Santa Cruz Wharf
Wednesday, July 3, 2024
* Quick HAB Observations *
– Pseudo-nitzschia: Rare
– Alexandrium: Present
– Dinophysis: Present
– Margalefidinium: Rare
* Impressions *
Sunny and warm this morning at the wharf. Net tow was mostly dinoflagellates, but phytoplankton biomass decreased slightly this week. The phytoplankton assemblage shifted a bit as well and Akashiwo were the most abundant. Oxyphysis were also a larger part of the community this week, which was unusual. Alexandrium counts decreased an order of magnitude. Pseudo-nitzschia were seriata size, but P. australis and P. multiseries were not detected in the probed counts.
Dinoflagellates:
C: Akashiwo
C: Oxyphysis
P: Alexandrium
P: Dinophysis
P: Ceratium
P: LRB
R: Protoperidinium
R: Gymnodinium
R: Prorocentrum
R: Margalefidinium
R: Polykrikos
R: Boreadinium
R: Gyrodinium
Diatoms:
C: Chaetoceros
P: Guinardia
P: Lauderia
P: Eucampia
R: Fragilariopsis
R: Pseudo-nitzschia
R: Thalassiosira
R: Coscinodiscus
R: Asteromphalus
R: Skeletonema
R: Leptocylindrus
R: Entomoneis
R: Ditylum
R: Odontella
R: Detonula
R: Licmophora
R: Thalassionema
R: Rhizosolenia
R: Navicula
R: Asterionellopsis
R: Tropidoneis
Other:
R: Dictyocha
* Environmental Information *
Time: 9:20 am
Collector: K. Negrey
Water Conditions (SCW)
Water Temperature: 15.2 C
Water Conditions: Calm
Water Color/Code: Green/blue, 5G 2/6 (#31)
Water Visibility: 5 ft
Tide: Rising, High – 10:39, 3.5 ft
Surf Report: NW swell, 3-4 ft
Weather Conditions (KudelaHawk)
Sky: Sunny
Air Temperature: 61 F (16.1 C)
Wind: 2 mph, E
Solar radiation: 519 watts/m^2
Monterey Wharf II
Wednesday, July 3, 2024
* Quick HAB Observations *
– Pseudo-nitzschia: None
– Alexandrium: Rare
– Dinophysis: Rare
– Margalefidinium: None
* Impressions *
The wharf this morning was warm and sunny. Not a cloud in the sky. There was a slight breeze. The surface of the water was calm. The water this week was greener than last week with a visibility of 4.5m. Chlorophyll decreased from last week. Dinoflagellates dominated the water column. Chaetoceros, Prorocentrum, Pyrophacus, Oxyphysis, Heterocapsa, and Scripsiella were present in the water. The HAB species that were observed in the water this morning included Dinophysis, Alexandrium, and Akashiwo sanguinea.
Dinoflagellates:
R: Akashiwo sanguinea
P: Prorocentrum spp.
R: Dinophysis spp.
R: Gonyaulax spinifera
R: Protoperidinium spp.
R: Alexandrium spp.
R: Scrippsiella spp.
R: Gyrodinium spp.
R: Polykrikos spp.
P: Oxyphysis
P: Pyrophacus spp.
P: Heterocapsa spp.
R: Amylax
Diatoms:
R: Chaetoceros spp.
R: Thalassiosira spp.
R: Coscinodiscus spp.
R: Pseudo-nitzschia spp.
R: Ditylum spp.
R: Guinardia spp.
R: Pleurosigma spp.
R: Rhizosolenia spp.
R: Tropidoneis spp.
R: Lauderia spp.
R: Navicula spp.
R: Licmophora spp.
R: Asteromphalus spp.
R: Leptocylindrus spp.
R: Asterionellopsis spp.
R: Detonula spp.
R: Eucampia
R: Entomoneis
Others:
R: Dictyocha spp.
Zooplankton:
R: fecal pellets, nauplii, tintinnids, calanoids, fish larvae, eggs
* Environmental Information *
TIME: 0720 PT
COLLECTOR: Hannah McGrath
Water Temperature: 14.1°C
Water Conditions: calm waves
Water Color: 5Y 2/2
Visibility: 4.5 m
Tide: rising, 0.40m, high at 1048h
Chlorophyll: 0.426mg/m^3 by in vivo RFU
Sky: sunny/ clear skies, 0% cloud
Air Temperature: 13.89°C
Wind: offline, 2.24m/S
Rare (R): <1% ~~~ Present (P): 1 – 9% ~~~ Common (C): 10 – 49% ~~~ Abundant (A): >= 50%