Santa Cruz Wharf
Wednesday, November 22, 2023
* Quick HAB Observations *
– Pseudo-nitzschia: None
– Alexandrium: Present
– Dinophysis: None
– Margalefidinium: Rare
* Impressions *
Sunny and cold at the wharf this morning. The net tow was exclusively dinoflagellates this week (despite an effort to find a diatom cell), an occurrence that has not happened since Nov 2017. Phytoplankton biomass was similar to last week, but the phytoplankton assemblage shifted to mostly Akashiwo. Alexandrium counts were similar to last week.
Dinoflagellates:
A: Akashiwo
P: Prorocentrum
P: Ceratium
P: Lingulodinium
P: Alexandrium
R: Protoperidinium
R: Margalefidinium
R: Polykrikos
R: LRB
Diatoms:
None
* Environmental Information *
Time: 7:45 am
Collector: A. Trapp
Water Conditions (SCW)
Water Temperature: 13.7 C
Water Conditions: Calm
Water Color/Code: Green/blue, 5BG 2/6 (#15)
Water Visibility: 7 ft
Tide: Falling, High – 6:29, 5.2 ft
Surf Report: WNW swell, 3-4 ft
NDBC buoy 46042
– Significant wave height: 3.3 ft
– Swell height/direction: 3.3 ft, W
– Wind wave height/direction: 1.0 ft, ESE
Weather Conditions (KudelaHawk)
Sky: Sunny
Air Temperature: 48.4 F (9.1 C)
Wind: 8 mph, W Solar radiation: 65 watts/m^2
Monterey Wharf II
Wednesday, November 22, 2023
* Quick HAB Observations *
– Pseudo-nitzschia: Rare
– Alexandrium: None
– Dinophysis: Rare
– Margalefidinium: Rare
* Impressions *
The wharf this morning was chilly and windy. The sky was mostly blue with a few wispy clouds. The surface of the water was wavy. In the distance, you could see the mountains. The water this week was a darker green than last week with a visibility of 6.5m. Chlorophyll decreased from last week. Dinoflagellates dominated the water column. Akashiwo, Prorocentrum, and Lingulodinium were common. Ceratium was present. The HAB species that were observed in the water this morning included Pseudo-nitzschia, Dinophysis, Cochlodinium and Akashiwo sanguinea.
Dinoflagellates:
C: Akashiwo sanguinea
C: Prorocentrum spp.
R: Dinophysis spp.
P: Ceratium spp.
R: Gonyaulax spinifera
R: Protoperidinium spp.
R: Cochlodinium spp.
C: Lingulodinium polyedrum
R: Pyrophacus spp.
R: Amylax
Diatoms:
R: Chaetoceros spp.
R: Coscinodiscus spp.
R: Ditylum spp.
R: Pleurosigma spp.
R: Rhizosolenia spp.
R: Thalassionema spp.
R: Cylindrotheca spp.
R: Licmophora spp.
R: Odontella spp.
R: Striatella spp.
* Environmental Information *
TIME: 0651 PT
COLLECTOR: Hannah McGrath
Water Temperature: 14.9°C
Water Conditions: rough waves
Water Color: 10Y 2/2
Visibility: 6.5 m
Tide: Falling, 1.58 m, low at 1138 h
Chlorophyll: 2.167 mg/m^3 by in vivo RFU
Sky: sunny/ clear skies, 10% cloud
Air Temperature: 12.78°C
Wind: offline, 3.13m/S
Rare (R): <1% ~~~ Present (P): 1 – 9% ~~~ Common (C): 10 – 49% ~~~ Abundant (A): >= 50%