Santa Cruz Wharf
Wednesday, March 29, 2023
* Quick HAB Observations *
– Pseudo-nitzschia: Present
– Alexandrium: None
– Dinophysis: None
– Margalefidinium: None
* Impressions *
Another rainy and windy morning at the wharf. Water color was less brown (had more green) and the salinity was back up to ~32ppt. Net tow remains mostly detritus/debris, but phytoplankton biomass did increase this week. Assemblage was mostly diatoms and Skeletonema and Chaetoceros were the most abundant. Pseudo-nitzschia were seriata-size, but none were observed in the probed counts.
Dinoflagellates:
R: Ceratium
R: Protoperidinium
Diatoms:
C: Skeletonema
C: Thalassiosira
C: Chaetoceros
C: Paralia
P: Detonula
P: Pseudo-nitzschia
P: Odontella
P: Lauderia
P: Thalassionema
R: Coscinodiscus
R: Actinoptychus
R: Ditylum
R: Pleurosigma
Other:
R: Ebria
* Environmental Information *
Time: 8:45 am
Collector: M. Conci
Water Conditions (SCW)
Water Temperature: 11.2 C
Water Conditions: Large swell
Water Color/Code: Brown, 5GY 3/4 (#28)
Water Visibility: 1 ft
Tide: Falling, Low – 12:53, 0.2 ft
Surf Report: WNW swell, 5-7 ft
NDBC buoy 46042
– Significant wave height: 14.8 ft
– Swell height/direction: 13.8 ft, WNW
– Wind wave height/direction: 5.9 ft, W
Weather Conditions (KudelaHawk)
Sky: Rainy and windy
Air Temperature: 50.0 F (10.0 C)
Wind: 15 mph, ENE
Solar radiation: 21 watts/m^2
Monterey Wharf II
Wednesday, March 29, 2023
* Quick HAB Observations *
– Pseudo-nitzschia: Present
– Alexandrium: None
– Dinophysis: None
– Margalefidinium: None
* Impressions *
This morning there was a slight breeze on the dock and the water was murkier than usual. There were also many seabirds and large pieces of plastic floating on the surface of the water. Large rolling waves and swells formed right under the dock. Nearly half of the sky was covered with clouds; dark clouds covered the mountains in the distance. The water this week was much greener than last week with a visibility of 1.25m. Chlorophyll increased from last week. Both Chaetoceros, P. nitzschia and Coscinodiscus were present in the water. Thalassiosira was common in the water. The HAB species that were present in the water this morning included P. nitzschia.
Dinoflagellates:
R: Ceratium spp.
R: Protoperidinium spp.
R: Noctiluca spp.
R: Gyrodinium spp. (grey green)
Diatoms:
P: Chaetoceros spp.
C: Thalassiosira spp.
P: Coscinodiscus spp.
P: Pseudo-nitzschia spp.
R: Ditylum spp.
R: Pleurosigma spp.
R: Thalassionema spp.
R: Skeletonema spp.
R: Tropidoneis spp.
R: Lauderia spp.
R: Navicula spp.
R: Cylindrotheca spp.
R: Bacillaria spp.
R: Licmophora spp.
R: Odontella spp.
R: Asteromphalus spp.
R: Asterionellopsis spp.
R: Detonula spp.
R: Entomoneis
R: Actinoptychus
Others:
R: Dictyocha spp.
Zooplankton:
R: fecal pellets, nauplii, tintinnids, calanoids, fish larvae, eggs
* Environmental Information *
TIME: 0729 PT
COLLECTOR: Hannah McGrath
Water Temperature: 11.89°C
Water Conditions: murky, active waves
Water Color: 5Y 3/4
Visibility: 1.25m
Tide: Falling, 1.01 m, low at 1254 h
Chlorophyll: 9.732mg/m^3 by in vivo RFU
Sky: sunny/cloudy, 40% cloud
Air Temperature: 8.89°C
Wind: NA, 4.02 m/S
Rare (R): <1% ~~~ Present (P): 1 – 9% ~~~ Common (C): 10 – 49% ~~~ Abundant (A): >= 50%