# Estimates of per capita sea urchin grazing rates on Clathromorphum nereostratum # PI's: Steneck (Umaine), J. Estes (UCSC), D. Rasher (BLOS) # version: 2019-02-013 # ========================= treatment replicate urchin_diameter_mm urchin_biomass_grams cca_mass_initial_grams cca_mass_final_grams correction_factor corrected_cca_mass_initial_grams amount_grams_consumed amount_mg_consumed amount_mg_consumed_day amount_mg_consumed_d_gram_urchin max_depth_grazed_mm ------------------------- 15 1 16 1.6 6.585 6.455 0.985 6.489 0.034 33.816 3.315 2.138 0.013 15 2 16 1.6 5.698 5.667 0.989 5.636 -0.031 -31.072 -3.046 -1.965 0.013 15 3 15 1.3 7.404 7.095 0.994 7.362 0.267 267.062 26.183 20.483 0.025 15 4 15 1.3 5.801 5.657 0.997 5.786 0.129 128.833 12.631 9.881 0.025 15 5 15 1.3 8.029 7.873 0.988 7.929 0.056 55.933 5.484 4.29 0.013 25 1 25 5.9 7.183 7.008 0.985 7.078 0.07 70.081 6.871 1.166 0.025 25 2 24 5.2 4.269 4.208 0.989 4.222 0.014 14.495 1.421 0.272 0.013 25 3 25 5.9 12.972 12.422 0.994 12.899 0.477 476.523 46.718 7.927 0.038 25 4 24 5.2 6.926 6.698 0.997 6.908 0.21 209.892 20.578 3.945 0.05 25 5 25 5.9 9.427 8.86 0.988 9.31 0.45 449.51 44.07 7.477 0.05 35 1 35 16.1 9.61 9.187 0.985 9.47 0.283 282.631 27.709 1.718 0.038 35 2 33 13.5 4.557 4.434 0.989 4.507 0.073 73.358 7.192 0.532 0.05 35 3 36 17.5 10.192 9.252 0.994 10.134 0.882 882.269 86.497 4.929 0.05 35 4 35 16.1 5.275 4.414 0.997 5.261 0.847 847.208 83.06 5.15 0.075 35 5 33 13.5 9.922 9.151 0.988 9.798 0.647 647.34 63.465 4.692 0.113 45 1 44 32 5.416 4.499 0.985 5.337 0.838 837.891 82.146 2.568 0.125 45 2 46 36.5 5.116 4.818 0.989 5.06 0.242 242.269 23.752 0.65 0.1 45 3 45 34.2 15.44 13.887 0.994 15.353 1.466 1465.543 143.681 4.2 0.2 45 4 46 36.5 7.258 6.861 0.997 7.239 0.378 378.024 37.061 1.014 0.05 45 5 44 32 7.882 6.612 0.988 7.784 1.172 1171.765 114.879 3.592 0.1 55 1 54 59 8.032 7.07 0.985 7.915 0.845 844.68 82.812 1.403 0.088 55 2 54 59 8.95 8.112 0.989 8.853 0.741 740.503 72.598 1.23 0.113 55 3 54 59 12.831 11.496 0.994 12.758 1.262 1262.321 123.757 2.097 0.15 55 4 57 69.4 8.698 7.798 0.997 8.675 0.877 877.259 86.006 1.239 0.038 55 5 57 69.4 11.662 10.442 0.988 11.517 1.075 1074.654 105.358 1.518 0.075 control 1 nd nd 5.477 5.397 0.985 nd nd nd nd nd nd control 2 nd nd 6.793 6.719 0.989 nd nd nd nd nd nd control 3 nd nd 13.947 13.868 0.994 nd nd nd nd nd nd control 4 nd nd 8.797 8.774 0.997 nd nd nd nd nd nd control 5 nd nd 8.826 8.716 0.988 nd nd nd nd nd nd