Serap koşal şahin

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• prof.dr
• Professor (Full) at Istanbul University

Anthropogenic activities and globalization have had a significant impact on numerous regions worldwide. Biodiversity and ecosystems are under immense stress due to climate change and species emergence. Freshwater resources are particularly vulnerable to environmental and human-related issues, such as population growth, urbanization, food demands, a...

In this study, freshwater Amphipoda (Crustacea) fauna in some streams of Eastern Anatolia Region (Türkiye) and their ecological tolerances were evaluated. For this aim, the previous studies including Amphipoda fauna in the area and the amphipod specimens from a total of 16 sampling localities in Tunceli and Malatya Provinces were presented. Also, s...

This study was conducted at 4 stations in Büyükçekmece Dam lake in 2020. In this study, water and Oligochaeta samples were collected seasonally. Parameters such as secchi disk depth, water temperature, dissolved oxygen, pH, electrical conductivity, salinity, total hardness, nitrite nitrogen, phosphate and nitrate nitrogen were measured. Water quali...

Benthic macroinvertebrate fauna of Istranca stream were investigated in 18 stations which belong to Istranca Stream by six times sampling from Sep-tember 2011 to August 2012. 6066 individuals belonging to Bivalvia (5 taxa), Gastropoda (11 taxa), Malacostraca (1 taxon), Ephemeroptera (17 taxa), Odonata (11 taxa), Plecoptera (6 taxa), Hemiptera (9 ta...

The study was carried out on Sürgü Stream, located in Malatya Province (Turkey), and aimed to determine the diversity and species composition of macrobenthic invertebrates. Six stations were determined on the stream and macrobenthic invertebrates were taken seasonally. As a result, 34 taxa belonging to five classes were detected; one of which belon...

Considering the studies related to the freshwater molluscs in Turkey, it can be seen that the first checklist was done in freshwater and brackish water in 1999 and 72 taxa were determined. One of the checklists published in 2006 included just the freshwater pulmonate species and in this checklist 28 taxa were reported. Another checklist on prosobra...

The quality of irrigation water has a considerable impact on what plants can be successfully grown, the productivity of these plants, and water infiltration and other soil physical conditions. Irrigated agriculture is dependent on an adequate water supply of usable quality. To avoid problems when using poor quality water supplies, there must be sou...

The optimal use of a stream water is mainly depend on its physical and chemical characteristics which are play a significant role in classifying and assessing the water quality. Anion and cation balance are the most important parameter of these processes. Aim of this study is the evaluation of the physical and chemical features of surface waters lo...

Sakarya Nehir havzası; yukarı, orta ve aşağı (Karasu) olmak üzere üç bölüme ayrılır. Bu çalışma Aşağı Sakarya (Karasu) Nehri’nde gerçekleştirilmiştir. Akarsu üzerinde dört istasyon seçilmiş ve bu istasyonlardan Ocak 2008-Ekim 2008 tarihleri arasında mevsimsel periyotlarla Oligochaeta örnekleri toplanmıştır. Çalışma sonunda, Oligochaeta sınıfına ait...

Abstract. In this study, anthropogenic influences on the natural fresh water sources regarding the levels of indicator bacteria were investigated in the Eastern Anatolian, Turkey. The surface water samples (0–30 cm) were collected seasonally in the period between November 2008 and October 2009. The levels of total and faecal coliform bacteria were...

To identify the mollusk fauna of Istranca Stream, samples were collected seasonally from 18 stations from September 2011 to August 2012. The mollusk fauna of the stream consists of a total of 14 species, 11 of which belong to Gastropoda: Theodoxus (Theodoxus) fluviatilis (Linnaeus 1758),

Total of 12 gastropoda species obtained from 45 different sampling locations in Malatya were examined to determine relationships between species and their ecological characteristics from June 2014 to May 2015. The first 2 axes of canonical correspondence analysis explain 86.4 % of the variance between thirteen species and seven environmental variab...

In this study, the mollusca fauna and their seasonal variation with some physical and chemical properties of Down Sakarya River were investigated during the period of January 2008–October 2008. The mollusca fauna of the river consists of a total of 11 species, 8 of which belong to Gastropoda, two Prosobanchia (Viviparus viviparus, Bithynia tentacul...

The aim of this study is that to investigate both ecological and numerical species assemblages of mollusc fauna of Lake Terkos (Istanbul, Turkey). In order to determine the mollusc fauna of Lake Terkos (Turkey) samples were collected from 5 stations monthly between February, 2008 to January, 2009. While a total of 11 mollusc species were found at t...

New freshwater genera (Anadoludamnicola and Sivasi) of Hydrobiidae are described for new hydrobiid species (Anadoludamnicola gloeri and Sivasi bodoni) from material collected from provinces Sivas and Malatya (Turkey), using anatomical and morphological data. For now, Sivasi is known from a single locality, while we expect Anadoludamnicola will be f...

In order to determine the gastropod fauna of Malatya's streams, samplings were made from 15 stations between August 2005 and September 2006. According to our results, gastropod fauna in Malatya's streams samplings involved 5 taxa of Prosobranchia (Theodoxus anatolicus (Récluz, 1841), Bithynia pseudemmerica Leach 1818, Bithynia tentaculata (Linnaeus...

In order to determine the oligochaeta fauna of Lake Sapanca (Turkey) samples were collected from 5 stations monthly, between September 2000-August 2001. As a result of the study, 13 species, which belong to 9 genera, were determined. These species are Aulodrilus limnobius, Tubifex tubifex, Tubifex ignotus, Tubifex nerthus, Limnodrilus hoffmeisteri,...

Aim The aims of this study are to establish a multi-locus phylogeny-based hypothesis for the biogeographical relationship of gastropods from the putative ancient Lake Egˇirdir, to test the respective null hypothesis, to estimate the timing of biogeographical events based on independent molecular clock approaches, and to interpret the data with resp...

To identify the mollusk fauna of Lake Sapanca (Turkey), samples were collected monthly from 5 stations between September 2000 and August 2001. The mollusk fauna of the lake consists of a total of 16 species, 12 of which belong to Gastropoda: Theodoxus fluviatilis, Viviparus acerosus costae, Esperiana accicularis situssineri, Esperiana esperi, Bithy...