Wyniki wyszukiwania - Biblioteka Nauki

1

Structure of Plankton Communities in Cijulang River Pangandaran District, West Java Province, Indonesia

100%

Sahidin A. , Nurruhwati I. , Riyantini I. , Triandi M.

World News of Natural Sciences

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2019

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tom 23

128-141

EN

A river is a water ecosystem that plays an important role in the hydrological cycle and functions as a catchment area for the surrounding area. One of the organisms inhabiting river waters is plankton. The purpose of this study was to determine and analyze the structure of the plankton community in the waters of the Cijulang River and to study the relationship between plankton abundance, as well as some physical-chemical parameters of the water. The study was conducted in January, February, and March 2018 on the Cijulang River, at 5 (five) stations with a purposive sampling method. Accordingly, 17 genera were found, from 7 phytoplankton classes consisting of 6 Bacillariophyceae genera, 1 Clorophyceae genera, 2 Cyanophyceae genera, 3 Zygnematophyceae genera, 2 Desmidiaceae genera, 1 Synurophyceae genera, and 2 Fragillariophyceae genera. Also found were 10 genera from 5 classes of zooplankton consisting of 4 genera Maxillopoda, 2 genera Branchiopoda, 1 genera Gastropoda on veliger fase, 1 genera Ostracoda, and 2 genera Copepoda. The abundance of phytoplankton obtained ranges from 11-57 cells / L, while the zooplankton ranges from 8 – 40 ind/L. The diversity index (H ') = 1.397 - 2.275 and dominance index (D) = 0.022 - 0.294. Physical-chemical parameters of the waters, respectively, were 22 °C - 31 °C, light intensity 47.5 cm - 254 cm, salinity 0 ppt - 20 ppt, and dissolved oxygen 6.2 mg / L - 13.4 mg / L. Ammonia concentration 0.03 - 0.08 mg / L. All stations had a phosphate value of less than 0.16 mg / L and a silicate concentration of 0.01 - 0.0581 mg / L.

2

Analysis of Water Quality and Carrying Capacity Based on Plankton and Benthos Bioindicators in Cibuni River, Cianjur District, West Java Province, Indonesia

100%

Rizal A. , Apriliani I. M. , Herawati H.

World Scientific News

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2022

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tom 173

14-26

EN

The purpose of this study was to determine the quality and carrying capacity of the waters of the Cibuni River, Cianjur District, based on plankton and benthic bioindicators, on May 15, 2022. This field research is conducted with a survey design at several river points. The stations used in this study consisted of 6 stations. The tools and materials used in this study were a thermometer, pH meter, DO meter, secchi disc, plankton net, net surber, sample bottles, sample plastic, lugol, 4% formalin, microscope, benthic filter, and benthic plankton identification directory. Observation parameters include species composition, density, diversity index, and species dominance. Parameters of Physico-chemical factors include temperature, pH, brightness, and dissolved oxygen. The results showed that the quality and carrying capacity of the waters of the Cibuni river in plankton and benthic bioindicators were not moderately polluted.

3

Chaetognatha of Drake Passage and Bransfield Straitv(December 1983-January 1984, BIOMASS-SIBEX)

100%

Bielecka L. , Żmijewska M. I. , Bielecka L. , Żmijewska M. I.

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tom 14

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nr 1

4

Mechanizmy obrony przed drapieznictwem u zwierzat planktonowych - co nowego po latach?

100%

Pijanowska J.

Wiadomości Ekologiczne

|

1998

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tom 44

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nr 4

305-327

5

The influence of emergent and submerged macrophyte beds on ciliate communities in a shallow lake

100%

Mieczan T.

Oceanological and Hydrobiological Studies

|

2010

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tom Vol. 39, No.4

107-115

EN

Relationships between ciliates and the presence of emergent and submerged vegetation were studied in a shallow lake in eastern Poland. Samples were collected in zones of Phragmites, Typha, Batrachium, Elodea, Stratiotes and from the open water zone. The abundance and biomass of ciliates were significantly higher at sites with structurally most complex plants than in the open water or sparsely vegetated sites. The redundancy analysis indicated that bacterial abundance and total organic carbon were the most influential variables that determine the distribution of ciliates. However, chlorophyll a and Ptot have a lesser influence on the distribution of these microorganisms. Based on differences in macrophyte structure, two groups of habitats with similar patterns of size-related ciliate distribution were distinguished. The first group consisted of three vegetation zones of sparse stem structure and the open water zone, the second group comprised submerged macrophyte species, which were more complex.

6

A new predatory cladoceran Cercopagis (Cercopagis) pengoi (Ostroumov 1891) in the Gulf of Gdańsk

100%

Bielecka L. , Żmijewska M. I. , Szymborska A.

Oceanologia

|

2000

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tom No. 42 (3)

371-374

EN

Cercopagis pengoi, a species native to the Ponto-Caspian area, was recorded for the first time in the Baltic Sea in the Gulf of Riga and in the open Gulf of Finland in 1992. Sampling in the shallow coastal area of the western part of the Gulf of Gdansk at weekly intervals between April 1999 and April 2000 revealed the presence of C. pengoi in the zooplankton community. The species was recorded twice, at densities of 1369 indiv. m-3 on 30 July 1999 and 421 indiv. m-3 on 5 August 1999, when the water temperature was at its maximum, in excess of 21.7C and 23.9C respectively. C. pengoi had never been recorded in the Gulf of Gdansk prior to 1999.

7

Abundance and species composition of plankton in the Gulf of Gdansk near the planned underwater outfall of the Gdansk-Wschod (Gdansk-East) sewage treatment plant

100%

Żmijewska M. I. , Niemkiewicz E. , Bielecka L.

Oceanologia

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2000

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tom No. 42 (3)

335-357

EN

The aim of this paper is to determine the current biological state of life in the pelagic zone of the Gulf of Gdansk in relation to the planned start-up of an underwater outfall which will discharge sewage from the Gdansk-Wschod (Gdansk-East) sewage treatment plant. The plankton material was collected during two research cruises in July and October 1998. The samples were taken at 15 stations in four profiles located near Wyspa Sobieszewska (Sobieszewo Island), perpendicular to the coastline. Both the taxonomic and numerical structure of phytoplankton and zooplankton were typical of the coastal area of the Gulf of Gdansk. The species diversity depends on hydrological conditions, mainly input from the River Wisla (Vistula). The abundance and biomass of phytoplankton in 1998 were several times lower than in 1994 and 1995 in the area off Gorki Wschodnie, the profile located closest to the planned construction site. This could have been caused by generally lower temperatures in 1998 in comparison to previous years. In the investigated area only traces of algal eutrophication indicator species were noted. However, potentially toxic species were confirmed and were most abundant near the Wisla mouth. The highest concentrations of pelagic fauna occur in the shallowest area closest to the shoreline. Long-term observations of the dynamics of the variations in abundance and species composition indicate the increasing significance of one particular species - Acartia bifilosa.

8

Decadal fluctuations in North Atlantic water inflow in the North Sea between 1958-2003: impacts on temperature and phytoplankton populations

100%

Leterme S. C. , Pingree R. D. , Skogen M. D. , Seuront L. , Reid P. C. , Attrill M. J.

Oceanologia

|

2008

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tom No. 50 (1)

59-72

EN

The circulation of Atlantic water along the European continental slope, in particular the inflow into the North Sea, influences North Sea water characteristics with consequent changes in the environment affecting plankton community dynamics. The long-term effect of fluctuating oceanographic conditions on the North Sea pelagic ecosystem is assessed. It is shown that (i) there are similar regime shifts in the inflow through the northern North Sea and in Sea Surface Temperature, (ii) long-term phytoplankton trends are influenced by the inflow only in some North Sea regions, and (iii) the spatial variability in chemicophysical and biological parameters highlight the influence of smaller scale processes.

9

Plankton wybranych oczek wodnych Puszczy Białowieskiej

89%

Chomutowska H. , Krzyściak-Kosińska R.

Inżynieria Ekologiczna

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2015

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tom Nr 42

1--9

PL

Puszcza Białowieska stanowi miejsce bytowania wielu rzadkich gatunków roślin, zwierząt i grzybów. O jej unikalności świadczy zachowanie ciągłości procesów przyrodniczych na przestrzeni wieków. Urozmaiceniem krajobrazu Puszczy są oczka wodne, które wzbogacają bioróżnorodność terenów i są siedliskiem życia licznych organizmów, zależnych od środowiska wodnego. Bywają ostoją gatunków chronionych roślin i zwierząt. Przeprowadzone badania miały na celu określenie składu gatunkowego i ilościowego organizmów planktonowych oczek wodnych zlokalizowanych w Puszczy. Zróżnicowanie gatunkowe planktonu dowiodło niewielkiego zanieczyszczenia substancjami organicznymi: dominacja producentów nad innymi organizmami, świadczy o wysokim stopniu zmineralizowania. Oczka wodne powinny podlegać stałemu monitoringowi; wzbogacają bioróżnorodność krajobrazu Puszczy Białowieskiej, są miejscem bytowania wielu gatunków organizmów charakterystycznych dla bagien i małych źródeł wody.

EN

Białowieza Forest is the natural habitat of many rare species of green plants, animals and fungi. For centuries, it has been a unique place for developing environmental processes. The water ponds are the wildlife habitat for many organisms, whose lives depend on aquatic environments. Protected species of green plants and animals also live in the water ponds. The aim of this research was to determine the species and quantity of plankton which are present in Białowieza Forest’s water ponds. The presence of different species of plankton proved the presence of minimal organic pollution. It was noticed that the primary producers dominated over the other organisms, which confirmed high mineralisation. The water ponds should continue to be monitored, as they are responsible for biodiversity within the Białowieza Forest area and they are the best place to settle for many species which are characteristic for swamps and small sources of water.

10

Zgrupowanie wrotków (Rotatoria) planktonowych w strefie litoralowej zbiornika Dziećkowice

89%

Penczek K.

Problemy Ekologii

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2005

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tom R. 9, nr 1

28-36

PL

W artykule przedstawiono wyniki badań przeprowadzonych w strefie litoralowej zbiornika Dziećkowice. Celem pracy było: określenie składu gatunkowego Rotatoria badanego zbiornika, opisanie struktury dominacji, stałości oraz znaczenia ekologicznego wrotków występujących w zbiorniku Dziećkowice, prześledzenie zmian ilościowych Rotatoria, porównanie występujących zespołów na badanych stanowiskach, zbadanie wpływu czynników abiotycznych na występowanie i zagęszczenie wrotków, określenie sezonowych zmian występowania Rotatoria, określenie trofii i saprobowości zbiornika na podstawie zebranych zgrupowań.

EN

The article presents the results of a research carrier out in the littoral zone of the Dziećkowice reservoir. The study was aimed at determining the species composition of Rotatoria living in the Dziećkowice reservoir, describing their domination structure and ecological role alongside with investigating the quantitative changes of Rotatoria population, analyzing the impact of abiotic factors on the occurrence and condensation of rotifers, determining the seasonal variability of Rotatoria occurrence and the reservoir's trophy and saprophy based on the collected groupings.

11

Obniżanie trofii wód w systemach kaskadowych, na przykładzie kaskady Soły (Południowa Polska)

89%

Jachniak E. , Jaguś A.

Inżynieria Ekologiczna

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2013

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tom Nr 32

65--73

PL

W pracy podjęto temat samooczyszczania wód w kaskadach zbiorników wodnych. Przedstawiono wyniki badań hydrobiologicznych trzech zbiorników zaporowych (Tresna, Porąbka i Czaniec), tworzących kaskadę rzeki Soły. Określono status troficzny zbiorników na podstawie stężenia chlorofilu, wielkości biomasy fitoplanktonu i występowania wskaźnikowych gatunków glonów planktonowych. Wyniki badań wskazały na obniżanie trofii wód w układzie od najwyższego do najniższego zbiornika kaskady. Średnie stężenia chlorofilu wynosiły odpowiednio 19,99 μg∙dm-3, 8,74 μg∙dm-3 oraz 4,29 μg∙dm-3, natomiast średnia wielkość biomasy 4,1 mg∙dm-3, 3,4 mg∙dm-3 i 0,1 mg∙dm-3. Obserwowane gatunki glonów planktonowych potwierdziły istnienie różnic między zbiornikami. W Tresnej rozwijało się więcej gatunków wskazujących na eutrofię, zaś w Porąbce oraz Czańcu rozwijały się gatunki występujące w wodach oligomezotroficznych. Samooczyszczanie wód w kaskadzie Soły, wyrażone obniżaniem ich żyzności, jest ważne dla gospodarki wodnej regionu, gdyż zbiornik Czaniec pełni funkcję zbiornika wodociągowego.

EN

In this thesis the subject of water self-purification in cascade systems of water reservoirs was engaged. The results of hydrobiological research of three dam reservoirs (Tresna, Porąbka and Czaniec), creating the Soła river dam cascade were presented. The trophic status of these reservoirs was defined on the grounds of the concentration of chlorophyll a, biomass of phytoplankton and occurrence of indicating species of planktonic algae. The results of research indicated on decreasing of water trophy in the layout from the highest into the lowest reservoir of the cascade. The average concentrations of chlorophyll a amounted appropriately 19,99 μg∙dm-3, 8,74 μg∙dm -3 and 4,29 μg∙dm-3, instead the average biomass of phytoplankton amounted appropriately 4,1 mg∙dm-3, 3,4 mg∙dm-3 and 0,1 mg∙dm-3. The observed species of algae confirmed occurrence of differences between reservoirs. In Tresna reservoir more species of phytoplankton indicating for eutrophy were thrived, instead in Porąbka and Czaniec reservoirs the species occurring in oligomesotrophic water thrived. Water self-purification in the Soła river dam cascade expressed decreasing of their fertility is important for water management of the region, because the Czaniec reservoir fulfill a function of water-supply reservoir.

12

Recent changes in large and shallow Lake Peipsi (Estonia/Russia) : causes and consequences

89%

Haberman J. , Haldna M. , Laugaste R. , Blank K.

Polish Journal of Ecology

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2010

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tom Vol. 58, nr 4

645-662

EN

The large and shallow lowland lakes constitute a distinctive type of lake ecosystem, because of their polymixis, frequent resuspension of bottom sediments and internal nutrient loading, high turbidity and usually high productivity and eutrophication rate. Lake Peipsi is one of the largest lake in Europe, its area is 3555 km2 and mean depth is 7.1 m. The study results for the vegetation seasons (May-October) obtained for the decade 1997-2008 allow to evaluate the long-term changes in the functioning of its ecosystem in terms of dynamics of phyto- and zooplankton and nutrient content in a lake. Lake Peipsi consists of three different parts: the northern, the largest and deepest one is eutrophic L. Peipsi s.s. (sensu stricto), the southernmost part is hypertrophic L. Pihkva, connected with L. Peipsi s.s. by the river-like L. Lammijarv. The decrease in nutrient loading to L. Peipsi observed in the early 1990s was brought about by social changes (collapse of Soviet type agriculture) rather than by the purification of point-pollution sources. In the northern part, Lake Peipsi s.s., the content of both nitrogen and phosphorus was stabilized, while the increase in phosphorus in the water of L. Pihkva was evident. The resistance of the three lake parts to external nutrient loading is different. It seems that the ecosystem of the southern lake part (L. Pihkva) is losing its resilience. The disturbance of the ecosystem is most likely caused by the fact that the slight trend of re-oligotrophication beginning in the early 1990s was reversed in the mid-1990s due to increasing P loading. The share of cyanobacteria in phytoplankton biomass increased from 20% to 60% in L. Peipsi s.s., and from 30% to 90% in the southern parts of the lake in the summer months. The lake was characterized by massive cyanobacterial blooms. Potentially toxic genera (Microcystis, Aphanizomenon, Anabaena, Gloeotrichia) dominated, and the quantity of microcystins in the lake was relatively large. The biomass of phytoplankton increased whereas that of all zooplankton groups - cladocerans, copepods and rotifers - decreased. The most essential decline affected rotifers: their abundance was about 60% lower in 2001-2008 than in the 1990s. The biomass of copepods decreased almost 50% and that of cladocerans 34%. In parallel with changes in plankton, the fish composition of L. Peipsi was characterized by sharp decline of planktivorous smelt (Osmerus eperlanus eperlanus m. spirinchus Pallas) and vendace (Coregonus albula (L). The most likely causes of the changes seem to be mainly the anthropogenic P input, decreasing N:P ratio, cyanobacterial toxins, and changes in ichthyocoenosis. Our data from last decade demonstrate a kind of disturbance in the ecosystem of the lake as compared to the second half of last century. The disturbance of the ecosystem is most likely caused by the fact that the slight trend of re-oligotrophication beginning in the early 1990s was reversed in the mid-199s due to increasing P loading from southern part of lake watershed.

13

Konsumpcja bakterii przez pierwotniaki w ekosystemach wodnych

88%

Koton-Czarnecka M. , Chrost R. J.

Postępy Mikrobiologii

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2001

|

tom 40

|

nr 2

219-240

14

Changes in the structure of planktonic rotifers in some ponds of the Poleski National Park during the years 1997 and 2009

88%

Demetraki-Paleolog A.

Teka Komisji Ochrony i Kształtowania Środowiska Przyrodniczego

|

2013

|

tom 10

15

Predictional model of biocenotic changes in offshore baltic plankton due to temperature increase

88%

Pliński M. , Żmijewska M. I. , Sapota M. , Witek B. , Mudrak S.

Oceanological and Hydrobiological Studies

|

2003

|

tom Vol. 32, No. 3

29-41

EN

Over the last 20 years, more and more reliable data concerning global climate change, mainly climate warming, have become available in the literature. Change such as this has also been documented in the Gulf of Gdańsk. Climate change has an influence on aquatic ecosystems and especially their biocoenoses, and plankton is one of its most sensitive ecological fractions. Positive and negative statistical correlation in the exclusive relationship between the quantity of plankton groups and water temperature has been observed. When time was applied as a factor, only the annual increments of the blue-green algae correlation were statistically significant, and the regression equation calculated in this paper was applied to predict a rise in the population number of this algae in response to increasing temperature. It was not possible to perform this calculation with the other plankton components.

16

Wpływ rozwarstwiania się mieszaniny woda-oleje mineralne na plankton i sanitarną ocenę jakości wody. Cz. I. Badania w warunkach laboratoryjnych

88%

Brzezinski J. , Ranke-Rybicka B.

Roczniki Państwowego Zakładu Higieny

|

1982

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tom 33

|

nr 1-2

17

Co mozna spotkac w wodzie

88%

Wilk-Wozniak E. , Pociecha A.

Aura

|

1998

|

nr 11 dodatek ekologiczny nr 51 dla szkol

5-6

18

Struktura zbiorowisk planktonu w strefie szuwaru Jeziora Jaroslawieckiego

88%

Pelechata A. , Wiescicka I.

Morena

|

2003

|

tom 10

101-118

19

Notes on the Occurrence of Tintinnid Ciliates, and the Nasselarian Radiolarian Amphimelissa setosa of the Marine Microzooplankton, in the Chukchi Sea (Arctic Ocean) Sampled each August from 2011 to 2020

88%

Dolan J. R. , Moon J.-K. , Yang E. J.

Acta Protozoologica

|

2021

|

tom 60

1-11

EN

Here we summarize the results from 10 cruises in the Chukchi Sea, in August, each year from 2011 to 2020. Samples for the qualitative analysis of the microzooplankton were obtained from stations located across the Chukchi Sea using a 20µm plankton net. Conditions encountered, in terms of sea ice coverage and chlorophyll concentrations, varied widely from year to year without any obvious relationship with the composition of the microzooplankton assemblage. Examining a total of 242 samples gathered, we found a total of 44 tintinnid species (morphologically distinct forms). Plotting cumulative number of tintinnid species encountered vs cumulative number of samplings gave a typical species accumulation curve showing no sign of saturation suggesting that continued sampling in the Chukchi Sea will likely yield increases in the tintinnid species catalogue. The tintinnid species found ranged widely in lorica opening diameters (LOD) from about 11 µm to 80 µm in diameter. However, the median size of the LOD of the tintinnid assemblages varied little from year to year ranging only from about 30 µm to 40 µm. Most of the forms encountered were found in samples from only 1 or 2 cruises. Very few forms were found every year throughout the 10 years of sampling. These were 5 species of tintinnids (Acanthostomella norvegica, Leprotintinnus pellucidus, Pytchocylis obtusa, Salpingella acuminata, Salpingella faurei) and the nasselarian radiolarian Amphimelissa setosa. Examples of the morphological variability observed among individuals of Acanthostomella norvegica and Pytchocylis obtusa within single samples are shown with some individuals easily confused with forms described as other species are shown. To our knowledge, our data are the most extensive data set on Chukchi Sea microplankton. We provide all of the data recorded, which may serve as a baseline from which to assess changes projected in Arctic Sea systems, in a supplementary data file.

20

Characteristics of the winter phytoplankton in Rogozno Lake

88%

Mencfel R. , Pasztaleniec A.

Annales Universitatis Mariae Curie-Sklodowska. Sectio C, Biologia

|

2004

|

tom 59