Coloured scanning electron micrograph (SEM) of a Gyrodactylus salaris aquatic parasite. G. salaris is a small monogenean ectoparasite (about 0.5 mm long) which lives mainly on the skin and fins of freshwater fish, especially Atlantic salmon. Feeding mostly on the mucus and epithelial cells of the skin's surface it attaches to the host by means of a complex hook and anchor arrangement and it is this attachment which damages tissues and causes great irritation to the fish. The fish shows obvious signs of irritation and the damaged areas can develop into significant skin ulcers and fin erosions, often with secondary bacterial and fungal infections. Magnification: x320 when printed at 10cm wide. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / VETINST / JANNICKE WIIK-NIELSEN |
Bildgröße: | 3981 px × 2657 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |