Santa Cruz Wharf
Wednesday, September 21, 2022
* Quick HAB Observations *
– Pseudo-nitzschia: Common
– Alexandrium: Present
– Dinophysis: None
– Margalefidinium: Common
* Impressions *
Partly cloudy and cool at the wharf this morning with a small swell rolling through. The bait ball migrated to the sampling area about halfway through the collection. Phytoplankton biomass was about the same as last week along with an increase in detritus/debris. Net tow remains dinoflagellates, but the assemblage shifted to being mostly Akashiwo and Margalefidinium. Pseudo-nitzschia were mostly delicatissima size and the Alexandrium counts increased.
Dinoflagellates:
C: Akashiwo
C: Margalefidinium
P: Ceratium
P: Alexandrium
R: Protoperidinium
R: Gyrodinium
R: Prorocentrum
R: Boreadinium
R: Scrippsiella
R: Polykrikos
R: Oxyphysis
Diatoms:
C: Pseudo-nitzschia
P: Thalassiosira
P: Thalassionema
P: Fragilariopsis
P: Chaetoceros
R: Guinardia
R: Lauderia
R: Asteromphalus
R: Navicula
R: Coscinodiscus
R: Lithodesmium
R: Nitzschia
R: Ditylum
R: Leptocylindrus
R: Eucampia
R: Proboscia
R: Pleurosigma
R: Tropidoneis
Other:
R: Dictyocha
* Environmental Information *
Time: 7:30 am
Collector: A. Trapp
Water Conditions (SCW)
Water Temperature: 14.8 C
Water Conditions: Small swell
Water Color/Code: Green/brown, 5GY 3/4 (#28)
Water Visibility: 5 ft
Tide: Rising, High – 9:36, 3.8 ft
Surf Report: SSW/NW swell, 2-4 ft
NDBC buoy 46042
– Significant wave height: 4.6 ft
– Swell height/direction: 4.6 ft, SSW
– Wind wave height/direction: 1.3 ft, SSW
Weather Conditions (KudelaHawk)
Sky: Partly cloudy
Air Temperature: 58.6 F (14.8 C)
Wind: 1.7 mph, NW
Solar radiation: 55 watts/m^2
Monterey Wharf II
No sample this week
Rare (R): <1% ~~~ Present (P): 1 – 9% ~~~ Common (C): 10 – 49% ~~~ Abundant (A): >= 50%