Santa Cruz Wharf
Wednesday, February 12, 2025
* Quick HAB Observations *
– Pseudo-nitzschia: None
– Alexandrium: None
– Dinophysis: None
– Margalefidinium: None
* Impressions *
Cold and overcast at the wharf this morning, there was some rain overnight with more in the forecast. Net tow still had a fair amount of detritus/debris. Phytoplankton biomass increased this week, but diversity decreased. The phytoplankton assemblage shifted back to diatoms and was mostly Thalassiosira. No Pseudo-nitzschia were observed this week.
Dinoflagellates:
R: Ceratium
R: Prorocentrum
R: Protoperidinium
R: Noctiluca
Diatoms:
A: Thalassiosira
P: Chaetoceros
R: Skeletonema
R: Fragilariopsis
R: Pleurosigma
R: Asterionellopsis
Other:
R: Dictyocha
* Environmental Information *
Time: 8:00 am
Collector: A. Trapp
Water Conditions (SCW)
Water Temperature: 11.5 C
Water Conditions: Calm
Water Color/Code: Green, 10GY 2/4 (#30)
Water Visibility: 7 ft
Tide: Rising, High – 9:38, 5.5 ft
Surf Report: WSW swell, 3-4
NDBC buoy 46236
– Significant wave height: 1.0 m
– Swell height/direction: 0.8 m, WNW
– Wind wave height/direction: 0.6 m, ESE
Weather Conditions (KudelaHawk)
Sky: Overcast
Air Temperature: 43.2 F (6.2 C)
Wind: 6 mph, WNW
Solar radiation: 47 watts/m^2
Monterey Wharf II
Wednesday, February 12, 2025
* Quick HAB Observations *
– Pseudo-nitzschia: Rare
– Alexandrium: None
– Dinophysis: None
– Margalefidinium: None
* Impressions *
The wharf this morning was mostly cloudy and chilly with a slight breeze. There was not much in the water since it rained the night before. The surface water was relatively calm. The water this week was slightly greener than last week with a visibility of > 5.0 m. Visually chlorophyll was about the same as last week. Diatoms dominated the water column. Pleurosigma was abundant in the water. Thalassiosira and Detonula were present. The HAB species that were observed in the water this morning was Pseudo-nitzschia.
Dinoflagellates:
R: Prorocentrum spp.
R: Ceratium spp.
R: Amylax
Diatoms:
R: Chaetoceros spp.
P: Thalassiosira spp.
R: Coscinodiscus spp.
R: Pseudo-nitzschia spp.
A: Pleurosigma spp.
R: Navicula spp.
R: Licmophora spp.
R: Odontella spp.
R: Proboscia spp.
P: Detonula spp.
R: Entomoneis
Others:
R: Sponge spicule
Zooplankton:
R: fecal pellets, nauplii, tintinnids, calanoids, fish larvae, eggs
* Environmental Information *
TIME: 0815 PT
COLLECTOR: Hannah McGrath
Water Temperature: 12.0°C
Water Conditions: calm
Water Color: 5G 2/6
Visibility: > 5.0 m
Tide: Rising, 1.49m, high at 0944 h
Sky: cloudy, 90% cloud
Air Temperature: 7.22°C
Wind: offline, 2.68m/S
Rare (R): <1% ~~~ Present (P): 1 – 9% ~~~ Common (C): 10 – 49% ~~~ Abundant (A): >= 50%