. Biology of the seas of the Marine biology -- Soviet Union; Hydrology -- Soviet Union. 108 BIOLOGY OF THE SEAS OF THE Table 40 Average biomass, kg/m2 Species Western Murman Craggy cliffs Rocky shale Gulmar fjord (Sweden) (Gislen, 1930) Ascophyllum nodosum Fucus vesiculosus 160 16-5 8-8 100 160 90 The distribution of macrophytes on the sands and mud of the Murman littoral is quite different. One of the small bights of the Kola Inlet, 220 m long and 100 to 120 m wide (Fig. 43), may serve as an example. The figures on the map present the algal biomass in g/m2. In the outer part
. Biology of the seas of the Marine biology -- Soviet Union; Hydrology -- Soviet Union. 108 BIOLOGY OF THE SEAS OF THE Table 40 Average biomass, kg/m2 Species Western Murman Craggy cliffs Rocky shale Gulmar fjord (Sweden) (Gislen, 1930) Ascophyllum nodosum Fucus vesiculosus 160 16-5 8-8 100 160 90 The distribution of macrophytes on the sands and mud of the Murman littoral is quite different. One of the small bights of the Kola Inlet, 220 m long and 100 to 120 m wide (Fig. 43), may serve as an example. The figures on the map present the algal biomass in g/m2. In the outer part of the tidal range the brown algae are preponderant, Dictyosiphon fimiculaceus, D. mesogloja, Stictyosiphon torilis and a few species of Pilavella and Fucus. Nearer the shore the green algae are preponderant, Monostroma fuscum, Cladophora fracta, CI. gracilis and different species of Enteromorpha. The biomass decreases sharply with the distance from the shore; moreover it is considerably in- ferior to the algal biomass on craggy and rocky floors. At the inner part of the beach at low tide it is usually no more than 500 g/m2, while at the outer one it reaches 3 kg/m2. The whole biomass of the vegetative cover of this littoral is about 4-5 tons and on the average about 200 g/m2. M. Kireeva and T. Shchapova (1937) have noted an interesting relation- ship between the algal growth and some animal organisms inhabiting the same section of the littoral. Sections with a large algal biomass have a small mussel biomass and vice versa {Table 41).. Fig. 42. A belt of brown algae Ascophyllum and Fucus on the rock littoral of Murman coast (Gurjanova, Zachs and Ushakov).. 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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