Some observations on the marine organisms at Syowa Station and its adjacent waters

Abstract

The fish fauna and benthic fauna were studied at Syowa Station and its adjacent waters from spring to summer in 1974. The fishes were collected only by angling. The species of the fishes amounted to 7 species, such as Trematomus bernacchii, T. hansoni, T. newnesi, T. nicolai, Pagothenia borchgrevinki, Dissostichus mawsoni, Gymnodraco acuticeps. Among these fishes, T. bernacchii was dominant occupying 73.1%. T. hansoni was 15.1% of the total catch. Others appeared to be rare species in these regions except P. borchgrevinki. Regarding to the fish size, T. bernacchii was smaller than T. hansoni. The trap gear sampling was conducted every day from 26th of October 1974 to 11th of January 1975 in the Kita-no-seto Strait, except the days of bad weather. By this trap investigation Sterechinus neumayeri, Odontaster validus, Chlanidota densesculpta, Lineus corrugatus and T. bernacchii were collected. The most frequently appeared was Sterechinus which did not appear before the beginning of November. On the other hand, Lineus corrugatus which appeared frequently before the middle of November was not collected after that. These results showed a good accordance with the result obtained by HOSHIAI (Bentosu Ken. Ren.-shi, 15/16,1,1978).