Sisio

Sisio is a term that can refer to several different things, most commonly a type of small, bioluminescent marine creature or a surname. In the context of marine biology, "sisio" is sometimes used informally to describe certain planktonic organisms that emit light. These organisms are often found in the upper layers of the ocean and their bioluminescence can create spectacular displays, particularly at night. The exact species or group of organisms referred to by this informal term can vary depending on regional usage and context.

As a surname, Sisio is of Italian origin. It is a relatively uncommon surname, and its distribution is primarily concentrated in certain regions of Italy and among Italian diaspora communities worldwide. Like many surnames, its origins are likely tied to historical occupations, geographical locations, or personal characteristics of the earliest bearers of the name. Research into genealogical records can provide more specific details about the history and prevalence of the Sisio surname.