5a 



40 



■P 30 - 



^ 20 



10 - 



1 



In. 



i 



1 



1 



1 



1977 1978 1979 1980 1981 1982 1983 



Figure 20. Annual percents of all S^. aquosus impinged (.<) and trawled (d) 



Harmonic regression techniques were used to model the trawl and 

 Impingement data; windowpane eggs and larvae were not modeled because of 

 their low densities. All models had significant terms for 12-mo cycles 

 (Table 11). Longer (72-mo) and shorter (6- and 4-mo) cycles were also 



•rnltorlnn proijrim,. 



in th- varloot "MI'S 



Itorlnj Stotlo 



odd Ha<l*l 



fiplnq««nt Unit I t • B F-B FCo»( tK 1 "B f S 1 "1 «K )-B FSI nt t« l-B FS I n ( tit 1 • 



1 t-l 1 t-2 J t-* ♦ t-i i t-l9 

 ■plng«««nt Unit I I ■ B F-» FCOIItK l«B FSln(tlt ) -B FSInltH )-B FSlnltK !• 



1 t-l I >-i J t-5 ♦ t-U 



an Z • B -S Sin(tl( )-B CoiltH )-B Slnlt" I* 



Z • B -B SInttK )-B CoXtK )-B Sln(tK 1*8 



12 3 6 



1 t-l I t-2 3 t-2l 

 Cot(tlI ■• 



Col(t« !•» • •« • 0.»J 



t I TI 2 



> • -> * -> • 



I t-l J t-lO J t-U 



I • B •» •CotltK )-B Sln(tH )-» lln(tl< |»B 

 1 12 2 6 3 * ' 



't- VV"""T2'*V"'"l2'**lVr*2V 



I ■ B -» Ca«)t« )-B Jln(t'<.,)-B.Co.(t« l-B 5ln(tK 1«B Co»|tK 1- 



0.>2 IB. 5 393 ^l.T 32 



O.T» 21. ^ J53 23. « 52 



0.34 61.3 1T6 2T4.1 26 



66.3 176 141. 6 26 



36.3 176 11*. « 26 

 •3.1 176 103.6 26 



t 1 " 72 I 



•A • 



♦ 3 



It-l 2't-lO 



77 2 . B -B SInltK ^)-i Co.|tl<.,l-B,Slnl«^l« B.Co.ltK !•« • 



tOl 12 2 12 3 66 61 t-l 



■««n or th« In tr«ntror»«d c«tch«t In » tanpl* D«rlod 



regrottlon co«rricl*nt6 



tla> In da|r« 



contt«nt to uft* for porlod of duration ■ laonthtl 



sutor<9ra<ilan co<rriclM>t> 



r«tldu«1 (pr«dlctod-oh««rv*d) 



cooling HAtvr flow rat* «t Indicated Unit 



nu«b*r of ob»*rvatlon« contributing to the terror 



60.3 176 IB6.2 2* 

 •0.* 176 317.3 26 



36 



