Santa Cruz Wharf
Wednesday, September 7, 2022
* Quick HAB Observations *
– Pseudo-nitzschia: None
– Alexandrium: Rare
– Dinophysis: Rare
– Margalefidinium: Present
* Impressions *
Sunny and warm this am – halfway through the heat wave. No sign of the bait ball this week. Net tow was mostly dinoflagellates and the phytoplankton biomass increased this week. Akashiwo was the most abundant. Alexandrium counts increased – saw some 8-cell chains.
Dinoflagellates:
A: Akashiwo
C: Ceratium
P: Margalefidinium
P: Gymnodinium
P: Gyrodinium
R: Oxyphysis
R: Dinophysis
R: Alexandrium
R: Prorocentrum
R: Protoperidinium
R: Polykrikos
R: Scrippsiella
R: LRB
Diatoms:
R: Navicula
R: Thalassiosira
R: Leptocylindrus
R: Lauderia
R: Asteromphalus
R: Coscinodiscus
R: Thalassionema
Other:
P: Unknown flagellate
R: Dictyocha
* Environmental Information *
Time: 7:50 am
Collector: P. Daniel
Water Conditions (SCW)
Water Temperature: 16.1 C
Water Conditions: Strong surge
Water Color/Code: Green, 10G 2/6 (#12)
Water Visibility: 5 ft
Tide: Rising, High – 9:48, 4.0 ft
Surf Report: NW swell, 2-5 ft
NDBC buoy 46042
– Significant wave height: 6.9 ft
– Swell height/direction: 6.9 ft, WNW
– Wind wave height/direction: 1.0 ft, WNW
Weather Conditions (KudelaHawk)\
Sky: Sunny
Air Temperature: 61.1 F (16.2 C)
Wind: 2 mph, W
Solar radiation: 34 watts/m^2
Monterey Wharf II
Wednesday, September 7, 2022
* Quick HAB Observations *
– Pseudo-nitzschia: Rare
– Alexandrium: None
– Dinophysis: Rare
– Margalefidinium: Rare
* Impressions *
The sky was mostly clear. Only toward the horizon were there wispy clouds. The sun was rising from the east. Many birds accompanied me during sampling. Similar to last week, two sea lions greeted me. The water was very calm and there was no wind. The color of the water was slightly lighter and greener than last week. However, visibility in the water column decreased by ~2.5 m compared to last week (6.5 m). Chlorophyll abundance significantly decreased from last week. California is currently experiencing a heat wave. Chaetoceros decreased in abundance. Pseudo-nitzschia abundance was observed as rare and decreased from last week. Dinophysis, Cochlodinium, and Akashiwo all appeared in the sample.
Dinoflagellates:
R: Akashiwo sanguinea
R: Prorocentrum gracile
R: Dinophysis spp.
R: Ceratium spp.
R: Protoperidinium spp.
R: Scrippsiella spp.
R: Gyrodinium spp. (grey green)
R: Pyrocystis lunula
R: Polykrikos spp.
R: Cochlodinium spp.
R: Lingulodinium polyedrum
R: Boreadinium cf
R: Oxyphysis
Diatoms:
C: Chaetoceros spp.
P: Thalassiosira spp.
R: Coscinodiscus spp.
R: Pseudo-nitzschia spp.
R: Ditylum spp.
R: Guinardia spp.
R: Pleurosigma spp.
R: Rhizosolenia spp.
R: Thalassionema spp.
R: Melosira spp.
R: Tropidoneis spp.
R: Lauderia spp.
R: Navicula spp.
R: Cylindrotheca spp.
R: Licmophora spp.
R: Odontella spp.
R: Asteromphalus spp.
R: Leptocylindrus spp.
R: Proboscia spp.
R: Detonula spp.
R: Eucampia
Others:
R: Dictyocha spp.
Zooplankton:
R: fecal pellets, nauplii, tintinnids, calanoids, fish larvae, eggs
* Environmental Information *
TIME: 0709 PT
COLLECTOR: Hannah McGrath
Water Temperature: 20.28 °C
Water Conditions: Calm
Water Color: 10GY 3/4
Visibility: 4.0 m
Tide: Rising, 0.79 m, high 0949 h
Chlorophyll: 10.990 mg/m^3 by in vivo RFU
Sky: wispy clouds near the horizon, 10% cloud
Air Temperature: 16.11°C
Wind: SSE, 0.45 m/S
Rare (R): <1% ~~~ Present (P): 1 – 9% ~~~ Common (C): 10 – 49% ~~~ Abundant (A): >= 50%