Eelgrass shoreline extent + condition survey — Anacostia River tidal shoreline, Washington, DC

A tidal Anacostia River shoreline in DC, under active restoration, has no recent habitat-condition survey. Standard: NOAA eelgrass extent + condition; SDG 14.2 Proof: low-tide photos + GPS + patch extent + shoot density + condition Method (NOAA coastal habitat (eelgrass / salt marsh) extent + condition, ~60-120 min): 1. Check the tide table; plan to work the low tide; tell someone your plan and return time. 2. Navigate to the habitat edge; record GPS waypoints along the patch/edge. 3. Photograph the meadow/marsh at low tide. 4. Record shoot/stem density per quadrat and estimate patch extent (or edge scarp height for marsh). 5. Note condition (epiphytes, dieback, wrack) and adjacent land use/armoring. 6. Enter density, extent, condition, GPS, photos into the proof record; sign. Equipment: tide table, GPS phone, quadrat frame, measuring tape, boots/waders, camera Done when: Density (shoots/stems per quadrat) recorded; Patch extent or edge position recorded via GPS; Condition + adjacent-use note recorded; Low-tide photos + GPS waypoints

Where

Anacostia River tidal shoreline, Washington, DC

Pay

$81 proposed

This packet is not funded yet, so this figure is a proposed price and not money waiting in escrow. If a buyer funds it, approved proof settles that price onchain. If nobody funds it, approved proof earns provable credit toward the work instead of cash. You see which before you claim, never after.

Proof

low-tide photos + GPS + patch extent + shoot density + condition

This is exactly what gets it approved. Nothing settles without it.

Level

advanced

Open until

2026-08-21

How this work is done

A documented method, so this packet comes out the same whoever does it. Typically 60–120 minutes. Method of record: NOAA coastal habitat (eelgrass / salt marsh) extent + condition

Bring

• tide table
• GPS phone
• quadrat frame
• measuring tape
• boots/waders
• camera

Steps

1. 1. Check the tide table; plan to work the low tide; tell someone your plan and return time.
2. 2. Navigate to the habitat edge; record GPS waypoints along the patch/edge.
3. 3. Photograph the meadow/marsh at low tide.
4. 4. Record shoot/stem density per quadrat and estimate patch extent (or edge scarp height for marsh).
5. 5. Note condition (epiphytes, dieback, wrack) and adjacent land use/armoring.
6. 6. Enter density, extent, condition, GPS, photos into the proof record; sign.

If it does not match the plan

• Soft mud / rising tide -> stop and retreat; safety over data.
• Edge retreat or heavy dieback observed -> flag for living-shoreline / protection planning.

What counts as done

• Density (shoots/stems per quadrat) recorded
• Patch extent or edge position recorded via GPS
• Condition + adjacent-use note recorded
• Low-tide photos + GPS waypoints

Proof is measured against these, not judged by taste.