasi, Deniz AnilMany Ponto-Caspian invertebrate species have been introduced to new areas in Europe, Baltic Sea and North America. In Turkey, the Ponto-Caspian fauna has spread in the inland waters, following different patterns and in different geological periods. Lake Sapanca is located on a tectonic hole in the Marmara region in the north-western part of Turkey. Except for a few studies, there has been no detailed information about the non-indigenous and Ponto-Caspian species in the lake. In the present study (from June 2011 to December 2013), the benthic macroinvertebrate fauna of Lake Sapanca was determined. The following Gastropoda species, which originate from the Ponto-Caspian area, were detected: Lithoglyphus naticoides, Esperiana esperi, and Borysthenia naticina. The presence of these species in different parts of Turkey suggests that the main routes of migration might be the rivers flowing into the Black Sea. Some notes on the Ponto-Caspian and invasive Clitellata species in the lake were made.Öğe The Valvata species of Turkey with a description of valvata kebapcii n. sp. (Mollusca: Valvatidae)(Centre for Biodiversity of Montenegro, 2015) Odabasi, Deniz Anil; Glöer, Peter; Yildirim, M. ZekiThe family Valvatidae Gray 1840 has a widespread distribution in the Holarctic. To date, four species of the genus Valvata have been reported from Turkey: V. cristata O.F. Müller 1774, V. piscinalis (O.F. Müller 1774), V. saulcyi Bourguignat 1853 and V. macrostoma Mörch 1864. This study is based on recently collected materials from the comprehensive field survey at Biga Peninsula streams, northwestern Anatolia, between 2009 and 2011. Additional materials were also examined from Cire Brook, Isparta, southwestern Anatolia, Turkey. Valvata kebapcii sp. n. is described here as new for science. Further research is required in order to reveal exact ranges of dispersal of the new Valvata species in Turkey.Öğe Twelve New Records (Clitellata, Chironomidae and Gastropoda) from Lake Golbasi (Hatay-Turkey)(Central Fisheries Research Inst, 2013) Arslan, Naime; Kara, Deniz; Odabasi, Deniz AnilSamples were collected from 3 different stations between October 2011 and June 2012 with a view to identifying the macrozoobenthic fauna (especially Gastropoda, Clitellata and Chironomidae) of Lake Golbasi, located in Southern Anatolia. A total of 14 species were determined, 12 of them (Valvata macrostoma, Theodoxus anatolicus, Physella acuta (Gastropoda); Potamothrix hammoniensis, Psammoryctides albicola (Clitellata); Harnischia fuscimana, Einfeldia pagana, Chironomus thummi, Polypedilum sordens, Polypedilum convictum, Polypedilum scalaenum and Cladotanytarsus mancus (Chironomidae)) are first published records for Lake Golbasi and two of them (Melanoides tuberculatus and Melanopsis costata (Gastropoda)) have previously been reported from the lake.
