EFFECTS OF HEATED EFFLlJEN!I’S
93
lethal temperatures of tropical algae, too, are only slightly higher than
those of European species (Biebl, 1962). The effects of heated effluents
might therefore be very severe in tropical areas, particularly also since
there would be few species normally occurring elsewhere which would be
adapted to extreme heating and which could serve as replacement
organisms. Arctic species, despite the narrow limits of their environmental temperatures, may live in water as much as 13 to 16 Centigrade
degrees below their death temperatures (Mayer, 1914), so heating in
high latitudes would be expected to have less severe consequences than
in tropical areas.
VI. REFERENCES
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