Two senior researchers from the National Institute Of Oceanography (NIO), Goa — Biju Abraham and Saramma U Panampunnayil — have discovered five new spices of mysids at the end of their year-long study from the coastal waters of Maharashtra and South Gujarat.
The duo has recorded vital details of 14 mysid spices through taxonomy. The study included ecology and distribution of mysids in the region. This was revealed in their paper, 'Mysids (Crustacea) from the shallow waters off Maharashtra and south Gujarat with description of a new species' which they have submitted to the NIO.
Fourteen species belonging to seven genre are represented, of which one species, Acanthomysis microps, is described as new to science.
The new species is distinguished from all the known species of the genus by the combination of broadly rounded rostrum, narrower eyes and the spination of the uropodal endopod and telson. Talking to DNA, Biju said, "Mysid is a very important species for human food, industrial use and utmost importance for the ecology and food chain of the marine life. We have registered 5 new species during the ongoing study. The new study also reveals that many of these species are coming under serious threat due high degree of pollution."
Of the 20 localities sampled, mysids occurred at 15 areas, though samples taken at the Mumbai harbour, Bhavnagar, Porbander, Veraval and Sutrapada yielded no mysids. The maximum density (7424 individuals/m3) was found at 11 localities with relatively high concentration at Thal, Daman, Versova and Mahim and was constituted by a single species - the Mesopodopsis orientalis.
He further informed that the present study extends the researchers knowledge on the Mysidacea much further into the northern coastal waters of the Arabian Sea.
Of the 14 species which have up to the present been referred to genus Acanthomysis, only 6, including the new species, are known from Indian waters.
The other species recorded are Siriella dubia, S jonesi, Rhopalophthalmus mumbayensis, R anishi, R murudana, R vijayai, Gastrosaccus dunckeri, Eurobowmaniella muticus, Afromysis dentisinus, Acanthomysis pelagica, A platycauda, A macrops and Mesopodopsis orientalis, and the differences shown by the present specimens from the published description are fully discussed in the study with their figures.
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