Santa Cruz Wharf
Wednesday, May 22, 2024
* Quick HAB Observations *
– Pseudo-nitzschia: Rare
– Alexandrium: Rare
– Dinophysis: Present
– Margalefidinium: Common
* Impressions *
Another cool, overcast/marine layered morning at the wharf. Water temp increased about 2C from last week and with that temp increase, the phytoplankton assemblage shifted back to dinoflagellates with very few diatoms in the net tow today. Phytoplankton biomass was about the same and Akashiwo was the most abundant. No Pseudo-nitzschia in the probed counts, but Alexandrium counts increased (~5x) this week.
Dinoflagellates:
A: Akashiwo
C: LRB
C: Margalefidinium
P: Prorocentrum
P: Dinophysis
R: Ceratium
R: Alexandrium
R: Protoperidinium
R: Boreadinium
R: Gymnodinium
R: Gyrodinium
R: Oxyphysis
R: Heterocapsa
R: Polykrikos
Diatoms:
R: Eucampia
R: Thalassiosira
R: Guinardia
R: Pseudo-nitzschia
R: Lauderia
R: Dactyliosolen
R: Coscinodiscus
R: Pleurosigma
R: Thalassiothrix
R: Tropidoneis
R: Fragilariopsis
R: Thalassionema
R: Entomoneis
* Environmental Information *
Time: 8:30 am
Collector: M. Conci
Water Conditions (SCW)
Water Temperature: 14.8 C
Water Conditions: Calm
Water Color/Code: Dark green, 10GY 2/4 (#30)
Water Visibility: 4 ft
Tide: Rising, High – 11:29, 3.4 ft
Surf Report: NW swell, 4-6 ft
Weather Conditions (KudelaHawk)
Sky: Overcast/marine layer
Air Temperature: 52.5 F (11.4 C)
Wind: 2 mph, N
Solar radiation: 114 watts/m^2
Monterey Wharf II
Wednesday, May 22, 2024
* Quick HAB Observations *
– Pseudo-nitzschia: Rare
– Alexandrium: Rare
– Dinophysis: Rare
– Margalefidinium: Rare
* Impressions *
The wharf this morning was cloudy. There was no breeze. There was a lot of activity at the wharf. The surface of the water was calm and had no detritus. The water this week was a slightly lighter green than last week with a visibility of 5.0m. Chlorophyll decreased from last week. Dinoflagellates dominated the water column. Akashiwo was abundant. Prorocentrum was common. Licmophora and heterocapsa were present. The HAB species that were observed in the water this morning included Pseudo-nitzschia, Alexandrium, Dinophysis, Cochlodinium, and Akashiwo sanguinea.
Dinoflagellates:
A: Akashiwo sanguinea
C: Prorocentrum spp.
R: Dinophysis spp.
R: Ceratium spp.
R: Gonyaulax spinifera
R: Protoperidinium spp.
R: Alexandrium spp.
R: Gyrodinium spp. (pink tipped)
R: Polykrikos spp.
R: Cochlodinium spp.
R: Oxyphysis
R: Pyrophacus spp.
R: Amylax
P: Heterocapsa spp.
Diatoms:
R: Chaetoceros spp.
R: Thalassiosira spp.
R: Pseudo-nitzschia spp.
R: Ditylum spp.
R: Guinardia spp.
R: Pleurosigma spp.
R: Thalassionema spp.
R: Hemiaulus spp.
R: Lauderia spp.
R: Navicula spp.
R: Licmophora spp.
Zooplankton:
R: fecal pellets, nauplii, tintinnids, calanoids, fish larvae, eggs
* Environmental Information *
TIME: 0709 PT
COLLECTOR: Hannah McGrath
Water Temperature: 13.9°C
Water Conditions: calm
Water Color: 10GY 2/4
Visibility: 5.0 m
Tide: Rising, 0.21 m, high at 1135 h
Chlorophyll: NA
Sky: cloudy, 100% cloud
Air Temperature: 11.11°C
Wind: offline, 3.58m/S
Rare (R): <1% ~~~ Present (P): 1 – 9% ~~~ Common (C): 10 – 49% ~~~ Abundant (A): >= 50%