Keewenaw Bay Lake Trout

With 9-13

  1. This is a longitudinal catch-curve.
  2. Ages 9-13.
  3. XXX
    1. Z=0.4818402 (CI: 0.3877375,0.575943)
    2. A=38.2354266 (CI: 32.1409544,43.7825496)
    3. S=61.7645734 (CI: 56.2174504,67.8590456)
  4. XXX
    1. Z=0.6215691 (CI: 0.5095251,0.7336132)
    2. A=46.3796477 (CI: 42.0516048,50.7076907)
    3. S=53.6203523 (CI: 49.2923093,49.2923093)
    4. A=1-e-Z

With 8-13

  1. This is a longitudinal catch-curve.
  2. Ages 8-13.
  3. XXX
    1. Z=0.4163626 (CI: 0.3026487,0.5300766)
    2. A=34.0558914 (CI: 26.1141358,41.144013)
    3. S=65.9441086 (CI: 58.855987,73.8858642)
  4. XXX
    1. Z=0.5154979 (CI: 0.391796,0.6391998)
    2. A=40.3263403 (CI: 37.0420358,43.6106449)
    3. S=59.6736597 (CI: 56.3893551,56.3893551)
  5. A=1-e-Z

With 9-14

  1. This is a longitudinal catch-curve.
  2. Ages 9-14.
  3. XXX
    1. Z=0.5649092 (CI: 0.3923675,0.7374509)
    2. A=43.1588249 (CI: 32.4544167,52.1668328)
    3. S=56.8411751 (CI: 47.8331672,67.5455833)
  4. XXX
    1. Z=0.5971726 (CI: 0.5047623,0.6895829)
    2. A=45.046729 (CI: 40.8267929,49.266665)
    3. S=54.953271 (CI: 50.733335,50.733335)
  5. A=1-e-Z

With 8-14

  1. This is a longitudinal catch-curve.
  2. Ages 8-14.
  3. XXX
    1. Z=0.4892748 (CI: 0.3334172,0.6451323)
    2. A=38.6929156 (CI: 28.3528805,47.5406879)
    3. S=61.3070844 (CI: 52.4593121,71.6471195)
  4. XXX
    1. Z=0.5018514 (CI: 0.3897282,0.6139745)
    2. A=39.503386 (CI: 36.2826202,42.7241518)
    3. S=60.496614 (CI: 57.2758482,57.2758482)
  5. A=1-e-Z

R Appendix

d <- data.frame(age=3:14,ct=c(5,18,21,10,45,109,95,63,42,25,13,4)) %>%
  mutate(logct=log(ct))
plot(logct~age,data=d,pch=19)

## With 9-13
cc1 <- catchCurve(ct~age,data=d,ages2use=9:13)
sum1 <- cbind(summary(cc1),confint(cc1))
plot(cc1)
cc1w <- catchCurve(ct~age,data=d,ages2use=9:13,weighted=TRUE)
sum1w <- cbind(summary(cc1w),confint(cc1w))
cr1 <- chapmanRobson(ct~age,data=d,ages2use=9:13)
sum1cr <- cbind(summary(cr1),confint(cr1))
plot(cr1)

## With 8-13
cc2 <- catchCurve(ct~age,data=d,ages2use=8:13)
sum2 <- cbind(summary(cc2),confint(cc2))
plot(cc2)
cc2w <- catchCurve(ct~age,data=d,ages2use=8:13,weighted=TRUE)
sum2w <- cbind(summary(cc2w),confint(cc2w))
cr2 <- chapmanRobson(ct~age,data=d,ages2use=8:13)
sum2cr <- cbind(summary(cr2),confint(cr2))
plot(cr2)

## With 9-14
cc3 <- catchCurve(ct~age,data=d,ages2use=9:14)
sum3 <- cbind(summary(cc3),confint(cc3))
plot(cc3)
cc3w <- catchCurve(ct~age,data=d,ages2use=9:14,weighted=TRUE)
sum3w <- cbind(summary(cc3w),confint(cc3w))
cr3 <- chapmanRobson(ct~age,data=d,ages2use=9:14)
sum3cr <- cbind(summary(cr3),confint(cr3))
plot(cr3)

## With 8-14
cc4 <- catchCurve(ct~age,data=d,ages2use=8:14)
sum4 <- cbind(summary(cc4),confint(cc4))
plot(cc4)
cc4w <- catchCurve(ct~age,data=d,ages2use=8:14,weighted=TRUE)
sum4w <- cbind(summary(cc4w),confint(cc4w))
cr4 <- chapmanRobson(ct~age,data=d,ages2use=8:14)
sum4cr <- cbind(summary(cr4),confint(cr4))
plot(cr4)

Stannard Rock Lake Trout

  1. 1956 year-class.
  2. Shown below.
  age  yr63 yc63  yc54 yc67
1   6 129.0   45    NA  101
2   7 339.0   NA    NA  733
3   8 331.0   NA    NA 1517
4   9 192.0   NA 192.0 1560
5  10  70.0  491  63.0 1031
6  11  16.0  163  39.0  445
7  12   0.5  117   5.0  300
8  13   0.5   18   0.5   NA
9  14   0.5    7   0.5   NA
    1. 1963 Capture Year
      1. Cross-sectional
      2. Ages 8-11
      3. Z=0.965383 (CI: 0.3252889,1.6054772)
      4. A=61.9162705
      5. Z=0.9539016 (CI: 0.7729343,1.1348688)
      6. A=61.5384615
    1. 1963 Year-Class
      1. Longitudinal
      2. Ages 9-12
      3. Z=1.0343492 (CI: 0.6294672,1.4392311)
      4. A=64.4542352
      5. Z=0.9769195 (CI: 0.7810762,1.1727627)
      6. A=62.4018838
    1. 1954 Year-Class
      1. Longitudinal
      2. Ages 9-12
      3. Z=1.1456776 (CI: 0.7332529,1.5581023)
      4. A=68.1991637
      5. Z=1.0478427 (CI: 0.8399815,1.2557039)
      6. A=65.0707291
    1. 1967 Year-Class
      1. Longitudinal
      2. Ages 9-12
      3. Z=0.5789745 (CI: 0.3128332,0.8451158)
      4. A=43.9527174
      5. Z=0.7801439 (CI: 0.5783334,0.9819545)
      6. A=54.1747888