Glengonnar Water Field Results and What Next....

Mouse Water Camps Water Glengonnar Water

Land Use & Geography

Slope km from Source to confluence with River Clyde

Land Use & Geography Need to consider – Land Use – Slope – Altitude – Rainfall – Water Use – Land Runoff

Data Gathered Fisheries Survey Invertebrate Survey Water Velocity River Discharge Substrate Size Water Chemistry Land Use Geography

Water Chemistry

Water Velocity - Oranges Timed how long it took for an orange to travel 10m

Water Velocity - Oranges Used equation: speed = distance ÷ time

Water Velocity – Flow Meter Recorded the number of revolutions per minute and converted using an equation

Velocity Orange vs Flow Meter Orange = 0.58m per second Flow Meter = 0.25m per second Are these comparable results?? NO!!!!

River Discharge

River Discharge - Results Average River Discharge = 0.23m 3 s

Substrate Size Measured 100 random pieces of substrate Average size 8.1 cm

Erosion, Transportation or Deposition Substrate = 8.1 cm Velocity = 0.25 cm/sec We need to consider all the different sized substrates and flow changes

Invertebrate Data 3 min kick sample Count how many families present in river = Number of Taxa

Invertebrate Data 3 min kick sample Count how many families present in river = Number of Taxa Calculate the BMWP (Biological Monitoring Working Party) score

(10x6)+ (7x4)+ 6 + (5x3) = 114 These scores are based on tolerance to organic pollution Mayfly - Heptageniidae least tolerant (more likely to die) Worm - Oligochaeta most tolerant – unlikely to die

Invertebrate Data 3 min kick sample Count how many families present in river = Number of Taxa Calculate the BMWP (Biological Monitoring Working Party) score Calculate the ASPT (Average Score per Taxon)= BMWP Score/Number of TAXA

114÷16 = 7.13

Invertebrate Data 3 min kick sample Count how many families present in river = Number of Taxa Calculate the BMWP (Biological Monitoring Working Party) score Calculate the ASPT (Average Score per Taxon)= BMWP Score/Number of TAXA Compare our scores against expected scores where no pollution existed (output from RIVPACS)

Invertebrate Results Site Taxa ÷ Expected Taxa= EQI Taxa 16 ÷ 21 = 0.76 Site ASPT÷ Expected ASPT= EQI ASPT 7.13 ÷ 6.58 = 1.08

Invertebrate Results ClassDescription ASPT EQI TAXA EQI A1 Excellent> 1.0> 0.85 A2Good> 0.9> 0.70 BFair> 0.77> 0.55 CPoor> 0.50> 0.30 D Seriously Polluted < 0.50< 0.30 EQI Taxa = 0.76 EQI ASPT = 1.08 Use lowest score Site = A2 Good

Fisheries Data 3 Run Depletion Fishing Fish a measured area of river Calculate a minimum estimate of fish density per 100m 2

Fisheries Results

Number of Trout Caught -23 Area Fished (m 2 ) Brown Trout minimum estimate density per 100m 2 = 20 Fry found at site – no 19 fish had black tails

What is good habitat? Good Bankside and instream cover for fish to hide in Holds banking together to prevent erosion Water depth – not too shallow or deep

What is good habitat? Changes in flow type Meandering nature

What is good habitat? Not all rivers are the same shape….upland rivers that are steep tend to be straighter and full of boulders and large cobbles.

What next? Examine your site results Compare with a ‘perfect’ river How is your site different? How could it be improved? Can it be improved? Do you need to work with pupils from other classes? Check out the website where all of the information for the field results can be found. Use Kidblog to talk to each other and ask questions Internet

Presentation A group from each site will present their findings to us Looking for you to highlight the biggest problems faced at your site. Date to be confirmed...June 2014.