Santa Cruz Wharf
Wednesday, April 3, 2023
* Quick HAB Observations *
– Pseudo-nitzschia: Rare
– Alexandrium: Rare
– Dinophysis: None
– Margalefidinium: None
* Impressions *
After weeks of dreary Wednesdays, it was finally sunny this morning at the wharf. The pigeon guillemots have arrived, marking the official start of SCW spring. Phytoplankton biomass was similar to last week (with dramatically less detritus/debris). Net tow was mostly diatoms and Thalassiosira was the most abundant. Pseudo-nitzschia were seriata-size.
Dinoflagellates:
R: Ceratium
R: Protoperidinium
R: Alexandrium
R: LRB
Diatoms:
A: Thalassiosira
P: Skeletonema
P: Thalassionema
P: Detonula
R: Pseudo-nitzschia
R: Odontella
R: Lauderia
R: Chaetoceros
R: Coscinodiscus
R: Asterionellopsis
R: Ditylum
R: Rhizosolenia
R: Pleurosigma
R: Fragilariopsis
R: Entomoneis
R: Cylindrotheca
Other:
R: Ebria
* Environmental Information *
Time: 8:30 am
Collector: M. Conci
Water Conditions (SCW)
Water Temperature: 11.3 C
Water Conditions: Calm
Water Color/Code: Blue, 10BG 2/6 (#14)
Water Visibility: 3 ft
Tide: Rising, High – 10:46, 4.4 ft
Surf Report: NW swell, 0-1 ft
NDBC buoy 46042
– Significant wave height: 6.2 ft
– Swell height/direction: 5.2 ft, NW
– Wind wave height/direction: 3.0 ft, NW
Weather Conditions (KudelaHawk)
Sky: Sunny
Air Temperature: 45.1 F (7.3 C)
Wind: 4 mph, W
Solar radiation: 264 watts/m^2
Monterey Wharf II
Wednesday, April 3, 2023
* Quick HAB Observations *
– Pseudo-nitzschia: Rare
– Alexandrium: Rare
– Dinophysis: Rare
– Margalefidinium: None
* Impressions *
This morning the dock was sunny and relatively warm with a slight breeze. There were many gnats near the docks. In addition, there were several birds of different species resting/ floating on the surface of the water. In fact, another scientist this morning joined me during sampling and saw an octopus being eaten by a seabird. Meanwhile other sea birds were eating kelp that was attached to the dock. There were small waves on the surface of the water. The water this week was greener than last week with a visibility of 2.5m. Chlorophyll stayed relatively the same as last week. Both Thalassiosira and Skeletonema were common in the water. While Asterionellopsis was present in the water. The HAB species that were present in the water this morning included P. nitzschia, Alexandrium and Dinophysis.
Dinoflagellates:
R: Dinophysis spp.
R: Ceratium spp.
R: Protoperidinium spp.
R: Alexandrium spp.
R: Gyrodinium spp. (grey green)
R: Oxyphysis
Diatoms:
R: Chaetoceros spp.
C: Thalassiosira spp.
R: Coscinodiscus spp.
R: Pseudo-nitzschia spp.
R: Ditylum spp.
R: Pleurosigma spp.
R: Thalassionema spp.
C: Skeletonema spp.
R: Tropidoneis spp.
R: Lauderia spp.
R: Navicula spp.
R: Cylindrotheca spp.
R: Licmophora spp.
R: Odontella spp.
P: Asterionellopsis spp.
R: Detonula spp.
R: Entomoneis
Others:
R: Dictyocha spp.
R: Acantharians
Zooplankton:
R: fecal pellets, nauplii, tintinnids, calanoids, fish larvae, eggs
* Environmental Information *
TIME: 0743 PT
COLLECTOR: Hannah McGrath
Water Temperature: 12.22°C
Water Conditions: Rolling waves
Water Color: 10Y 3/4
Visibility: 2.5 m
Tide: Rising, 0.64 m, high at 1051 h
Chlorophyll: 7.100mg/m^3 by in vivo RFU
Sky: sunny/ clear skies, 2% cloud
Air Temperature: 8.33°C
Wind: NA, 1.34 m/S
Rare (R): <1% ~~~ Present (P): 1 – 9% ~~~ Common (C): 10 – 49% ~~~ Abundant (A): >= 50%