Data.

This dataset was collected by Citizen Scientists at an official 'Survey Area' as part of the Litter Intelligence long-term litter monitoring programme. The data are freely and openly accessible to anyone. Download the raw data, share this survey, and learn more about the data collection methodology through the links at the bottom of the page.

Litter Survey

beach-icon Beach.

Marlborough Sounds - Manaroa Head

11 February 2026

Manaroa Litter Monitoring Group

Lynley Offen

Overview

C

2

2.0

2.0

100m x 20m

Mixed Substrate

Items per 1,000m2

228

Products

457

2574

Type Count Weight (g)
Plastic 439 1773
Resin pellets D N/A
Plastic buoys 3 50
Gardening & farming related 9 17
Bottles <= 2 L 1 44
Bottle caps & lids 9 43
Shotgun wadding & shells 8 16
Food containers 1 9
Clothes pegs 1 3
Fishing gear 7 16
Food wrappers 2 1
Other Plastic 9 1
Strapping bands & tape 8 7
Toys, sport, & recreation (Plastic) 2 31
Vapes 1 4
Lollipop sticks 1 1
Unidentifiable hard plastic fragments 48 157
Rope 329 1373
Foamed Plastic 8 8
Polystyrene insulation or packaging 8 8
Glass & Ceramic 5 163
Bottles & jars 4 150
Glass or ceramic fragments 1 13
Wood 2 628
Processed timber & pallet crates 2 628
Other 1 0
Sanitary items 1 N/A
Fabric & Textiles 1 1
Canvas, sailcloth & sacking (hessian) 1 1
Rubber 1 1
Toys, Sports & Recreation (Rubber) 1 1

Materials

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  • If you would like to learn how this data was collected. Our Methodology