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Wyświetlanie 1-15 z 20
Tytuł:
Pelagic Polychaeta in the Scotia Front west of Elephant Island (BIOMASS III, October—November 1986)
Autorzy:
Siciński, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/2053216.pdf
Data publikacji:
1988
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Antarctica
pelagic Polychaeta
BIOMASS III
Źródło:
Polish Polar Research; 1988, 9, 2-3; 277-282
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
VRML visualization of pelagic fish movement in the echosounder beam
Autorzy:
Moszyński, M.
Bikonis, K.
Demkowicz, J.
Powiązania:
https://bibliotekanauki.pl/articles/332747.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Akustyczne
Tematy:
VRML
pelagic
fish
echosounder beam
Opis:
During over thirty years of development of echosounders, the acquisition software has developed different kind of charts for data visualization. In the paper the concept of creation of dynamic echograms from the data acquired in acoustical surveys is presented. As the modern split-beam echosounders allow for nonambiguous localization of targets in the water column, it is possible to visualize them in 3D coordinate system. Virtual Reality Modeling Language VRML is a popular language used in modeling of virtual reality. Using its build-in properties, it is relatively easy to visualize movement of fish treated as an object in any coordinate system. VRML despite the typical application in computer graphics is also used in other various fields. For instance in chemistry it is used for visualization of atom particles, in medicine for modeling of human organs, in astronomy for visualization of trajectories of the stars and in geography and navigation for creation of 3D maps. Hence, in this paper we describe its application in fisheries. Additionally, as the any WWW browser can be equipped with VRML plugin 3D fish visualization can be redistributed in the Internet.
Źródło:
Hydroacoustics; 2003, 6; 53-58
1642-1817
Pojawia się w:
Hydroacoustics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fishes in pelagic catches in the South Shetlands area (BIOMASS III, October—November 1986 and January 1987)
Autorzy:
Skóra, Krzysztof E.
Powiązania:
https://bibliotekanauki.pl/articles/2053201.pdf
Data publikacji:
1988
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Antarctica
pelagic juvenile fishes
BIOMASS III
Źródło:
Polish Polar Research; 1988, 9, 2-3; 367-383
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Summer hydrology and zooplankton in two Svalbard fiords
Autorzy:
Węsławski, J. Marcin
Jankowski, Andrzej
Kwaśniewski, Sławomir
Swerpel, Sławomir
Ryg, Morten
Powiązania:
https://bibliotekanauki.pl/articles/2052815.pdf
Data publikacji:
1991
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Arctic
fiords hydrology
zooplankton
pelagic food base
Źródło:
Polish Polar Research; 1991, 12, 3; 445-460
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Late Visean pelagic chondrichthyans from northern Europe
Autorzy:
Ginter, M.
Duffin, C.J.
Dean, M.T.
Korn, D.
Powiązania:
https://bibliotekanauki.pl/articles/22095.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Late Visean
pelagic fauna
chondrichthyan
tooth
Carboniferous
Europe
Opis:
The relatively rich assemblages of shark teeth from pelagic limestone (Mississippian, late Viséan, late Asbian-middle Brigantian) of three northern European regions: the Rhenish Mountains (Westenfeld Quarry, Germany), the Holy Cross Mountains (Todowa Grząba at the edge of Ostrówka Quarry, Poland), and Derbyshire (Cawdor Quarry, Matlock, England, UK) display certain similarities, with the absolute predominance of the teeth of Falcatidae (small Symmoriiformes) and the constant presence of Thrinacodus spp. The largest and most diverse assemblage from Todowa Grząba contains at least three species of a falcatid Denaea, a xenacanthimorph Bransonella nebraskensis, a newly described phoebodontid Thrinacodus dziki sp. nov., a few ctenacanthiform and euselachian teeth, and two abraded euchondrocephalan dental elements. Anachronistidae, common in the most of late Viséan pelagic faunas, are absent from Todowa Grząba and Westenfeld. The material under study differs from the shallow-water chondrichthyan fauna, hitherto described from the Mississippian carbonate platform facies, by its taxonomic content (particularly almost total absence of Euchondro-cephali), generally lower diversity, and higher frequency of small teeth.
Źródło:
Acta Palaeontologica Polonica; 2015, 60, 4
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Distribution and population structure of pelagic Ostracoda near the sea-ice edge in the Scotia Sea and off the King George Island (December 1988 January 1989)
Autorzy:
Błachowiak-Samołyk, Katarzyna
Osowiecki, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/2052112.pdf
Data publikacji:
2002
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Antarctic
pelagic Ostracoda
vertical distribution
horizontal distribution
population structure
Źródło:
Polish Polar Research; 2002, 23, 2; 135-152
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Unconformity surfaces in pelagic carbonate environments : A case from the Middle Bathonian of the Betic Cordillera, SE Spain
Autorzy:
Nieto, L. M.
Rodríguez-Tovar, F. J.
Molina, J. M.
Reolid, M.
Ruiz-Ortiz, P. A.
Powiązania:
https://bibliotekanauki.pl/articles/191710.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
Unconformity
pelagic swell
softground
firmground
hardground
Middle-Late Jurassic
Betic External Zone
Opis:
Integrative studies of sedimentary and palaeontological topics for unconformity surfaces are useful in basin analysis. A middle Bathonian unconformity surface in the Ammonitico Rosso facies cropping out in the La Mola Unit (Subbetic Domain, Betic External Zone) was studied by integrating ichnological, palaeotectonic, and sedimentological analyses to decipher sea-level, tectonic, and palaeogeographic conditions during its development. The trace-fossil assemblage mainly consists of the Glossifungites (Thalassinoides, Arenicolites, and Gastrochaenolites) and Trypanites ichnofacies elements. Probable Ophiomorpha represents previous softground stages, Thalassinoides and Arenicolites were formed in firmground, Gastrochaenolites reflects an evolved firmground or early hardground, and Trypanites can be attributed to an incipient hardground. The degree of firmness, relative sea-level position, and continuity of deposition were related. The softground stage corresponds to a fall in relative sea level and continued deposition. The firmground (semi-consolidated substrate) probably reflects an extremely low sea level characterized by non-deposition, whereas the incipient hardground stage indicates an initial phase of relative sea-level rise, with an increase in marine current energy. The presence of two neptunian dyke systems reflects significant tectonic activity related to the transtensional deformation that affected the South Iberian Palaeomargin. Lateral variations in sedimentological and ichnological features recorded at similar discontinuity surfaces in nearby areas were considered and related to differences in bottom topography, with associated changes in sedimentation, and to the variable duration of the hiatus.
Źródło:
Annales Societatis Geologorum Poloniae; 2014, 84, 3; 281-295
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Long term variation of sardine Sardina pilchardus spawning along the Atlantic coast of Northwest Africa (21–26°N): characterization and spatiotemporal variability in spawning habitat
Autorzy:
Abdelouahab, H.
Berraho, A.
Baibai, T.
Larissi, J.
Charib, S.
Agouzouk, A.
Makaoui, A.
Ettahiri, O.
Errhif, A.
Powiązania:
https://bibliotekanauki.pl/articles/2079005.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
pelagic fish
sardine
Sardina pilchardus
population dynamics
environment change
spawning
sea surface
temperature
Atlantic coast
Opis:
Small pelagic fish such as sardine show strong recruitment variability often associated with environmental changes influencing the spawning process and ultimately, affecting population dynamics. Sardine (Sardina pilchardus, Walbaum 1792) is one of the most exploited pelagic species along the northwest African coast. The main spawning occurs during the cold season (autumn—winter). A time-series autumn—winter surveys extending from 1994 to 2015 sampled sardine eggs, along the southern area of the Moroccan Atlantic coast (26°N—21°N) were analyzed. The present work focuses on examining the inter-annual variability of the spawning habitat by analyzing the spatial-temporal variability of sardine egg distribution and density extracted from the data collected over the period 1994—2015. Generalized additive models (GAM) were used to detect the relationships between the sardine distribution, expressed as egg density and the presence or absence data and relevant hydrobiological environmental variables, such as salinity, temperature and zooplankton biomass. The generalized additive models showed significant relationships between the environment variables (SST, SSS and Zooplankton biomass) and sardine density, but not with sardine presence. Given that the study area is characterized by high mesoscale features and significant upwelling activities, the variability of upwelling processes could explain the changes of spawning ground position and thermal window
Źródło:
Oceanologia; 2021, 63, 1; 1-11
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pelagic coelenterates in the waters of the western part of the Egyptian Mediterranean Coast during summer and winter
Autorzy:
Zakaria, H.Y.
Powiązania:
https://bibliotekanauki.pl/articles/48385.pdf
Data publikacji:
2004
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
hydromedusa
pelagic coelenterate
Mediterranean Sea
zooplankton
Coelenterata
siphonophore
summer
winter
Egyptian Mediterranean Coast
water
distribution
Opis:
During August 2000 and February 2001 two cruises were carried out along the Egyptian Mediterranean Coast on the Egyptian r/v ‘El-Yarmouk’. The samples collected were used to study the ecology and distribution of hydromedusae and siphonophores during summer and winter. The density of hydromedusae was high in the inshore waters during summer (av. 71 org × 100 m−3), decreasing to 28 organisms per 100 m3 in the oceanic waters; in winter they were more abundant in the middle and offshore zones. Ato tal of 9 hydromedusae species were recorded during the present study, 8 of them in summer. The most common of these were Aglaura hemistoma, Olindias singularis, Liriope tetraphylla and Geryonia proboscidalis. Only 4 species were recorded during winter, including Cunina octonaria, which was not recorded during the summer. The nine species recorded in the present study are circumtropical. The siphonophore density was high in summer. In winter, the average standing crop of siphonophores fell to about 30% of that recorded in summer. 11 siphonophore species were recorded, 10 of them in summer; Cucullus campanula and Eudoxoides spiralis were the most common. Only 6 species were recorded in winter. These 11 species are widely distributed – they have been recorded from the Atlantic, Indian and Pacific Oceans. Strong seasonality is thus a striking feature of Egyptian Mediterranean waters. Temperature is the most variable factor affecting the planktonic community, fluctuating between 26.5 and 27◦C in summer and between 16.3 and 17.5◦C in winter. The western part of the Egyptian coast, the area under study in this work, is poorly diversified in comparison with the eastern part.
Źródło:
Oceanologia; 2004, 46, 2
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Diatoms of the Rosnowskie Duze Lake in the Wielkopolska National Park in the years 2002 and 2003
Okrzemki jeziora Rosnowskiego Duzego w Wielkopolskim Parku Narodowym w latach 2002 i 2003
Autorzy:
Celewicz-Goldyn, S.
Powiązania:
https://bibliotekanauki.pl/articles/878492.pdf
Data publikacji:
2006
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu
Tematy:
nymphaeid
Wielkopolski National Park
Polska
elodeid
helophyte
eutrophic lake
phytoplankton
Lake Rosnowskie Duze
taxonomy
diatom
pelagic zone
Źródło:
Roczniki Akademii Rolniczej w Poznaniu. Botanika-Steciana; 2006, 10
1896-1908
Pojawia się w:
Roczniki Akademii Rolniczej w Poznaniu. Botanika-Steciana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Baltic herring (Clupea harengus membras) spawning grounds on the Lithuanian coast: current status and shaping factors
Autorzy:
Saskov, A.
Siaulys, A.
Bucas, M.
Daunys, D.
Powiązania:
https://bibliotekanauki.pl/articles/47793.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
Baltic herring
Clupea harengus membras
spawning season
geomorphology
bathymetry
Lithuania
Baltic Sea
coastal water
pelagic ecosystem
water temperature
Źródło:
Oceanologia; 2014, 56, 4
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Pelagic phytoplankton in four basins of the Rosnowskie Duze Lake in the Wielkopolska National Park
Charakterystyka fitoplanktonu pelagicznego czterech basenow jeziora Rosnowskiego Duzego w Wielkopolskim Parku Narodowym
Autorzy:
Celewicz-Goldyn, S.
Powiązania:
https://bibliotekanauki.pl/articles/878496.pdf
Data publikacji:
2005
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu
Tematy:
Wielkopolski National Park
Polska
green alga
eutrophic lake
botany
phytoplankton
Lake Rosnowskie Duze
shallow lake
lake basin
pelagic zone
Źródło:
Roczniki Akademii Rolniczej w Poznaniu. Botanika-Steciana; 2005, 08
1896-1908
Pojawia się w:
Roczniki Akademii Rolniczej w Poznaniu. Botanika-Steciana
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of the winter phytoplankton bloom on the settled material in a temperate shallow estuary
Autorzy:
Guinder, V.A.
Lopez-Abbate, M.C.
Berasategui, A.A.
Negrin, V.L.
Zapperi, G.
Pratolongo, P.D.
Fernandez Severini, M.D.
Popovich, C.A.
Powiązania:
https://bibliotekanauki.pl/articles/47931.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
phytoplankton bloom
chlorophyll a
sediment trap
resuspension
shallow estuary
pelagic food web
nutrient concentration
particulate organic matter
coastal environment
Źródło:
Oceanologia; 2015, 57, 1
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Morphology and distribution of phage-like particles in a eutrophic boreal lagoon
Autorzy:
Sulcius, S.
Staniulis, J.
Paskauskas, R.
Powiązania:
https://bibliotekanauki.pl/articles/47555.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
aquatic ecosystem
Baltic Sea
biodiversity
Curonian Lagoon
distribution
electron microscopy
morphology
pelagic ecosystem
spatial distribution
virus
virus-like particle
Opis:
In this paper we present the results of direct observations of the morphology and size of phage-like particles by means of transmission electron microscopy (TEM) as a function of their spatial distribution in the shallow highly productive Curonian Lagoon of the Baltic Sea. In total, 26 morphologically different forms of phagelike particles were found. Different trends of distribution in terms of abundance, size and shape of virus-like particles were demonstrated. The total abundance of viruses varied from 1.91×107 ml−1 to 5.06×107 ml−1. The virus to bacteria ratio (VBR) changed from 15.6 to 49 and was negatively associated with total bacterial numbers (r = −0.60; p < 0.05). The phages of family Myoviridae were the most diverse and were dominant at all stations.
Źródło:
Oceanologia; 2011, 53, 2
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Phycoflora in the basin of the Rosnowskie Duze Lake exposed to anthropopressure
Fykoflora basenu jeziora Rosnowskiego Duzego poddanego antropopresji
Autorzy:
Celewicz-Goldyn, S.
Powiązania:
https://bibliotekanauki.pl/articles/878458.pdf
Data publikacji:
2006
Wydawca:
Uniwersytet Przyrodniczy w Poznaniu
Tematy:
Wielkopolski National Park
Polska
green alga
qualitative analysis
quantitative analysis
phycoflora
anthropopressure
phytoplankton
Lake Rosnowskie Duze
eutrophication
pelagic zone
Źródło:
Roczniki Akademii Rolniczej w Poznaniu. Botanika-Steciana; 2006, 10
1896-1908
Pojawia się w:
Roczniki Akademii Rolniczej w Poznaniu. Botanika-Steciana
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 20

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