Burke. Channel
~.. ~. HSHtRI tS atSu~R&' " . BGA'R~ ~f Cl~llA . .~ ~. - . ' ~ . B\OtOG\b~t ,Sl~l\Q~, .. , - '-. '.'· Sf. Jn1\tiJs.M£WfnU:Rnl~ND .., " ).0 '.;; I" . .' -... ... -.. - . IJI8:8 •••_$ _R_ . 8~~B~ (;P .·' BOA •• ," ' OF" CA -:N ' A:P&-~ " . :- ', ..~:ANJ1SCRIPT REP'O~T . SEItIES ,No. 976 .. .. " • j. _ ' - - . ' • I _I, ' . [ , '<" . ~ .. r, . Drift Card Beiea8e.8 ~ ~n, d .ReeQverielf . , .. , ... ..... • ' -' .0 >' In . '. , -,. 'Burke . Channel - .- \ . i j' , " >.- British ,Columbia, 1 1967 .. ,. 0 • b1 " ~"" 'It • ' .J 1t~1I~ ', Herlinveaq~ . .- , ~. :" . - , ", .BlQ1o.gical S-tat;on, NJlIi.tmo, B.C.; - .. i?~cifl~Qceanogr~phic Group ' . - , ' , ,~ ."~. March 1968 FISHERIES RE8EAR~B BOARD OF ~ANADA MANUSCRIPT REPORT SERIES No. 970 Drift Card Releases and Recoveries • In Burke Channel British Columbia, 1967 by R. H. Herlinveaux Biological Station, Nanaimo, B.C. Pacific Oceanographic Group March 1968 Programmed by The Canadian Committee on Oceanography Drift Card Releases and Recoveries in Burke Channel, British Columbi.a, 1967 by E..H. Herlinveaux INTRODUCTION Burke Channel is the main migratory route of the pink salmon moving into and out of the Bella Coola River system (Figure 1). On their way to the sea, the pink salmon spend approximately twq months (mid~April to mid-June) in the system, during which time a significant and variable mortality occurs. The mortality must be associated partly with environmental factors. among which water movements are considered to be most significant. Water movements may either directly tiansport the fish, or, by altering the salinity distribution, and! or by concentrating or dispersing food organisms, modify their travel. Furthermore , variation in water movements may change the nutrient supply, which in turn will alter production of food necessary for growth and survivaL An extensive 5=year study of the l!spring Qceanographic conditionsl! in the system was terminated in 1967.
[Show full text]