166 



BIOLOGY OF THE SEAS OF THE U.S.S.R, 

 1884 



890 



PELAGIC CRUSTACEANS 

 (EUPHAUSIACEA, HYPERIIDAE, PRAWNS) 



Г\ BOTTOM CRUSTACEANS (EUPAGURUS. 

 HYAS, AMPHIPODA, CUMACEA) 

 FISH (MOSTLY MALLOTUS VILLOSUS) 

 CAPELIN ROE 

 SEA-BED 

 REMAINDER OF BENTHOS 



Fig. 67. Average food ranges and significance of certain groups of benthos-eating 

 haddock (A) off Murman coast and (B) in open Sea (Zatzepin). Mean repletion 

 index given by numerals above circles. 



sipunculids {Phascolosoma margaritacewri) and feeds to a much lesser extent 

 on molluscs (Leda, Portlandia, Macoma Yoldia, Nucula, Natica, Margarita) 

 and polychaetes (Onuphis, Myriochele, Nephthys, Lumbriconereis). 



The same can be observed in different Murman coast areas for the Cyprina 

 islandica community {Table 74). 



Here too the haddock's preference for some types of food is fairly evident. 

 It is not clear whether the sea-bottom material gets into the haddock's in- 

 testines from the animals on which it feeds and thrives (brittle stars and 

 Phascolosoma feed on the sea bottom), or is seized with the animals consumed, 

 or is swallowed as such. Echinoderms become less and less important in 

 haddocks' nutrition as they proceed to the east ; they are replaced by small 

 molluscs and polychaetes. 



Table 72. Composition of haddock' 's diet 



