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Wyszukujesz frazę "zooplankton" wg kryterium: Temat


Wyświetlanie 1-8 z 8
Tytuł:
Characteristics of the Arctic and Antarctic mesozooplankton in the neritic zone during summer
Autorzy:
Walkusz, Wojciech
Kwaśniewski, Sławomir
Dmoch, Katarzyna
Hop, Haakon
Żmijewska, Maria Iwona
Bielecka, Luiza
Falk-Petersen, Stig
Siciński, Jacek
Powiązania:
https://bibliotekanauki.pl/articles/2052045.pdf
Data publikacji:
2004
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Arctic (Kongsfjorden)
Antarctic (Admiralty Bay)
zooplankton
Copepoda
abundance
biomass
Źródło:
Polish Polar Research; 2004, 25, 3-4; 275-291
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spatio-temporal distribution, abundance and diversity of zooplankton community structure in River Shasha, Southwestern Nigeria
Autorzy:
Adedeji, A. A.
Adesakin, T. A.
Oni, T. M.
Oyebamiji, S. P.
Olowogboyega, V. T.
Powiązania:
https://bibliotekanauki.pl/articles/1076780.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Arthropoda
Cladocera
Copepoda
Ostracoda
Protozoa
Rotifera
Zooplankton
environmental condition and monitoring
eutrophication
Opis:
This study was carried-out to investigate the abundance and diversity of zooplankton in River Shasha, Southwest Nigeria. The zooplankton community constitutes an important component in the faunal composition of the water body. Samples were collected bi-monthly between February 2006 to February 2008, with a mind of capturing various seasons in the period of study, at two sampling stations (Ipetumodu and Edun-abon) established along River Shasha. A total number of 54 zooplankton species were identified, comprising of five classes, namely Rotifera (29 species), Ostracoda (8 species), Arthropoda (5 species), Copepoda (5 species), Protozoa (4 species) and Cladocera (3 species). The most abundant species were Brachionus, Lecane and Keratella recorded the highest distribution among the zooplankton observed during the sampling period. Among the Rotifers, Branchions patulus and Filina opoliensis were found abundant. Holopedium amazonicum and Scapholebris armata were predominant among the Cladoceras. Among the Copepods the dominant species was Ectocyclops phaleratus and Hemicypris ovate and Cypris subglobosa among Ostracoda. Among the Protozoa, Diffugia sp and Vorticella sp were observed. Ceratopogonid sp. was most dominant among Arthropoda. The density of zooplankton population was maximum during dry season (158702 Org/L) and minimum (12402 Org/L) during rainy season due to the different environmental conditions of the water bodies. The overall mean abundance of zooplankton population was in the following order: Rotifera > Protozoan > Arthropoda > Copepoda > Cladocera >Ostracoda. The few species of Zooplankton identified in River Shasha may reflect the moderate level of limit nutrient and there is need for regular monitoring of the waterbody to avoid the excess input of nutrients from domestic and agricultural waste that could lead to eutrophication.
Źródło:
World News of Natural Sciences; 2019, 24; 299-321
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Epibionts and parasites on crustaceans (Copepoda, Cladocera, Cirripedia larvae) inhabiting the Gulf of Gdansk (Baltic Sea) in very large numbers
Autorzy:
Bielecka, L.
Boehnke, R.
Powiązania:
https://bibliotekanauki.pl/articles/958162.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
crustacean zooplankton
epibiont
parasite
Copepoda
Cladocera
Cirripedia
Gdansk Gulf
Baltic Sea
marine environment
eutrophication
Źródło:
Oceanologia; 2014, 56, 3
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Unravelling the spatio-temporal variation of zooplankton community from the river Matla in the Sundarbans Estuarine System, India
Autorzy:
Nandy, T.
Mandal, S.
Powiązania:
https://bibliotekanauki.pl/articles/2079187.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
zooplankton
Copepoda
bioindicator
spatio-temporal variability
ecosystem functioning
seasonal fluctuation
estuarine water
Indian Sundarban
hydrographic change
Opis:
Zooplankton is an important bioindicator of ecosystem functioning. Knowledge of the seasonal fluctuation in the zooplankton population in estuarine waters of the Indian Sundarbans is rather limited. In the present study, we analysed the community structure of zooplankton assemblages and their spatio-temporal variations based on different multivariate statistics and indicator value analysis. A total of 56 taxa were identified and the density was primarily dominated by planktonic copepods and few meroplankton communities during four sampling seasons. The most abundant species were: Acartia spinicauda, Acartia sp., Bestiolina similis, Euterpina acutifrons, Labidocera acuta, Paracalanus aculeatus, Paracalanus parvus and Paracalanus indicus. Canonical Correspondence Analysis highlighted that temperature, pH, DO, salinity and nutrients were the prevailing environmental parameters associated with significant spatio-temporal changes of zooplankton distribution in this area. The highest abundance of zooplankton was recorded in winter, followed by monsoon, summer and spring. Throughout the study period, different zooplankton indices were observed in good condition. Seasonal occurrence of dominant zooplankton with high IndVal index was markedly observed and it might be used as a potential bioindicator for a particular season and environmental condition in this estuarine complex. The results of this study provide evidence for the presence of warm water species in the estuarine waters of the Indian Sundarbans and can be a clear indication of climate change-mediated elevated temperature in the estuarine system. Our results underscore the high diversity of zooplankton from mangrove dominated estuarine complex and emphasize the need for long-term monitoring in ecologically fragile ecosystems like the Sundarbans Estuarine System.
Źródło:
Oceanologia; 2020, 62, 3; 326-346
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Life in sympatry: coexistence of native Eurytemora affinis and invasive Eurytemora carolleeae in the Gulf of Finland (Baltic Sea)
Autorzy:
Sukhikh, N.
Souissi, A.
Souissi, S.
Holl, A.-C.
Schizas, N.V.
Alekseev, V.
Powiązania:
https://bibliotekanauki.pl/articles/48676.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
Eurytemora affinis
Eurytemora carolleeae
Copepoda
zooplankton
invasive species
native species
population dynamics
Finland Gulf
Baltic Sea
Źródło:
Oceanologia; 2019, 61, 2
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Baltic herring prey selectively on older copepodites of Eurytemora affinis and Limnocalanus macrurus in the Gulf of Riga
Autorzy:
Livdane, L.
Putnis, I.
Rubene, G.
Elferts, D.
Ikauniece, A.
Powiązania:
https://bibliotekanauki.pl/articles/48687.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
herring
Clupea harengus membras
zooplankton
selective feeding
condition factor
Riga Gulf
Copepoda
Limnocalanus macrurus
Eurytemora affinis
Źródło:
Oceanologia; 2016, 58, 1
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Seasonal and diel changes in the vertical distribution in relation to the age structure of Microcalanus pygmaeus Sars and Ctenocalanus citer Bowman and Heron, (Pseudocalanidae, Copepoda) from Croker Passage (Antarctic Peninsula)
Autorzy:
Zmijewska, M.I.
Bielecka, L.
Grabowska, A.
Powiązania:
https://bibliotekanauki.pl/articles/47951.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
zooplankton
Antarctic
coastal water
Microcalanus pygmaeus
Pseudocalanidae
vertical distribution
plankton
Ctenocalanus citer
age structure
Antarctic Peninsula
seasonal change
Copepoda
Opis:
The development of two representatives of Pseudocalanidae and the nature of their population distribution in the water column were investigated on the basis of plankton samples collected over three seasons in night-day series in Croker Passage. The investigations showed that the two species begin reproducing in different seasons. Regardless of season, the growth of M. pygmaeus is more advanced than that of C. citer. Both species are characterised by a separation of their populations in the water column. The youngest copepodite stages (I–III) inhabit the upper portion of the water in which the given species occurs, while the oldest specimens, especially males, inhabit the deepest waters. Additionally, the first growth phases (CI–CIII) show a tendency to concentrate closer to the surface at night.
Źródło:
Oceanologia; 2000, 42, 1
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The influence of water mass dynamics on the changes of invertebrates number in Lake Gardno
Wpływ dynamiki mas wodnych na zmiany liczebności bezkręgowców jeziora Gardno
Autorzy:
Paturej, E.
Jablonska, I.
Powiązania:
https://bibliotekanauki.pl/articles/85027.pdf
Data publikacji:
1999
Wydawca:
Akademia Pomorska w Słupsku
Tematy:
water mass dynamics
invertebrates number
population change
Lake Gardno
zooplankton
zoobenthos
coastal lake
lake
abiotic factor
Rotatoria
Cladocera
Copepoda
Chironomidae
Oligochaeta
Gastropoda
Bivalvia
Trichoptera
Amphipoda
Źródło:
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline; 1999, 03
1643-0115
Pojawia się w:
Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-8 z 8

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