Santa Cruz Wharf
Wednesday, January 17, 2024
* Quick HAB Observations *
– Pseudo-nitzschia: Present
– Alexandrium: Rare
– Dinophysis: Present
– Margalefidinium: None
* Impressions *
Rain overnight with a lingering sprinkle this morning at the wharf. Net tow remains mostly detritus/debris, but phytoplankton biomass increased this week. The phytoplankton assemblage shifted slightly and Ceratium and Chaetoceros were the most abundant. Pseudo-nitzschia cells were seriata-size and chains were mostly 4-cells long. P. australis were seen in the probed counts, but no P. multiseries or Alexandrium.
Dinoflagellates:
C: Ceratium
C: Lingulodinium
P: Dinophysis
P: Gymnodinium
R: Akashiwo
R: Protoperidinium
R: Prorocentrum
R: Alexandrium
R: Boreadinium
R: Oxytoxum
R: LRBs
Diatoms:
C: Chaetoceros
P: Thalassiosira
P: Pseudo-nitzschia
P: Skeletonema
R: Pleurosigma
R: Thalassionema
R: Navicula
R: Coscinodiscus
R: Asterionellopsis
R: Detonula
R: Guinardia
R: Ditylum
Other:
P: Ebria
R: Dictyocha
* Environmental Information *
Time: 9:00 am
Collector: M. Conci
Water Conditions (SCW)
Water Temperature: 13.3 C
Water Conditions: Small, short period swell
Water Color/Code: Dark green, 5G 2/6 (#31)
Water Visibility: 4 ft
Tide: Falling, Low – 9:59, 1.6 ft
Surf Report: WNW swell, 4-6 ft
NDBC buoy 46042 (drifting since 25Nov23)
– Significant wave height: NA
– Swell height/direction: NA
– Wind wave height/direction: NA
Weather Conditions (KudelaHawk)
Sky: Overcast w/light sprinkle
Air Temperature: 53.8 F (12.1 C)
Wind: 1 mph, WNW
Solar radiation: 61 watts/m^2
Monterey Wharf II
Wednesday, January 17, 2024
* Quick HAB Observations *
– Pseudo-nitzschia: Common
– Alexandrium: None
– Dinophysis: Rare
– Margalefidinium: Rare
* Impressions *
The wharf this morning was relatively warm but cloudy and drizzling. The horizon was covered with fog. The surface of the water was calm. There were no boats docked nearby. The water this week was more blue than last week with a visibility of 6.5m. Chlorophyll slightly increased from last week. Dinoflagellates dominated the water column. Pseudo-nitzschia, Lingulodinium, and Ceratium were common in the water. Prorocentrum and Protoperidinium. The HAB species that were observed in the water this morning included Pseudo-nitzschia, Dinophysis, Cochlodinium, and Akashiwo sanguinea.
Dinoflagellates:
R: Akashiwo sanguinea
P: Prorocentrum spp.
R: Dinophysis spp.
C: Ceratium spp.
R: Gonyaulax spinifera
P: Protoperidinium spp.
R: Gyrodinium spp. (pink tipped)
R: Cochlodinium spp.
C: Lingulodinium polyedrum
R: Pyrophacus spp.
R: Amylax
Diatoms:
R: Chaetoceros spp.
R: Coscinodiscus spp.
C: Pseudo-nitzschia spp.
x: Ditylum spp.
R: Guinardia spp.
R: Pleurosigma spp.
R: Navicula spp.
R: Cylindrotheca spp.
R: Asteromphalus spp.
R: Cerataulina spp.
Others:
R: Dictyocha spp.
R: sponge spicule
Zooplankton:
R: fecal pellets, nauplii, tintinnids, calanoids, fish larvae, eggs
* Environmental Information *
TIME: 0726 PT
COLLECTOR: Hannah McGrath
Water Temperature: 13.0°C
Water Conditions: calm
Water Color: 5BG 2/6
Visibility: 6.5 m
Tide: Falling, 0.76m, low at 0953 h
Chlorophyll: 4.128mg/m^3 by in vivo RFU
Sky: cloudy/drizzling, 100% cloud
Air Temperature: 12.78°C
Wind: offline, 3.13m/S
Rare (R): <1% ~~~ Present (P): 1 – 9% ~~~ Common (C): 10 – 49% ~~~ Abundant (A): >= 50%