Santa Cruz Wharf
Wednesday, October 16, 2024
* Quick HAB Observations *
– Pseudo-nitzschia: None
– Alexandrium: Rare
– Dinophysis: Rare
– Margalefidinium: Present
* Impressions *
Overcast at the wharf this morning. Phytoplankton biomass decreased this week and the net tow remains mostly dinoflagellates. Akashiwo decreased from last week, but was still the most abundant. Saw several 2-cell chains of Margalefindinium this week as well. No Pseudo-nitzschia were observed. Alexandrium counts decreased this week.
Dinoflagellates:
A: Akashiwo
C: Ceratium
P: Prorocentrum
P: Gymnodinium
P: Margalefidinium
R: Alexandrium
R: Oxyphysis
R: Dinophysis
R: Protoperidinium
R: Gyrodinium
R: Polykrikos
R: Oxytoxum
R: LRB
R: Pyrophacus
Diatoms:
R: Lauderia
R: Fragilariopsis
R: Pleurosigma
R: Asteromphalus
R: Coscinodiscus
R: Entomoneis
* Environmental Information *
Time: 9:15 am
Collector: M. Conci
Water Conditions (SCW)
Water Temperature: 15.7 C
Water Conditions: Calm
Water Color/Code: Light brown/green, 5GY 3/4 (#28)
Water Visibility: 4 ft
Tide: Rising, High – 9:52, 5.6 ft
Surf Report: NW swell, 5-7 ft
Weather Conditions (KudelaHawk)
Sky: Overcast
Air Temperature: 56.5 F (13.6 C)
Wind: 3 mph, N
Solar radiation: 169 watts/m^2
Monterey Wharf II
Wednesday, October 16, 2024
* Quick HAB Observations *
– Pseudo-nitzschia: Rare
– Alexandrium: Rare
– Dinophysis: Present
– Margalefidinium: Rare
* Impressions *
The wharf this morning was foggy and cloudy. However, while I was sampling the fog lifted and the colorful sky peeked through the clouds. The surface water glimmered with small silver fish and was wavy. The water this week was the same color as last week with a visibility of 3.5m. Chlorophyll decreased from last week (visually from the net tow RAI). Dinoflagellates dominated the water column. Akashiwo, Prorocentrum and Ceratium were common. Chaetoceros and Dinophysis were present. The HAB species that were observed in the water this morning included Pseudo-nitzschia, Alexandrium, Dinophysis, Cochlodinium, and Akashiwo sanguinea.
Dinoflagellates:
C: Akashiwo sanguinea
C: Prorocentrum spp.
P: Dinophysis spp.
C: Ceratium spp.
R: Gonyaulax spinifera
R: Protoperidinium spp.
P: Alexandrium spp.
R: Scrippsiella spp.
R: Gyrodinium spp.
R: Polykrikos spp.
R: Cochlodinium spp.
R: Lingulodinium polyedrum
R: Oxyphysis
R: Pyrophacus spp.
R: Amylax
Diatoms:
P: Chaetoceros spp.
R: Thalassiosira spp.
R: Coscinodiscus spp.
R: Pseudo-nitzschia spp.
R: Guinardia spp.
R: Pleurosigma spp.
R: Lauderia spp.
R: Navicula spp.
R: Cylindrotheca spp.
R: Licmophora spp.
R: Odontella spp.
R: Leptocylindrus spp.
R: Eucampia
Others:
R: Dictyocha spp.
R: Oligiotrich
R: Sponge spicule
Zooplankton:
R: fecal pellets, nauplii, tintinnids, calanoids, fish larvae, eggs
* Environmental Information *
TIME: 0703 PT (note sunrise 0715)
COLLECTOR: Hannah McGrath
Water Temperature: 15.0°C
Water Conditions: wavy
Water Color: 5G Y 2/2
Visibility: 3.5 m
Tide: Rising, 1.01m, high at 0958 h
Sky: cloudy, 70% cloud
Air Temperature: 13.0°C
Wind: offline, 0.89m/S
Rare (R): <1% ~~~ Present (P): 1 – 9% ~~~ Common (C): 10 – 49% ~~~ Abundant (A): >= 50%