Term class 
              Biological terms
          The term in English
              Nekton
          English article
              An aquatic organism, such as fish and krill (euphausiids), that can swim powerfullyenough to move against currents (contrast with Plankton).
The term in Russian
              Нектон
          Russian article
              Водные организмы, обитающие в толще воды, в отличие от планктона, способные к движению, в том числе против течений.
The term in Finnish
              Nekton
          Finnish article
              Eliöt jotka pystyvät uimaan veden virtauksia vastaan.
The term in Estonian 
              Nekton, ujum
          Estonian article
              Avavees (pelagiaalis) elavate aktiivselt ujuvate loomade kogum.