6

02:18

Dusky Parrotfish

Dusky parrotfish, Scarus niger, common names the swarthy parrotfish, and black parrotfish, is a species of parrotfish. It is in  the phylum Chordata, class Actinopterygii and family Scaridae. Like other members of its family, it has characteristic 10 dorsal soft rays, 9 dorsal spines, 9 anal soft rays, and 3 anal spines ...

Stefano

January 29, 2025

155

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8

06:43

Sustainable fishing Red gorgonia

Among the many definitions of sustainable fishing we find this one: "sustainable fishing means leaving enough fish in the seas, respecting habitats and ensuring that people who depend on the fishing economy can maintain their livelihoods". A fairly effective sentence but rather incomplete since it only talks about fish and economy ...

Andrea Cirivasi

August 25, 2024

30

0

8

14:24

Colours of the Mediterranean Sea

Deep sea has an intense blue color. The light that penetrates the water changes its light intensity and its spectral composition by effect of  selective absorption by water of the different wavelengths that make up the visible spectrum. The ultraviolet and infrared stop the first few centimeters of depth, then extinguished the red, orange, yellow, green and purple and blue that reaches greater depths ...

Andrea Cirivasi

August 11, 2024

21

0