Aquatic Plant Survey 2018

Prospect Lake Aquatic Plant Survey
Sampling Date: September 5, 2018

Volunteers:

Ron Delange, Joanne Delange, Mary Haig Brown, Lori James Derry, Carmel Thomson, Dr. Rick Nordin, Winona Pugh

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

@ 2meters
Vallisneria americana (eel grass)
Elodea canadensis (Canada waterweed
Potamogeton robbinsii (fern pondweed)

@ 4 meters
Ceratophyllum demersum (coontail)

@ 6 meters – too shallow for sample

Site 2: Blethman Creek

@ 2 meters
Elodea canadensis (Canada waterweed)
Vallisneria americana (eel grass)
Potamogeton robbinsii (fern pondweed)
Ceratophyllum demersum (coontail)

@4 meters Ceratophyllum demersum (coontail)

@ 6 meters – bay too shallow for sampling

Site 3 water sample @ 2 meters

@ 2 meters – Chara or Nitella
Myriophyllum sibericum (northern water milfoil) native
Ceratophyllum demersum (coontail)

@ 4 meters – Ceratophyllum demersum (coontail)

@ 6 meters – Ceratophyllum demersum (coontail)

Site 4
@ 2 meters

Potamogeton robbinsii (fern pondweed)
Elodea canadensis (Canada waterweed)
Vallisneria americana (eel grass)
Stuckenia pectinata (Sago pondweed)
Chara
@ 4 meters – Ceratophyllum demersum (coontail)
@ 6 meters – Ceratophyllum demersum (coontail)
Site 5: water sample @ 4 meters
@ 2 meters – Elodea canadensis
Vallisneria americana (eel grass) dense
Ceratophyllum demersum (coontail)
Potamogeton robbinsii (fern pondweed
Stukenia pectinata (Sago pondweed))
@ 4 meters – Ceratophyllum demersum (coontail)
@ 6 meters – Ceratophyllum demersum (coontail)
Potamogeton amplifolius (big leaf pondweed)
Site 6: water sample @ 6 meters
@ 2 meters
Elodea canadensis (Canada waterweed)
Potamogeton robbinsii (fern pondweed)
Vallisneria americana (eel grass)
Ceratophyllum demersum (coontail)
@4 meters –Ceratophyllum demersum (coontail)
Potamogeton Richardsonii
Potamogeton pasilus
@ 6 meters – Ceratophyllum demersum (coontail)
Site 7: shallow shelf
@2 meters
Valesneria americana (eel grass)
Elodea canadensis (Canada waterweed)
Potamogeton Richardsonii (pondweed)

Site 8: shoreline extremely sloping to deepest point of the lake at 14 meters
@2 meters –too sloped
@4 meters – too sloped
@6 meters – no growth

July 19th: Secchi Disc reading/s

Same day: readings now are from Maltby Lake

Go to Friends of Maltby Lake Watershed to learn more:

https://maltbylake.com

Prospect Lake Aquatic Plant Sampling Sept 5th, 2018

Joanne, Ron & Keta Delage arrive on their float.

As only one float this year, we start at site #6 and work our way around the lake, returning to Whitehead Park.

Rick Nordin and Winona Pugh take the first water sample at Site 6: water taken from 6 metres.

Dr Rick Nordin

Rick has a PhD in freshwater biology from UBC, and has worked for the BC Ministry of Environment as a specialist in the area of water quality in a position as Provincial Limnologist for 29 years. He has also been an adjunct professor at the University of Victoria teaching and doing research on lakes for 20 years. Rick is a former board member of the North American Lake Management Society and present board member of the BC Lakes Stewardship Society, and has published many scientific papers and reports in government, university and as a consultant (15 years) on BC water quality and limnology.