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Dive Against Debris Data Submission

Iririki Island

10 April, 2019

Team Leader
Christina Shaw
Number of Participants
6
Total Debris Collected
2529.2 kgs (measured)

-17.745209184481, 168.31115399611

Survey Information

Location Name
Iririki Island
Organization/Dive Centre
Big Blue Vanuatu
City
Port Vila
Country
Vanuatu
Date
10 April, 2019
Survey Duration
528 Minutes
GPS Coordinates
Latitude: -17.745209184481
Longitude: 168.31115399611
Weather Conditions
Slight wind and showers
Survey Depth Range
1–27 meters
Area Surveyed
6300 m2
Dominant Substrate
silt
Ecosystem
coral reef
Wave Conditions
Smooth (wavelets) for waves 0.1 - 0.5 meter high
plastic materials collected
Bags-grocery/retail (plastic) 106
Beverage Bottles: Less Than 2 Litres (plastic) 139
Bottles: Bleach/cleaner Bottles 1
Bottles: Oil/lube 6
Buckets, Drums & Jerrycans-2 Liters Or More 2
Buoys & Floats (plastic & Foamed) 1
Carpet (synthetic) 6
Containers: Fast Food, Lunch Boxes & Similar 2
Cups, Plates, Forks, Knives, Spoons (plastic) 54
Diapers/nappies 1
Fishing: Nets & Pieces Of Nets 3
Food Wrappers (plastic) 275
Mesh Bags: Fruit/vegetable/shellfish 5
Pipes (plastic-PVC) 127
SCUBA & Snorkel Gear-masks, Snorkels, Fins 1
Sheeting: Tarpaulin, Plastic Sheets, Palette Wrap 27
Straws, Stirrers 1
Syringes (plastic) 4
Tobacco Packaging & Wrappers 3
Strapping Bands (plastic) 33
Rope (plastic/nylon) 99
glass materials collected
Cups & Plates-tableware/dishes (glass & Ceramic) 29
Jars-food (glass) 62
Syringes (glass) 1
Glass & Ceramic Fragments 492
Beverage Bottles (glass) 761
metal materials collected
Aerosol/spray Cans 1
Batteries: AA, AAA, C & D, 6V, 9V, Etc. 65
Beverage Cans (aluminium) 413
Cans: Food/juice, Other (tin) 56
Cups & Plates-tableware/dishes (metal) 1
Drums: 55 Gallon 25
Forks, Knives, Spoons (cutlery) 3
Pipes & Rebar 121
Metal Fragments 130
Batteries: Car Or Boat 18
Fishing: Traps & Pots 1
rubber materials collected
Gloves (rubber) 1
Inner-tubes & Rubber Sheets 14
Tires/tyres 30
Rubber Fragments 41
wood materials collected
Lumber (processed Or Cut/milled Wood) 10
cloth materials collected
Towels/rags 23
paper materials collected
Cardboard: Packaging & Cartons 8
mixed materials collected
Clothing 69
Fireworks 25
Shoes-flip Flops, Sandals, Tennis, Etc 15
Toys 1

This was an area where many boats were wrecked during Tropical Cyclone Pam in 2015. There are still wrecked boats on the shoreline and under the water.

Bow thruster

debris from wrecked boats

batteries

electrical tools and appliances


This was part of a marine litter demonstration project undertaken with the Vanuatu Environmental Science Society and TierrMar under the Commonwealth Litter Programme (CLiP) funded by the UK government. The aim was to demonstrate that cyclone debris is still a problem 4 years on from the devastating cyclone that wrecked many boats in the harbour. To calculate the amount of debris that there is per square meter we measured the area and dived along 50 meter ropes. In all there were 21 transects set 10 meters apart, which equates to 5,250 sq meters. There was another 210 x 5 meter area in the shallows beyond the transects which was also cleared. The total area was therefore 6,300 Sq meters. All the debris was taken ashore after each dive and was counted together at the end of the cleanup. There are more than 20 "other items" I have an excel spreadsheet which details everything that was found which I can supply.

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