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Macroinvertebrate Regional Indices

Macroinvertebrate Regional Indices. New Jersey Diversity. New Jersey is a diverse state with many different ecosystem Because of this, we can expect to find different compositions of macroinvertebrates in different regions of the state The three defined water regions of the state are:

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Macroinvertebrate Regional Indices

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  1. Macroinvertebrate Regional Indices

  2. New Jersey Diversity • New Jersey is a diverse state with many different ecosystem • Because of this, we can expect to find different compositions of macroinvertebrates in different regions of the state • The three defined water regions of the state are: • High Gradient • Pinelands • Coastal Plains

  3. Indices and Metrixs • In order to score each stream more accurately the Volunteer Monitoring Program has developed a separate index for each region. • Indices are used to calculate scores for each biological sample. • Each index is made up of one to five metrixs.

  4. Score Calculation • We will go over how the scores are calculated for each region so that you understand what influences a stream’s score. • But after today, you will be able to just enter you counts into an Excel sheet that will calculate the score for you.

  5. Costal Plain Index Overview • CPMI is comprised of the following 4 metrics: • Number of EPT taxa • Ephemeroptera, Plecotera and Trichoptera • Percent NonInsect taxa • Beck’s Biotic Index • Percent Intolerant Taxa • % Worm, Leech and Lunged Snail Individuals

  6. Costal Plain Index Overview • The values you need to calculate the various metrics include: • The count of each organism present • The number of EPT taxa present • The percent of your sample that is non insect • Beck’s Biotic Index using tolerance values • The percent of your sample that is from intolerant taxa • The percent of your sample that are worms, leeches and snails

  7. Coastal Plains Macroinvertebrate Index

  8. Coastal Plains Macroinvertebrate Index Step 1: Column B- Record the number of individual organisms present in each group (taxa) in your sample. Record the total number of individuals in box B22

  9. Coastal Plains Macroinvertebrate Index Step 2: Column B- Total the number of taxa which had individual organisms present and record in box B23 1 2 3 4 5 6 7 8 9 10 11 12 13 14

  10. Coastal Plains Macroinvertebrate Index Step 3: Columns C, D, & F- Place an X in each box where taxa for that category were present

  11. Coastal Plains Macroinvertebrate Index Step 4: Columns C, D, & F- Total the X’s in each column and record in Box C23, D23, and F23 respectively

  12. Coastal Plains Macroinvertebrate Index Step 5: Divide the Total Taxa from Column D, box 23 by the Total Taxa from Column B, box 23, and multiply by 100- Record this number in the Percent box of Column D, box 24 4 14 = 0.286 0.286 * 100 = 28.6

  13. Coastal Plains Macroinvertebrate Index Step 6: Column E- For each taxa present in the Pollution Intolerant Category enter a score of 2. For each taxa present in the Pollution Sensitive Category enter a score of 1

  14. Coastal Plains Macroinvertebrate Index Step 7: Column E- Add the total for Column E and record in box E23

  15. Coastal Plains Macroinvertebrate Index Step 8: Divide the Total Taxa from Column F, box 23 by the Total Taxa from Column B, box 23 and multiply by 100. Record this number in the Percent box of Column D, box 24 3 14 = 0.214 0.214 * 100 = 21.4

  16. Coastal Plains Macroinvertebrate Index Step 9: Column G- Transfer the number of each individual taxa from Column B to the open cells in Column G. Add the total and from the Column and record in box G22

  17. Coastal Plains Macroinvertebrate Index Step 10: Divide the Total Individuals from Column G, box 22 by the Total Individuals from Column B, box 22 and multiply by 100. Record this number in the Percent box of Column G, box 24 10 100 = 0.1 0.1 * 100 = 10

  18. Coastal Plains Macroinvertebrate Index-Number of EPT Taxa Step 11: Enter the numbers from the specified boxes into the formulas in the Metric Table below and calculate the scores for each Metric. Metric 1 100 * (3 / 3) 100 * 1 =100

  19. Coastal Plains Macroinvertebrate Index-Percent NonInsect Taxa Step 11: Enter the numbers from the specified boxes into the formulas in the Metric Table below and calculate the scores for each Metric. Metric 2 100 * (62.5 – 28.6) / (62.5 – 16.67) 100 * (33.9 / 45.83) 100 * 0.7397 = 73.97

  20. Coastal Plains Macroinvertebrate Index-Beck’s Biotic Index Step 11: Enter the numbers from the specified boxes into the formulas in the Metric Table below and calculate the scores for each metric. Metric 3 100 * (15 / 14) 100 * 1.0714 = 107.14

  21. Coastal Plains Macroinvertebrate Index-Percent Intolerant Taxa Step 11: Enter the numbers from the specified boxes into the formulas in the Metric Table below and calculate the scores for each metric. Metric 4 100 * (21.4 / 44.4) 100 * 0.4820 = 48.20

  22. Coastal Plains Macroinvertebrate Index- % Worm, Leech and Lunged Snail Step 11: Enter the numbers from the specified boxes into the formulas in the Metric Table below and calculate the scores for each metric. Metric 5 100 * (46.2 - 10) / (46.2 – 1.85) 100 * (36.2 / 44.35) 100 * 0.8162 = 81.62

  23. Coastal Plains Macroinvertebrate Index Step 12: If any of the scores you calculated in the Metrics Table are greater than 100 round that score down to 100

  24. Coastal Plains Macroinvertebrate Index Step 13: Total the Score Column in the Metrics Table and record this number in the Total box of the Metrics Table. Divide this number by 5 to find the Average Metrics Score.

  25. Coastal Plains Macroinvertebrate Index Step 14: Compare the Average Score in the Metric Table to the chart below to find your final stream score.

  26. Now you give it a try

  27. High Gradient Index Overview • HGMI is comprised of the following metrix: • Biotic Index • This one’s easy!

  28. High Gradient Index Overview • The values you need to calculate the various metrics include: • The count of each organism present • The Biotic Index using tolerance values

  29. High Gradient Macroinvertebrate Index

  30. High Gradient Macroinvertebrate Index Step 1: Column B- Record the number of individual organisms present in each group (taxa) in your sample. Record total number of individuals in box B22.

  31. High Gradient Macroinvertebrate Index Step 2: Column C- For each taxa present in the Pollution Intolerant Category enter a score of 3. For each taxa present in the Pollution Sensitive Category enter a score of 2. For each taxa present in the Pollution Tolerant Category enter a score of 1. 3 2 1

  32. High Gradient Macroinvertebrate Index Step 3: Column C- Add the total for Column C and record in box C22.

  33. High Gradient Macroinvertebrate Index Step 4: Compare the Total from Column C to the chart to find your stream rating.

  34. Your Turn

  35. Pinelands Index Overview • PMI is comprised of the following 4 metrics: • % Crustacea and Mollusca Taxa • Number of Insect Taxa • Number of EPT Taxa • Ephemeroptera, Plecotera and Trichoptera • Number of Tolerant Taxa • % Worm, Leech and Lunged Snail Individuals

  36. Pinelands Index Overview • The values you need to calculate the various metrics include: • The count of each organism present • The number of taxa present • The percent of your sample that are crustacea & mullusca taxa • The number of insect taxa present • The number of EPT taxa present • The number of tolerant taxa presnet • The percent of your sample that are worms, leeches and snails

  37. Pinelands Macroinvertebrate Index

  38. Pinelands Macroinvertebrate Index Step 1: Column B- Record the number of individual organisms present in each group (taxa) in your sample. Record total number of individuals in box B22.

  39. Pinelands Macroinvertebrate Index Step 2: Column B- Total the number of taxa which had individual organisms present and record in box B23

  40. Pinelands Macroinvertebrate Index Step 3: Column C through F- Mark an X in each box where taxa for that category were present.

  41. Pinelands Macroinvertebrate Index Step 4: Column C through F- Calculate the number of Xs for each column and record in box 23 of column in each respective category.

  42. Pinelands Macroinvertebrate Index Step 5: Column I- Transfer the numbers of each individual taxa from Column B to the open cells in Column I. Add the total and record in box I 22.

  43. Pinelands Macroinvertebrate Index Step 6: Divide the Total Taxa from Column C, box 23 by the Total Taxa from Column B, box 23, and multiply by 100. Record this number in the Percent box of Column C, box24. 2 14 = 0.1429 0.1429 * 100 = 14.29

  44. Pinelands Macroinvertebrate Index Step 7: Divide the Total Individuals from Column G, box 22 by the Total Individuals from Column B, box 22, and multiply by 100. Record this number in the Percent box of Column G, box 24 7 100 = 0.07 0.07 * 100 = 7

  45. Pinelands Macroinvertebrate Index-Percent Crustacea & Mollusca Taxa Step 8: Enter the numbers from the specified boxes into the formulas in the Metrics Table below and calculate the scores for each metric. Metric 1 100 * (47.2 –14.29) / 47.2 100 * (32.91) / 47.2 100 * 0.697 =69.7

  46. Pinelands Macroinvertebrate Index-Number of Insect Taxa Step 8: Enter the numbers from the specified boxes into the formulas in the Metrics Table below and calculate the scores for each metric. Metric 2 100 *11 / 10 100 * 1.1 110

  47. Pinelands Macroinvertebrate Index-Number of EPT Taxa / (Number of Tolerant Taxa + 1) Step 8: Enter the numbers from the specified boxes into the formulas in the Metrics Table below and calculate the scores for each metric. Metric 3 100 * (3/ (4+ 1 )) 100 * ( 3 / 5 ) 100 * 0.6 = 60

  48. Pinelands Macroinvertebrate Index- % Worm, Leech and Lunged Snail Step 8: Enter the numbers from the specified boxes into the formulas in the Metrics Table below and calculate the scores for each metric. Metric 4 100 * (64.7 -7) / 64.7 100 * 57.7 / 64.7 100 * 0.8918 =89.18

  49. Pinelands Macroinvertebrate Index- Number of Tolerant Taxa Step 8: Enter the numbers from the specified boxes into the formulas in the Metrics Table below and calculate the scores for each metric. Metric 5 100 * (4 –4) / (4 – 2) 100 * 0 / 2 100 * 0 0

  50. Pinelands Macroinvertebrate Index Step 9: If any of the scores you calculated in the Metrics Table are greater than 100 round that score down to 100

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