Temat: feeding ecology - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Feeding ecology of sprat (Sprattus sprattus L.) and sardine (Sardina pilchardus W.) larvae in the German Bight, North Sea
Autorzy:: Voss, R.
Dickmann, M.
Schmidt, J.O.
Powiązania:: https://bibliotekanauki.pl/articles/47806.pdf
Data publikacji:: 2009
Wydawca:: Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:: German Bight
sprat
coexistence
Sprattus sprattus
North Sea
habitat preference
food competition
Sardina pilchardus
larva
sardine
feeding ecology
Opis:: The abundance of the sardine in the North Sea suddenly increased after 1995. Since 2002, the sardine has been spawning regularly in the German Bight, and all its life stages can be found in the area. The larval feeding ecology of two small pelagic clupeiform species with very similar life histories was investigated, the particular aim being to determine signs of food overlap. The distribution and feeding of sprat and sardine larvae were investigated during late spring 2003 on two transects covering a wide range of environmental conditions in the German Bight. Larvae co-occurred at all the stations investigated. Sprat and sardine larvae shared a wide range of prey types. Gut fullness and feeding success were similar in both species; however, potential food competition is avoided to some extent by different habitat preferences.
Źródło:: Oceanologia; 2009, 51, 1; 117-138
0078-3234
Pojawia się w:: Oceanologia
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

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

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