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    Application of Hypothetical Ecological Risk Analysis to Sustainable Usage of Possible Winter Recreation Areas in Seyhan Basin (Turkiye)
    (Istanbul Univ Press, Fac Aquatic Sciences, 2022) Yeler, Okan; Aydin, Gazel Burcu; Camur-Elipek, Belgin; Berberoglu, Suha
    In this study, the long-term suitability of the area proposals for winter recreation activities in the Seyhan Basin (Turkiye), which is located in the Mediterranean and Central Anatolia regions and includes a large part of the Taurus Mountains, were examined ecologically. For this purpose, the predicted global warming scenarios in the basin and the anthropogenic impacts arising from the planned recreation areas were evaluated for the upper basin (recreation areas) and lower basin (water resources, agricultural lands, and settlements) using a hypothetical risk analysis. For this purpose, multispectral images were obtained by using Landsat 8 Oli Multispectral images of the snow areas in the region in January-February-March 2019, and a hypothetical ecological risk analysis was created considering a total of 5 pressure factors originating from global climate change and anthropogenic effects. These possible factors were determined as flood (S1), drought (S2), sedimentation (S3), aquatic nutrients (S4), and tourist density (S5). The effects of these factors on a total of four features (C1: water quality, C2: fauna-flora, C3: agricultural areas, and C4: settlements) in the region were evaluated by hypothetical grading based on the literature. According to the hypothesis results obtained by the formula and statistical calculations, it was determined that the flood factor (S1) that will occur due to possible snow melt due to global climate change in the winter recreation areas in the studied region is the most significant factor limiting the sustainable usage of the Basin. For this reason, it has been emphasized in this study that the possibility of regions being exposed to the effects of climate change in the future should be taken into account, especially when planning for winter recreation areas. At the end of this study, it was concluded that the ecological balance analysis of basins is important, especially in terms of ensuring the long-term sustainable use of winter recreation areas.
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    Benthic Macroinvertebrate Diversity of Rice Fields in the Meric-Ergene River Basin, Thrace, Turkey
    (Inst Zoology, Bas, 2019) Aydin, Gazel Burcu; Camur-Elipek, Belgin
    Rice fields are temporary wetland agro-ecosystems that could be inhabited by benthic macroinvertebrates. A survey of benthic macroinvertebrate diversity of rice-fields in the Meric-Ergene River Basin, an important rice-production area in Turkey, was carried out during the cultivation cycle (April - October 2016). We identified 69 benthic macroinvertebrate taxa in the studied area, majority of them with a potential to represent food resources for fish. Totally, 51 species were identified at the species level; in addition to them, other invertebrates were identified at the levels of superior taxa: seven genera, eight families, one order, one class and one phylum. Of the sampled taxa, 74% were arthropods (representing 21 families in five classes). Seasonal colonisation and succession of benthic macroinvertebrates during rice cultivation cycle followed one another, being also regulated by predation. We conclude that strategies of sustainable management of rice fields should be planned together by biologists and agroecologists, and propose alternative approaches to utilise the rice field apart from rice production.
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    The Chironomidae (Diptera) fauna of Kirklareli Province
    (Tubitak Scientific & Technological Research Council Turkey, 2017) Aydin, Gazel Burcu; Guher, Huseyin
    Larval and adult material collected from July 2012 to July 2013 and previously collected larval material were evaluated taxonomically to determine the Chironomidae (Diptera) fauna of Kirklareli Province. Accordingly, a total of 64 species belonging to the subfamilies Tanypodinae, Prodiamesinae, Orthocladinae, and Chironominae of the family Chironomidae were determined, of which Camptocladius stercorarius (De Geer, 1776), Corynoneura sp., Paratanytarsus sp., Ablabesmyia (Ablabesmyia) phatta (Eggert, 1863), Chironomus semireductus (Lenz, 1924), Einfeldia carbonaria (Meigen, 1804), Metriocnemus (Metriocnemus) fuscipes (Meigen, 1818), Rheocricotopus (Rheocricotopus) fuscipes (Kieffer, 1909), and Stictochironomus sp. were determined as new records for Kirklareli Province, Acricotopus lucens (Zetterstedt, 1850), Brillia flavifrons (Johannsen, 1905); Cladopelma virescens (Meigen, 1818), Demicryptochironomus sp., and Harnischia curtilamellata (Malloch, 1915) for Turkish Thrace; and Paratanytarsus laetipes (Zetterstedt, 1850) for Turkish Chironomidae fauna.
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    Contributions to the Faunistic Knowledge of Chironomidae (Diptera) of Turkey Based on the Adult Males Collected Around Hazar Lake (Elazi?)
    (Gazi Entomological Research Soc, 2022) Aydin, Gazel Burcu
    In the present study, adult male specimens from the non-biting midge family (Chironomidae) collected around the Hazar Lake (Elazig, Turkiye) in 2021 were evaluated taxonomically. We collected a total of 17 species in three subfamilies of Tanypodinae, Orthocladiinae, and Chironominae. Two species Cryptotendipes pseudotener (Goetghebuer, 1922), and Dicrotendipes pallidicornis (Goetghebuer, 1934) are new faunistic records for Turkiye. 11 species were observed for the first time in the Hazar Lake, although they have been reported previously in Turkiye. These include: Procladius (Holotanypus) choreus (Meigen, 1804), Cricotopus (Cricotopus) bicinctus (Meigen, 1818), Cricotopus (Cricotopus) festivellus (Kieffer, 1906), Cryptotendipes pseudotener(Goetghebuer, 1922), Cryptochironomus (Cryptochironomus) rostratus Kieffer, 1921, Dicrotendipes pallidicornis (Goetghebuer, 1934), Polypedilum sp., Polypedilum (Tripodura) bicrenatum Kieffer, 1921, Polypedilum (Pentapedilum) sordens (van der Wulp, 1875), Micropsectra radialis Goetghebuer, 1939, and Tanytarsus sp.
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    Contributions to the Knowledge on Aquatic/Semi-Aquatic Coleoptera (Insecta) Fauna of Turkey with First Records in Turkish Thrace
    (Gazi Entomological Research Soc, 2021) Aydin, Gazel Burcu; Camur-Elipek, Belgin; Topkara, Esat Tarik
    In the present study, adult specimens belonging aquatic/semi-aquatic coleopteran collected from 1986 to 2002 in Turkish Thrace were evaluated taxonomically. Altogether, a total of 23 species belonging to the families Dytiscidae, Haliplidae, Noteridae, Gyrinidae, Helophoridae and Hydrophilidae were determined. A total of 12 species Hydaticus (Hydaticus) aruspex Clark, 1864, Aulonogyrus concinnus (Klug 1834), Cercyon (Cercyon) littoralis Gyllenhal 1808, Gyrinus (Gyrinus) distinctus Aube 1836, G. (Gyrinus) substriatus Stephens 1829, Haliplus (Liaphlus) flavicollis Sturm 1834, Helophorus (Helophorus) grandis Illiger 1798, Hydrochara flavipes (Steven 1808), Laccobius (Laccobius) minutus (Linnaeus 1758), Laccophilus hyalinus (De Geer 1774), Platambus maculatus (Linnaeus 1758), Rhantus (Rhantus) suturalis (MacLeay 1825) were determined for the first time from Turkish Thrace. The aquatic habitat distributions of the species were also compared by the statistically using Shannon-Wiener diversity index and Bray-Curtis similarity index.
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    Evaluation of ecological risk analysis for benthic macroinvertebrates in paddy fields in the Meric-Ergene River Basin (Turkish Thrace)
    (Walter De Gruyter Gmbh, 2022) Aydin, Gazel Burcu; Camur-Elipek, Belgin
    Benthic macroinvertebrates are very important components of aquatic environments, and monitoring their population dynamics helps us understand the effects of environmental factors on ecosystems. This study aimed to determine the dynamics of benthic macroinvertebrate fauna in paddy fields in the Meric-Ergene River Basin (Turkish Thrace region) by investigating some physicochemical environmental parameters that may affect its distribution. For this purpose, water and sediment samples were collected from paddy fields in the study area during the cultivation season, including spring, summer and autumn of 2016, taking into account the water resources that supply the rice fields (artesian water, the Meric River, the Ergene River and Meric-Ergene mixed water). A total of 47 taxa (on average 8953 individuals per m(2)) were identified at the study sites. Water samples were analyzed to determine water temperature, pH, conductivity, salinity, total dissolved solids, calcium, magnesium, total hardness, nitrite nitrogen, nitrate nitrogen, phosphate, sulfate, dissolved oxygen and pesticides, and sediment samples were analyzed to determine the content of some heavy metals, including Cd, Ni, Cu, and Mn. The biological risk index (mERM-Q) and the potential ecological risk index (RI) were applied to the data and a hypothetical ecological risk analysis was conducted using our data and data available in the literature to assess the ecological risk profile of the ecosystem based on benthic macroinvertebrates. To this end, environmental factors were grouped based on the literature as heavy metals (S1), nutrients (S2), other physicochemical parameters (S3) and pesticides (S4), while organisms were grouped as Oligochaeta, Chironomidae, Insecta and others based on the dynamics of benthic macroinvertebrates to assess pressure factors. As a result, pesticides (S4) were found to exert the strongest ecological pressure on benthic macroinvertebrate fauna in paddy fields in the Meric-Ergene River Basin.
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    Spatial and temporal evaluation of the physicochemical quality of domestic/industrial water in the Kirklareli Reservoir (Turkish Thrace)
    (Serbian Chemical Soc, 2022) Guher, Huseyin; Oterler, Burak; Elipek, Belgin Camur; Yeler, Okan; Aydin, Gazel Burcu
    The Kirklareli Reservoir, located in the Meric-Ergene River Basin, is an important drinking/industrial freshwater resource of the Kirklareli Province. In order to ensure the sustainable use of this important reservoir, its current situation should be examined periodically and evaluated by multivariate analyses. For this reason, water samples were taken between the dates April 2018 and February 2019 at monthly intervals from 3 different stations. The data on the environmental and physicochemical variables (water temperature, dissolved oxygen, pH, salinity, conductivity, total dissolved solids, chlorophyll-alpha, light permeability, fluoride, chloride, NO2-N, NO3-N, PO4, SO4 and essential/potentially toxic elements) were measured and evaluated according to the classes of surface water quality control regulation of Turkey. The parameters exceeding first-class water quality values (chlorophyll-alpha, pH, NO2-N, chloride, selenium) were mapped in GIS using the spline integration approach. In addition, the sodium absorbtion ratio, Kelly index values and magnesium ratio, were calculated to evaluate the water quality for agricultural irrigation water standards. The water quality of the reservoir was evaluated using multivariance analyses (Bray-Curtis similarity index, correspondence analyses, Pearson correlation index). As a result, it was emphasized that the use of the GIS approach is a potential useful method for monitoring the sustainable water quality of the Kirklareli Reservoir, which was determined to have an oligomesotrophic character.