Santa Cruz Wharf
Wednesday, November 15, 2023
* Quick HAB Observations *
– Pseudo-nitzschia: None
– Alexandrium: Rare
– Dinophysis: Rare
– Margalefidinium: None
* Impressions *
Overcast this morning, with a break in the rain (there was rain overnight and more predicted this afternoon). As expected, the phytoplankton biomass decreased and the detritus/debris increased. Net tow remains mostly dinoflagellates and Prorocentrum is still the most abundant. No Pseudo-nitzschia were observed this week and Alexandrium counts decreased an order of magnitude from last week.
Dinoflagellates:
C: Prorocentrum
C: Heterocapsa?
C: Akashiwo
R: Lingulodinium
R: Ceratium
R: Protoperidinium
R: Dinophysis
R: Gymnodinium
R: Oxytoxum
R: Alexandrium
Diatoms:
P: Thalassiosira
R: Chaetoceros
R: Proboscia
R: Coscinodiscus
R: Asteromphalus
R: Dactyliosolen
R: Licmophora
R: Ditylum
* Environmental Information *
Time: 8:45 am
Collector: M. Conci
Water Conditions (SCW)
Water Temperature: 14.2 C
Water Conditions: Large swell
Water Color/Code: Green, 10GY 3/4 (#29)
Water Visibility: 3 ft
Tide: Rising, High – 10:26, 5.9 ft
Surf Report: WNW swell, 4-6 ft
NDBC buoy 46042
– Significant wave height: 8.2 ft
– Swell height/direction: 6.9 ft, W
– Wind wave height/direction: 4.6 ft, S
Weather Conditions (KudelaHawk)
Sky: Overcast
Air Temperature: 54.5 F (12.5 C)
Wind: 5.3 mph, W
Solar radiation: 37 watts/m^2
Monterey Wharf II
Wednesday, November 15, 2023
* Quick HAB Observations *
– Pseudo-nitzschia: Present
– Alexandrium: None
– Dinophysis: Rare
– Margalefidinium: None
* Impressions *
This morning it was cloudy on the wharf with very small pockets of blue sky. There was a slight breeze but it was not a chilly morning. There were no boats docked at my site. The surface of the water was wavy. The water this week was the same color as two weeks ago with a visibility of 7.5m. Chlorophyll decreased slightly from two weeks ago. Diatoms dominated the water column. Chaetoceros was abundant in the water. Meanwhile, Pseudo-nitzschia was present. The HAB species that were observed in the water this morning included Pseudo-nitzschia, Dinophysis and Akashiwo sanguinea.
Dinoflagellates:
R: Akashiwo sanguinea
R: Prorocentrum spp.
R: Dinophysis spp.
R: Ceratium spp.
R: Protoperidinium spp.
R: Pyrocystis lunula
R: Lingulodinium polyedrum
R: Pyrophacus spp.
R: Amylax
Diatoms:
A: 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: Skeletonema spp.
R: Lauderia spp.
R: Cylindrotheca spp.
R: Asterionellopsis spp.
R: Proboscia spp.
R: Detonula spp.
R: Striatella spp.
R: Eucampia
R: Lioloma
Others:
R: Dictyocha spp.
R: Acantharians
Zooplankton:
R: fecal pellets, nauplii, tintinnids, calanoids, fish larvae, eggs
* Environmental Information *
TIME: 0658 PT
COLLECTOR: Hannah McGrath
Water Temperature: 13.0°C
Water Conditions: Wavy
Water Color: 10G 2/6
Visibility: 7.5 m
Tide: Rising, 1.31 m, high at 1025h
Chlorophyll: net: 2.117 mg/m^3 by in vivo RFU
Sky: cloudy, 95% cloud
Air Temperature: 13.89 °C
Wind: offline, 0.45 m/S
Rare (R): <1% ~~~ Present (P): 1 – 9% ~~~ Common (C): 10 – 49% ~~~ Abundant (A): >= 50%