Wyniki wyszukiwania - Biblioteka Nauki

1

Development and growth of Temora longicornis: numerical simulations using laboratory culture data

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Dzierzbicka-Głowacka L. , Lemieszek A. , Żmijewska I. M.

Oceanologia

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2011

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tom No. 53 (1)

137-161

EN

Quantitative expressions are presented to describe the effects of temperature and food concentration on stage duration and growth rate of Temora longicornis for each of the model stage groups (N1-N6 - naupliar stages, C1, C2, C3, C4, C5 - the five copepodid stages). The calculations were made on the basis of experimental data from the literature for Temora longicornis from the south-eastern and the southern North Sea. Relationships were obtained between the growth parameters and temperature for the 5-10°C temperature range and food concentrations from 25 mgC m-3 to excess. Also computed was the total mean development time as a function of the above-mentioned parameters, temperature and food availability. The simulations computed here are similar to the experimental results. The growth rates for successive stages were obtained according to the correction of the "Moult Rate" method, which allows the use of mean weights and stage durations. The calculations also suggest that three complete generations of T. longicornis from the Gdańsk Deep (the southern Baltic Sea) can develop during a single year.

2

Growth rate of Pseudocalanus spp. as a function of food concentration, body weight and temperature

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Dzierzbicka-Głowacka L. , Zieliński A.

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tom Vol. 32, No. 4

171-197

EN

This paper does not report the results of original research; it is an analysis of data from the literature. The aim of this project was to develop quantitative expressions to describe the effects of food concentration, temperature and body weight on the growth rate of copepodid stages of Pseudocalanus spp. Calculations were done for two geographically separate populations of Pseudocalanus – one from Puget Sound (Washington, USA) and the other from the southern North Sea- based on experimental data from the literature (see Vidal 1980, Thompson 1982). The relationships between the growth rate of Pseudocalanus from Puget Sound and temperatures in the range of 8o-15.5oC, food concentration and body weights ranging from 1.5 to 10 ěgd.w. (case 1) and 0.51 to 3.7 ěgC (case 2) were determined, as were those for Pseudocalanus from the southern North Sea at a high food concentration and at temperatures ranging from 4o to 15oC. The results demonstrate that the maximum growth rate decreased as temperature fell and that it become less dependent on temperature at higher body weights. The critical food concentration for growth increased with body size proportionally more at high than at low temperatures. Slight differences in growth rate were also detected between the two species of Pseudocalanus.

3

The situation on the credit market versus the rate of economic growth in chosen countries of East-Central Europe

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Mikołajczak P. , Skikiewicz R.

Ekonomia i Zarzadzanie

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2016

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tom 8

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nr 1

62-70

EN

The article concerns the comparative analysis concerning credit market situation on the background of economic growth changes in Poland, the Czech Republic, Lithuania and Hungary. The main objective of this article is to identify the similarities and differences in the economic situation of the whole economies and credits market conditions in individual countries. This relationship has been verified for each country. To determine the strength of the relationship between the dynamics of changes in the value of credits and GDP, Pearson correlation analysis was used. The basis of the analysis presented in the article was data from central banks, Central Statistical Office and Eurostat. Time horizon under investigation covered the period of 2004-2013. The results of analysis indicate that both the economic condition of entire economies, as well as the situation in the credit market remained diverse in all analyzed countries. Among the most significant similarities there was found that changes in the rate of economic growth in the analyzed countries remained at a moderate depending on the dynamics of changes in the credit market. Although the analyzed countries experienced a financial crisis, not all of them recorded a negative growth rate of GDP and credits.

4

Postnatale Entwicklung weiblicher und mannlicher Jungrinder

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Panicke L. , Matthes H. D.

Zeszyty Naukowe Akademii Rolniczej we Wrocławiu. Konferencje

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1996

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tom 12

5

The effect of infestation with Diplostomum spp. on growth rate of Siberian sturgeon fry, Acipenser baeri Brandt

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Kolman R. , Kolman H. , Dzika E.

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tom 44

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nr 3

6

Effects of warmness and spatial nonuniformity of plasma waveguide on periodic absolute parametric instability

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Zaki N. G. , Bekheit A. H.

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tom Vol. 56, No. 4

305-309

EN

The periodic absolute parametric instability (API) of the low-frequency oscillations excited by a monochromatic pumping field of an arbitrary amplitude in a warm 1-D (one-dimensional) nonuniform magnetoactive plasma is investigated. The separation method can be used for solving the two-fluid plasma equations describing the system. By applying this method we were able to determine the frequencies and growth rates of unstable modes and the self-consistent electric field. Plasma electrons are considered to have a thermal velocity. Different solutions for the spatial equation can be obtained the following cases: A) API in a uniform plasma, B) API in a nonuniform plasma. The latter has been studied here for two cases: B.1) the exact harmonic oscillator and B.2) the bounded harmonic oscillator (a bounded plasma). An increment has been found in the build-up of the oscillations, and it has been shown that the spatial nonuniformity of the plasma exerts the stabilizing effect on the parametric instability. A reduced growth rate of API in the warm plasma, in comparison to the cold plasma, is reported. It has also been found that the warmness of the plasma has no effect on the solution of the space part of the problem (only through the separation constant).

7

The growth performance of selected spice crops in Haryana state

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Lal C. , Kait R.

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nr 3

8

Application of a Logistic Function to Describe the Growth of Fodder Galega

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Rymuza K. , Bombik A.

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tom Vol. 18, nr 1

125--131

EN

It was attempted in the paper to describe the growth of oriental goat’s rue (Galega orientalis Lam.) growth by means of a logistic function. The studies demonstrated that the function describes empirical data well as the coefficients of determination obtained ranged between 97 to 98%, depending on the growing season. The estimated function parameters indicate that both the plant height and growth rate were conditioned by thermal conditions and moisture during the growing season. Plants had the longest stems in the year 2010 (127.9 cm), and the shortest in 2008 (105.9 cm). The maximum growth rate ranged from 2.12 to 3.97 cm per day in, respectively, 2009 and 2008. Also the inflection point, the point at which plants grew the fastest, depended on the conditions of the growing season.

9

The growth rate and condition of asp Aspius aspius [L., 1758] from Miedzyodrze waters

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Kompowski A. , Neja Z.

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nr 3

10

Allometric growth of the alimentary tract in the Siberian hamster (Phodopus sungorus)

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Wolczuk K. , Pawlak R.

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nr 1

11

Assessment of inorganic nitrogen and phosphorus compounds removal efficiency from different types of wastewater using microalgae cultures

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Nezbrytska I. , Shamanskyi S. , Pavliukh L. , Kharchenko G.

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2022

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tom Vol. 51, No. 1

45--52

EN

The efficiency of ammonium nitrogen (N-NH4+) and phosphate (P-PO43-) removal from wastewater with different loads of these nutrients was evaluated using Chlamydomonas reinhardtii (Сhlоrорhуtа) and Oscillatoria neglecta (Суаnорhуtа/Cyanoprokaryota). In addition, functional characteristics of the microalgae under the studied conditions were determined. It was demonstrated that Ch. reinhardtii is resistant to a wide range of concentrations of inorganic nitrogen and phosphorus compounds. Microalgae actively participate in the removal of N-NH4+ from wastewater (removal efficiency of 49–63%, depending on the initial concentration). At the same time, Ch. reinhardtii showed low levels of P-PO43- removal (7-18%) from the aquatic environment. O. neglecta, unlike Ch. reinhardtii, is sensitive to excessively high concentrations of N-NH4+ (90-140 mg l−1) and P-PO43- (26-90 mg l−1). However, it is characterized by high removal efficiency for both forms of nitrogen (60–61%) and phosphorus (43–55%) at their initial concentrations of 30–50 mg l-1 and 7–14 mg l-1, respectively. Therefore, O. neglecta is best suited for use in wastewater post-treatment

12

Physiological adaptation of starved Tetrahymena pyriformis GL to colistin

75%

Szablewski L.

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nr 1

13

U-Th ages and facies properties of Edremit travertines and tufas, Van, Eastern Anatolia : implications for the neotectonics of the region

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Yeşilova Ç. , Güngör Yeşilova P. , Açlan M. , Yu T.-L. , Shen C.-C.

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tom Vol. 65, No. 2

art. no. 28

EN

Travertine formation is one of the most important archives of active tectonics in a region and provides information about climate, water temperature and quantity, and biological activity. The Edremit travertines and tufas extend over nearly 160 km2 within the boundaries of the Edremit area to the east of Lake Van (eastern Turkey), and yield important evidence towards understanding the neotectonics of the region. The Edremit travertines and tufas were studied throughout their full stratigraphic extent, the factors controlling the formation of these deposits were examined, and the succession was sampled for U/Th analysis. Travertine formation was found to occur from 542-29.7 ka, with two different tufa formation periods: from 29.7-5.8 ka and 5.8-2.08 ka. Pauses in travertine formation (palaeosols) were identified from 510-470 ka, 289-269 ka and 91-34 ka. Our study showed that climate parameters affected the formation of tufa, while the Edremit travertines developed under the control of tectonism. The Van Fault is directly associated with travertine development and its age was identified as 542 ka or older. Since the Gürpιnar Fault, one of the most important faults in the region, is effective in shaping the southern slope of the travertines and limiting the movement of the Van Fault, its age should be younger than 542.4 ka. The Elmalιk Fault played an active role in the formation of the Edremit tufas and is proposed to be 29.7 ka in age, from stratigraphic relationships in the region.

14

First data of age, condition, growth rate and diet of invasive Neogobius melanostomus (Pallas, 1814) in the Pomeranian Bay, Poland

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Rybczyk A. , Czerniejewski P. , Keszka S. , Janowicz M. , Brysiewicz A. , Wawrzyniak W.

Journal of Water and Land Development

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2020

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tom no. 47

142--149

EN

Round goby (Neogobius melanostomus (Pallas, 1814)) is an invasive species in the Oder River. In this study, age of 147 fish was determined using scales and otoliths, and the Fraser-Lee back-calculation method was used for population structure and theoretical length growth rates with 3 mathematical models of growth: von Bertalanffy, Ford–Walford and 2nd degree polynomial. Fish condition was determined using Fulton, Le Cren and Clark equations. Average total length and weight of fish was 162.00 mm and 83.00 g, respectively. Males were more abundant than females, representing 70% of the fish caught, and achieved greater total lengths and weights. Age 2+ dominated females and 3+ males age groups. Of the three mathematical models used to estimate fish growth, the 2nd degree polynomial model had the best fit to back-calculated lengths. Males had slightly higher growth rates than females in the first two years of life but comparable in subsequent years. The diet consisted of various benthic organisms that varied with fish age. The most frequently occurring food component was Dreissena polymorpha, which accounted for approximately 70% in the diet of fish with a body length greater than 191 mm.

15

Growth rate and carcass quality of hybrid fatteners depending on the age of slaughter

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Jankowiak H. , Cebulska A. , Novotni-Danko G. , Balogh P. , Zmudzinska A.

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tom 22

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nr 1

16

First data of age, condition, growth rate and diet of invasive Neogobius melanostomus (Pallas, 1814) in the Pomeranian Bay, Poland

75%

Rybczyk A. , Czerniejewski P. , Keszka S. , Janowicz M. , Brysiewicz A. , Wawrzyniak W. , Rybczyk A. , Czerniejewski P. , Keszka S. , Janowicz M. , Brysiewicz A. , Wawrzyniak W.

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nr 47

17

Rate of growth of porkers and selected fattening and slaughter traits and meat quality

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Czyzak-Runowska G. , Lyczynski A. , Pospiech E. , Rzosinska E. , Kocwin-Podsiadla M.

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nr 2

18

Growth rate modulation enables coexistence in a competitive exclusion scenario between microbial eukaryotes

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Ribeiro G. M. , Prado P. I. , Coutinho R. M. , Rillo M. C. , Pereira jr. S. , Poreirio-Sousa A. L. , Lahr D. J. G.

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nr 4

19

Annual, seasonal and spatial differences in the growth rate of Baltic cod larvae and early juveniles in relation to zooplankton biomass fluctuations in 2006-2014

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Spich K. , Fey D. P.

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tom Vol. 52, No. 4

399--419

EN

It is an acknowledged theory that a faster growth rate, determined by various environmental drivers, may boost the survival of larval and juvenile fish. In this study we examined the differences in the growth rate of larval and juvenile cod (age 2 – 136 d; SL: 4.1 – 39.2 mm) between the years 2006 and 2014, sub-areas of the Baltic Sea (Bornholm Basin, BB; Słupsk Furrow, SF; Gdansk Basin, GB), and seasons (spring and summer). The average growth rate for all specimens was 0.25 mm/d, with significantly lower values between 2012 and 2014 than between 2006 and 2011. A reduction in zooplankton biomass, especially the large zooplankton fraction, was observed after the 2006–2008 period, which was related to the prevailing temperature conditions in the surface layers. The reduction in zooplankton biomass was accompanied by changes in the structure of zooplankton: less T. longicornis, C. hamatus, and Pseudocalanus spp., and more Acartia spp. The results suggest that the inter-annual differences observed in zooplankton biomass and structure are likely responsible for the observed reduction in the growth rate of cod larvae between 2012 and 2014 compared to the years between 2006 and 2011. The growth rate reduction could be one of the reasons for the decline in the recruitment of eastern Baltic cod between the years 2013 and 2015, after the high recruitment years of the period 2011-2012.

20

Cultivation Parameters Adjustment for Effective Algal Biomass Production

75%

Karło A. , Wilk A. , Ziembińska-Buczyńska A. , Surmacz-Górska J.

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2015

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tom Tom 17, cz. 1

275--288

PL

Mikroglony są niewielkimi organizmami wodnymi o bardzo dużym potencjale w zakresie oczyszczania ścieków. Ma to związek z faktem, że są mało wymagające w hodowli, a do wzrostu i rozmnażania mogą z powodzeniem wykorzystywać związki biogenne zawarte w ściekach. Dodatkowo, powstająca biomasa może posłużyć jako substrat energetyczny – może zostać wykorzystana do produkcji biopaliw, takich jak biodiesel, bioetanol czy biobutanol lub jako wsad do komory fermentacji, czyli do produkcji biogazu. Ze względu na rosnące zainteresowanie pozyskiwaniem znacznych ilości biomasy glonów podjęto próbę zoptymalizowania warunków hodowlanych pozwalających na pozyskanie największej ilości surowca przetwórczego. W eksperymencie przeprowadzono w warunkach laboratoryjnych serię analiz w zawiesinie, w których jako medium wzrostowe dla mikroglonów z rodzaju Chlorella wykorzystano wody z odwadniania przefermentowanych osadów ściekowych, pochodzące z Centralnej Oczyszczalni Ścieków w Gliwicach. Wody osadowe charakteryzują się wysokim stężeniem azotu nieorganicznego w postaci jonów amonowych, które z powodzeniem wykorzystywane są przez mikroglony do wzrostu. Dodatkowo ścieki takie, w porównaniu z surowymi ściekami komunalnymi, są relatywnie klarowne, dzięki czemu możliwe jest przenikanie światła w głąb medium hodowlanego. W przeprowadzonym eksperymencie wody osadowe w pierwszym etapie poddane zostały podczyszczaniu w reaktorze typu SBR, a następnie skierowane jako dopływ do reaktora glonowego. Celem badań było określenie wpływu podstawowych czynników środowiskowych na tempo wzrostu glonów, a tym samym na przyrost biomasy. W pierwszym teście analizowano wpływ gęstości optycznej hodowli na szybkość przyrostu biomasy. Zawiesinę glonów jednokomórkowych rozcieńczano medium wzrostowym odpowiednio w stosunku 1:5, 2:5, 3:5 oraz 4:5 w odniesieniu do hodowli kontrolnych. Uzyskane wyniki pozwoliły określić optymalną gęstość zawiesiny mikroglonów w reaktorze (odpowiadającą największym przyrostom biomasy, a tym samym wysokiemu usunięciu związków biogennych). Początkowe stężenie zawiesiny mikroglonów na poziomie 0,045–0,067 g/l odpowiadało największym przyrostom biomasy w próbach (tempo wzrostu odpowiednio 0,348 i 0,361 1/dzień). W drugiej serii testów analizowano dodatkowo wpływ takich czynników jak: stosunek N:P, dodatek węglanów jako źródła dwutlenku węgla oraz dodatkowe oświetlanie promieniowaniem aktywnym fotosyntetycznie (falą świetlną o długości w zakresie absorpcji chlorofilu a oraz b), w odniesieniu do próby kontrolnej, a także do uzyskanej wcześniej optymalnej gęstości zawiesiny mikroglonów. W eksperymencie wykazano również, że wody osadowe, charakteryzujące się wysokim ładunkiem nieorganicznych związków azotu i fosforu, a także obecnością metali ciężkich mogą być z powodzeniem wykorzystywane jako medium wzrostowe dla glonów z rodzaju Chlorella.