ASSIGNMENT 3 Be sure to follow the Assignment Format Guidelines and include a Title Page, A3 is worth an overall of 4% of your FINAL gnide, Questions & Dataset Download the "Trout Data 1949-2012" Excel file from your A3 Dropbox. Using ecological theory from Boyce et al. (2010). determine the effect of phytoplankton declines on our trout stock by answering the questions below: 1. Beginning in 1949. graph the total anulation size over time. What type of growth is this population experiencing? In a summary paragraph (50s), describe what is happening to the population 2. You will need to go back to the example you chose in PL-Q3 that best explains K as well as think about and understand how a natural population typically behaves to be able to fully answer this question. On a graph what does a natural population reaching K look like relative to a modeled population? Does the modeled population (after 1962) reach K in your figure? What about the natural population (before 1962)? Is there more than one K on the graph? If not, explain why there is only one using your figure and ecological theory. If so, how much is the "new" K larger or smaller than the K before the model? Using concepts you are learning about population dynamics. explain how it is possible to have more than one K. Based on your figure, is the survival of the modeled population (after 1962) in jeopardy? What if it behaved like a real population? Be specific in your explanation and refer to your figure. Tiani we also opened a commercial fishery in 2012 where Guntakes fish Review View File Home Insert Page Layout Formulas Data Help PROTECTED VIEW Be careful-files from the Internet can contain viruses. Unless you need to edit, it's safer to stay in Protected H24 A B D E F G H Table 2.2 Age-class distribution, total population size for Brook Trout (Salvelinus fontinalis) in the Eastern United States from 1949-1962 as well as average survivorship (P) and age-specific fecundity (F) for each age class (x). Data from McFadden (1961) 1 3 261 2 Age Class 3 Year 0 2 4 1949 4471 2036 287 5 1950 3941 2013 304 6 1951 4287 1851 265 7 1952 5033 1763 8 1953 5367 1637 175 9 1954 6325 2035 234 10 1955 4235 2325 383 11 1956 4949 1612 392 12 1957 6703 1796 309 13 1958 5097 2653 355 14 1959 4038 2395 685 15 1960 5057 2217 473 16 1961 2809 2017 409 17 1962 5037 1574 433 18 1963 3106.62 2140.73 102.03 19 1964 4234.98 2170 31 20 1963 363233 1799 86 50.09 21 1966 3002 89 1543.74 88 21 22 1967 281154 1276 23 103 34 1968 2536 36 11949 109 33 24 1969 24641 1077.95 109.16 25 1970 2296 26 1047 24 1073 26 1971 2240-8 97591 1065 27 1972 2128.14 952 34 10412 2e 1973 2079.88 904.46 103.17 29 1974 2000 84 883 95 30 1975 1958 13 850 36 100 211 1976 1900 24 8322 982 32 1977 1862 76 8076 97.16 33 1978 1818 62 791.67 95.67 1979 1786 05 772.91 94.67 35 1980 1761 17 74907 91 44 Trout Data 1945 to 2012 14 13 17 16 13 13 24 32 34 28 68 48 23 39 37.24 8.77 4.63 431 759 8.89 94 9.39 923 9.16 8.95 8.87 8.69 8.6 844 836 Total 6808 6271 6420 7073 7292 8607 6967 7005 8842 8133 7186 7795 5258 7083 7386.61 Projections forward using density-dependent factor 64679 P.-P. (1-[n,/2500) 5486.91 4639.15 4198.7 3849.48 3660.61 3460.19 3332.44 3193.76 3096.46 299.68 2917 18 2839.24 277596 271432 2661 86 26182 53.84 10102 8.23 81 35 1980 1751.17 759.07 36 1981 1723.06 744.25 37 1982 1694.69 732.3 38 1983 1670.47 720.24 39 1984 1646.88 709.95 40 1985 1625.99 699.93 41 1986 1606.05 691.05 42 1987 1587.97 682.57 43 1988 1570.9 674.89 44 1989 1555.2 667.63 45 1990 1540.44 660.96 46 1991 1526.75 654.69 47 1992 1513.9 648.87 48 1993 1501.91 643.41 49 1994 1490.65 638.31 50 1995 1480.11 633.53 51 1996 14702 629.05 52 1997 1460.9 624.84 53 1998 1452.15 620.88 54 1999 1443.91 617.16 55 2000 1436.15 613.66 56 2001 1428.83 610.36 57 2002 1421.93 607.25 58 2003 1415.41 604.32 59 2004 1409.26 601.55 60 2005 1403.44 598.94 61 2006 1397.95 596,46 62 2007 1392.74 594.13 63 2008 1387.82 591.92 64 2009 1383.16 589.82 65 2010 1378.74 587.84 66 2011 1374.56 585.97 67 2012 1370.59 584.19 68 P 0.425 0.175 69 F 0 1.49 0 93.44 92.5 91.47 90.61 89.73 88.96 88.19 87.5 86.84 86.22 85.63 85.09 84.57 84.08 83.62 83.18 82.77 82.38 82.02 81.67 81.34 81.03 80.74 80.46 80.19 79.94 79.7 79.48 79.26 79.06 78.87 78.68 78.51 0.086 5.11 8.14 8.04 7.96 7.87 7.79 7.72 7.65 7.58 7.53 7.47 7.42 7.36 7.32 7.27 7.23 7.19 7.15 7.12 7.09 7.05 7.02 7 6.97 6.94 6.92 6.9 6.87 6.85 6.84 6.82 6.8 6.78 6.77 0 14.07 2611.82 2567.85 2526.42 2489.19 2454.35 2422.6 2392.94 2365.62 2340.16 2316.52 2294.45 2273.89 2254.66 2236.67 2219.81 2204.01 2189.17 2175.24 2162.14 2149.79 2138.17 2127.22 2116.89 2107.13 2097.92 2089.22 2080.98 2073.2 2065.84 2058.86 2052 25 2045.99 2040.06
