Invasive SpeciesHydrilla

Hydrilla verticillata
FOUND by MsSciGr3
2018-06-11
Lincolnville
ID Questioned
Quality checked by Mike M.
Peer reviewed by Addison J.
Field Notes
when we were there we caute a huge fish.
A sketch of our study site.
Supporting Evidence
Photo of my evidence.
Found in water
Photo of my evidence.
Small leaves
Photo of my evidence.
wavy leaves
Species Observation: Species Looked For
Did you find it?: 
I think I found it
Scientific name:
Hydrilla verticillata
Common name:
Hydrilla
Count of individuals: 
1-10
Coverage: 
Less than 1/4 covered
Reproduction: 
Vegetative structures (plants)
How big is it?: 
Greater than 10 cm
Is it male or female?: 
Can't tell
Sampling method: 
Net
Photo of our sampling method.
Place Studied
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Map this species
Latitude: 
N 44.314900 °
Longitude: 
W -69.044400 °
Observation Site Information
A photo of our study site.
Habitat: 
Coastal - Beach or dune
Trip Information
Name:
Ducktrap River Spring Assessment (Tanglewood)
Trip date: 
Mon, 2018-06-11 09:04
Town or city: 
Lincolnville
Type of investigation: 
Species and Habitat Survey
Ecosystem: 
Freshwater
Watershed: 
Eastern Coastal
MIDAS Code: 
Habitat Observations
Species diversity: 
3 different species
Evidence of vectors: 
Walking trail
People
Recent disturbance
Water temperature: 
18.0°C
pH: 
6.0
Dissolved oxygen: 
4.0mg/L

Comments

I suggest you study the plant in more detail to see if you still think it is hydrilla (assuming you still have the plant). Refer to the Vital Signs hydrilla identification card for specifics on this plant. You note that the leaves are small. Did you measure the leaves? The identification card says leaves are 5 to 20 mm long. Is that what you measured? You also note that leaves are wavy. Refer again to the identification card for hydrilla. Does the card note that leaves are wavy? Finally, the identification card for hydrilla states that whorls near the top of the stem have 4 to 8 leaves. Is that what you found?