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More than 8000 species of sea sponges live in oceanic and freshwater habitats. [1] Sponge fishing historically has been an important and lucrative industry, with yearly catches from years 1913 to 1938 regularly exceeding 181 tonnes and generating over 1 million U.S. dollars. However, this demand for sea sponges has seen catch rates peak and in ...
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Glass sponges such as Claviscopulia are found worldwide in both hard and soft substrates and in the deeper part of the sea ranging from around 200m to more than 6000m. In some cases, glass sponges live in shallower areas like the submarine caves in Mediterranean or off the coast of British Columbia.
Spongia officinalis, better known as a variety of bath sponge, is a commercially used sea sponge. [2] Individuals grow in large lobes with small openings and are formed by a mesh of primary and secondary fibers.
A replica xylospongium (sponge on a stick) Ancient Roman latrines in Ostia Antica The xylospongium or tersorium, also known as a "sponge on a stick", was a utensil found in ancient Roman latrines, consisting of a wooden stick (Greek: ξύλον, xylon) with a sea sponge (Greek: σπόγγος, spongos) fixed at one end.
[34] [35] Most carnivorous sponges live in deep waters, up to 8,840 m (5.49 mi), [36] and the development of deep-ocean exploration techniques is expected to lead to the discovery of several more. [18] [34] However, one species has been found in Mediterranean caves at depths of 17–23 m (56–75 ft), alongside the more usual filter-feeding ...
When the Greek sponge divers started using surface supplied standard diving suits (locally called scaphandro) in 1865 the death and injury rate from decompression sickness was extremely high as the procedures for safe decompression were as yet unknown. Some estimates put the death toll at around 10,000 Mediterranean divers in the first 50 years ...
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