MARC Record from Oregon Libraries

LEADER: 02782nam a2200373Ka 4500
001 28955428
003 OCoLC
005 20001026191729.0
008 931007s1993 akuab b s000 0 eng d
040 $aUDK$cUDK$dORE
043 $an-us-ak
049 $aOREU
090 $aSH467$b.F561 no.93-25
090 $aSH467$b.F561 no.93-25
100 1 $aFleming, Douglas F.
245 10 $aStock assessment of humpback whitefish and least cisco in the Chatanika River during 1992 /$cby Douglas F. Fleming.
260 $aAnchorage, Alaska :$bAlaska Dept. of Fish and Game, Division of Sport Fish,$c[1993]
300 $aiv, 27 p. :$bill., map ;$c28 cm.
440 0 $aFishery data series ;$vno. 93-25.
500 $a"Partially financed by the Federal Aid in Sport Fish Restoration Act ... under project F-10-8, job no. R-3-2(e)."
500 $a"August 1993."
504 $aIncludes bibliographical references (p. 23-24).
530 $aAlso issued online.
520 3 $aStock assessment of humpback whitefish Coregonus pidschian and least cisco Coregonus sardinella occurred in a 105 kilometer area of the Chatanika River, near Fairbanks, Alaska during August 1992. Mark-recapture experiments were conducted simultaneously for both species as two electrofishing crews systematically sampled the river during two complete passes, with two pulsed DC electrofishing boats. The investigation was timed to correspond to the upstream spawning migration of both species, and to provide in-season estimates of abundance prior to the onset of a recreational spear fishery. An estimated 20,180 (SE = 1,663) humpback whitefish (^360 millimeters fork length) were present in the study area. The stock was characterized by a high proportion of large humpback whitefish (420 millimeters fork length) with ages 7, 8, and 9 predominating. The continued absence of young humpback whitefish indicates potential recruitment failures to the spawning stock over the next few years. An estimated 86,989 (SE = 9,097) least cisco (290 millimeters fork length) were present in the study area. The stock was distributed almost evenly between all lengths, which ranged from 290 to 427 millimeters fork length, with ages 3, 4, and 6 most abundant. Almost 36% of the assessed stock was age three and although they are not fully recruited, indicates potentially strong recruitment in 1993.
650 0 $aWhitefishes.
650 0 $aLeast cisco.
650 0 $aFishery resources$zAlaska$xChatanika River.
710 1 $aAlaska.$bDivision of Sport Fish.
856 41 $uhttp://www.sf.adfg.state.ak.us/FedAidPDFs/fds93-25.pdf$zConnect to this title online
907 $a.b21091870$bmulti$c-
902 $a070718
998 $b2$c001026$dm$ea$f-$g0
945 $lvge $a28953986$d120009405800$e1$uno.93-25
945 $lngen $e1