Santa Cruz Wharf
Wednesday, October 12, 2022
* Quick HAB Observations *
– Pseudo-nitzschia: None
– Alexandrium: None
– Dinophysis: Common
– Margalefidinium: Abundant
* IMPRESSIONS *
Cool with a marine layer at the wharf this am, bait ball still hanging out in the sampling area. Net tow was mostly detritus/debris this week with a decrease in phytoplankton biomass and diversity. Phytoplankton assemblage was mostly dinoflagellates and Margalefidinium (mostly doublets) were the most abundant. Alexandrium counts decreased again.
Dinoflagellates:
A: Margalefidinium
C: Dinophysis
P: Akashiwo
P: Ceratium
R: Prorocentrum
R: Protoperidinium
R: Gymnodinium
R: Oxyphysis
R: Polykrikos
R: Scrippsiella
Diatoms:
R: Thalassiosira
R: Coscinodiscus
R: Asteromphalus
R: Paralia
* Environmental Information *
Time: 7:20 am
Collector: P. Daniel
Water Conditions (SCW)
Water Temperature: 14.9 C
Water Conditions: Calm
Water Color/Code: Green, 5GY 2/2 (#17)
Water Visibility: 3 ft
Tide: Rising, Low – 6:04, 1.9 ft
Surf Report: SSW swell, 2.4 ft
NDBC buoy 46042
– Significant wave height: 5.2 ft
– Swell height/direction: 5.2 ft, NW
– Wind wave height/direction: 1.0 ft, W
Weather Conditions (KudelaHawk)
Sky: Foggy/marine layer
Air Temperature: 56.7 F (13.7 C)
Wind: 4 mph, W
Solar radiation: 1 watts/m^2
Monterey Wharf II
Wednesday, October 12, 2022
* Quick HAB Observations *
– Pseudo-nitzschia: Abundant
– Alexandrium: Rare
– Dinophysis: Rare
– Margalefidinium: Rare
* IMPRESSIONS *
On the wharf this morning the sky was filled with clouds and the visibility was hazy. However, I was able to identify the horizon. There was a slight breeze on the dock and one fisherman was sampling beside me. The surface water had relatively calm waves. The water this week was slightly greener and lighter than last week with a visibility of 5.5m. Chlorophyll increased from last week with P. nitzschia being the most abundant species. Other HAB species that were present in the water this morning included Alexandrium, Dinophysis, Cochlodinium, and Akashiwo sanguinea.
Dinoflagellates:
R: Akashiwo sanguinea
R: Prorocentrum spp.
R: Dinophysis spp.
R: Ceratium spp.
R: Protoperidinium spp.
R: Alexandrium spp.
R: Scrippsiella spp.
R: Cochlodinium spp.
R: Amylax
Diatoms:
P: Chaetoceros spp.
R: Thalassiosira spp.
R: Coscinodiscus spp.
A: Pseudo-nitzschia spp.
R: Ditylum spp.
R: Guinardia spp.
R: Pleurosigma spp.
R: Melosira spp.
R: Tropidoneis spp.
R: Lauderia spp.
R: Navicula spp.
R: Asteromphalus spp.
R: Asterionellopsis spp.
R: Detonula spp.
R: Paralaria spp.
R: Eucampia
R: Lioloma
Others:
R: Dictyocha spp.
Zooplankton:
R: fecal pellets, nauplii, tintinnids, calanoids, fish larvae, eggs
* Environmental Information *
TIME: 0718 PT
COLLECTOR: Hannah McGrath
Water Temperature: 19.0 °C
Water Conditions: Calm
Water Color: 10GY2/4
Visibility: 5.5 m
Tide: Rising, 0.70m, high at 1212 h
Chlorophyll: 9.297mg/m^3 by in vivo RFU
Sky: cloudy, 100% cloud
Air Temperature: 13.89°C
Wind: SSE, 1.34 m/S
Rare (R): <1% ~~~ Present (P): 1 – 9% ~~~ Common (C): 10 – 49% ~~~ Abundant (A): >= 50%