The New Encyclopædia Britannica, Volume 16Encyclopaedia Britannica, 1981 - Encyclopedias and dictionaries |
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Page 54
... fish and derive some estimate of their abundance . Much of the recent increase in yield by world fisheries has come from the discovery of previously little known and unexploited sources of fish . It is also necessary to deter- mine the ...
... fish and derive some estimate of their abundance . Much of the recent increase in yield by world fisheries has come from the discovery of previously little known and unexploited sources of fish . It is also necessary to deter- mine the ...
Page 675
... fish , which has given the period the name the " Age of Fishes , " occurred both in fresh and marine waters . Derivation of carnivorous fish from mud - eating forms occurred early in the period , and the four - footed tetrapods were ...
... fish , which has given the period the name the " Age of Fishes , " occurred both in fresh and marine waters . Derivation of carnivorous fish from mud - eating forms occurred early in the period , and the four - footed tetrapods were ...
Page 814
... fish's well - developed sensitivity to pressure and turbulence and its good sense of smell and taste , largely make up for the weakness of the eyes . The fish are almost blind with respect to the perception of form and movement ...
... fish's well - developed sensitivity to pressure and turbulence and its good sense of smell and taste , largely make up for the weakness of the eyes . The fish are almost blind with respect to the perception of form and movement ...
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