Santa Cruz Wharf
Wednesday, October 19, 2022
* Quick HAB Observations *
– Pseudo-nitzschia: Rare
– Alexandrium: Rare
– Dinophysis: Present
– Margalefidinium: Common
* Impressions *
Sunny and cool at the wharf this am. Phytoplankton biomass was similar to last week (low-ish), but diversity increased this week. The net tow was mostly dinoflagellates and once again, Margalefidinium was the most abundant. Pseudo-nitzschia were delicatissima size and Alexandrium counts increased this week.
Dinoflagellates:
C: Margalefidinium
C Ceratium
P: Dinophysis
P: Akashiwo
P: Prorocentrum
R: Protoperidinium
R: Gymnodinium
R: Alexandrium
R: Polykrikos
R: Scrippsiella
R: Boreadinium
R: LRB
Diatoms:
R: Thalassiosira
R: Coscinodiscus
R: Chaetoceros
R: Paralia
R: Guinardia
R: Lauderia
R: Pleurosigma
R: Pseudo-nitzschia
R: Thalassionema
R: Cocconeis
R: Actinoptychus
* Environmental Information *
Time: 7:45 am
Collector: P. Daniel
Water Conditions (SCW)
Water Temperature: 14.9 C
Water Conditions: Calm, some swell
Water Color/Code: Green/blue, 5GB 2/6 (#15)
Water Visibility: 3 ft
Tide: Rising, High – 8:23, 3.9 ft
Surf Report: WNW swell, 5-7 ft
NDBC buoy 46042
– Significant wave height: 7.5 ft
– Swell height/direction: 7.5 ft, WNW
– Wind wave height/direction: 1.0 ft, NW
Weather Conditions (KudelaHawk)
Sky: Sunny
Air Temperature: 58.6 F (14.8 C)
Wind: 5 mph, WNW
Solar radiation: 31 watts/m^2
Monterey Wharf II
Wednesday, October 19. 2022
* Quick HAB Observations *
– Pseudo-nitzschia: Present
– Alexandrium: Rare
– Dinophysis: Rare
– Margalefidinium: Rare
* Impressions *
This morning the sunrise was beautiful. The sky was painted with yellow, pink, and orange. There were clear skies directly above me and there was a slight blanket of haze/fog lining the horizon. Beneath my sampling site there was a sea lion jumping and 4 sea otters swimming on their backs. There were large slow rolling waves on the surface of the water moving in the direction towards the dock. The water this week was a slightly darker green than last week with a visibility of 4.5m. Chlorophyll significantly decreased from last week. Both Chaetoceros and P. nitzschia were present in the water. The HAB species that were present in the water this morning included P. nitzschia, Alexandrium, Dinophysis, Cochlodinium, and Akashiwo sanguinea.
Dinoflagellates:
R: Akashiwo sanguinea
R: Prorocentrum spp.
R: Dinophysis spp.
R: Ceratium spp.
R: Gonyaulax spinifera
R: Scrippsiella spp.
R: Gyrodinium spp. (grey green)
R: Polykrikos spp.
R: Cochlodinium spp.
R: Amylax
Diatoms:
P: 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: Melosira spp.
R: Tropidoneis spp.
R: Lauderia spp.
R: Navicula spp.
R: Cylindrotheca spp.
R: Odontella spp.
R: Asteromphalus spp.
R: Asterionellopsis spp.
R: Detonula spp.
R: Paralaria spp.
R: Striatella spp.
Others:
R: Dictyocha spp.
Zooplankton:
R: fecal pellets, nauplii, tintinnids, calanoids, fish larvae, eggs
TIME: 0720 PT
COLLECTOR: Hannah McGrath
Water Temperature: 20.28°C
Water Conditions: Rolling waves
Water Color: 10Y 2/2
Visibility: 4.5 m
Tide: Rising, 1.19 m, high at 0823h
Chlorophyll: net: 0.137mg/m^3; whole water: 5.706mg/m^3 by in vivo RFU
Sky: sunny/ clear skies, 2% cloud
Air Temperature: 17.78°C
Wind: S, 3.13 m/S
Rare (R): <1% ~~~ Present (P): 1 – 9% ~~~ Common (C): 10 – 49% ~~~ Abundant (A): >= 50%