Findings of the Fish Inventory Within Lower Danube River From 2008 to 2020

Danalache, Tiberius; Holban, Elena; Deák, György; Parlog, Cosmin; Matache, Razvan; Cudalbeanu, Mihaela; Nicolae, Cristian Andi

doi:10.47068/ctns.2020.v9i18.016

Cited by 2 publications

(2 citation statements)

References 2 publications

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“…Further research by INCDPM [15] indicated that if Chilia Branch will no longer be used for migration due to navigability, as was the case for Sulina, the only migration route left will be St. George Branch, thus being a possible major risk to reduce the migration possibility with almost 67%.…”

Section: Introductionmentioning

confidence: 99%

Morphological changes analysis using 3D bathymetric surveys in Chilia Branch - Bystroe Channel bifurcation area

Tudor,

Deák,

Raischi

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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The Bystroe Channel project with transboundary environmental impact in the Danube Delta, area of great ecological significance that has already a strong anthropic footprint, requires close monitoring of water quality parameters in order to determine their tendencies and their impact on the ecosystem components. Riverbed bathymetry surveys using multibeam echo-sounders are of high interest due to the data resolution and coverage capabilities that surpass the single-beam methods. Two riverbed elevation datasets, recorded in consecutive years, have been used to carry out morphological comparative analysis for the area where Chilia branch bifurcates in Bystroe Channel and Old Stambul. The analysis has been performed both on the bathymetry grids as a whole and on 3 longitudinal and 9 transversal river sections, the morphological changes values being in majority included in [-0.5 m;+0.5 m], with a minimum of -2.4 m and a maximum of 2.2 m, showing the bifurcation influence on the erosion/deposition processes results.

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Section: Introductionmentioning

confidence: 99%

Morphological changes analysis using 3D bathymetric surveys in Chilia Branch - Bystroe Channel bifurcation area

Tudor,

Deák,

Raischi

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…Considerable efforts have been made to improve the farming conditions of the species to counter the over-exploitation of natural populations [2], and subsequently standardize the growing conditions. While, at least for Romania and the EU zone, sturgeon research in the wild developed at a fast pace, addressing various problematics, from age determination [3,4], telemetry [5][6][7][8], selection of reproduction habitats [9], body mass mathematical modeling [10] and migration [5,6,[11][12][13][14][15], in what concerns captive growth and breeding of the endangered sturgeon species, the scientific interest was significantly lower. 1216 (2023) 012021 IOP Publishing doi:10.1088/1755-1315/1216/1/012021 2 Environmental temperature and oxygen saturation are known to affect sturgeon development and physiology even at the larval state [16] as temperatures above 22 °C induce in A. baerii an increase in cortisol levels as a result of a probably higher metabolic rate.…”

Section: Introductionmentioning

confidence: 99%

Captive growth analysis of Siberian sturgeon juveniles (Acipenser baerii J. F. Brandt, 1869) fed on a commercial fodder and its importance to a sustainable development of the aquaculture sector

Deák,

Burlacu,

Lumânăroiu

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Sturgeon aquaculture is an important continuously developing sector within freshwater aquaculture and its sustainability is one of the most pressing matters nowadays. Thus, the urge to apprehend the mechanics of sturgeon growth in captivity as well as in nature is of immediate importance, considering the increase in customers’ requests for captive-grown sturgeon meat, caviar, and adjacent by-products. The present study evaluates several canonical growth indices in a controlled, indoor environment that included fluctuations in temperature, dissolved oxygen saturation, and ponderal density (g/L), known to affect sturgeon growth performance. Over the 91 days of evaluation, no significant correlation was found between the weight gain and the ponderal density, dissolved oxygen values, and temperature, among the 4 tanks used in the experiment setup, indicating, along with the lack of significant variance for the RCI per tank, that the growth observed is correlated only with the fodder fed to the fish.

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Findings of the Fish Inventory Within Lower Danube River From 2008 to 2020

Cited by 2 publications

References 2 publications

Morphological changes analysis using 3D bathymetric surveys in Chilia Branch - Bystroe Channel bifurcation area

Morphological changes analysis using 3D bathymetric surveys in Chilia Branch - Bystroe Channel bifurcation area

Captive growth analysis of Siberian sturgeon juveniles (Acipenser baerii J. F. Brandt, 1869) fed on a commercial fodder and its importance to a sustainable development of the aquaculture sector

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