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About Medford mail tribune. (Medford, Or.) 1909-1989 | View Entire Issue (Dec. 8, 1960)
THURSDAY. DECEMBER 8. 1960 8 C MEDFORD MAIL TRIBUNE. MEDFORD, ORE. The Rogue River Fisheries interest io Wcairinni - Water Fishiimcs Docreosio Shortage of Fish, Fishing At Times Noted in Valley (Editor's note: This is the sixth in a series of articles on the Rogue river fishery and its management. To day's article on warm-water game fish explains the need for these fish, general lo cations that are available, and their important place in a good management program.) by COLE M. RIVERS Fisheries Agent State Game Commission Warm-water fish, or spiny- rays, is a term used to de- -ribp the eroup of pan and pond fish made up of bass, crap pie (p r o n- n o u n c e d crop-ee), blue- gill, pumpkin- seed, sunfish perch, , and catfish. Inter est in and use of these fish Cole Rivers by sport fishermen and pond owners are increasing. With the present-day prob lem of furnishing enough fishing in proper plnces, spiny- rnys are valuable. These fish can serve more anglers and produce more fish per unit of water than trout. Where trout and salmon must have cold waters, so must the spiny-rays have warm and quiet waters. Neither group can thrive abundantly in the other's hab itat. Large increases in the num ber of fishermen in the 'e valley during the past decade have created a shortage of fish and fishing water at cer tain times of the year. The trout lakes are producing maximum quantities of fish, but they cannot supply all the demand for fishing.' One of the solutions to proper dis tribution of anglers and to fulfill individual preferences Is to develop more spiny-ray waters in the basin, Old Expression An old expression frequent ly used by fishery workers is that a warm-water fishery cannot be overfished. Gen erally, this Is true because heavy fishing pressure results in a rapid turn-over of the fish population. The more fish removed, the more productive the remaining fish become. A general danger exists with anglers not being able to harvest sufficient numbers each year to prevent these fish crowding themselves out of house and home. Stunting is common and then few fish over 3 or 4 inches In length can ,be found. Largcmouth bass, bluegills, and catfish have been estab lished in the ponds on the Camp White management area, and good fishing has become available there. The backwater slough areas above Gold Ray dam are popular haunts for hundrcs of anglers each year. Many anglers en joyed Emigrant reservoir for warm-water fishing, and they will do so again upon com pletion of the Talent project. Most Important Water Hyatt reservoir is the most important body of water for warm-water fishing in the Rogue area. It was drawn down this fall to Install the screen in the outlet under the provisions of the Talent pro ect. Because of a heavy popu lation of small crappics and sunfish, the game commission was going to treat the reser voir at the low water stage so that a balanced population of bluegills, largcmouth bass, and catfish could be estab lished. To make the necessary screen installation, the Talent Irrigation district was re quired to draw all the water from the reservoir, and the treatment project was not necessary. Under the operation sched ule of the Talent project Hyatt reservoir will not be used excessively except on extremely dry years. Even though crappics are a highly desirable and preferred fish under the new operation it is doubtful that these fish could be kept from becoming over ..vded. Their rate of reproduction couldn't begin to be controlled by largcmouth bass and anglers. Relatively Stabilised Some people believe that fishing will never be good again at Hyatt reservoir with out crappies. Others believe bluegills to be far superior to crappies in their ability to provide recreation for an glers of all age groups. The fact remains that crappies in Hyatt with its relatively stabilized surface levels will overpopulate the lake, be come stunted, and furnish lit-, TAKING IT EASY-A family group "lakes It easy" on the banks of Hyatt reservoir while fishing for warm-water game fish. Hyatt lake is considered one of the most aesir able locations in Jackson county for warm-water game fish. Estimated Age of Earth Figured at 4.6 Billion Years tie fishing for anyone. There is a much better chance for a good fishery with the black bass-bluegill-catfish combina tion. Because several years will be required for new stocks of bluegills and bass to be come established, trout will be planted to furnish some angling through this waiting period. The spiny-rays will eventually crowd them out, and a productive and enjoy able warm-water fishery will be available once more. Many private landowners use their irrigation reservoirs or pump sunvs for spiny rays. Some of these impound ments become very produc tive fish ponds when stocked with proper numbers of the right kinds of fish. Usuolly, these ponds are overstocked to begin with, or they are not fished heavily enough to keep tile population from get ting out of control. From Commercial Ponds In Oregon, the game co n mission does not supply fish for private ponds. Slocks must be obtained from com mercial ponds or from some other pond owner. A trans portation permit is required to move fish from one body of water to another, and It may be obtained from the commission. It is important to the pond owner to keep his fish from escaping and even more im portant to the state's manage ment of the total game fish resource that his fish not be promiscuously broadcast to waters in which they might be undesirable. Fishery agents check the security of ponds for their ability to hold warm-water fish before transportation per mits are issued. Advice on pond construction and man agement is available from the commission at any time. The game commission is devoting more attention to warm-water fishery develop ments in the Rogue valley. This program offers an oppor tunity to supplement the trout, salmon, and steclhead fisheries which already re ceive heavy fishing pressures. Expanded facilities could sup ply fishing for a greater num ber of people over a larger part of the year. Lake Development Most of the trout and spiny- ray lakes in the Rogue basin are located in Jackson coun ty. Because of the need to reduce the angling pressure on downstream migrant steel head in the middle section of the Rogue, much Interest has been directed to the develop ment of reservoirs in Josa phine county. The Josephine county court, through its park board, is building a 157-surface-acre reservoir on McMullcn creek, tributary to Deer creek, near Salem, This reservoir .-'.11 serve multi-purpose recrea tion with fishing receiving highest priority. Spiny-rays will be stocked by the co.n mission to produce an esti mated minimum of 5,500 an gler days of warm-water fish ing per year. Depending upon the pub lic's acceptance and use of the project, that figure could be increased to 10,000 angler days per year. This project is an excellent example of progressive and joperative development to meet the needs for more fishing facil ities. More of these projects will be needed in the future. Chicago-The average boss in Chicago vacations pretty high on the hog. A survey by the Chicago As sociation of Commerce and In dustry says 50 per cent of the executives spend $500 to $1,500 and the rest blow as much as $5,000 for their good times. Production Boost Seen During Next 10 Years in U.S. Corvallis A 50 per cent boost in production of goods and services in the United States during the next 10 years appears probable in light of labor manpower trends, reports an Oregon State college economist. More women and young workers entering the labor force in the 1960's will play major part in swelling the manpower potential, accord ing to Mrs. Elvera Horrell, OSC extension agricultural economist. The report is based on a re cent manpower review by the U. S. Department of labor. The study showed that em ployment in service industries will grow faster than in indus tries producing goods. Above average employment growth was predicted for construc tion, finance, insurance, eal estate, trade, and other services. Manufacturing jobs are ex pected to hold their present employment ratio while trans portation, public utilities, and mining are likely to lag be hind average employment growth. Farm jobs will con tinue to decline. Job Increase While population is expect ed to increase 15 per cent by 1S70, the total number of h ...... fca UNDER CONSTRUCTION-McMullen creek reservoir near Selma is being built by the Josephine county court in cooperation with its parks department. The 156-acre lake will be used for warm water fishing and many other recreational activities. available jobs and workers is forecast to increase 20 per cent. The number of women workers should increase at nearly twice the rate for men. By 1970, two out of every five women between teen-age years and 65 are likely to be in the labor force. It is also anticipated that three million new young workers will enter the labor force each year by the late 1960s, compared to about two million a year now. With output of goods and services outstripping popula tion growth, the study pre dicts that the level of living will improve by about one fourth by 1970. The review of manpower potential and output is based on three major assumptions: that the level of economic activity of the past 15 years continues, absence of war or other events that would sub stantially change economic growth, and continuation of the same rate of technological and scientific advances. Redwood City, Calif.-San Mateo County Deputy Dan Coslett was puzzled at the way traffic seemed to be moving faster than it should. He stopped three obvious speeders, but in each case the driver vehemently denied ex ceeding the limit. Coslett de cided to check his speedom eter with that of a Highway Patrol car. Sure enough, when the pa trol car was going 65 miles an hour, Coslett's car regis-- New York-(Sclentif ic Amer ican Feature) - Recent Im provements in the technique of dating ancient materials by their radioactivity have con firmed earlier estimates that the earth is about 4.6 billion years old, according to John H. Reynolds, assistant pro fessor of physics at the Uni versity of California. Recent counts of the few atoms of noble gases - helium, argon, neon, krypton and xenon - that are trapped In the crystal lattices of meteor- itlc stone and iron, says Dr, Reynolds, "have supported the results of previous methods used for measuring the inter val that separates the present from the epoch when minerals of the earth s crust were formed. The evidence suggests that the cold planetary bodies of the solar system all crystal lized at about the same time: some 4.5 or 4.6 billion years ago. Breakup Dated "The new technique also dates the more recent break up into meteorites of some of the once massive bodies of the solar system and provides clues to the life histories of these fragments. One of the gas 'clocks' that ran down and stopped at the very dawn of time has made it possible to reach into the twilight of cos mology and measurg the full age of tile solar system. "The uranium clock was one of the first fruits of the discovery of radioactivity. As early as 1907 workers in the Cavendish Laboratory of the University of Cambridge rec ognized that the decay of ura nium to helium offered a way to measure the age of rocks. Natural uranium consists of two different isotopes that de cay into helium at different rates. The helium-to-uranium ratio in a rock yields, there fore, a measurement of time, although the ratio must be qualified by the realization that the helium tends to leak away. Fortunately the decay of each uranium isotope also yields a different isotope of lead, These lead-to-urantum and lead-to-lead ratios He be hind most of the readings of the uranium clock. "Interest in the hellum-to- uranlum ratio rose sharply about a decade ago when the study of a number of iron meteorites indicated ages ranging from about one mil lion to 7.6 billion years. The upper figure posed a paradox; it was more than twice the then estimated age of the so lar system. There was too much helium In the meteorites relative to uranium. It was then suggested that the excess might have evolved from the breakdown of iron from cos mic ray bombardment. If this were the case, the excess heli um would turn out to be part ly helium of mass 3 rather than only that of mass 4 which terminates the decay of urani um. Examination of the gas soon confirmed this supposi tion. In consequence of this finding, other rare gases-each the product of radioactive de cay - have been examined. All support the initial findings. Reaches Into Time "The iodine-xenon clock is specially interesting because it reaches back Into the time when the elements themselves were formed. This 'clock' Is not yet fully calibrated. Past experience with other impor tant radioactive clocks has shown that they become more reliable as experimental tech niques improve. The iodine xenon clock should ultimately provide a reliable time-scale for events which took place at about the time the solar system was formed. It is clear, however, that the time inter val between element forma tion and the formation oi,the minerals in meteorites Is rela tively short. Otherwise the io dine clock would have com pletely run down before the minerals were formed. (No xenon wou?d now be found in meteorites.) This completely rules out the possibility that billions of years intervened between the formation of the elements of the solar system and the time its planetary bodies were formed." JjcLSb-, 100 SILVER DOLLAR STAMPS liE-SiiStXLJS EXTRA BONUS IF YOU ORDER YOUR llffP CTTOllffi CHRISTMAS HAM or TURKEY BEFORE Dec. 17 fS&J From Lynn Owen at Eastside Market akiA,l I If fll RH J(fl THURSDAY, FRIDAY, 1 A jrAZ&rkj flf I V Li Va SATURDAY Featuring for Christmas rJr&St Im kill IV SPECIALS SWIFT'S BUTTERBALL FRESH FROSTED TURKEYS A S"j r """" , NEBERGALL'S FANCY HAMS . 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