Most of the fish recorded are medium-sized, with at least 10 each of various kinds of carp or cod, but several species averaging more than 2000 grams in mature mass have been taken, including common barbell (Barbus barbus), common carp (Cyprinus carpio), northern pike (Esox lucius) and a few species of trout, even bigger marine predators like the anglerfish (Lophius piscatorius) and European conger (Conger conger).