Santa Cruz Wharf
Wednesday, May 15, 2024
* Quick HAB Observations *
– Pseudo-nitzschia: Present
– Alexandrium: Rare
– Dinophysis: Rare
– Margalefidinium: None
* Impressions *
Overcast/marine layer at the wharf this morning. Phytoplankton biomass decreased this week and the net tow remains mostly diatoms. Eucampia once again was the most abundant, but there was a visible increase in Akashiwo. The Pseudo-nitzschia assemblage shifted a bit and were mostly delicatissima size this week. P. multiseries counts decreased (2 orders of magnitude) and Alexandrium counts decreased as well.
Dinoflagellates:
C: Akashiwo
C: Prorocentrum
P: Ceratium
R: Dinophysis
R: Alexandrium
R: LRB
R: Protoperidinium
R: Boreadinium
R: Gymnodinium
R: Gyrodinium
R: Amylax
R: Oxyphysis
R: Polykrikos
Diatoms:
A: Eucampia
C: Thalassiosira
P: Guinardia
P: Pseudo-nitzschia
R: Detonula
R: Lauderia
R: Dactyliosolen
R: Chaetoceros
R: Asteromphalus
R: Coscinodiscus
R: Pleurosigma
R: Ditylum
R: Tropidoneis
R: Asterionellopsis
R: Probosica
R: Thalassionema
R: Entomoneis
* Environmental Information *
Time: 9:00 am
Collector: M. Conci
Water Conditions (SCW)
Water Temperature: 12.5 C
Water Conditions: Calm
Water Color/Code: Green, 10GY 3/4 (#29)
Water Visibility: 5 ft
Tide: Falling, Low – 11:54, 0.1 ft
Surf Report: NW swell, 3-4 ft
Weather Conditions (KudelaHawk)
Sky: Overcast/marine layer
Air Temperature: 50.5 F (10.3 C)
Wind: 2 mph, N
Solar radiation: 152 watts/m^2
Monterey Wharf II
Wednesday, May 15, 2024
* Quick HAB Observations *
– Pseudo-nitzschia: Common
– Alexandrium: None
– Dinophysis: Rare
– Margalefidinium: Rare
* Impressions *
The wharf this morning was windy and cloudy. There was a lot of activity at the wharf. The surface of the water had lots of sea bird feathers. The water this week was a slightly darker green than last week with a visibility of 4.5m. Chlorophyll slightly decreased from last week. Diatoms dominated the water column. Chaetoceros, Pseudo-nitzschia, Guinardia, Thalassiosira, and Detonula were common. Eucampia and Lauderia were present. The HAB species that were observed in the water this morning included Pseudo-nitzschia, Dinophysis, Cochlodinium and Akashiwo sanguinea.
Dinoflagellates:
R: Akashiwo sanguinea
R: Prorocentrum spp.
R: Dinophysis spp.
R: Ceratium spp.
R: Gonyaulax spinifera
R: Protoperidinium spp.
R: Noctiluca spp.
R: Scrippsiella spp.
R: Gyrodinium spp
R: Polykrikos spp.
R: Cochlodinium spp.
R: Pyrophacus spp.
R: Heterocapsa spp.
R: Amylax
Diatoms:
C: Chaetoceros spp.
C: Thalassiosira spp.
R: Coscinodiscus spp.
C: Pseudo-nitzschia spp.
R: Ditylum spp.
C: Guinardia spp.
R: Pleurosigma spp.
R: Thalassionema spp.
R: Skeletonema spp.
R: Tropidoneis spp.
P: Lauderia spp.
R: Navicula spp.
R: Cylindrotheca spp.
R: Licmophora spp.
R: Odontella spp.
R: Asteromphalus spp.
R: Leptocylindrus spp.
R: Asterionellopsis spp.
R: Proboscia spp.
R: Detonula spp.
P: Eucampia
R: Entomoneis
R: Lioloma
Others:
R: Acantharians
Zooplankton:
R: fecal pellets, nauplii, tintinnids, calanoids, fish larvae, eggs
* Environmental Information *
TIME: 0712PT
COLLECTOR: Hannah McGrath
Water Temperature: 12.2°C
Water Conditions: relatively calm
Water Color: 10Y 2/2
Visibility: 4.5 m
Tide: Falling, 0.91 m, low at 1152 h
Chlorophyll: 42.79mg/m^3 by in vivo RFU
Sky: cloudy/misting, 100% cloud
Air Temperature: 10.00°C
Wind: offline, 2.24m/S
Rare (R): <1% ~~~ Present (P): 1 – 9% ~~~ Common (C): 10 – 49% ~~~ Abundant (A): >= 50%