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Tytuł:
Model for the Volume-Area-Depth Relations of Midfield Ponds using LiDAR
Autorzy:
Fiedler, M.
Antkowiak, M.
Oliskiewicz-Krzywicka, A.
Zbierska, A.
Powiązania:
https://bibliotekanauki.pl/articles/124095.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
midfield pond
LiDAR
DEM
Opis:
Small midfield ponds have important functions in the hydrology and ecology of hummocky areas of Poland. Because of their sensitivity to meteorological conditions, their number and hydroperiod are altered as a result of climate changes and agriculture pressure. Accurate estimation of the pond area and storage capacities requires up-to-date high-resolution elevation data. In this paper, we developed 0.2 m and 1.0 m bare-earth DEMs from LiDAR data and compared them with DEMs obtained from old bathymetric maps. Then, we calculated A-h and V-h relations and compared them with the relations derived from simplified models describing the pond shape. The analyses showed that LiDAR data are also useful for detecting changes in the ponds morphometry.
Źródło:
Journal of Ecological Engineering; 2017, 18, 6; 36-42
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Studies on some physico-chemical parameters of cyanophycean members and correlation coefficient of eutrophic ponds in Chidambaram, Tamil Nadu, India
Autorzy:
Elayaraj, B.
Selvaraju, M.
Powiązania:
https://bibliotekanauki.pl/articles/10938.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
physicochemical parameter
phytoplankton
correlation coefficient
eutrophic pond
pond
Chidambaram town
Tamil Nadu
India
Opis:
The present study deals with the statistical analysis of physico-chemical parameters and cyanophycean members of two pond water quality of Chidambaram, Cuddalore district (Tamil Nadu). The qualities of pond water were analyzed for six months. Eleven important parameters were included in statistical analysis. The qualities of pond water have been assessed by calculating mean, standard deviation and correlation coefficient. Correlation studies of hydrobiology with physico-chemical parameters revealed that the relationship between phytoplankton density in general and that of the specific groups are highly complex and often controlled by interactions of different factors. In the both pond water the correlation coefficient test revealed that cyanophycean members positively correlated with temperature, pH, CO2, alkalinity, hardness, nitrate, BOD and COD at 1 % and 5 % level significant, where as it is negatively correlated with acidity and dissolved oxygen. In the present study it can be concluded that the cyanophycean members are highly tolerant organisms. They prefer to grow at higher temperatures and in highly alkaline, BOD and COD waters. Hence they can with stand high levels of contaminated waters of Thillai Kali Kovil pond, when compared to Ilamiyakkinar Kovil pond.
Źródło:
International Letters of Natural Sciences; 2014, 11, 2
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zooplankton structure in midfield ponds in north-west part of Poland
Autorzy:
Brysiewicz, A.
Jankowski, M.
Tański, A.
Powiązania:
https://bibliotekanauki.pl/articles/101396.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
zooplankton
midfield pond
agricultural areas
Opis:
Midfield ponds are characterised by a rich biodiversity. A significant role in the function of these specific water ecosystems is played by resident zooplankton, which is a valuable component of numerous trophic networks. The aim of the present work was to study the taxonomic composition, concentration and biomass of zooplankton in two midfield ponds situated in the area of one commune, but geomorphologically different from each other. Experiments were conducted in the summer seasons (June-August) in the years 2011-2013 in two ponds. The presence of 55 zooplankton taxa, commonly present in such water reservoirs in Poland, was observed. Most species were determined. The largest group comprised rotifers (Rotifera) - 35 taxa. The crustacean zooplankton was less diverse: 11 taxa of copepods (Copepoda) and 9 taxa of water fleas (Cladocera) were found. The reservoir in Stare Czarnowo exhibited a greater number of taxa, where as many as 40 taxa were observed. However, 35 taxa belonging to various zooplankton groups were found in the pond in Żelisławiec. The relatively low Jaccard index confirmed small qualitative similarity between the studied ponds. Both reservoirs contained representatives of species defined as characteristic for oligosaprobic and mesosaprobic waters, which may indicate small contamination of the two ponds and the occurrence of a large amount of organic matter undergoing decomposition.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2017, IV/2; 1673-1686
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zmiany zapasów wody w latach o różnych sumach opadów, w śródleśnych oczkach wodnych, na przykładzie Leśnictw Wielisławice i Laski
Water Storage Changes in Years with Different Precipitation Sums, in Ponds Located in the Forest, on the Example of Wielisławice And Laski Forestry
Autorzy:
Korytowski, M.
Szafrański, C.
Powiązania:
https://bibliotekanauki.pl/articles/1819035.pdf
Data publikacji:
2013
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
oczka wodne
sumy opadów
pond
precipitation
Opis:
The paper presents the results of researches carried in 2002/2003, 2003/2004 and 2009/2010 hydrological year in catchments pond No 1 and 6 located in Wielsiławice and Laski Forestry at Siemianice Experimental Forest Farm of Poznań University of Life Sciences located about 15 km south-east from Kępno. Analysed areas there are situated is a part of Niesób and Pomianka catchments – left-side tributary of Prosna River. The catchment area of pond No 1 is 7.6 ha, and there is forestation 100%. Whereas the catchment area of pond No 6 is about 37 ha, there is forestation 40% and the rest 60% area investigated catchment is arable lands. Predominance forest habitat in catchments analysis ponds is fresh mixed broadleaved forest, about area 95%, where predominant species of tree stand is 100 years old pine. Analysis pond No 1 and 6, of mild scarps, are natural pond melting out. Area of pond No 1 is 0.13 ha, whereas pond No 6 is 0.35 ha, and averages depths are properly 1.0 m and 1.4 m. Hydrological year 2002/2003, in which the rainfall total was 68 mm lower than average multiannual rainfall, was a dry year. In average hydrological year 2003/2004 rainfall total was 47 lower than multiannual rainfall. Whereas hydrological year 2009/2010, in which the rainfall total was 281 mm higher than average multiannual rainfall, was a wet year. The researches confirmed, that water storages in pond No 1 and 6 renovation in year cycle was depend of meteorological conditions. Water level changes and related water storage changes were especially connected to precipitation sums in individual half-year analysis year. The researches show to, that in all analyzed hydrological years higher water storage changes about -100 mm to 480 mm, in pond No 1, were has about 0.22 ha lower area than pond No 6. Whereas changes water storage in pond No 6 reached, in analyzed years, value about -25 mm to 340 mm.
Źródło:
Rocznik Ochrona Środowiska; 2013, Tom 15, cz. 2; 1567-1579
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Thermal and Oxygen Conditions in Carp Ponds During the Summer Period
Autorzy:
Wiśnios, M.
Kanownik, W.
Powiązania:
https://bibliotekanauki.pl/articles/124350.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
fish pond
dissolved oxygen
water temperature
Opis:
The work presents changes of oxygen indices in carp ponds during the summer season. The basis of the research were regular water tests conducted in two ponds: Mydlniki II intended for carp farming in the second year of fish production cycle and Bocian used for carp farming in the third (final) year of breeding. The temperature of pond water in July and August was optimal for development and farming of cyprinid fish and ranged from 16.6 to 30.5 °C. The lowest value of oxygen dissolved in water (6.4 mg·dm sup>-3) was registered in Mydlniki II pond and was higher than the oxygen optimum for carp (5 mg·dm sup>-3). Oxygen saturation in water of fish ponds exceeded the optimum upper limit value (168%) on a few dates, however, it posed no lethal threat for fish. In August in Bocian pond oxygen saturation fell within the range of optimal values, creating better conditions for fish development. In the secondary pond (Mydlniki II) it was found that oxygen saturation in water on 12 dates was lower than the low optimal value (96%).
Źródło:
Journal of Ecological Engineering; 2015, 16, 5; 144-150
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Seasonal changes in the accumulation of nutrients in the hydrosphere-atmosphere interface of urban ponds (Slupsk, northern Poland)
Sezonowe zmiany akumulacji substancji biogenicznych w interfazie hydrosfera-atmosfera stawów miejskich (Słupsk, północna Polska)
Autorzy:
Antonowicz, J.P.
Wolska, M.
Libera, A.
Powiązania:
https://bibliotekanauki.pl/articles/85025.pdf
Data publikacji:
2016
Wydawca:
Akademia Pomorska w Słupsku
Tematy:
seasonal change
nutrient accumulation
hydrosphere
atmosphere
urban pond
pond
surface microlayer
Slupsk town
Polska
Opis:
Seasonal changes were investigated in concentrations of biogenic substances in the surface microlayer and subsurface water in ponds in the city of Słupsk (Northern Poland). Water samples from the surface microlayer were collected using the Garrett screen. Those water samples were analysed to determine concentrations of nitrogen and phosphorus compounds. It was found that biogenic substances are accumulated in the surface microlayer to a greater extent than in the subsurface water layer. This accumulation is subjected to seasonal changes. The source of the analysed nitrogen and phosphorus compounds in the surface microlayer was connected with their concentration in subsurface water.
Badano sezonowe zmiany stężeń substancji biogenicznych w mikrowarstwie powierzchniowej i wodzie podpowierzchniowej w stawach w Słupsku (północna Polska). Próbki wody z mikrowarstwy powierzchniowej pobierano za pomocą siatki Garretta. W pozyskanych próbkach wody badano stężenie związków azotu i fosforu. Stwierdzono, że substancje biogeniczne akumulują się w mikrowarstwie powierzchniowej w wyższym stopniu niż w wodzie podpowierzchniowej. Akumulacja ta podlega sezonowym zmianom. Źródłem badanych związków azotu i fosforu w mikrowarstwie powierzchniowej jest ich koncentracja w wodzie podpowierzchniowej.
Źródło:
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline; 2016, 20
1643-0115
Pojawia się w:
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Is sclerochronology a waste of time?
Autorzy:
Eszer, O.
Urbanska, M.
Andrzejewski, W.
Gierszal, H.
Powiązania:
https://bibliotekanauki.pl/articles/83998.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Mikołaja Kopernika. Wydział Biologii i Ochrony Środowiska. Stowarzyszenie Malakologów Polskich
Tematy:
sclerochronology
Sinanodonta woodiana
age
growth rate
freshwater mussel
Chinese pond mussel
Eastern Asiatic freshwater clam zob.Chinese pond mussel
mussel
swan-mussel zob.Chinese pond mussel
Źródło:
Folia Malacologica; 2016, 24, 1
1506-7629
Pojawia się w:
Folia Malacologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of anthropopression on concentration of biogenic compounds in water of small ponds in farmland
Wplyw antropopresji na stezenia zwiazkow biogennych w wodach malych zbiornikow na terenach uzytkow rolnych
Autorzy:
Galczynska, M
Kot, M.
Powiązania:
https://bibliotekanauki.pl/articles/15064.pdf
Data publikacji:
2010
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
anthropopression
compound concentration
biogenic compound
water
small pond
pond water
farmland
nitrogen
phosphorus
oxygen deficit
Opis:
A rapidly diminishing number and degradation of water ponds cause many negative effects in the structure of agricultural ecosystems, by limiting surface retention and increasing migration of chemical compounds from the basin. The goal of this research was to find the influence of anthropopression on the chemical composition of water in field ponds. Analysis of some chemical and physical parameters was carried out on water samples collected once a month from 5 field ponds located in the District of Pyrzyce, Commune of Zabowo, between March and October 2004. The five water ponds differed with respect to the spatial development of their surroundings and their degradation. The concentration of N-NH4+ N-NO2- i N-NO3- oraz PO43- were measured according to the Polish Standards. The level of oxygen, temperature and water pH were measured immediately after collecting each sample of water. The analyzed field ponds were different in respect of the degree of degradation processes. What was characteristic of the five ponds was a large variation in concentrations of biogenic compounds in water, depending on the form of anthropopression and vegetation in and around the ponds. The high level of PO43- and N-NH4+ in water and the succession of water plants prove that ponds 2, 3 and 4 are highly eutrophicated. Due to the extremely high concentration of PO43- in the water, field pond 2, located near a former state farm, can be classified as hypertrophic. This pond also had the biggest oxygen deficit.
Szybkie zanikanie i degradacja oczek wodnych pociąga za sobą wiele negatywnych zjawisk w strukturze agroekosystemów, zmniejsza retencję powierzchniową i powoduje wzrost migracji składników ze zlewni. Celem pracy było ustalenie wpływu antropopresji na skład chemiczny wód śródpolnych oczek wodnych. Materiał do analiz wybranych wskaźników chemicznych i fizycznych wód stanowiły próbki wodne pobierane raz w miesiącu z 5 oczek śródpolnych położonych w powiecie pyrzyckim, w gminie Zabowo, w okresie od III do X 2004 roku. Badane zbiorniki różniły się nie tylko sposobem zagospodarowania terenu w bezpośrednim ich sąsiedztwie, ale również formą dewastacji. Oznaczenia stężeń: N-NH4+ N-NO2- i N-NO3- oraz PO43- wykonano zgodnie z Polskimi Normami. W terenie, bezpośrednio po poborze prób, zmierzono stężenie tlenu, temperaturę i pH wód. Ustalono, że analizowane śródpolne oczka wodne różniły się stopniem zaawansowania procesów degradacji. Cechą charakterystyczną badanych obiektów była duża zmienność stężeń związków biogennych w wodzie zależna od formy antropopresji oraz roślinności występującej w zbiorniku i wokół niego. Wysoki poziom stężenia PO43- i N-NH4+ w wodach oraz sukcesja roślinności wodnej świadczą o zaawansowanym procesie eutrofizacji szczególnie oczek nr 2, 3 i 4. Bardzo duże stężenie ortofosforanów(V) w wodach oczka nr 2, położonego przy zabudowaniach dawnego PGR-u, można uznać za hipertroficzne. W wodach tych stwierdzono też największy deficyt tlenowy.
Źródło:
Journal of Elementology; 2010, 15, 1; 53-63
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Alien Sinanodonta woodiana (Lea, 1834) and protected Anodonta cygnea (Linnaeus, 1758) (Bivalvia: Unionidae) in the Spytkowice pond complex
Autorzy:
Najberek, K.
Strzalka, M.
Solarz, W.
Powiązania:
https://bibliotekanauki.pl/articles/84697.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Mikołaja Kopernika. Wydział Biologii i Ochrony Środowiska. Stowarzyszenie Malakologów Polskich
Tematy:
alien species
Sinanodonta woodiana
protected species
Anodonta cygnea
Bivalvia
Unionidae
Spytkowice pond complex
pond
biological invasion
endangered species
fish pond
mussel
Chinese mussel
swan mussel
Opis:
Dead individuals of Chinese mussel Sinanodonta woodiana (Lea) were found in 2009 in the complex of fishponds in Spytkowice (S. Poland) in the Vistula River valley. Earlier records of this invasive alien species in Poland come mostly from heated waters. Its occurrence in fishponds indicates that it tolerates also colder waters; many aquatic ecosystems in Poland may be threatened with its invasion. Endangered swan mussel Anodonta cygnea (Linnaues) was found in the same fishponds. The species had not been reported from his area before and it is uncertain whether persistence of its population here is threatened by the invasion of Chinese mussel.
Źródło:
Folia Malacologica; 2011, 19, 1
1506-7629
Pojawia się w:
Folia Malacologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fertility Differences between Silvofishery Pond and Conventional Pond in Legonkulon, Subang District, Indonesia
Autorzy:
Sahidin, Asep
Zahidah, Zahidah
Kurniawati, Nia
Herawati, Heti
Rizal, Achmad
Powiązania:
https://bibliotekanauki.pl/articles/1075743.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Fertility
Makrozoobentos
Plankton
Pond
Silvofishery
Subang District
Opis:
This study was conducted to determine the fertility difference between silvofishery pond and conventional pond in Legonkulon, Subang, West Java. Sampling methods was used by collecting samples four times in the composite from five sampling points at six stations (three stations at silvofishery ponds and three stations at conventional ponds). The data were analyzed with comparative descriptive method. The results showed that average abundance of phytoplankton in the silvofishery pond is higher (1935 ind/l) than in the conventional pond (494 ind/l). Average abundance of zooplankton in the silvofishery pond found lower (383 individuals/L) than conventional pond (963 ind/l). Makrozoobenthos average abundance is not significantly different between silvofishery pond and conventional pond with average abundance of each 1162 and 1306 individuals/m2 respectively. Silvofishery pond with a composition of 20% mangrove and 80% ponds increased fertility of plankton and makrozoobenthos.
Źródło:
World Scientific News; 2019, 118; 115-128
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Volume estimation of lakes and reservoirs based on aquatic drone surveys: The case study of Tuscany, Italy
Autorzy:
Giambastiani, Yamuna
Giusti, Riccardo
Cecchi, Stefano
Palomba, Francesca
Manetti, Francesco
Romanelli, Stefano
Bottai, Lorenzo
Powiązania:
https://bibliotekanauki.pl/articles/292923.pdf
Data publikacji:
2020
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
deeper sonar
lake
pond
reservoir
volume model
Opis:
Following flood events and cloudbursts alternating with long drought periods, interest grew in the reservoirs, lakes and water basins in the Tuscany region. In-depth studies are needed to understand the role of water bodies in territorial resilience to climate change. Water volume is the main information to be collected to quantify and monitor their capacity. In this study, a methodology was developed for the estimation of water volume, based on depth measurements taken by sensors with low detection time and costs that can quantify the resource on a regional scale. The depth measuring instrument was a portable sounder with 95 satellite positioning system (Deeper Smart Sonar PRO + (WI-FI + GPS). 204 water bodies were measured. The results indicate that depth is a fundamental parameter to be detected in the field, to obtain the volume with automatic and precise tools. The calculated volume correlates well with the real volume with an R2 = 0.94. Elaboration of the results led to a model being developed to estimate the volume, knowing only the lake surface area. The database created can be used to conduct future studies on the dynamics of water resources in relation to climate change. It will also be possible to make comparisons with data obtained from satellite and LiDAR (light detection and ranging) surveys.
Źródło:
Journal of Water and Land Development; 2020, 46; 84-96
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hydrographic characteristic of ponds distribution in Ukraine – Basin and regional features
Autorzy:
Khilchevskyi, Valentyn
Grebin, Vasyl
Zabokrytska, Myroslava
Zhovnir, Viktoria
Bolbot, Hanna
Plichko, Liudmyla
Powiązania:
https://bibliotekanauki.pl/articles/293352.pdf
Data publikacji:
2020
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
pond
river basin district
river regulation
Ukraine
Opis:
The purpose of the research is to establish the total number of ponds in Ukraine and to analyse the territorial distribution in the administrative areas, as well as in the river basin districts, as the main hydrographic units of water management. Cadastral data of the State Agency of Water Resources of Ukraine regional offices as of 2019 was used in the research (as to Crimea, Donetsk and Luhansk regions we applied the data as of 2014). According the researches there are 50,793 ponds in Ukraine with a total water table area of 2,92899 ha and the volume of 3,969.4 mln m3 of water in 2019. The quantitative distribution of ponds across Ukraine is unequal. Most of them are concentrated in the central part of the country (10.5% of the total number of ponds in the country are in Vinnytsia region). Least of them are in Luhansk region (0.7%). Almost half of the ponds are located in the Dnieper River Basin (48.5%). The lowest quantity of ponds is in the Black Sea Basin (1.2%). The regulation of river basins districts (the rivers of the Sea of Azov, Crimea and Black Sea Basins) reaches 0.71–0.77. As of 2019, 28% of the ponds are rented out. In order to identify the real status of the ponds (both quantitative and qualitative), their recreational role, the environmental impact and the regulation of the hydrographic network in Ukraine, it is necessary to increase the attention to ponds monitoring.
Źródło:
Journal of Water and Land Development; 2020, 46; 140-145
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Implementation of an Integrated Floating Wetland and Biofilter for Water Treatment in Nile Tilapia Aquaculture
Autorzy:
Somprasert, Somanas
Mungkung, Sattaya
Kreetachat, Nathiya
Imman, Saksit
Homklin, Supreeda
Powiązania:
https://bibliotekanauki.pl/articles/1955489.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
aquaculture
biofilter
fish pond water
floating wetland
Opis:
Due to the high nutrient and organic matter contents of fish pond water, the water must be treated before disposal to prevent the eutrophication and deterioration of natural receiving waters. Floating wetlands (FTWs) and biofilters are environmentally friendly ecological treatments that can be used for this water. Thus, this study aimed to investigate the performance of FTWs with biofilters (FTW/Bs) for nutrient and organic compound removal. Two FTW/ Bs were applied in a pond with 5,000 Nile tilapia. The macrophyte species in the FTWs were Cyperus (Cyperus spp.) and Heliconia (Heliconia spp.). The buoyant mats of the FTWs were made from bamboo, and 200 bioballs were loaded below the mats. The water quality parameters in the pond were monitored for 5 weeks between the control test without the FTW/Bs and the experimental test with FTW/Bs at sites 1 (S1) to 8 (S8). The FTW/Bs were located at sites 2 (S2) and 3 (S3). The results showed reductions in all water quality parameters except orthophosphate (ortho-P) at S2 and S3. The COD, BOD, NH4-N, and SS at S2 and S3 parameters during the experimental test were significantly lower than those during the control test, in the ranges of 20.34–33.96, 25.47–29.41, 25.86–27.87, and 26.00–28.44%, respectively.
Źródło:
Journal of Ecological Engineering; 2021, 22, 8; 146-152
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Efficiency of Aquatic Macrophytes on the Nitrogen and Phosphorous Uptake from Pond Effluents in Different Seasons
Autorzy:
Kalengo, Lilian
Ge, Hailong
Liu, Nannan
Wang, Zhijian
Powiązania:
https://bibliotekanauki.pl/articles/1955528.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
biomass
nutrients
phytoremediation
pond effluent
seasonal variation
Opis:
The present study investigated the efficiency of four aquatic macrophytes: Lemna spp, Pistia stratiotes, Ipomoea aquatica and Eichhornia crassipes on nitrogen and phosphorous utilization from aquacultural effluents concerning seasonal changes and biomass production. These nutrients in excess affect fish health and cause eutrophication in water bodies, hence affecting the ecosystem. Aquatic macrophytes were planted in tanks filled with the effluents from carp pond and other tanks were left without plants, serving as control/algal treatment. The water samples were collected weekly for analysis of total nitrogen (TN), ammonia-nitrogen (NH3-N), nitrate-nitrogen (NO3-N), total phosphorus (TP) and ortho-phosphate (ortho-P). The results show that average water temperature raised from 12.2 ± 0.21 °C in winter to 32.0 ± 0.4 °C in summer with no significant difference (p>0.05) between treatments whereas pH was neutral in winter and slightly alkaline in the other seasons. Seasonal changes had impact on macrophytes biomass accumulation with the highest in spring for Lemna spp (91.3%), followed by P. stratiotes (81%) and in summer, E. crassipes (64%). Autumn and winter had the lowest biomass accumulation and I. aquatica had the lowest values in all seasons. For each season, the nutrients concentration decreased with no significant difference (p>0.05) between treatments. Average NH3-N removal efficiencies were higher during summer and autumn followed by spring and lowest in winter for all treatments. NO3-N and TN decreased significantly from the highest in summer to the lowest in winter in all treatments. The ortho-P removal efficiency was slightly higher than TP and decreased from the highest in spring to the lowest in winter (91.4% to 7.8%, control/algae; 90.3% to 8.4%, E. crassipes; 86.2% to 8.3%, Lemna spp; 82.5% to 10.8%, P. stratiotes). The chlorophyll a concentration was higher in Lemna spp (62.2 μg/L) and control/microalgae treatments (59.3 μg/L) indicating that there was probably microbial community that contributed to nutrient utilization. Aquatic macrophytes, in association with microalgae, were responsible for the nitrogen and phosphorous removal. Seasonal temperature change affects the growth and nutrients uptake of aquatic macrophytes. A decrease in temperature reduces the efficiency of nutrients removal and biomass production. For an effective N and P removal from pond effluents in a given season, selection of a proper aquatic macrophyte must be taken into consideration with regards to a given season.
Źródło:
Journal of Ecological Engineering; 2021, 22, 8; 75-85
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Composition of ichthyofauna of small midfield ponds in relation to their environmental conditions and the possibility of angling exploitation
Autorzy:
Brysiewicz, A.
Wesołowski, P.
Powiązania:
https://bibliotekanauki.pl/articles/101632.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
pond
ichthyofauna
biodiversity
dominance index
constancy index
Opis:
One of the most intriguing and still rather mysterious water ecosystems are small mid-field ponds. Relatively little attention is devoted to representatives of ichthyofauna inhabiting them. The purpose of this work was the evaluation of the species and quantitative composition of the fish inhabiting several selected mid-field ponds (five), and the analysis of habitat conditions and the possibility of utilising small countryside ponds for angling purposes. Overall, 203 fish belonging to eight species were caught. The highest number was recorded in the pond No. 5 (84 specimens), and the lowest number was recorded in the pond No. 3 (18 specimens), where all the fish belonged to one species - Carassius auratus gibelio. No fish habitation was detected in the pond No. 1. The highest dominance index (Di) was achieved by Perca fluviatilis (33.5%) and Carassius carassius (17.73%), whereas the lowest index belonged to Scardinius erythrophtalmus (2.46%) and Blicca bjoerkna (5.42%). The comparison of constancy index values (Ci) indicates that as many as six fish species out of eight demonstrated high constancy of 60%, whereas two fish species (Blicca bjoerkna and Scardinius erythrophtalmus) reached a low level of constancy amounting to 20%. The studied ponds predominantly featured good or very good conditions for angling. In 2012, the presence of 28 anglers was noted witth regard to the studied ponds, therefore, it can be stipulated that small mid-field ponds contribute to the development of angling in Poland.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2016, IV/3; 1569-1580
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 113

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