exceeds 100 g/m 2 . The total stock of both Laminaria on the Murman coast is 

 reckoned as 500 to 600 thousand tons of wet weight. 



Qualitative composition of zoobenthos. The composition of zoobenthos in the 

 Barents Sea has not been equally well investigated for all groups. Echinoder- 

 mata, Isopoda, Lamellibranchiata and Pisces are among those which have 

 been studied in detail. As yet work on Spongia, Hydrozoa, Bryozoa and some 

 forms of Protozoa is inadequate. Hence only an approximate composition, 

 including some forms of macroplankton, can be given for the bottom fauna 

 of the Barents Sea (see Table 42). 



One hundred and sixty-four species of the parasitic forms (Yu. Poljansky, 

 1955) should be added to these 1,730 species. Among them 33 Protozoa forms, 

 68 species of nemerteans, 20 species of nematodes, 3 species of leeches, 21 

 species of crustaceans. 



Littoral fauna. The Murman littoral fauna has been already described by 

 K. Derjugin in his Fauna of the Kola Inlet (1915). His pupils — E. F. Gur- 

 janova, I. Zachs and P. Ushakov — carried out specially detailed qualitative 

 biocoenotic and general ecological investigations of the littoral fauna during 

 the years 1925 to 1930. Finally, in 1933, a quantitative survey of the littoral 



Table 42 



