. Biology of the seas of the Marine biology -- Soviet Union; Hydrology -- Soviet Union. 890. PELAGIC CRUSTACEANS (EUPHAUSIACEA, HYPERIIDAE, PRAWNS) ?\ 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
. Biology of the seas of the Marine biology -- Soviet Union; Hydrology -- Soviet Union. 890. PELAGIC CRUSTACEANS (EUPHAUSIACEA, HYPERIIDAE, PRAWNS) ?\ 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 Food group Murman coast Open sea Pelagic crustaceans (Euphausiaceae) Bottom crustaceans (Amphipoda) Remaining benthos Fish Sea-bottom material General repletion index 3-6 1-5 390 130 35-3 97-5 2-2 91 44-1 121 31-4 890. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Zenkevich, L. A. (Lev Aleksandrovich), 1889-1970. New York, Interscience Publishers
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