ACBA Mussel Monitoring
|
7/16
|
| Basket 1 |
Basket 2 |
Basket 3 |
Basket 4 |
| mm |
gram |
mm |
gram |
mm |
gram |
mm |
gram |
| 41.7 |
6.7 |
38.0 |
5.0 |
43.5 |
7.9 |
41.2 |
7.0 |
|
| Overall |
| Ave length |
Ave wt |
| 41.1 |
mm |
6.7 |
gm |
| 3-mos mussel growth |
| 9.1 |
mm |
4.0 |
gm |
| 22.2% |
|
59.8% |
|
No dead mussels.
Dragonfly
nymph and tiny amphipoda
(shrimp) in the baskets
_________________
|
|
We found 3 baskets floating. Hopefully the 4th is there, sitting on the bottom. We have a replacement basket to install today.
|
The day was very warm, with on and off light showers.
Volunteers from DC Strokes worked with Kyle.
|
|
Kyle Spears, Project Leader
|
Kyle used two poles with hooks to lift the
baskets up onto the seawall, and also to
wash and remove some of the sediments.
(click the photo to view video)
|
 
Measuring ambient water temperature.
Water transparency was also measured, using a
secchi disk
|
|
Four baskets were brought up onto the seawall. The tops
were taken off and debris was removed. The debris
included trash, elodea water weed, and lots of sticks.
|
Under all that debris are 250 Alewife Mussels
|
|
A small freshwater clam shell lay on top of basket #1
|
A muddy dragonfly nymph from one of the baskets
Yes - this tiny dragon is alive!
|
|
These smart volunteers brought a CANOPY with them! Made the
rainy day more bearable
|
Working in teams, the volunteers measured length and weight of
25% of the mussels in each basket. (25 out of 250 mussels)
|
|
Using calipers to measure mussel length
|
Weighing each mussel
|
Recording length and weight
|
Next Quarterly Monitoring Session - October
Bring paper towels, bucket
(The next measurements actually happened in December)
Replacing basket covers and securing with reusable zip ties. Third basket fr left is the replacement - we're 
Four baskets in place again, tied together with ropes, and floating off the seawall.
The Mussel Team: 
Identifying Our Bioswale Plants
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