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    Wyświetlanie 1-3 z 3
    Tytuł:
    The Chinese mitten crab Eriocheir sinensis (Decapoda: Grapsidae) from Polish waters
    Autorzy:
    Normant, M.
    Wiszniewska, A.
    Szaniawska, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/47486.pdf
    Data publikacji:
    2000
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    Decapoda
    Odra estuary
    Eriocheir sinensis
    Baltic Sea
    Polish water
    Chinese mitten crab
    crab
    Grapsidae
    Opis:
    The Chinese mitten crab Eriocheir sinensis Milne-Edwards, 1854 is a newcomer to the Baltic Sea. Previous studies have shown that since the 1940s single large specimens of this species have been caught annually in Polish waters. The invasion of the Chinese mitten crab has been reported from many European countries, including Poland, where it is especially abundant in the Odra Estuary. Of 186 specimens captured in Lake Dąbie in August 1998, 45% were females and 55% males. The carapace width of these crabs varied between 53 and 88 mm and the average wet weight was 169±45.3 g.
    Źródło:
    Oceanologia; 2000, 42, 3
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Feeding ecology of the American crab Rhithropanopeus harrisii (Crustacea, Decapoda) in the coastal waters of the Baltic Sea
    Autorzy:
    Hegele-Drywa, J.
    Normant, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/47763.pdf
    Data publikacji:
    2009
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    Rhithropanopeus harrisii
    stomach content
    Baltic Sea
    Crustacea
    brackish water
    coastal water
    non-native species
    Decapoda
    feeding ecology
    American crab
    Opis:
    The feeding ecology of the American crab Rhithropanopeus harrisii Gould, 1841 from brackish waters of the Baltic Sea was studied by analyses of the stomach repletion index (SRI) and stomach content with regard to sex, size and habitat (Dead Vistula River and the Gulf of Gdańsk). Neither the sex nor the size of an individual crab had a significant (P>0.05) influence on the SRI or on the diversity of food items found in the stomachs of R. harrisii. But the type of food consumed was significantly (P<0.05) dependent on the locality inhabited: the greater the biodiversity of the habitat, the richer the dietary composition. In Baltic coastal waters this species feeds on detritus, and also on animal and plant matter. Remains of Chlorophyta, Amphipoda, Ostracoda, Polychaeta, Gastropoda and Bivalvia were found in the stomachs of the specimens analysed.
    Źródło:
    Oceanologia; 2009, 51, 3; 361-375
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    What is the diet of Palaemon elegans Rathke, 1837 (Crustacea, Decapoda), a non-indigenous species in the Gulf of Gdańsk (Southern Baltic Sea)?
    Autorzy:
    Janas, U.
    Baranska, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/49052.pdf
    Data publikacji:
    2008
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    alga
    Ostracoda
    plant component
    Baltic Sea
    Crustacea
    Gammarus
    diet
    macrozoobenthos
    Decapoda
    prawn
    Ectocarpaceae
    coastal zone
    Palaemon elegans
    non-indigenous species
    dietary component
    Cladophora
    feeding
    Gdansk Gulf
    Harpacticoida
    Chironomidae
    animal component
    Opis:
    Palaemon elegans, a new component of the Gulf of Gdańsk macrozoobenthos, colonised the southern Baltic coastal zone in the late 20th and early 21st century. Analysis of the stomach contents of P. elegans revealed 16 plant and animal taxa that these prawns had fed on. The principal dietary component was detritus, with a mean frequency of occurrence in stomachs of > 80%. The most frequently occurring plant components in the diet were algae from the genus Cladophora and the family Ectocarpaceae, while the most significant animal components were Harpacticoida, Chironomidae, Ostracoda and Gammarus spp. The results of the study show that the dietary composition of P. elegans differed significantly between stations and months. The foraging area consisted of two distinctive regions – the Inner Puck Bay, and the Outer Puck Bay together with the Dead Vistula River; two of the stations – Gdynia and Sopot – were distinct from all the others. However, no obvious seasonality in the food composition could be demonstrated.
    Źródło:
    Oceanologia; 2008, 50, 2; 221-237
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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