Santa Cruz Wharf
Wednesday, June 7, 2023
* Quick HAB Observations *
– Pseudo-nitzschia: Rare
– Alexandrium: None
– Dinophysis: Rare
– Margalefidinium: None
* Impressions *
Overcast at the wharf this am. Once again, the net tow was mostly detritus/debris (significant increase from last week) and the phytoplankton biomass decreased (or were too hard to see among the junk). The assemblage remains mostly diatoms, with Chaetoceros and Guinardia being the most abundant. Pseudo-nitzschia were seriata size (none seen in the probed counts) and the Alexandrium counts dropped dramatically.
Dinoflagellates:
P: Protoperidinium
R: Dinophysis
R: LRB
R: Gymnodinium
R: Ceratium
R: Polykrikos
Diatoms:
C: Chaetoceros
C: Guinardia
C: Thalassiosira
P: Coscinodiscus
P: Fragilariopsis
P: Detonula
R: Skeletonema
R: Eucampia
R: Asteromphalus
R: Pseudo-nitzschia
R: Proboscia
R: Thalassionema
R: Ditylum
R: Pleurosigma
R: Paralia
R: Nitzschia
R: Licmophora
R: Tropidoneis
Other:
R: Oval flagellate
* Environmental Information *
Time: 8:30 am
Collector: M. Conci
Water Conditions (SCW)
Water Temperature: 13.0 C
Water Conditions: Calm
Water Color/Code: Green, 5G 2/6 (#31)
Water Visibility: 3 ft
Tide: Low – 8:19, -1.4 ft
Surf Report: WNW swell, 4-6 ft
NDBC buoy 46042
– Significant wave height: 4.6 ft
– Swell height/direction: 4.6 ft, S
– Wind wave height/direction: 1.0 ft, SW
Weather Conditions (KudelaHawk)
Sky: Overcast
Air Temperature: 57.9 F (14.3 C)
Wind: No wind
Solar radiation: 131 watts/m^2
Monterey Wharf II
Wednesday, June 7, 2023
* Quick HAB Observations *
– Pseudo-nitzschia: Common
– Alexandrium: Rare
– Dinophysis: Rare
– Margalefidinium: None
* Impressions *
This morning my sampling site was loud from a truck (golden state portables). It was misting on the wharf and the sky was covered in clouds. On the surface of the water, a sea lion was playing with a floating whole small watermelon. There were several boats docked at my site. The water this week was slightly greener than last week with a visibility of 4.5m. Chlorophyll increased from last week. Both Chaetoceros and Pseudo-nitzschia were common in the water. Cylindrotheca and Guinardia were present. The HAB species that were observed in the water this morning included Pseudo-nitzschia, Alexandrium, and Dinophysis.
Dinoflagellates:
R: Prorocentrum spp.
R: Dinophysis spp.
R: Ceratium spp.
R: Gonyaulax spinifera
R: Protoperidinium spp.
R: Alexandrium spp.
R: Noctiluca spp.
R: Gyrodinium spp. (pink tipped)
R: Polykrikos spp.
R: Amylax
Diatoms:
C: Chaetoceros spp.
R: Thalassiosira spp.
R: Coscinodiscus spp.
C: Pseudo-nitzschia spp.
R: Ditylum spp.
P: Guinardia spp.
R: Pleurosigma spp.
R: Thalassionema spp.
R: Skeletonema spp.
R: Tropidoneis spp.
R: Lauderia spp.
R: Navicula spp.
P: Cylindrotheca spp.
R: Bacillaria spp.
R: Licmophora spp.
R: Asteromphalus spp.
R: Leptocylindrus spp.
R: Asterionellopsis spp.
R: Detonula spp.
R: Eucampia
Others:
R: Dictyocha spp.
Zooplankton:
R: fecal pellets, nauplii, tintinnids, calanoids, fish larvae, eggs
* Environmental Information *
TIME: 0722 PT
COLLECTOR: Hannah McGrath
Water Temperature: 13.61°C
Water Conditions: Calm
Water Color: 5Y 2/2
Visibility: 4.5 m
Tide: falling, -0.30m, low at 0814 h
Chlorophyll: 13.883mg/m^3 by in vivo RFU
Sky: sunny/ clear skies, 100% cloud
Air Temperature: 13.89°C
Wind: NA, 0.89 m/S
Rare (R): <1% ~~~ Present (P): 1 – 9% ~~~ Common (C): 10 – 49% ~~~ Abundant (A): >= 50%