Factor III Guidelines and Originality

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AFS, to the 115th Annual AFS Meeting (published abstract) nd in an MS thesis. A follow -up study was planned in which. whitefish and tropt populations would be manipulated to further clarify relationships. A suitable udy site was not located, and the study was abandoned. Catch - and - Release Angling Regulations M rWP asked White to direct an on -going study on the effects of catch -a nd -r ease angling on a stream cutthroat trout population which ha/been en fishe or 45 years. Two years of catch -and- release angling did not reundan e or average size of cutthroat trout, even though some individual tr ca ht more than 10 times annually. The study provided further evidencv erability of this species to angling. Habitat use data will be valuable tion to instream flow recommendations for this species in other parts of . Important winter habitat use information was also collected. This woresented at the MT Chapter AFS Meeting, (Best Student Paper) at the 11al Meeting AFS, in a technical report (36), and an MS thesis. Growth Interruption s a Means of Mass- marking Hatche Trout: Wyoming Game and Fish De artment asked White to help design a study to evaluate the potential use of growth interruptions as a means of mass - marking hatchery trout. The study appli d Optical Pattern Recognition System technology to "read" marks /nsiv l Five combinations of feeding rates and temperature were tested d eight the following year. Changes in feeding regime and water e effectively altered circuli spacing on treatment trout scales. Marks to accurately predict fish group origin, constituting a simple , efficient, and harmless method of mass - marking trout in a hatchery sults were presented in an MS Thesis, at the Western Division AFS d NAJFM (18). t Large Rivers /Rare Fish Species Sturgeon - Soon after transfer to Montana, White began seeking funds to conduct research on pallid sturgeon and paddlefish in the Missouri and Yellowstone Rivers. In 1992, 1 -year after pallid sturgeon were listed as endangered, FWS funding became available. A Ph.D. student and White are doing research on habitat use and movement of adult pallid and shovelnose sturgeon. The research is in cooperation with Montana Department of Fish, Wildlife and Parks biologists who captured and radio tagged most experimental fish. This is the first in -depth habitat use study of pallid sturgeon in a relatively unaltered riverine environment. Because, pallid sturgeon are rare, the abundant shovelnose sturgeon is being studied to determine if habitat selection is similar enough for this species to be used as a surrogate. A paper was presented at the 124th Annual AFS Meeting in Halifax, Nova Scotia, August 1994 and a PhD Dissertation is being written. 31