| Popis: |
Of the 168 fish species living in the Western Antarctic, 104 species belonging to 20 families occur in the South Shetland area: 39 species from 10 families have been found in the Admiralty Bay, 91 species (29 families) in theSouth Georgia area; the South Orkney region hosts 74 species from 18 families while the near Antarctic Peninsula shelf 71 species from 19 families. The respective figures were lower in the Southern Sandwich area, amounting to 44 species from 17 families. Endemic species amounted to 61.2%, the remaing 38.8% being cosmopolitan. The South Georgia area and the neighbouring Shag Rocks area differed also in the composition and biomass of several commercially harvested fish species, such as Pseudochaenichthys georgianus Norman, 1937, Notothenia rossii Richardson, 1844, Patagonotothen guntheri Norman, 1937 or Lepidonotothen squamifrons Gunther, 1880. The South Shetland and Antarctic Peninsula regions were also distinguished from the South Georgia region by the presence of Champsocephalus gunnari Lonnberg, 1905 and above all, by the biomass of Gobionotothen gibberifrons Lonnberg, 1905, which is present in the former, but not found in the latter of the areas. |
