Santa Cruz Wharf
Wednesday, November 29, 2023
* Quick HAB Observations *
– Pseudo-nitzschia: Rare
– Alexandrium: Rare
– Dinophysis: None
– Margalefidinium: Rare
* Impressions *
Rain overnight, but skies were clearing over the wharf this morning. Net tow remains mostly dinoflagellates. Phytoplankton biomass increased this week and Akashiwo was the most abundant. Saw a 4-cell chain of seriata-size Pseudo-nitzschia, but no P. australis or P. multiseries. Alexandrium counts decreased by half from last week.
Dinoflagellates:
A: Akashiwo
R: Prorocentrum
R: Lingulodinium
R: Ceratium
R: Protoperidinium
R: Gonyaulax
R: Margalefidinium
R: Alexandrium
R: LRB
Diatoms:
R: Thalassiosira
R: Chaetoceros
R: Coscinodiscus
R: Pleurosigma
R: Fragilariopsis
R: Pseudo-nitzschia
* Environmental Information *
Time: 9:00 am
Collector: M. Conci
Water Conditions (SCW)
Water Temperature: 13.8 C
Water Conditions: Small swell
Water Color/Code: Dark green, 10G 2/6 (#12)
Water Visibility: 5 ft
|Tide: Rising, High – 10:31, 6.0 ft
Surf Report: W swell, 3-4 ft
NDBC buoy 46042 (drifting since 25Nov23)
– Significant wave height: NA
– Swell height/direction: NA
– Wind wave height/direction: NA
Weather Conditions (KudelaHawk)
Sky: Partly cloudy
Air Temperature: 54.0 F (12.2 C)
Wind: 5 mph, WNW Solar radiation: 134 watts/m^2
Monterey Wharf II
Wednesday, November 29, 2023
* Quick HAB Observations *
– Pseudo-nitzschia: Rare
– Alexandrium: Rare
– Dinophysis: Rare
– Margalefidinium: Rare
* Impressions *
The wharf this morning was chilly and cloudy. The moon was full and out. The surface of the water was covered in streaks of what looked like oil and dirt. There were many jellyfish (I believe moon jellies) in the water. I was worried it would clog my phytoplankton net. The water this week was bluer than last week with a visibility of 8.5m! Chlorophyll increased from last week. Dinoflagellates dominated the water column. Lingulodinium was abundant in the water. Ceratium was common. Akashiwo was present. The HAB species that were observed in the water this morning included Pseudo-nitzschia, Alexandrium, Dinophysis, Cochlodinium, and Akashiwo sanguinea.
Dinoflagellates:
P: Akashiwo sanguinea
R: Prorocentrum spp.
R: Dinophysis spp.
C: Ceratium spp.
R: Gonyaulax spinifera
R: Protoperidinium spp.
R: Alexandrium spp.
R: Cochlodinium spp.
A: Lingulodinium polyedrum
R: Pyrophacus spp.
R: Amylax
Diatoms:
R: Chaetoceros spp.
R: Thalassiosira spp.
R: Coscinodiscus spp.
R: Rhizosolenia spp.
R: Lauderia spp.
R: Navicula spp.
R: Odontella spp.
R: Asteromphalus spp.
Others:
R: Dictyocha spp.
Zooplankton:
R: fecal pellets, nauplii, tintinnids, calanoids, fish larvae, eggs
* Environmental Information *
TIME: 0656 PT
COLLECTOR: Hannah McGrath
Water Temperature: NA
Water Conditions: wavy, streaks of oil/dirt on the surface, many jellyfish
Water Color: 5BG 2/6
Visibility: 8.5 m
Tide: Rising, 1.19 m, high at 1032 h
Chlorophyll: 6.486mg/m^3 by in vivo RFU
Sky: cloudy, 90% cloud
Air Temperature: 11.11°C
Wind: offline, 5.36m/S
Rare (R): <1% ~~~ Present (P): 1 – 9% ~~~ Common (C): 10 – 49% ~~~ Abundant (A): >= 50%