Aquatic Plant Survey 2021

Sept 9th: Aquatic Plant Survey

Volunteers: Ron Delange, Joanne Delange, Lori James Derry, Winona Pugh
To enable safe social distancing the number of volunteers was limited to 4 with assigned tasks to maintain established protocols.

Plant Sampling Sites:
Site # 1: North 4830’25” X West 12326’29”
Site # 2: North 4830’28” X West 12326’41”
Site # 3: North 4830’47” X West 12326’48”
Site # 4: North 4830’47 X West 12326’27”
Site # 5: North 4831’ 5” X West 12326’25”
Site # 6: North 4830’47” X West 12326’29”
Site # 7: North 4830’47” X West 12326’54
Site # 8: North 4830’47” X west 123 26’54”

Sample Location:
Site 1 Southern Bay

@ 2 meters

 Vallisneria americana (eel grass) – moderate
 Potamogeton robbinsii (fern pondweed) – sparse
 Myrophyllum spicatum (eurasian water milfoil – moderate

@ 4 meters

 Ceratophyllum demersum (coontail) – moderate
 Vallisneria americana (eel grass) – sparse
 Myriophyllum sibericum (northern water milfoil) native Myrophyllum spicatum (eurasian water milfoil) invasive – sparse

@ 6 meters – too shallow for 6 meter sample

Site 2: Blethman Creek

@ 2 meters

• Myriophyllum sibericum (northern water milfoil) native Myrophyllum spicatum (eurasian water milfoil) invasive – moderate
• Vallisneria americana (eel grass) – sparse
• Ceratophyllum demersum (coontail) – dense

@ 4 meters

• Myriophyllum sibericum (northern water milfoil) native Myrophyllum spicatum (eurasian water milfoil) invasive – moderate
• Ceratophyllum demersum (coontail) – dense

@ 6 meters

 Potamogeton robbinsii (fern pondweed) – dense
 Ceratophyllum demersum (coontail) – dense
Myriophyllum sibericum (northern water milfoil) native Myrophyllum spicatum (eurasian water milfoil) invasive – moderate

Site 3 Estelline Bay

@ 2 meters

 Myriophyllum sibericum (northern water milfoil) native Myrophyllum spicatum (eurasian water milfoil) invasive – dense
 Ceratophyllum demersum (coontail) – dense
 Vallisneria americana (eel grass) – sparse
 Elodea canadensis (Canada waterweed) – sparse

@ 4 meters

 Myriophyllum sibericum (northern water milfoil) native Myrophyllum spicatum (eurasian water milfoil) invasive
 Ceratophyllum demersum (coontail)
 Vallisneria americana (eel grass)

@ 6 meters

 Myriophyllum sibericum (northern water milfoil) native Myrophyllum spicatum (eurasian water milfoil) invasive
 Ceratophyllum demersum (coontail)

Site 4 Northwest Bay

  @ 2 meters

 Potamogeton robbinsii (fern pondweed) – moderate
 Ceratophyllum demersum (coontail) – dense
 Vallisneria americana (eel grass) – sparse
 Myrophyllum spicatum (eurasian water milfoil) invasive – dense


@ 4 meters

 Elodea canadensis (Canada waterweed) – sparse
 Ceratophyllum demersum (coontail) dense
 Vallisneria americana (eel grass) – sparse
 Myriophyllum sibericum (northern water milfoil) native Myrophyllum spicatum (eurasian water milfoil) invasive – dense
 Potamogeton robbinsii (fern pondweed) – sparse

@ 6 meters

 Ceratophyllum demersum (coontail) – dense
 Myriophyllum sibericum (northern water milfoil) native Myrophyllum spicatum (eurasian water milfoil) invasive – dense

Site 5: Killarney Creek

@ 2 meters

 Vallisneria americana (eel grass) moderate
 Ceratophyllum demersum (coontail) dense
 Elodea canadensis (Canada waterweed) sparse
 Myriophyllum sibericum (northern water milfoil) native / Myrophyllum spicatum (eurasian water milfoil) invasive –moderate

@ 4 meters

 Potamogeton robbinsii (fern pondweed) moderate
 Ceratophyllum demersum (coontail) dense
 Stukenia pectinata (Sago pondweed) sparse
 Myriophyllum sibericum (northern water milfoil) native/ Myrophyllum spicatum (eurasian water milfoil) invasive –moderate

@ 6 meters –
 Myriophyllum sibericum (northern water milfoil) native Myriophyllum spicatum (eurasian water milfoil) invasive – sparse
 Ceratophyllum demersum (coontail) – dense

Site 6: Echo Bay
@ 2 meters

 Elodea canadensis (Canada waterweed) – moderate
 Potamogeton robbinsii (fern pondweed) – moderate
 Vallisneria americana (eel grass) – sparse
 Stukenia pectinata (Sago pondweed) sparse
 Potamogeton amplifolius (big leaf pondweed) – moderate

@ 4 meters

 Ceratophyllum demersum (coontail) – dense
 Potamogeton robbinsii (fern pondweed) – moderate
 Vallisneria americana (eel grass) – sparse
 Elodea canadensis (Canada waterweed) – sparse
 Myriophyllum sibericum (northern water milfoil) native /Myriophyllum spicatum (eurasian water milfoil) invasive – moderate
 Stukenia pectinata (Sago pondweed) sparse

@ 6 meters

 Ceratophyllum demersum (coontail – dense

Site 7: shallow shelf

@ 2 meters


 Potamogeton robbinsii (fern pondweed) – moderate
 Vallisneria americana (eel grass) – sparse
 Potamogeton amplifolius (big leaf pondweed) – moderate
 Myriophyllum sibericum (northern water milfoil) native /Myriophyllum spicatum (eurasian water milfoil) invasive – moderate

@ 4 meters
 Vallisneria americana (eel grass)
 Ceratophyllum demersum (coontail
 Elodea canadensis (Canada waterweed) – moderate

@ 6 meters

 Potamogeton amplifolius (big leaf pondweed) – moderate sparse
 Vallisneria americana (eel grass)
 Ceratophyllum demersum (coontail)

Site 8: shoreline extremely sloping to deepest point of the lake at 14 meters 2021 Samples taken from island shoreline

@ 2 meters

 Elodea canadensis (Canada waterweed) sparse
 Potamogeton robbinsii (fern pondweed) – sparse

@ 4 meters

 Elodea canadensis (Canada waterweed) sparse
 Chara (Muskgrass) sparse
 Potamogeton robbinsii (fern pondweed) – sparse

@ 6 meters

 Elodea canadensis (Canada waterweed) sparse
 Chara (Muskgrass) sparse