The Lower Danube River–Danube Delta–North West Black Sea: A pivotal area of major interest for the past, present and future of its fish fauna — A short review

Bănăduc, Doru; Rey, Sónia; Trichkova, Teodora; Lenhardt, Mirjana; Curtean–Bănăduc, Angela

doi:10.1016/j.scitotenv.2015.12.058

Cited by 75 publications

(61 citation statements)

References 49 publications

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“…There are detailed studies at a national level for the Danube Delta and the great wetlands: Balta Ialomitei and Balta Brailei along the lower course of the Danube river (Banaduc et al 2016;Burada et al 2014;Catianis et al 2014;Coops et al 2008;Navodaru et al 2001;Raischi et al 2016). The quality and productivity of the biota within meander lakes localized in deltaic systems within the temperate area constituted the main topic of the studies within which we explain the variation and interdependence between the water flows communicating seasonally between the lotic and the lentic systems.…”

Section: Introductionmentioning

confidence: 99%

“…The productivity of the biota is the direct response of the flood pulse inducing a spatial and seasonal variability of water level fluctuation, and of the physical-chemical parameters (pH, EC, concentration and distribution of oxygen, nutrient availability) (Forsberg 1984;Furch 1984;Junk et al 1989;Melack 1984;Payne 1986) and biological ones (Affonso et al 2011;Sioli 1984), as well as of the benefits induced to the floodplain environment (Bayley 1995;Tockner et al 2000). Dissolved oxygen is an extremely important parameter for maintaining life throughout the aquatic environment (Banaduc et al 2016;Coops et al 2008;Navodaru et al 2001Navodaru et al , 2005. Water quality and the influence of the physicochemical parameters on the biota has determined most recent studies to also consider isolated lakes which are not of any particular economic importance but are individualized as biodiversity islands (Anton et al 2008;Barbulescu 2015;Borowiak 2014;Cudowski et al 2013;Gadzinowska 2013;Kundrat et al 2016;Marszelewski et al 2017;Merecki et al 2015;Mihu-Pintilie et al 2014;Pantea et al 2017;Pasztaleniec et al 2013;Petrovici et al 2010;Puri et al 2010;Romanescu 2003Romanescu , 2006Rzymski et al 2017;Sevian et al 2015;Sundri 2015;Ureche et al 2012;Wrzesinski et al 2015;Wu et al 2013).…”

Section: Introductionmentioning

confidence: 99%

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The variations of physico-chemical parameters during summer in Lake Erenciuc from the Danube Delta (Romania)

Romanescu

Mihu-Pintilie

Trifanov

et al. 2018

Limnological Review

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Lake Erenciuc is situated in the Danube Delta (Romania) and was created in the abandoned riverbed of the Sfântu Gheorghe arm. It is the largest meander lake in Romania. During spring–summer, the physico-chemical parameters of water have been measured in seven lake sampling points and one at the Sfântu Gheorghe branch, which supplies the lake through Erenciuc channel. The area around Lake Erenciuc belongs to the category of strictly protected areas within the Danube Delta Biosphere Reserve. The following water quality parameters were measured: temperature (T: °C); pH (pH units); Luminescent Dissolved Oxygen (LDO: mg dm−3); Dissolved Oxygen saturation (DO: %); water tension (U: mV); Electrical Conductivity (EC: μS cm−1); Total Dissolved Solids concentration (TDS: mg dm−3). The recorded values are easily differentiated across the entire length of the elongated lake path, especially between inflow (upstream) and outflow (downstream). The parameters recorded during the spring–summer period, with high flow rates and high water levels, demonstrate good lake water quality, especially oxygenation. The study also demonstrates that high waters refresh and recalibrate the water quality in isolated lake basins.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The variations of physico-chemical parameters during summer in Lake Erenciuc from the Danube Delta (Romania)

Romanescu

Mihu-Pintilie

Trifanov

et al. 2018

Limnological Review

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“…Anthropogenic impact is one of the most important all-encompassing determinants that lead to changes in the structure of fish communities (Lenhardt et al, 2009;Stefanov et al, 2011;Joy, 2014;Halpern et al, 2015;Bănăduc et al, 2016;Gökçe et al, 2016;Monte-Luna, 2016). The anthropogenic factors that can affect identification and mapping of this species on the ground were the basis for in situ management to improve the ecological status of the researched fish species' population.…”

Section: Introductionmentioning

confidence: 99%

<i>Hucho hucho</i> (Linnaeus, 1758): last natural viable population in the Eastern Carpathians – conservation elements

Curtean–Bănăduc¹,

Maric²,

GÁBOR³

et al. 2019

Turk J Zool

Self Cite

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There is great variation in the conservation status of the last habitats with long-term natural viable populations of the salmon species Hucho hucho in Maramureş Mountains Nature Park, Eastern Carpathians (Romania). According to the specific guidelines for Natura 2000, 42.11% are in good conservation status, 31.57% are of average status, and 26.32% are in a partially degraded condition. In this study area, 6 main risk elements were identified related to human impact on the environment: poaching, minor riverbed morphodynamic changes, liquid and solid natural flow disruption, habitat fragmentation leading to isolation of fish populations, organic and mining pollution, and destruction of riparian tree and shrub vegetation. All of them have contributed to the decrease of H. hucho distribution in the study area to about 50% of the previous local range. Individuals of this species were recorded in only 21 of the 370 sampling stations.

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“…Conservation, usage and management of water supplies are therefore extremely important. After tropical jungles, wetlands are the second most important habitat for biological production and biodiversity conservation (Brinson et al, 1981;De Groot et al, 2006;Bănăduc et al, 2016). Especially, drought influence on soil moisture content cause a diminishment in wetlands and finally result in wetland loss, leading to disruption of ecological properties and processes, and a decrease in biodiversity (Poons et al, 2008;Wang et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

The Determination of Some Pollution Parameters, Water Quality and Heavy Metal Concentrations of Aci Lake (Karapinar/Konya, Turkey)

Akköz

2017

Transylvanian Review of Systematical and Ecological Research

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Water quality parameters were measured in Acı Lake. The measurements were carried out in water samples taken from five different stations over ten months. According to the results of the analyses done on the samples of water, without taking into consideration the differences of seasons and stations, the average annual values of heavy metal concentrations for Cr, Cu and Ni were found to be 0.10 mg/l, 0.11 mg/l and 0.19 mg/l dry weight, respectively. Surprisingly, Co and Cd metals were not detected at any station or at any season. Other water quality parameters, namely pH, turbidity and nitrate, fall in the intermediate value range for these measures. The comparisons of the measured parameters and the metal concentration with the water quality index show that the water quality of Acı Lake prevents the water being used as irrigation water due to high salt levels. ZUSAMMENFASSUNG: Bestimmung einiger Verunreinigungsparameter, derWassergüte und der Schwermetallkonzentrationen des Aci-Sees (Karapinar/Konya, Türkei).Im Aci-See wurden die Gewässergüteparameter gemessen. Die Wasserproben wurden innerhalb von zehn Monaten an fünf Probestellen entnommen. Entsprechend den Ergebnissen der untersuchten Wasserproben -ohne Berücksichtigung der jahreszeitlichen und der standörtlichen Unterschiede-wurden die jährlichen Mittelwerte des Schwermetallgehaltes von Cr, Cu und Ni mit jeweils 0,10 mg/l, 0,11 mg/l und 0,19 mg/l Trockengewicht ermittelt. Überraschender Weise wurden die Schwermetalle Co und Cd innerhalb des Untersuchungszeitraumes an keiner der Probestellen vorgefunden. Messungen der pH Werte, der Trübung und Nitrate wurden als zusätzliche Gütewerte hinzugefügt. Der Vergleich der gemessenen Parameter und der Schwermetallkonzentration mit dem Gewässergüte-Index zeigen, dass das Wasser des Aci Sees aufgrund seines hohen Salzgehaltes für Bewässerungszwecke nicht verwendet werden kann.REZUMAT: Determinarea parametrilor de poluare, calitatea apei și concentrația metalelor grele din lacul Acı (Karapinar/Konya, Turcia).Parametri de calitate ai apei au fost măsurați pentru lacul Acı. Măsurătorile, au fost realizate pentru probe de apă din cinci stații pe parcursul a zece luni. Rezultatele arată, fără a lua în considerare diferențele sezoniere și stațiile, că valorile medii anuale a concentrațiilor de metale grele precum Cr, Cu și Ni sunt următoarele: 0,10 mg/l, 0,11 mg/l și 0,19 mg/l din substanța uscată. Nu au fost observate metale precum Co sau Cd în nici un sezon sau stație. Pe lângă acestea, pH-ul, turbiditates și o concentrația de nitraţi au fost măsurate. Comparația concentrațiilor măsurate cu indicele de calitate al apei arată că apa din lacul Acı nu poate fi acceptată pentru irigare datorită nivelului ridicat de săruri.

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The Lower Danube River–Danube Delta–North West Black Sea: A pivotal area of major interest for the past, present and future of its fish fauna — A short review

Cited by 75 publications

References 49 publications

The variations of physico-chemical parameters during summer in Lake Erenciuc from the Danube Delta (Romania)

The variations of physico-chemical parameters during summer in Lake Erenciuc from the Danube Delta (Romania)

<i>Hucho hucho</i> (Linnaeus, 1758): last natural viable population in the Eastern Carpathians – conservation elements

The Determination of Some Pollution Parameters, Water Quality and Heavy Metal Concentrations of Aci Lake (Karapinar/Konya, Turkey)

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