Physical Measurements 2008

Willapa Bay—Bay Center
April 25, 2008
Arrival: 9:45
Low Tide: 11:31 (+0.2 feet)
Measurements: ~13:15
Departure: 14:30

 

Open Water

Channel

Interstitial/Sediment

Description

Water with no restrictions from rest of bay

Connected by somewhat isolated channel

Water found at approximately 1 foot into the sediment

pH

7.3

7.6

6.7

Temperature

12.5°C

19.6°C

10.4°C

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San Juan Island: Dredge/Trawl
May 9, 2008

 

First dredge (rocky)

Second dredge (rocky)

Trawl (sandy)

Depth

70 fathoms

70 fathoms

60 fathoms

Start

48° 32.872’ N
122° 59.829’ W

48° 32.903’ N
122° 59.930’ W

48° 34.071’ N
123° 1.937’ W

End

48° 32.941’ N
122° 59.598’ W

48° 32.986’ N
122° 59.894’ W

48° 34.206’ N
123° 2.198’ W

San Juan Island: Argyle Creek
May 10, 2008
Arrival: 9:40
Departure: 11:00
Low Tide: 15:21 (-1.4 feet)

 

Lagoon

Stream

Bay

Salinity

34 ppt

33 ppt

34 ppt

Flow

Evenly spaced transect across midpoint from south to north
2 mph
2 mph
2 mph
2 mph
2 mph
3 mph
1 mph

 

 

Zone 1

Zone 2

Zone 3

Zone 4

pH

8.2

8.2

8.2

8.2

Temperature

12.4°C

12.5 °C

12.5 °C

12.6 °C

For definition of “zones”, see FHL Marine Habitats webpage

San Juan Island: Cattle Point
May 10, 2008
Arrival: 13:40
Low Tide: 15:21 (-1.4 feet)
Departure: 16:45

 

Open Water

Tide Pool

pH

8.6

8.8

Temperature

10.1 °C

13.0 °C

Salinity

34 ppt

35 ppt

San Juan Island: False Bay
May 10, 2008
Low Tide: 15:21 (-1.4 feet)
Arrival: 16:30

No data collected

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Olympic Peninsula: Freshwater Habitats
May 23, 2008
Lake Mills/Upper Elwha (Glines Canyon Dam)
Lake Sutherland (Boat ramp)
Lake Crescent (Dock near lodge, shoreline on north side)

Lake Mills

Lake Sutherland

Lake Crescent (Dock)

Lake Crescent (Shoreline)

pH

6.9

8.1

8.1

7.6

Temperature (just below surface)

7.1 °C

13.4 °C

11.1 °C

11.6 °C

Salinity

1 ppt

0 ppt

1 ppt

2 ppt

Conductivity

58.6 mS/cm

121.2 mS/cm

95.6 mS/cm

95.3 mS/cm

Secchi Depth (estimated)

~0.15m

~2-3m

Too far to estimate

Too far to estimate

Elevation

605 feet

530 feet

550-580 feet

550-580 feet

Nitrate (2 samples)
BD/BD
BD/0.02 mg/L
0.1 mg/L
BD/BD
0-phosphate (2 samples)
1.33/2.33 mg/L
BD/1.67 mg/L
0.67 mg/L
BD/BD

BD = Below detection limits

Olympic Peninsula: Sokal Point
May 24, 2008
Arrival at Rialto Beach: 6:30
Arrival at Sokal Point 8:00
Low tide: 10:08 (-0.5 feet)

 

Open Water

Tide Pool

pH

ND

8.0

Temperature

ND

10.0 °C

Salinity

ND

34 ppt

Olympic Peninsula: Salt Creek

 

Open Water

Tide Pool

pH

8.4

8.2

Temperature

10.7 °C

15.5 °C

Salinity

34 ppt

34 ppt

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