Show r F Believed Cause Couse Of Fish Killing o en enA A blue green blue green algae known mown technically as flos los lias Jas been positively identified as the thc causative factor factor fac fac- tor in the current fish kill taking tak take taking ing place in the Flaming Gorge reservoir The algae has been known to tobe tobe be he associated with fish die offs orrs in the past The Thc algae kills kiUs by the thc release release re re- re lease of or a toxic protein material ma ma- called as it decomposes FISHERIES biologists Indi cake cate that the algae became concentrated in o D number of or back bays bars and coves along the reservoir shoreline as a result of wind and wave action Kills resulted as the thc concentrated concentrated concen concen- material began to decompose de de- de compose Past studies of the algae indicate that enough toxin toxin tox tox- tox I in is released to kill fish even cven where there is an abundance of or dissolved oxygen in the water wa wa- water ter in a matter of or five to six sic I hours THE TilE INCIDENCE of or fungus and bacterial infections found on dead fish in the reservoir is considered as a secondary infection which may have hastened has toned death Department spokesmen indicated indicated indi indi- that in the light of or present present pres pres- ent knowledge nothing could be bc done dono to arrest the current kill PRESENCE of or the Ute algae inthe in inthe inthe the reservoir it was pointed out may be only temporary On the other hand the material material ma ma- may possibly cause die offs to occur on a periodic basis |