Arizona Republic from Phoenix, Arizona • Page 47

2-C The Arizona Republic Phoenix, Suadty, Jan. 3, mi ALL EDITIONS Study shows power planthotwater runoff kills plant life disappearance of valuable plants and animals. water unpolluted by overheat ing. Marine biologists raise an other ominous question. Will the change in flora caused by the higher temperatures produce an increase in food poisoning in man? The big, green seaweeds and turtle grass killed by hot water were replaced by a mat of blue green algae small, slimy plants that form a scum on fresh water ponds and slippery, fuzzy coatings on rocks, mud and wharves contain a toxin that is taken in by small plant eating fish.

These, in turn, are eaten by snappers, groupers and jacks, which pass the poison on to man. In certain cases, marine life can benefit from increased warmth. This has been demonstrated by sea farms in which heated water has been used to increase crops of fish, shrimp and edible turtles. But heated water poured indiscriminately into places where a a i life thrives can only result in the Two Convtnient Locations 702 N. Central (Next te Westward He) 252.2112 LOS ARCOS MALL Scottsdalo I McDowell 949-8881 SELL YOUR JZVELS Diamonds, rubles; emerald now bring highest prices in our eS-yeer history.

We'll pay cash or will sell your jewels on a consignment basis. Phone for FREE appraisal. GRUNEWALD ADAMS JEWELERS liltmort Fashion Fork Cimtlbtck at 34th St. fSMUt start dying off when exposed to temperatures between 88 and 91 degrees F. Such plants are essential for the survival of many animals, which find shelter from enemies in the seaweed forests.

The plants are also an important source of food for vegetarian animals, which are in turn eaten by flesh eaters, which are eaten by man. Break a link at the beginning of the food chain, and the consequences are felt at all levels in the marine world. When temperatures rise above 89 degrees baby shrimp cease developing. A rise of three more degrees and stone crabs stop hatching. Temperatures may get this high under natural conditions in the summer, but the point is that creatures may iods of heat, while they succumb to a sustained rise in temperature.

In one 50-acre area off the mouth of a canal discharging heated water at temperatures as high as 104 degrees, vir-tually all larger plants, shrimps, crabs and fish disappeared in the summer, Fish can swim away from unfavorable conditions, but the sluggish invertebrates and immobile plants cannot. In winter, snapper, tarpon, snook, jack and other fish return to the main effluent canal of the Turkey Point plant However, a survey showed that the winter increase in fish did not exceed the summer deficit. Over the entire year, the scientists noted, there are fewer fish in the effluent canals than in nearby along seacoasts. The algae By WILLIAM J. CROMIE Universal Science News "Despite power company claims to the contrary, heated but uncontaminated water discharged from generating plants has been proven to be 'detrimental to plants and ani-'mals.

University of Miami researchers found that hot water discharged into Biscayne Bay by the Florida Power and Light Turkey Point killed seaweeds and invertebrates and caused fish lo disappear. Since conventional and nuclear plants are being built and planned for many cities in the United States to meet the growing demand for power, the results of these studies are vitally important to preserving the environment. Water, heated in the process of condensing steam, is normally discharged from generating plants whether the fuel is oil, coal or nuclear combustion. Power companies have insisted that heated discharges are not harmful to aquatic life and, in some cases, protect it from cold and increase its growth. This is true but only up to a point.

Unless research determines what this point is, and legislation controls the temperatures of the discharges, aquatic life, including important food species, will be destroyed and possibly poisoned in many areas. Field and laboratory tests show that various green seaweeds and turtle grass be able to survive short per HiiiiiiiiiiiiiiiPii ii. i iiTiTI 7 north EXTRA CHARGES REST HOME-NO Semi Private Private Room PHONE viih Room with Bath $250. Mo. $350.

Mo. 944-Z4I3 nu mamm TACK) CD W7 Vfe Aral hsss psves te way to wdter ussrvafeji. In a process called guniting, wet concrete is sprayed from a hose to line the sides of the Tempe Canal north of Baseline Road. This not only prevents the loss of water through seepage, it also stops the growth of weeds which Impede the smooth flow of water. Every year, the Salt River Project dries up its 1,300 miles of canals, laterals and ditches for maintenance work.

The sides and bottoms of canals are paved. Weeds, debris and obstructions are removed to make sure every possible drop of water is delivered to where it is needed. This annual clean-up campaign is expensive but well worth it in terms of the water it saves. Canal maintenance is but one of the Salt River Project's many programs for the conservation of our most vital natural resource, water. mm Lush, Life-like Poly Plants in Attractive Containers "Whoro Water Is Lifo, Evory Drop Counts" A.

SPECIAL POTTED TREES Lemon trees, rose trees, Rhododendron and Mag nolia trees with life-like fruits and blossoms. A whisk atl with a damp cloth Is all they'll ever need to keep II lrV them beautiful. At this 'special price buy seve'rall JUm (aeaV I. Tropical Foliage Plants, all over 5 feet tall 2I.IS C. Flowering Plants and Ferns, 52' to 64' tall lt.lS D.

7-ft. Bamboo Trees, 6 ft. Wisterias, Ti-PIants, 5 'rft. Alaskan Fern Trees and many, many more. J7.9S CANAL DRY-UP Salt River Project canals north of the Salt River will be dried up for construction, canal lining and maintenance beginning at 12:01 A.M., Saturday, January 9, 1971 to 11:59 P.M., Friday, February 5, 1971.

Pumps will be made available where their delivery does not interfere with construction and maintenance. PARK CENTRAL 28 Park Central TOWER PLAZA 3143 E. Thomas Rd. Open Sun. tM EAST CAMELBACK IHBC.Camelback M.

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