| Spring Survey | Fall Survey | ||||||||||||||||||
| Age | Year | n | Numerical Index | Biomass Index | Age | Year | n | Numerical Index | Biomass Index | ||||||||||
| LCI | Index | UCI | LCI | Index | UCI | LCI | Index | UCI | LCI | Index | UCI | ||||||||
| All | 2007 | All | 2007 | 150 | 0.56 | 0.78 | 1.03 | 0.16 | 0.26 | 0.36 | |||||||||
| 2008 | 44 | 1.09 | 1.62 | 2.27 | 0.73 | 1.09 | 1.53 | 2008 | 150 | 0.32 | 0.46 | 0.61 | 0.07 | 0.14 | 0.21 | ||||
| 2009 | 47 | 1.37 | 2.02 | 2.84 | 0.54 | 0.81 | 1.12 | 2009 | 160 | 0.38 | 0.57 | 0.78 | 0.13 | 0.21 | 0.31 | ||||
| 2010 | 43 | 0.84 | 1.28 | 1.82 | 0.51 | 0.78 | 1.10 | 2010 | 150 | 0.24 | 0.36 | 0.48 | 0.10 | 0.16 | 0.23 | ||||
| 2011 | 43 | 1.25 | 1.78 | 2.43 | 0.54 | 0.83 | 1.17 | 2011 | 150 | 0.51 | 0.67 | 0.84 | 0.17 | 0.24 | 0.32 | ||||
| 2012 | 43 | 2.34 | 3.12 | 4.08 | 0.67 | 0.92 | 1.20 | 2012 | 150 | 0.76 | 1.05 | 1.38 | 0.23 | 0.35 | 0.48 | ||||
| 2013 | 43 | 3.05 | 4.62 | 6.78 | 1.18 | 1.70 | 2.35 | 2013 | 150 | 0.60 | 0.82 | 1.06 | 0.25 | 0.37 | 0.50 | ||||
| 2014 | 43 | 3.51 | 5.07 | 7.16 | 1.87 | 2.65 | 3.64 | 2014 | 150 | 0.46 | 0.65 | 0.87 | 0.20 | 0.30 | 0.41 | ||||
| 2015 | 43 | 2.15 | 3.29 | 4.85 | 1.45 | 2.22 | 3.24 | 2015 | 150 | 0.36 | 0.49 | 0.63 | 0.20 | 0.29 | 0.38 | ||||
| 2016 | 43 | 4.54 | 6.50 | 9.15 | 2.68 | 3.80 | 5.25 | 2016 | 150 | 0.46 | 0.63 | 0.83 | 0.22 | 0.30 | 0.39 | ||||
| 2017 | 43 | 1.80 | 2.58 | 3.58 | 0.84 | 1.17 | 1.56 | 2017 | 150 | 0.80 | 1.03 | 1.30 | 0.28 | 0.38 | 0.49 | ||||
| 2018 | 43 | 2.56 | 3.83 | 5.55 | 1.61 | 2.35 | 3.30 | 2018 | 150 | 0.54 | 0.75 | 1.00 | 0.22 | 0.34 | 0.48 | ||||
| 2019 | 43 | 2.06 | 3.33 | 5.11 | 1.18 | 1.90 | 2.85 | 2019 | 150 | 0.78 | 1.04 | 1.34 | 0.24 | 0.36 | 0.49 | ||||
| 2020 | 2020 | 150 | 0.56 | 0.74 | 0.94 | 0.19 | 0.27 | 0.36 | |||||||||||
| 2021 | 43 | 1.89 | 2.74 | 3.84 | 0.89 | 1.38 | 2.01 | 2021 | 150 | 0.57 | 0.81 | 1.08 | 0.16 | 0.24 | 0.33 | ||||
| 2022 | 43 | 1.91 | 3.15 | 4.91 | 1.23 | 1.97 | 2.97 | 2022 | 150 | 0.82 | 1.07 | 1.35 | 0.20 | 0.28 | 0.37 | ||||
| 2023 | 2023 | ||||||||||||||||||
| 2024 | 2024 | ||||||||||||||||||
| 2025 | 2025 | ||||||||||||||||||
| 0 | 2007 | 0 | 2007 | 150 | 0.10 | 0.18 | 0.27 | 0.01 | 0.03 | 0.04 | |||||||||
| 2008 | 44 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 2008 | 150 | 0.08 | 0.14 | 0.20 | 0.01 | 0.01 | 0.02 | ||||
| 2009 | 47 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 2009 | 160 | 0.22 | 0.34 | 0.48 | 0.03 | 0.06 | 0.10 | ||||
| 2010 | 43 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 2010 | 150 | 0.04 | 0.09 | 0.15 | 0.00 | 0.01 | 0.03 | ||||
| 2011 | 43 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 2011 | 150 | 0.16 | 0.24 | 0.33 | 0.01 | 0.02 | 0.03 | ||||
| 2012 | 43 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 2012 | 150 | 0.08 | 0.14 | 0.21 | 0.00 | 0.02 | 0.04 | ||||
| 2013 | 43 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 2013 | 150 | 0.08 | 0.16 | 0.24 | 0.00 | 0.01 | 0.01 | ||||
| 2014 | 43 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 2014 | 150 | 0.06 | 0.11 | 0.16 | 0.00 | 0.00 | 0.00 | ||||
| 2015 | 43 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 2015 | 150 | 0.06 | 0.10 | 0.14 | 0.00 | 0.00 | 0.00 | ||||
| 2016 | 43 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 2016 | 150 | 0.00 | 0.03 | 0.06 | 0.00 | 0.00 | 0.00 | ||||
| 2017 | 43 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 2017 | 150 | 0.02 | 0.05 | 0.08 | 0.00 | 0.00 | 0.00 | ||||
| 2018 | 43 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 2018 | 150 | 0.03 | 0.08 | 0.13 | 0.00 | 0.00 | 0.00 | ||||
| 2019 | 43 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 2019 | 150 | 0.10 | 0.17 | 0.25 | 0.00 | 0.01 | 0.01 | ||||
| 2020 | 2020 | 150 | 0.04 | 0.09 | 0.13 | 0.00 | 0.01 | 0.02 | |||||||||||
| 2021 | 43 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 2021 | 150 | 0.06 | 0.12 | 0.19 | 0.00 | 0.01 | 0.02 | ||||
| 2022 | 43 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 2022 | 150 | 0.09 | 0.16 | 0.24 | 0.00 | 0.01 | 0.02 | ||||
| 2023 | 2023 | ||||||||||||||||||
| 2024 | 2024 | ||||||||||||||||||
| 2025 | 2025 | ||||||||||||||||||
| 1 | 2007 | 1 | 2007 | 150 | 0.29 | 0.41 | 0.55 | 0.06 | 0.09 | 0.12 | |||||||||
| 2008 | 44 | 0.07 | 0.20 | 0.35 | 0.01 | 0.03 | 0.05 | 2008 | 150 | 0.09 | 0.16 | 0.23 | 0.02 | 0.03 | 0.04 | ||||
| 2009 | 47 | 0.32 | 0.60 | 0.95 | 0.02 | 0.05 | 0.08 | 2009 | 160 | 0.08 | 0.18 | 0.28 | 0.02 | 0.06 | 0.10 | ||||
| 2010 | 43 | 0.04 | 0.11 | 0.18 | 0.00 | 0.01 | 0.02 | 2010 | 150 | 0.06 | 0.12 | 0.18 | 0.01 | 0.02 | 0.04 | ||||
| 2011 | 43 | 0.10 | 0.23 | 0.38 | 0.01 | 0.03 | 0.05 | 2011 | 150 | 0.13 | 0.21 | 0.28 | 0.02 | 0.04 | 0.06 | ||||
| 2012 | 43 | 0.64 | 0.96 | 1.34 | 0.04 | 0.06 | 0.08 | 2012 | 150 | 0.28 | 0.46 | 0.66 | 0.03 | 0.10 | 0.17 | ||||
| 2013 | 43 | 0.19 | 0.42 | 0.69 | 0.02 | 0.05 | 0.08 | 2013 | 150 | 0.12 | 0.22 | 0.33 | 0.02 | 0.07 | 0.11 | ||||
| 2014 | 43 | 0.00 | 0.05 | 0.11 | 0.00 | 0.00 | 0.00 | 2014 | 150 | 0.07 | 0.15 | 0.23 | 0.01 | 0.03 | 0.05 | ||||
| 2015 | 43 | 0.00 | 0.03 | 0.08 | 0.00 | 0.00 | 0.00 | 2015 | 150 | 0.05 | 0.10 | 0.15 | 0.01 | 0.02 | 0.03 | ||||
| 2016 | 43 | 0.11 | 0.23 | 0.37 | 0.00 | 0.04 | 0.07 | 2016 | 150 | 0.19 | 0.31 | 0.44 | 0.03 | 0.05 | 0.08 | ||||
| 2017 | 43 | 0.00 | 0.01 | 0.04 | 0.00 | 0.00 | 0.00 | 2017 | 150 | 0.35 | 0.50 | 0.67 | 0.07 | 0.11 | 0.15 | ||||
| 2018 | 43 | 0.00 | 0.02 | 0.05 | 0.00 | 0.00 | 0.00 | 2018 | 150 | 0.14 | 0.23 | 0.33 | 0.02 | 0.05 | 0.07 | ||||
| 2019 | 43 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 2019 | 150 | 0.26 | 0.39 | 0.54 | 0.02 | 0.05 | 0.08 | ||||
| 2020 | 2020 | 150 | 0.29 | 0.41 | 0.55 | 0.04 | 0.07 | 0.09 | |||||||||||
| 2021 | 43 | 0.00 | 0.05 | 0.11 | 0.00 | 0.00 | 0.01 | 2021 | 150 | 0.27 | 0.43 | 0.61 | 0.04 | 0.08 | 0.12 | ||||
| 2022 | 43 | 0.02 | 0.08 | 0.16 | 0.00 | 0.02 | 0.04 | 2022 | 150 | 0.52 | 0.69 | 0.89 | 0.08 | 0.12 | 0.16 | ||||
| 2023 | 2023 | ||||||||||||||||||
| 2024 | 2024 | ||||||||||||||||||
| 2025 | 2025 | ||||||||||||||||||
| 2 | 2007 | 2 | 2007 | 150 | 0.14 | 0.23 | 0.33 | 0.04 | 0.09 | 0.13 | |||||||||
| 2008 | 44 | 0.20 | 0.34 | 0.51 | 0.07 | 0.13 | 0.19 | 2008 | 150 | 0.06 | 0.10 | 0.15 | 0.01 | 0.03 | 0.04 | ||||
| 2009 | 47 | 0.28 | 0.50 | 0.75 | 0.07 | 0.14 | 0.21 | 2009 | 160 | 0.06 | 0.16 | 0.26 | 0.03 | 0.08 | 0.13 | ||||
| 2010 | 43 | 0.12 | 0.25 | 0.38 | 0.04 | 0.08 | 0.12 | 2010 | 150 | 0.02 | 0.05 | 0.09 | 0.01 | 0.02 | 0.03 | ||||
| 2011 | 43 | 0.16 | 0.31 | 0.49 | 0.03 | 0.08 | 0.13 | 2011 | 150 | 0.04 | 0.09 | 0.14 | 0.01 | 0.03 | 0.05 | ||||
| 2012 | 43 | 0.68 | 1.02 | 1.42 | 0.19 | 0.30 | 0.43 | 2012 | 150 | 0.24 | 0.39 | 0.55 | 0.03 | 0.09 | 0.16 | ||||
| 2013 | 43 | 1.41 | 2.35 | 3.66 | 0.29 | 0.51 | 0.77 | 2013 | 150 | 0.16 | 0.29 | 0.44 | 0.07 | 0.15 | 0.24 | ||||
| 2014 | 43 | 0.74 | 1.21 | 1.80 | 0.23 | 0.41 | 0.62 | 2014 | 150 | 0.07 | 0.13 | 0.19 | 0.03 | 0.07 | 0.10 | ||||
| 2015 | 43 | 0.03 | 0.20 | 0.40 | 0.00 | 0.06 | 0.14 | 2015 | 150 | 0.06 | 0.10 | 0.15 | 0.03 | 0.06 | 0.09 | ||||
| 2016 | 43 | 0.73 | 1.25 | 1.93 | 0.26 | 0.45 | 0.67 | 2016 | 150 | 0.01 | 0.04 | 0.08 | 0.00 | 0.02 | 0.03 | ||||
| 2017 | 43 | 0.73 | 1.16 | 1.70 | 0.14 | 0.23 | 0.34 | 2017 | 150 | 0.13 | 0.21 | 0.29 | 0.04 | 0.07 | 0.11 | ||||
| 2018 | 43 | 0.42 | 0.79 | 1.26 | 0.13 | 0.27 | 0.43 | 2018 | 150 | 0.11 | 0.19 | 0.28 | 0.04 | 0.07 | 0.11 | ||||
| 2019 | 43 | 0.20 | 0.39 | 0.61 | 0.05 | 0.11 | 0.16 | 2019 | 150 | 0.02 | 0.08 | 0.14 | 0.00 | 0.03 | 0.06 | ||||
| 2020 | 2020 | 150 | 0.12 | 0.19 | 0.26 | 0.04 | 0.07 | 0.10 | |||||||||||
| 2021 | 43 | 0.38 | 0.66 | 0.99 | 0.08 | 0.15 | 0.22 | 2021 | 150 | 0.10 | 0.19 | 0.28 | 0.02 | 0.06 | 0.09 | ||||
| 2022 | 43 | 0.33 | 0.61 | 0.95 | 0.10 | 0.22 | 0.35 | 2022 | 150 | 0.12 | 0.21 | 0.31 | 0.03 | 0.07 | 0.10 | ||||
| 2023 | 2023 | ||||||||||||||||||
| 2024 | 2024 | ||||||||||||||||||
| 2025 | 2025 | ||||||||||||||||||
| 3 | 2007 | 3 | 2007 | 150 | 0.06 | 0.14 | 0.22 | 0.04 | 0.08 | 0.13 | |||||||||
| 2008 | 44 | 0.32 | 0.58 | 0.88 | 0.17 | 0.31 | 0.47 | 2008 | 150 | 0.00 | 0.05 | 0.10 | 0.00 | 0.04 | 0.08 | ||||
| 2009 | 47 | 0.27 | 0.46 | 0.68 | 0.13 | 0.22 | 0.32 | 2009 | 160 | 0.02 | 0.06 | 0.10 | 0.01 | 0.04 | 0.07 | ||||
| 2010 | 43 | 0.33 | 0.53 | 0.76 | 0.17 | 0.26 | 0.36 | 2010 | 150 | 0.03 | 0.07 | 0.10 | 0.01 | 0.04 | 0.06 | ||||
| 2011 | 43 | 0.22 | 0.42 | 0.64 | 0.11 | 0.23 | 0.35 | 2011 | 150 | 0.02 | 0.06 | 0.12 | 0.01 | 0.05 | 0.08 | ||||
| 2012 | 43 | 0.25 | 0.46 | 0.71 | 0.13 | 0.25 | 0.39 | 2012 | 150 | 0.03 | 0.11 | 0.19 | 0.01 | 0.05 | 0.09 | ||||
| 2013 | 43 | 0.34 | 0.57 | 0.84 | 0.15 | 0.27 | 0.40 | 2013 | 150 | 0.06 | 0.13 | 0.20 | 0.05 | 0.09 | 0.14 | ||||
| 2014 | 43 | 2.23 | 3.41 | 5.02 | 1.06 | 1.64 | 2.39 | 2014 | 150 | 0.18 | 0.29 | 0.41 | 0.12 | 0.20 | 0.29 | ||||
| 2015 | 43 | 0.38 | 0.73 | 1.17 | 0.22 | 0.43 | 0.68 | 2015 | 150 | 0.10 | 0.16 | 0.23 | 0.07 | 0.12 | 0.17 | ||||
| 2016 | 43 | 0.85 | 1.32 | 1.92 | 0.52 | 0.82 | 1.18 | 2016 | 150 | 0.03 | 0.07 | 0.11 | 0.02 | 0.05 | 0.07 | ||||
| 2017 | 43 | 0.28 | 0.52 | 0.80 | 0.13 | 0.24 | 0.36 | 2017 | 150 | 0.02 | 0.07 | 0.11 | 0.01 | 0.03 | 0.06 | ||||
| 2018 | 43 | 1.20 | 1.85 | 2.68 | 0.55 | 0.84 | 1.19 | 2018 | 150 | 0.13 | 0.22 | 0.31 | 0.07 | 0.12 | 0.18 | ||||
| 2019 | 43 | 0.80 | 1.37 | 2.13 | 0.34 | 0.63 | 0.98 | 2019 | 150 | 0.06 | 0.13 | 0.21 | 0.03 | 0.08 | 0.13 | ||||
| 2020 | 2020 | 150 | 0.02 | 0.05 | 0.08 | 0.01 | 0.03 | 0.05 | |||||||||||
| 2021 | 43 | 0.46 | 0.88 | 1.43 | 0.13 | 0.36 | 0.65 | 2021 | 150 | 0.05 | 0.12 | 0.19 | 0.02 | 0.05 | 0.08 | ||||
| 2022 | 43 | 0.62 | 1.10 | 1.72 | 0.30 | 0.53 | 0.81 | 2022 | 150 | 0.10 | 0.19 | 0.28 | 0.04 | 0.08 | 0.12 | ||||
| 2023 | 2023 | ||||||||||||||||||
| 2024 | 2024 | ||||||||||||||||||
| 2025 | 2025 | ||||||||||||||||||
| 4+ | 2007 | 4+ | 2007 | 150 | 0.01 | 0.03 | 0.05 | 0.00 | 0.02 | 0.04 | |||||||||
| 2008 | 44 | 0.24 | 0.42 | 0.62 | 0.22 | 0.37 | 0.55 | 2008 | 150 | 0.00 | 0.03 | 0.08 | 0.00 | 0.03 | 0.08 | ||||
| 2009 | 47 | 0.13 | 0.26 | 0.42 | 0.12 | 0.25 | 0.40 | 2009 | 160 | 0.00 | 0.02 | 0.04 | 0.00 | 0.03 | 0.06 | ||||
| 2010 | 43 | 0.23 | 0.42 | 0.64 | 0.16 | 0.31 | 0.47 | 2010 | 150 | 0.02 | 0.06 | 0.09 | 0.02 | 0.06 | 0.10 | ||||
| 2011 | 43 | 0.24 | 0.45 | 0.69 | 0.17 | 0.33 | 0.51 | 2011 | 150 | 0.05 | 0.10 | 0.15 | 0.05 | 0.09 | 0.13 | ||||
| 2012 | 43 | 0.19 | 0.36 | 0.56 | 0.13 | 0.26 | 0.40 | 2012 | 150 | 0.05 | 0.10 | 0.15 | 0.04 | 0.08 | 0.13 | ||||
| 2013 | 43 | 0.47 | 0.73 | 1.03 | 0.32 | 0.52 | 0.75 | 2013 | 150 | 0.09 | 0.16 | 0.25 | 0.07 | 0.14 | 0.21 | ||||
| 2014 | 43 | 0.54 | 0.86 | 1.24 | 0.35 | 0.61 | 0.93 | 2014 | 150 | 0.02 | 0.06 | 0.10 | 0.02 | 0.05 | 0.09 | ||||
| 2015 | 43 | 1.17 | 1.99 | 3.11 | 0.85 | 1.42 | 2.18 | 2015 | 150 | 0.15 | 0.23 | 0.32 | 0.12 | 0.19 | 0.26 | ||||
| 2016 | 43 | 1.55 | 2.45 | 3.68 | 1.18 | 1.86 | 2.75 | 2016 | 150 | 0.08 | 0.14 | 0.20 | 0.07 | 0.12 | 0.18 | ||||
| 2017 | 43 | 0.14 | 0.32 | 0.52 | 0.08 | 0.19 | 0.32 | 2017 | 150 | 0.03 | 0.10 | 0.18 | 0.03 | 0.09 | 0.17 | ||||
| 2018 | 43 | 0.73 | 1.21 | 1.83 | 0.49 | 0.87 | 1.36 | 2018 | 150 | 0.09 | 0.19 | 0.30 | 0.05 | 0.14 | 0.24 | ||||
| 2019 | 43 | 0.95 | 1.68 | 2.69 | 0.54 | 1.03 | 1.67 | 2019 | 150 | 0.14 | 0.25 | 0.36 | 0.11 | 0.19 | 0.28 | ||||
| 2020 | 2020 | 150 | 0.08 | 0.15 | 0.22 | 0.05 | 0.10 | 0.16 | |||||||||||
| 2021 | 43 | 0.00 | 0.32 | 0.76 | 0.00 | 0.22 | 0.58 | 2021 | 150 | 0.00 | 0.03 | 0.06 | 0.00 | 0.02 | 0.04 | ||||
| 2022 | 43 | 0.90 | 1.59 | 2.54 | 0.55 | 1.00 | 1.57 | 2022 | 150 | 0.04 | 0.08 | 0.12 | 0.02 | 0.04 | 0.07 | ||||
| 2023 | 2023 | ||||||||||||||||||
| 2024 | 2024 | ||||||||||||||||||
| 2025 | 2025 | ||||||||||||||||||