Figure 1.
The investigated goby Neogobius melanostomus. Scale bar = 2 cm.
Figure 2.
A) Orchestia cavimana. B) Corophium curvispinum. C) Echinogammarus trichiatus. D) Dikerogammarus villosus. Scale bar = 2 mm.
Table 1.
Feeding ecology of Neogobius melanostomus.
Figure 3.
Number of isolated Pomphorhynchus tereticollis in relation to the total length [TL] of Neogobius melanostomus.
A significant relation between the number of Pomphorhynchus tereticollis specimens and the total length of Neogobius melanostomus was detected. With increasing size of the fish the intensity of parasites increases.
Table 2.
Parasitological calculations of the parasite fauna of Neogobius melanostomus.
Figure 4.
Dikerogammarus villosus as intermediate host for Pomphorhynchus tereticollis. A) Larval stage (late Acanthella) located in the body cavity. B) Isolated Acanthella larvae. Scale bar = 2 mm.
Figure 5.
Larval stage (Cystacanth) of the fish parasite Pomphorhynchus tereticollis isolated from the paratenic host Neogobius melanostomus.
A+C) Habitus of Pomphorhynchus tereticollis, light- and scanning electron microscopy. B+D) Detail of proboscis. Number and species specific structure details (arrows) of the proboscis hooks are clearly visible. Scale bar = 500 µm.