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Abstract Book 7th Symposium for European Freswater Sciences held in Girona, june 27 – july 1 - 2011 Editor: AIL, Asociación Ibérica de Limnología Compiled by : Lluís Zamora and Sergi Sabater ISBN 978-84-937882-2-3 Printed by “Serveis Repogràfics de l’ICRA” Abstract Book 7SEFS, Girona - 2011 SS3 SS11 Acuña, Vicenç 1 ; Díez, Joserra 2 ; Flores, Lorea 2 ; Aguilera Becker, Rosana 1 ; Marcé, Rafael 1 ; Sabater, Elosegi, Arturo 2 Sergi 1,2 1Catalan Institute For Water Research. Carrer Emili Grahit 101, 1Catalan Institute For Water Research (ICRA). Emili Grahit 101, GIRONA. 17003 - SPAIN, [email protected] GIRONA. 17003 - SPAIN, [email protected] 2Faculty of Science and Technology, University of the Basque Country 2Institute of Aquatic Ecology, University of Girona STREAM RESTORATION BY WOOD ADDITION MODELING INSTREAM NUTRIENT PROCESSES – CONNECTING REACH AND BASIN SCALES AT THE CATCHMENT SCALE: TESTING THE BY ECOSYSTEM SERVICES EFFICIENCY LOSS HYPOTHESIS Traditional forests harvesting in temperate regions Streams and rivers transport nutrients from terrestrial constraints the tree age distribution, impeding trees to sources and also serve as hot spots for nutrient age and fall. This management does not only affect transformation, storage and removal. Such systems thus terrestrial ecosystems, as dead wood might enter become regulators of exported material to stream ecosystems, where is one of the most important downstream ecosystems and their functioning should be structural elements. Failure to link ecological processes considered as part of entire river networks. A hybrid and their effects on human welfare has favored process-based and statistical model (SPARROW, traditional forest harvesting that focuses on the SPAtially Referenced Regression On Watershed maximization of the service wood provisioning, whereas attributes) was applied to the Llobregat River Basin, a the cost on other services from terrestrial and aquatic highly impacted watershed in NE Spain, in order to ecosystems is not considered. Here, we show that, in evaluate the yearly annual nitrate and phosphate loads several stream reaches flowing through a temperate within the period of 2000-2006 and to study the forest and into a drinking water reservoir, the lack of processes affecting the nutrient transport and retention dead wood in streams has an important economic cost in the river channels. SPARROW estimates nutrient because of the effects on the services: fish provisioning, retention based on a first-order reaction, where the opportunities for recreation and tourism, water amount of nutrient uptake is directly proportional to purification and erosion prevention. Reach scale active the available nutrient concentration. Data of nutrient restoration actions by wood addition demonstrated that spiraling metrics have shown that the efficiency of the total economical value of streams increased process rates relative to concentration eventually between 10 and 100 fold, accounting as much as 2.5 € declines. Therefore, the model was modified to include per meter of restored river length and year. Among such efficiency loss and better capture the instream services, the service erosion prevention was that processes related to biological uptake. Model calibration contributing the most to the total economical value. results provided a reasonably good fit between Cost-benefit analyses of the performed restorations at measured and predicted loads. In the nitrates model, the reach scale, as well as two scenarios where source variables such as the extension of forested land restoration was carried out at the basin scale, by and cultivated land were strongly significant (p< 0.005). actively placing wood or passively allowing the forest to In the case of phosphates, significance reached the same age in a 30 m forest ribbon at each side of the streams, levels for urban areas and forested land as sources. In pointed out major differences among stream orders, as the two models the stream decay coefficients were the time required to recover the restoration investment statistically significant, indicating the potential role of ranged from 4 years in the stream order 1 to 35 in the instream processing in limiting the nutrient export. stream order 3. Our valuation of the services provided Thus, this study suggests that it might be necessary to by dead wood may prove useful in making appropriate include the concept of a partial saturation effect in decisions for a more efficient and sustainable use of uptake efficiency (expressed as a power law)when forests fringing with stream ecosystems in temperate estimating in-stream nutrient retention, which has not regions. been taken into account in many previous modeling efforts of nutrient cycling at broad scales. 3 Abstract Book 7SEFS, Girona - 2011 SS15 O3 Akbulut, Nuray 2 ; Akbulut, Aydýn 1 ; Solak, Cüneyt Akbulut, Nuray 1 ; Akbulut, Aydýn 2 ; Atasagun, Sibel 3 Nadir 3 ; Günsel, Selgün 4 ; Arslan, Naime 4 2Hacettepe University. Faculty Of Science, Dept Of Biology, ANKARA. 1Gazi University Faculty of Arts and Science. Besevler, ANKARA. 6800 6800 - TURKEY, [email protected] - TURKEY, [email protected];[email protected] 1Hacettepe University, Faculty of Science, Department of Biology, 2Gazi University, Faculty of Arts and Science, Department of Biology, 06800 Beytepe, Ankara, Turkey 06500 Beþevler, Ankara, Turkey 3Dumlupýnar University, Faculty of Arts and Science, Department of 3Ankara University, Faculty of Science, Department of Biology, 06100, Biology, 43100, Kütahya, Turkey. Tandoðan, Ankara, Turkey 4Cengiz Topel Industrial Vocational High School, Lefkoþa, Cyprus 4Osman Gazi University, Faculty of Arts and Science, Department of Biology, 26480, Meþelik, Eskiþehir, Turkey USE OF EPILITHIC DIATOMS TO EVALUATE WATER QUALITY OF THE DELICE RIVER THE EVALUATION OF THE WATER QUALITY (KIZILIRMAK) IN TURKEY AND TRACE METAL CONCENTRATION THROUGH THE KIZILIRMAK RIVER OF TURKEY Diatoms are known to be very sensitive to changes in chemical and physical variables such as nutrients. They Kýzýlýrmak is the longest river of Turkey (1355 km). respond quickly to such changes because of their short The river is starting at Kýzýldað in the Sývas province it life-cycles and differing tolerances to the variables. flows across the Central Anatolian plain and enters the Epilithic diatoms assemblages were used to evaluate Black Sea near the town of Samsun. Rapid water quality in the Delice River and its arms which is industrialization and the discharge of potentially toxic one of the main tributaries of the Kýzýlýrmak River. In trace metals into the river have become many problem this study, some physico-chemical characteristics and recently. Trace metal content of water, sediment and epilithic diatoms were investigated in the ten different fish were evaluated together with water quality sampling locality on the Kýzýlýrmak and Delice Rivers parameters during 2008 in The Kýzýlýrmak River. between May 2007 and September 2008. During the During the study 10 different localities were selected study totaly 173 diatom taxa were identified from the according to the pollution locality to observe the stations. Water quality were evaluated according to sources and bioacumulation through out from Sývas to diatom taxa by using OMNIDIA Software Program. Ankara Trace metal content (Al, Mn, Fe, Ni, Cd, Co, The results show that EPD-I, IBD, IPS, IDG, CEE, TDI Cr,As, Pb, Hg, Cu) of water, sediment and fish species and ROTTtp indices have quite high correlation with the were determined by ICP-MS together with physico- physico-chemical variables and also, IDG, IPS, TDI and chemical variables. According to Water Contamination IBD indices seems to be the best for this study. Key Control Regulation 2004 Kýzýlýrmak River has III-IV Words: Kýzýlýrmak, Delice River, Diatom indices, class water quality in terms of SO4, Na and Al; II. Class OMNIDIA, water quality, Turkey, in terms of Cl. Whereas the other metals were highly accumulated in the sediment of Kýzýlýrmak river. In this regard, the discharges of the wastes into the water should be continously monitored. Key Words: Heavy metal, water quality, criteria, Kýzýlýrmak River, Turkey 4 Abstract Book 7SEFS, Girona - 2011 O4 O3 Akcaalan, Reyhan ; Koker, Latife ; Sozer, Basak ; Alba-Tercedor, Javier ; Rodriguez-López, Roberto ; Oguz, Basak ; Albay, Meriç Poquet, José Manuel Istanbul University, Fisheries Faculty. Ordu Cad. No: 200 Laleli, University Of Granada. Department Of Animal Biology (Zoology). ISTANBUL. 34470 - TURKEY, [email protected] Campus De Fuentenuev, GRANADA. 18071 - SPAIN, [email protected] N/P RATIO OR ALLELOPATHY IS EFFECTING MEDPACS AND ACADARI, BEYOND THE MICROCYSTIN PRODUCTION OF DEVELOPMENT OF ECOLOGICAL STATUS MICROCYSTIS AERUGINOSA ASSESSMENT TOOLS FOR FRESHWATER ECOSYSTEMS: PREDICTING THE EFFECT OF Microcystin production of cyanobacteria has been GLOBAL WARMING ON stimulated with different factors, i.e. temperature, light, MACROINVERTEBRATE COMMUNITIES OF nutrient inputs, grazing or allelopathy. Microcystis aeruginosa and Monoraphidium arcuatum were isolated SPANISH MEDITERRANEAN WATER-COURSES from the same environment and generally found A lot of freshwater ecology literature has been together in the bloom period of Microcystis. These produced after the publication of the European WFD in strains were grown in batch cultures as monoculture 2000. Most focus on the development of assessment and mixed cultures to examine the effect of N/P ratio tools The MEDiterranean Prediction And Classification and