深海性小型節足動物の採集 : 機器,用具および船上でのサンプル処理

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タイトル別名
  • Collection of deep-sea small arthropods : gears for collection and processing of samples on deck
  • シンカイセイ コガタ セッソク ドウブツ ノ サイシュウ キキ ヨウグ オヨビ センジョウ デノ サンプル ショリ

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抄録

Small deep-sea arthropods have been collected during the surveys of benthic fauna of the Japanese waters. The gears for the collections and detailed procedure for processing sediments on board are described herein. As main gears for the collection, beam trawls of 3 m or 4 m span and biological dredge of 1 m span were used. Small ring nets attached inside to the beam trawl net were found effective to collect small animals. A large amount of the sediment, usually collected together with animals, was removed by gentle washing using a sieve of 0.5 mm nylon mesh to isolate specimens. The arthropod specimens will be examined for taxonomic, zoogeographical and ecological studies in the future.

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