The introduction of non-native species is recognized as a major threat to biodiversity, particularly in freshwater ecosystems. Pikeperch Sander lucioperca, recent invader Portugal, primarily providing commercial and angling interest. aim this work was study the diet top predator across Portuguese basins evaluate its potential impact on recipient In total, 256 pikeperch stomachs from seven were ...

The present study investigates the effects of different feeding regimes with rotifers ( Brachionus plicatilis ) and Artemia salina on gene expression digestive enzymes in pikeperch Sander lucioperca larvae at 17 days post-hatch (DPH) over a period 13 days. Five experimental protocols were performed four replicates. At 4 DPH, (total length= 5.62 ± 0.03 mm, body weight = 0.66 0.16 mg) divided int...

In addition to ecological factors, evolutionary processes can determine the invasion success of a species. In particular, genetic admixture has the potential to induce rapid evolutionary change, which can result from natural or human-assisted secondary contact between differentiated populations. We studied the recent range expansion of zander in Germany focusing on the interplay between invasio...

This study was designed to determine the influence of thermal level and duration chilling period on initiation progress gonadogenesis gametogenesis under controlled conditions in pikeperch (Sander lucioperca). A set 120 fish distributed into eight tanks (15 per tank). The effects two temperatures (6 or 12°C) combination with durations period, either short (S; 75 days at 6°C 125 long (L; 135 185...