Pamela Esson Habitat Surveyor The River Dee Trust Pioneering - - PowerPoint PPT Presentation

Pamela Esson

Habitat Surveyor The River Dee Trust

Pioneering Technology

• Developed from a pilot survey which explored

different methods of data collection

• Walk over survey using Map Maker Pro
• Record, measure, photos
• Export data to GIS in a few clicks!
• Distance covered varies depending on diverse

habitat, weather, terrain

• Invaluable trade off between time and accuracy

Overcoming Challenges

• Waterproofing the tablet
• Pack it away or leave on ground while jumping

fences

• Anti glare screen protector
• Any means to preserve battery as percentage

remaining warning is misleading

• Creating layers and using correct saving

sequence in Map Maker is essential or expect loss of data!

Walk Over Survey Key

• Wet Width- 10 Average widths per 1km-

Point symbol

• G1 Optimal Fry Habitat- Yellow Polygon
• G2 Suboptimal Fry Habitat- Yellow

hatch Polygon

• G1 Parr Optimal Habitat- Orange

Polygon

• G2 Parr Suboptimal Habitat- Orange

Hatch

• Spawning Habitat- Black Diamond

Hatch

• Silted Spawning- Black Diagonal Hatch
• G3 Polygon Bedrock- Red
• G3 Polygon Turbulent- Red
• G3 Polygon Dry- Red
• G3 Polygon Unsuitable- Red
• Vegetated Island- Polygon Grey
• Shingle Bar- Polygon Grey
• Dredging- Polygon Brown
• Lamprey Habitat- Polygon Pink
• New Channel- Polygon Blue
• Drain Pipe- Point symbol
• Pollution Diffuse/Point source- Point

Symbol

• Bank Collapse- Point symbol
• Erosion- Red Dashed Line
• Instream Vegetation- Point Symbol
• Photo- Point Symbol
• Channel/Bank Modification SFCC

Abb.- Purple Dashed Line

• Land Use SFCC Abb.- Point Symbol
• Obstacles SFCC Abb.- Point Symbol
• Note- Point Symbol

Screen shot