Sea squirt. Sea squirts (class Ascidiacea) are marine invertebrates which filter plankton from the water current which circulates through them. They are sedentary but have free-swimming larvae. Ascidian sea squirts are characterized by a tough outer layer of the polysaccharide tunicin, unlike other tunicates which are less rigid. Photographed in West Papua, Indonesia. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Douwma, Georgette |
Bildgröße: | 3407 px × 5130 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |