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This study presents the length-weight relationships (LWR) for 12 commercial fish species from coastal waters off South Corfu Island (N. Ionian Sea, Greece). All fish originated from the catches made by a single artisanal fisherman during April – September 2009. Multiple types of predominantly static fishing gear were used, mainly gillnets (mesh size: 28 mm) operated at depths of 10–40 m and trammel nets (mesh sizes: 22, 24, 28, 32, 34, 36, 40 mm) operated at depths of 7–70 m. Moreover, bottom longlines and trolling lines were occasionally used, at depths of 20–50 m and 35 m, respectively. Length (TL) in cm and weight in g of all the individuals in the catches were measured in the laboratory. Estimates of the b parameter ranged between species from 2.652 to 3.593. For none of the fish species examined in the present paper has LWR information been published before for the N. Ionian Sea, and for six of them (i.e. for Epinephelus costae, Labrus viridis, Oblada melanura, Sarda sarda, Scomber coliasand Scorpaena porcus) there is no LWR information for the Ionian Sea as a whole. The results of this study may thus contribute in fisheries management and marine conservation in the Ionian Sea by providing baseline LWR information for several commercial fish species based on samples of local populations. Moreover, this study contributes in complementing the few LWR datasets that exist in the international literature for E. costaeand L. viridis.

ABSTRACTThe present study is focused on the examination and evaluation of environmental pressures on the aquatic resources of western Macedonia region (Greece) and particularly in Kozani lignite mines area, and on the development of a water quality monitoring system in the region, in order to identify potential impacts to the adjacent water resources. A multi-parametric sensor system was installed in three representative sites of the target area and the corresponding measured parameters included pH, temperature, conductivity, nitrate ions (), sulfate ions (), and chloride ions (Cl−) for a period of about 10 months. Additionally, certain other complementary physicochemical parameters (turbidity, hardness, COD, BOD5. DO, TSS, , , Fe, and Al) were measured in selected grab samples, collected from certain points in the same area, in order to have an integrated view of water quality. The pH values ranged between 7.6 and 8.3 and remained quite stable in all three monitoring stations. Conductivity values ranged from 188 to 1,082 μS/cm; in addition, the wide content—observed only in Ag. Dimitrios Public Power Corporation Station—was attributed to the discharge of partially treated wastewater effluents. A detailed analysis of recorded measurements on a day-to-day level, especially for and Cl−values, revealed potential pollution incidents. Comparison with meteorological data of the area for the corresponding period did not show any significant correlation between measured concentrations and rainfall quantity, indicating a negligible effect of surface drainage on water quality.

The present study is focused on the examination and evaluation of environmental pressures on the aquatic resources of western Macedonia region (Greece) and particularly in Kozani lignite mines area, and on the development of a water quality monitoring system in the region, in order to identify potential impacts to the adjacent water resources. A multi-parametric sensor system was installed in three representative sites of the target area and the corresponding measured parameters included pH, temperature, conductivity, nitrate ions (NO3-), sulfate ions (SO42-), and chloride ions (Cl-) for a period of about 10 months. Additionally, certain other complementary physicochemical parameters (turbidity, hardness, COD, BOD5. DO, TSS, NO4-, NH4+, Fe, and Al) were measured in selected grab samples, collected from certain points in the same area, in order to have an integrated view of water quality. The pH values ranged between 7.6 and 8.3 and remained quite stable in all three monitoring stations. Conductivity values ranged from 188 to 1,082 μS/cm; in addition, the wide NO3-content—observed only in Ag. Dimitrios Public Power Corporation Station—was attributed to the discharge of partially treated wastewater effluents. A detailed analysis of recorded measurements on a day-to-day level, especially for SO42-and Cl-values, revealed potential pollution incidents. Comparison with meteorological data of the area for the corresponding period did not show any significant correlation between measured concentrations and rainfall quantity, indicating a negligible effect of surface drainage on water quality.

AbstractContinuous data of the concentration measurements of respirable suspended particulates (PM10, particles with aerodynamic diameter smaller than or equal to 10 μm) were analyzed. These measurements were carried out at an urban and nearby industrial location in northern Greece for the 5-year period 1996–2000. The time series concentration trend was examined, the seasonal and diurnal variations were identified, and the lognormality of the daily mean concentration data sets was tested. Over the 5-year data-gathering period, the days on which the U.S. Environmental Protection Agency (EPA) 24-hr PM10standard was exceeded (episode days) were identified and their relation to prevailing synoptic-scale meteorological conditions was studied. The analysis led to useful information concerning the air quality levels, the contribution of the main pollution sources in this area, as well as some of the mechanisms that influence the PM10concentrations. It also was proved that the measured PM10concentrations are a result of a combination of processes including local anthropogenic sources, mesoscale transport, and resuspension. A complex system of sources and meteorological conditions modulate the heavy particulate pollution in the area of interest.

Zusammenfassung: Mit der Zunahme koronarchirurgischer Eingriffe ist eine Vermehrung der Patienten zu beobachten, bei denen eine inadäquate Menge oder Qualität an autologem Gefäßmaterial für die aortokoronare Revaskularisation vorliegen. Hier ist die Durchführung einer kompletten Revaskularisation gefährdet, wenn nicht sogar unmöglich, so daß auch die Risiken einer inkompletten Revaskularisation einzugehen sind. Trotz vielfältiger Bemühungen gibt es bis heute keinen zufriedenstellenden heterologen Gefäßersatz für die myokardiale Revaskularisation. Das Ziel dieser Arbeit war es, das Verhalten einer neuen heterologen Gefäßprothese zu evaluieren. Untersucht wurde die A. thoracica interna des Schweines (Porcine Internal Mammary Artery, sog. PIMA), die mittels eines neuartigen Verfahrens (No-ReactTM) präpariert worden war. Vom Mai 1994 bis Juli 1995 wurden 24 Patienten stets nach ausführlicher präoperativer Aufklärung mit diesem Xenograf versorgt (12 Frauen, 12 Männer). Das Alter betrug 69 Jahre (±5,6). Die Patienten erhielten insgesamt 64 Grafts (2,7/Pat.), 31 autologe und 33 heterologe. Von den 31 autologen waren es: 15 SVGs, 16 Arteriae thoracicae internae (14 LITA, 2 RITA). Zusätzlich wurden 33 heterologe PIMAs implantiert, 1–3 pro Patient, im Durchschnitt 1,4. Die Indikation zur PIMA wurde sehr streng, ausschließlich im Sinne einer Ultima-ratio-Maßnahme bei Fehlen weiterer autologer Gefäße, gestellt. Die verwendeten Xenografts hatten proximale Diameter von 3,0–5,0 mm und distale von 1,5–3,0 mm. 4 PIMAs wurden zum LAD-, 17 auf RCx-, 10 auf RCA-System und 2 auf den Ramus intermedius gelegt. Perioperativ starben 3 Patienten: bei 2 trat ein Low output cardiac Syndrom, bei 1 periop. Infarkt (LITA-Bypass-Gebiet) auf. Die Letalität stand nicht in Relation zur PIMA-Verwendung. Postoperative angiographische Kontrollen wurden bei 19 Patienten (79,2%) durchgeführt: 10 frühpostop. (<30 Tage) und 12 spätpostop. (>30 Tage). Die Frühergebnisse zeigten 6 verschlossene (43%) und 8 offene (57%) PIMAs. Die Spätergebnisse zeigten ein offenes (6,3%) und 15 verschlossene (93,7%) Xenografts. Trotz der ausgezeichneten Beschaffenheit, einfacher intraoperativer Verwendung, diverser Diameter und Längen sowie guter Verfügbarkeit muß die PIMA-Anwendung äußerst kritisch beurteilt werden. Aufgrund der angiographischen Kontrollen und wegen des kurzfristigen Nutzen wurde die PIMA-Implantation eingestellt. Wir raten dringend von der PIMA-Verwendung in aortokoronarer Position ab.