Shrimp represents one of the most widely consumed species
of the Mediterranean and comprise an important source of nutrients in the human
diet. Aristaeomorpha foliacea (Risso 1827, commercial name: giant red shrimp)
of the Aristeidae family is widely distributed in the eastern and western
Atlantic, the western Pacific, the Indian Ocean and the Mediterranean Sea and
located at depths ranging from 250 m to 1300 m with maximum abundance found between
500 m and 700 m. Parapenaeus longirostris (Lucas 1846, deep seawater roseshrimp) of the Penaeidae family lives at depths ranging from 20 m to 700 m.
Parapenaeus longirostris is commonly found in all over the Mediterranean and
the Atlantic, as well as, in the West (from Massachusetts to French Guiana) and
the East (from Portugal to Angola).
Aristaeomorpha foliacea is distinguished by
an intense uniform red coloring and it is considered large-sized, with ranging
on average from 13 cm to 20 cm, while P. longirostris has a rose color and itslength ranges from 8 to 16 cm . The color of shrimp is due to its carotenoid
content, which provides the typical red-orange tissue pigmentation and varies
according to its native habitat. The differences between the shrimp species
seem to be highly dependent on the type and variability of the oceanography of
the sea and the trophic characteristics in which these species spend most of
their adult life.
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