Spatial and temporal patterns in the distribution of the zooplankton in a large tropical
reservoir were investigated for a year. The zooplankton was sampled at 10 limnetic stations …

The Vistula is a large lowland, temperate river receiving high loads of pollutants from a
densely populated catchment. On the other hand, the river is to a relatively small extent …

Monkey goby Neogobius fluviatilis and racer goby N. gymnotrachelus, both native to the
Ponto‐Caspian region, were discovered in Polish rivers during the mid‐1990s and currently …

The morphological and histological features of the gut of juvenile racer goby Neogobius
gymnotrachelus [range of body mass 0· 2–0· 9 g and standard length (LS) 20· 0–38· 8 mm] …

Within 1997-1999, studies were carried out in WĹ ‚ocĹ ‚awek Reservoir to determine diet
composition, growth rate, and condition of common bream, Abramis brama (L.)-the dominant …

We conducted a snapshot study to check the importance of non-native Ponto-Caspian
gobies (monkey and racer goby) in the diet of native obligate (northern pike, pikeperch) and …

Vistula, the main Polish river, runs from the very south to the very north of Poland, draining
54% of its area. It serves as a source of water and at the same time as recipient of sewage …

The food composition of small common bream, roach, pikeperch and ruffe was studied in the
shore area of the Włocławek Reservoir between July and October 1999. Zoobenthos and …

Summary In the years 2000–2001, specimens of two Ponto‐Caspian gobiids (racer goby
Neogobius gymnotrachelus and monkey goby Apollonia fluviatilis) were recorded for the first …

Knowledge of habitat requirements and interspecific interactions of invasive species helps
predict their impact and spread. We determined the relationships within the invasive …