Santa Cruz Wharf
Wednesday, November 1, 2023
* Quick HAB Observations *
– Pseudo-nitzschia: Rare
– Alexandrium: Rare
– Dinophysis: Rare
– Margalefidinium: None
* Impressions *
Another sunny and cool morning at the wharf. The net tow was similar to last week, mostly dinoflagellates and mostly Prorocentrum, but overall phytoplankton biomass decreased. Pseudo-nitzschia were seriata-size and P. australis were seen in the probed counts. Alexandrium cell concentration decreased by half this week.
Dinoflagellates:
A: Prorocentrum
R: Akashiwo
R: Lingulodinium
R: Ceratium
R: Protoperidinium
R: Dinophysis
R: Gymnodinium
R: Polykrikos
R: Alexandrium
Diatoms:
R: Thalassiosira
R: Pleurosigma
R: Chaetoceros
R: Pseudo-nitzschia
R: Lauderia
R: Proboscia
R: Eucampia
R: Guinardia
R: Thalassionema
R: Coscinodiscus
R: Asteromphalus
R: Fragilariopsis
R: Leptocylindrus
R: Lithodesmium
Other:
R: Dictyocha
* Environmental Information *
Time: 8:45 am
Collector: M. Conci
Water Conditions (SCW)
Water Temperature: 13.6 C
Water Conditions: Calm
Water Color/Code: Dark green, 10GY 3/4 (#29)
Water Visibility: 5 ft
Tide: Rising, Low – 6:36, 2.9 ft
Surf Report: WNW swell, 3-4 ft
NDBC buoy 46042
– Significant wave height: 3.3 ft
– Swell height/direction: 3.0 ft, SW
– Wind wave height/direction: 1.0 ft, NE
Weather Conditions (KudelaHawk)
Sky: Sunny
Air Temperature: 51.4 F (10.8 C)
Wind: 2 mph, NW
Solar radiation: 162 watts/m^2
Monterey Wharf II
Wednesday, November 1, 2023
* Quick HAB Observations *
– Pseudo-nitzschia: Present
– Alexandrium: Rare
– Dinophysis: Rare
– Margalefidinium: None
* Impressions *
This morning the wharf was chilly with a slight breeze. The sky was clear and sunny. There was lots of wave action on the surface. Overall, there was not a lot of human activity this morning. The water this week was bluer than last week with a visibility of 6.5 m. Chlorophyll decreased from last week. Dinoflagellates dominated the water column. Prorocentrum was abundant. Akashiwo was common. Chaetoceros and Pseudo-nitzschia were present in the water. The HAB species that were observed in the water this morning included Pseudo-nitzschia, Alexandrium, Dinophysis and Akashiwo sanguinea.
Dinoflagellates:
C: Akashiwo sanguinea
A: Prorocentrum spp.
R: Dinophysis spp.
R: Ceratium spp.
R: Gonyaulax spinifera
R: Protoperidinium spp.
R: Alexandrium spp.
R: Gyrodinium spp. (pink tipped)
R: Lingulodinium polyedrum
R: Pyrophacus spp.
R: Amylax
Diatoms:
P: Chaetoceros spp.
R: Thalassiosira spp.
R: Coscinodiscus spp.
P: Pseudo-nitzschia spp.
R: Ditylum spp.
R: Guinardia spp.
R: Pleurosigma spp.
R: Rhizosolenia spp.
R: Thalassionema spp.
R: Lauderia spp.
R: Navicula spp.
R: Cylindrotheca spp.
R: Asteromphalus spp.
R: Asterionellopsis spp.
R: Detonula spp.
R: Striatella spp.
R: Eucampia
R: Lioloma
Others:
R: Dictyocha spp.
Zooplankton:
R: fecal pellets, nauplii, tintinnids, calanoids, fish larvae, eggs
* Environmental Information *
TIME: 0700 PT
COLLECTOR: Hannah McGrath
Water Temperature: 12.5°C
Water Conditions: rough waves
Water Color: 10G 2/6
Visibility: 6.5 m
Tide: Falling, 1.01 m, high at 1241 h
Chlorophyll: 2.426mg/m^3 by in vivo RFU
Sky: sunny/ clear skies, 0% cloud
Air Temperature: 12.78°C
Wind: offline, 2.68m/S
Rare (R): <1% ~~~ Present (P): 1 – 9% ~~~ Common (C): 10 – 49% ~~~ Abundant (A): >= 50%