Biblioteca Digital

22 resultados para Economic efforts of the recycling in Brazil

em Plymouth Marine Science Electronic Archive (PlyMSEA)

Notes on the structure and mode of action of the "Oval" in the pollack (Gadus pollachius) and mullet (Mugil chelo).

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Hydrographic features of the water in the neighbourhood of Plymouth during the years 1921 and 1922

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The reproductive organs of the herring in relation to growth

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On abnormal conditions of the gills in Mytilus edulis. Part I. On permanent natural reversal of the frontal cilia on the gill filaments of Mytilus edulis

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On abnormal conditions of the gills in Mytilus edulis, Part II. Structural abnormalities, with a note on the methods of division of the mantle cavity in normal individuals

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The hydrogen ion concentration of the muscles in marine animals

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Degeneration and loss of the eye in the amphipod Gammarus chevreuxi Sexton. Part I.

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Rays and skates of Devon and Cornwall. III. The proportions of the sexes in nature and in commercial landings, and their significance to the fishery

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Variations in the white pigment of the eye in Gammarus chevreuxi Sexton with a description of a new genetic type, the "clotted eye"

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Structure and function of the gut in Spadella cephaloptera and Sagitta setosa

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A statistical study of the variation in vertical plankton hauls, with special reference to the loss of the catch with divided hauls

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Contributions to the biology of the mackerel Scomber scombrus L. II. A study of the fishery in the South West of England, with special reference to spawning, feeding, and fishermen's signs

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Spontaneous activity patterns in animal behaviour: the irrigation of the burrow in the polychaetes, Chaetopterus variopedatus Renier and Nereis diversicolor O.F.Muller

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The nature of the pigments in the crowns of sabellid and serpulid polychaetes

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Vertical-Distribution And Seasonal Numerical Abundance Of The Calanidae In Oceanic Waters To The Southwest Of The British-Isles

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