sardegna, capo ferrato, secca delle cicale, gerardia savaglia

            La gerardia savaglia viene chiamata falso corallo nero perchè produce uno scheletro di colore scuro, generalmente nerastro. Non essendo in grado di creare spontaneamente una struttura scheletrica, le colonie si insediano spesso sugli scheletri preesistenti delle gorgonie, e possono con facilità superare il metro di lunghezza. I polipi del corallo sono gialli e piuttosto grandi (2- 3 cm di diametro), e catturano il cibo prelevandolo dalla corrente che li attraversa.
E' una specie mediterranea e atlantica, piuttosto rara. 
   

Taken on: August 20, 2008

Sets appears in: • top underwater • Tutto Mediterraneo more » • sardegna sommersa • coralli « less

Camera: Canon EOS 350D, f/4.0, 1/60 sec, 18mm, ISO 100 (more info) (hide info)

Camera:	Canon EOS 350D
Aperture:	f/4.0
Exposure Time:	0.017 sec (1/60)
Focal Length:	18mm
ISO:	100
Exposure Bias:	0 EV
Flash:	On, Fired
Exposure Program:	Program AE
Metering Mode:	Partial
Color Space:	sRGB
Software:	QuickTime 7.4.5
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