OCR Text |
Show PROGRAM CONTINUES 4 FOR TROUT PRODUCTION HERE Utah's year-around program of , domestic trout production proceed- I ed on schedule during early No- j vember with reports from the ; Springville and Kamas hatcheries that rainbow are entering their full spawning season. While rainbow under natural conditions spawn in the spring, a selective rearing process carried out over the years has resulted in a fall spawning period for a large portion of the Kamas and Springville Spring-ville brook stocks, M. J. Madsen, superintendent of state fisheries, explained. "This fall spawning steps up our hatchery output considerably," Madsen pointed out, "since it allows al-lows us to practically fill our hatcheries twice a year." He said that a shipment of five million eggs is scheduled to arrive in Utah from Idaho during February. Febru-ary. "By that time the eggs we take now will have been through the hatcheries and the fry will be in rearing ponds, thus making way for the Idaho egg shipment." While there are many factors in the producing of fall rainbow spawners, such as correct water temperatures and constant supervision, super-vision, the biggest job is to select the earliest spawners each year and segregate them. This procedure proced-ure is followed each year until the spawning period is moved up from spring to fall. Madsen also reported that German Ger-man brown trout at the Morgan hatchery had started to spawn. The brown spawns'naturally in the fall and no large-scale attempts have ever been made to change its spawning period, Madsen said. Also coming in are the first eggs from commercial hatcheries, Madsen Mad-sen said. Commercial operators, for the most part, also follow a program of developing fall rainbow rain-bow spawners since it allows them to meet year-around demands for trout. |